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Yin Y, Wang S, Xie D, Pan S, Fu H, Feng Z, Gao C, Ge X. Hyperbaric oxygen therapy promotes the browning of white fat and contributes to the healing of diabetic wounds. Int Wound J 2024; 21:e14867. [PMID: 38597295 PMCID: PMC11005105 DOI: 10.1111/iwj.14867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/11/2024] Open
Abstract
Non-healing wounds are one of the chronic complications of diabetes and have remained a worldwide challenge as one of the major health problems. Hyperbaric oxygen (HBO) therapy is proven to be very successful for diabetic wound treatment, for which the molecular basis is not understood. Adipocytes regulate multiple aspects of repair and may be therapeutic for inflammatory diseases and defective wound healing associated with aging and diabetes. Endothelial cell-derived extracellular vesicles could promote wound healing in diabetes. To study the mechanism by which HBO promotes wound healing in diabetes, we investigated the effect of HBO on fat cells in diabetic mice. A diabetic wound mouse model was established and treated with HBO. Haematoxylin and eosin (H&E) staining and immunofluorescence were used for the analysis of wound healing. To further explore the mechanism, we performed whole-genome sequencing on extracellular vesicles (EVs). Furthermore, we conducted in vitro experiments. Specifically, exosomes were collected from human umbilical vein endothelial cell (HUVEC) cells after HBO treatment, and then these exosomes were co-incubated with adipose tissue. The wound healing rate in diabetic mice treated with HBO was significantly higher. HBO therapy promotes the proliferation of adipose precursor cells. HUVEC-derived exosomes treated with HBO significantly promoted fat cell browning. These data clarify that HBO therapy may promote vascular endothelial cell proliferation and migration, and promote browning of fat cells through vascular endothelial cells derived exosomes, thereby promoting diabetic wound healing. This provides new ideas for the application of HBO therapy in the treatment of diabetic trauma.
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Affiliation(s)
- Yue Yin
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shang‐Yuan Wang
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Di Xie
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shu‐Ming Pan
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Hui‐min Fu
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Zhi‐hui Feng
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Cheng‐Jin Gao
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xiao‐Li Ge
- Department of Emergency MedicineXinhua Hospital affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
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2
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Leem KH, Kim S, Kim HW, Park HJ. Downregulation of microRNA-330-5p induces manic-like behaviors in REM sleep-deprived rats by enhancing tyrosine hydroxylase expression. CNS Neurosci Ther 2023; 29:1525-1536. [PMID: 36794530 PMCID: PMC10173715 DOI: 10.1111/cns.14121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/13/2022] [Accepted: 01/20/2023] [Indexed: 02/17/2023] Open
Abstract
AIM In our pilot study, we found an increase in tyrosine hydroxylase (Th) mRNA expression in the prefrontal cortex of 72-h REM sleep-deprived (SD) rats, a mania model. Additionally, the expression levels of miR-325-3p, miR-326-3p, and miR-330-5p, the predicted target miRNAs on TH, were significantly decreased. Based on these results, in this study, we investigated whether miRNA-325-3p, miR-326-3p, and miR-330-5p modulate TH and manic-like behaviors in SD rats. METHODS Manic-like behaviors were assessed using the open field test (OFT) and elevated plus-maze (EPM) test. The direct binding activity of miRNAs to the 3'-untranslated region (3'-UTR) of the Th gene was measured in HEK-293 cells using a luciferase reporter system. We also examined mRNA and protein expression of TH after intracerebroventricular (ICV) injection of miR-330-5p agomir to SD rats, along with manic-like behaviors. RESULTS We observed an upregulation in mRNA and protein expression of TH and downregulation in miRNA-325-3p, miR-326-3p, and miR-330-5p expressions in the prefrontal cortex of SD rats, together with increased manic-like behaviors. The luciferase reporter assay showed that miR-330-5p could repress TH expression through direct binding to its target site in the 3'-UTR of Th, whereas miR-326-3p and miR-330-5p could not. In addition, ICV injection of miR-330-5p agomir alleviated the increase in TH expression in the prefrontal cortex of SD rats and manic-like behaviors. CONCLUSIONS TH expression regulation through miR-330-5p may be implicated in the pathophysiology of mania in SD rats.
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Affiliation(s)
- Kang Hyun Leem
- Department of Herbology, College of Korean MedicineSemyung UniversityJecheonKorea
| | - Sanga Kim
- Department of Pharmacology, School of MedicineKyung Hee UniversitySeoulKorea
| | - Hee Won Kim
- Department of Medical Engineering, Graduate SchoolKyung Hee UniversitySeoulKorea
| | - Hae Jeong Park
- Department of Pharmacology, School of MedicineKyung Hee UniversitySeoulKorea
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3
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Wang CY, Qiu ZJ, Zhang P, Tang XQ. Differentiated Embryo-Chondrocyte Expressed Gene1 and Parkinson's Disease: New Insights and Therapeutic Perspectives. Curr Neuropharmacol 2023; 21:2251-2265. [PMID: 37132111 PMCID: PMC10556388 DOI: 10.2174/1570159x21666230502123729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/05/2022] [Accepted: 10/09/2022] [Indexed: 05/04/2023] Open
Abstract
Differentiated embryo-chondrocyte expressed gene1 (DEC1), an important transcription factor with a basic helix-loop-helix domain, is ubiquitously expressed in both human embryonic and adult tissues. DEC1 is involved in neural differentiation and neural maturation in the central nervous system (CNS). Recent studies suggest that DEC1 protects against Parkinson's disease (PD) by regulating apoptosis, oxidative stress, lipid metabolism, immune system, and glucose metabolism disorders. In this review, we summarize the recent progress on the role of DEC1 in the pathogenesis of PD and provide new insights into the prevention and treatment of PD and neurodegenerative diseases.
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Affiliation(s)
- Chun-Yan Wang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Zheng-Jie Qiu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Ping Zhang
- The Affiliated Nanhua Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Xiao-Qing Tang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
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4
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Li X, Zhang X, Hou X, Bing X, Zhu F, Wu X, Guo N, Zhao H, Xu F, Xia M. Obstructive sleep apnea-increased DEC1 regulates systemic inflammation and oxidative stress that promotes development of pulmonary arterial hypertension. Apoptosis 2022; 28:432-446. [PMID: 36484960 DOI: 10.1007/s10495-022-01797-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2022] [Indexed: 12/14/2022]
Abstract
Obstructive sleep apnea (OSA), characterized by chronic intermittent hypoxia (CIH), is a common risk factor for pulmonary arterial hypertension (PAH). As a hypoxia-induced transcription factor, differentially expressed in chondrocytes (DEC1) negatively regulates the transcription of peroxisome proliferative activated receptor-γ (PPARγ), a recognized protective factor of PAH. However, whether and how DEC1 is associated with PAH pathogenesis remains unclear. In the present study, we found that DEC1 was increased in lungs and pulmonary arterial smooth muscle cells (PASMCs) of rat models of OSA-associated PAH. Oxidative indicators and inflammatory cytokines were also elevated in the blood of the rats. Similarly, hypoxia-treated PASMCs displayed enhanced DEC1 expression and reduced PPARγ expression in vitro. Functionally, DEC1 overexpression exacerbated reactive oxygen species (ROS) production and the expression of pro-inflammatory cytokines (such as TNFα, IL-1β, IL-6, and MCP-1) in PASMCs. Conversely, shRNA knockdown of Dec1 increased PPARγ expression but attenuated hypoxia-induced oxidative stress and inflammatory responses in PASMCs. Additionally, DEC1 overexpression promoted PASMC proliferation, which was drastically attenuated by a PPARγ agonist rosiglitazone. Collectively, these results suggest that hypoxia-induced DEC1 inhibits PPARγ, and that this is a predominant mechanism underpinning oxidative stress and inflammatory responses in PASMCs during PAH. DEC1 could be used as a potential target to treat PAH.
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Affiliation(s)
- Xiaoming Li
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiang Zhang
- Department of Pharmacy, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Xiaozhi Hou
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Xin Bing
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Fangyuan Zhu
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Xinhao Wu
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Na Guo
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Hui Zhao
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China
| | - Fenglei Xu
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China.
| | - Ming Xia
- Department of Otolaryngology, Shandong Provincial Hospital affiliated to Shandong First Medical University, 250021, Jinan, Shandong Province, China.
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5
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Hu X, Wang W, Hu Y, Chen W, Wang C, Yang L, Mao T, Xia K, Min A, Xiong H, Su T. Overexpression of DEC1 in the epithelium of OSF promotes mesenchymal transition via activating FAK/Akt signal axis. J Oral Pathol Med 2022; 51:780-790. [PMID: 36053880 DOI: 10.1111/jop.13350] [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: 12/17/2021] [Revised: 06/28/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Previous studies on oral submucous fibrosis (OSF) mostly focused on the activation of fibroblasts and collagen metabolism, while little involved in the epithelium. As we have reported the role of differentiated embryo chondrocyte expressed gene 1 (DEC1) in oral cancer and other precancerous lesions, this research aimed to explore its role in the OSF epithelium. METHODS Expression of DEC1 and other proteins were investigated in tissue array constructed with 33 OSF and 14 normal oral mucosa (NOM) tissues. Human oral keratinocytes treated with arecoline and/or hypoxia were used to simulate OSF epithelium and detected for morphological and protein alterations. Inhibition of DEC1 was used to explore its mediating role. Finally, animal models of OSF constructed by locally arecoline injecting in buccal mucosa were used to verify our findings. RESULTS DEC1 overexpression could be detected in the epithelium of OSF compared with that in NOM followed by phosphorylated FAK and Akt, and DEC1 showed a significant positive correlation with them. Cytology experiment revealed that OSF-like treatment could upregulate DEC1 expression followed by phosphorylated FAK, Akt, but inhibit E-cadherin, while knockdown of DEC1 could suppress the effects. Additionally, OSF mice revealed higher expression of DEC1 in the epithelium of buccal mucosa, along with synchronized alterations of phosphorylated FAK and Akt. CONCLUSION In the epithelium of OSF, overexpression of DEC1 induced activation of FAK/Akt signal axis, caused mesenchymal transition in epithelial cells, and may promote malignant transformation of OSF. Targeting DEC1 in OSF could be promising a new target for the diagnosis and treatment of this process.
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Affiliation(s)
- Xin Hu
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Weiming Wang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Yue Hu
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Wenxin Chen
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Can Wang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Liudi Yang
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Ting Mao
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Kun Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, P.R. China
| | - Anjie Min
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China
| | - Haofeng Xiong
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China.,Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, P.R. China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P.R. China
| | - Tong Su
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Research Center of Oral and Maxillofacial Tumor, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.,Institute of Oral Precancerous Lesions, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P.R. China
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6
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Modulation of CREB and its associated upstream signaling pathways in pesticide-induced neurotoxicity. Mol Cell Biochem 2022; 477:2581-2593. [PMID: 35596844 PMCID: PMC9618525 DOI: 10.1007/s11010-022-04472-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 05/04/2022] [Indexed: 11/13/2022]
Abstract
Human beings are exposed to various environmental xenobiotics throughout their life consisting of a broad range of physical and chemical agents that impart bodily harm. Among these, pesticide exposure that destroys insects mainly by damaging their central nervous system also exerts neurotoxic effects on humans and is implicated in the etiology of several degenerative disorders. The connectivity between CREB (cAMP Response Element Binding Protein) signaling activation and neuronal activity is of broad interest and has been thoroughly studied in various diseased states. Several genes, as well as protein kinases, are involved in the phosphorylation of CREB, including BDNF (Brain-derived neurotrophic factor), Pi3K (phosphoinositide 3-kinase), AKT (Protein kinase B), RAS (Rat Sarcoma), MEK (Mitogen-activated protein kinase), PLC (Phospholipase C), and PKC (Protein kinase C) that play an essential role in neuronal plasticity, long-term potentiation, neuronal survival, learning, and memory formation, cognitive function, synaptic transmission, and suppressing apoptosis. These elements, either singularly or in a cascade, can result in the modulation of CREB, making it a vulnerable target for various neurotoxic agents, including pesticides. This review provides insight into how these various intracellular signaling pathways converge to bring about CREB activation and how the activated or deactivated CREB levels can affect the gene expression of the upstream molecules. We also discuss the various target genes within the cascade vulnerable to different types of pesticides. Thus, this review will facilitate future investigations associated with pesticide neurotoxicity and identify valuable therapeutic targets.
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7
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Jia Y, Liu Y, Zhu J, Liu L, Ma X, Liu D, Han S, Zhang L, Ling ZQ, Wang Y. DEC1 promotes progression of Helicobacter pylori-positive gastric cancer by regulating Akt/NF-κB pathway. J Cell Mol Med 2022; 26:1943-1954. [PMID: 35122398 PMCID: PMC8980912 DOI: 10.1111/jcmm.17219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 12/23/2021] [Accepted: 01/22/2022] [Indexed: 11/30/2022] Open
Abstract
Helicobacter pylori (H. pylori) infection plays a crucial role in the initiation and progression of gastric cancer (GC). Differentiated embryo‐chondrocyte expressed gene 1 (DEC1) is dysregulated in some cancers and may regulate cell proliferation in specific contexts. Of note, DEC1 is emerging as one of the important factors regulating cellular responses in microenvironment. However, the triggers and precise regulation mechanism for DEC1 during inflammatory carcinoma transformation of GC are unclear. In this study, we identified DEC1 was upregulated in both H. pylori‐infected gastric tissues and GC cells. DEC1 expression was positively associated with H. pylori infection status and GC progression. DEC1‐positive expression indicated a poorer prognosis in H. pylori‐positive GC. DEC1 was required for H. pylori‐induced GC cells proliferation. Mechanistically, H. pylori infection significantly activated Akt/NF‐κB signal pathway and this induction depend on DEC1 expression level in GC cells. Importantly, their interaction pathway was further verified by H. pylori‐positive gastritis mice model. Taken together, our findings identified a novel function of DEC1 in GC. H. pylori infection induce DEC1 expression, and which leading to the progression of GC through activating Akt/ NF‐κB signalling pathway. Blocking DEC1/Akt/NF‐κB, therefore, presents a promising novel therapeutic strategy for H. pylori‐positive GC.
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Affiliation(s)
- Yanfei Jia
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China.,Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yanyan Liu
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Clinical Laboratory, Qilu Hospital, Shandong University, Jinan, China
| | - Jingyu Zhu
- Department of Gastroenterology, Jinan Central Hospital, Shandong First Medical University, Jinan, China
| | - Liang Liu
- Department of Gastroenterology, Jinan Central Hospital, Shandong First Medical University, Jinan, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China.,Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Duanrui Liu
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuyi Han
- Medical Research & Laboratory Diagnostic Center, Jinan Central Hospital, Shandong First Medical University, Jinan, China
| | - Lulu Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China.,Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhi-Qiang Ling
- Zhejiang Cancer Institute, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Yunshan Wang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China.,Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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8
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Meng X, Zhong J, Zeng C, Yung KKL, Zhang X, Wu X, Qu S. MiR-30a-5p Regulates GLT-1 Function via a PKCα-Mediated Ubiquitin Degradation Pathway in a Mouse Model of Parkinson's Disease. ACS Chem Neurosci 2021; 12:1578-1592. [PMID: 33882234 DOI: 10.1021/acschemneuro.1c00076] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Glutamate excitotoxicity is caused by dysfunctional glutamate transporters and plays an important role in the pathogenesis of Parkinson's disease (PD); however, the mechanisms that underlie the regulation of glutamate transporters in PD are still not fully elucidated. MicroRNAs(miRNA), which are abundant in astrocytes and neurons, have been reported to play key roles in regulating the translation of glutamate-transporter mRNA. In this study, we hypothesized that the miR-30a-5p contributes to the pathogenesis of PD by regulating the ubiquitin-mediated degradation of glutamate transporter 1 (GLT-1). We demonstrated that short-hairpin RNA-mediated knockdown of miR-30a-5p ameliorated motor deficits and pathological changes like astrogliosis and reactive microgliosis in a mouse model of PD (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice). Western blotting and immunofluorescent labeling revealed that miR-30a-5p suppressed the expression and function of GLT-1 in MPTP-treated mice and specifically in astrocytes treated with 1-methyl-4-phenylpyridinium (MPP+) (cell model of PD). Both in vitro and in vivo, we found that miR-30a-5p knockdown promoted glutamate uptake and increased GLT-1 expression by hindering GLT-1 ubiquitination and subsequent degradation in a PKCα-dependent manner. Therefore, we conclude that miR-30a-5p represents a potential therapeutic target for the treatment of PD.
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Affiliation(s)
- Xingjun Meng
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Central Laboratory and Department of Neurology, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde Foshan), Foshan, Guangdong 528300, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jianping Zhong
- Department of Neurology, Shunde Hospital of Southern Medical University (The First People’s Hospital of Shunde Foshan), Foshan, Guangdong 528300, China
| | - Chong Zeng
- Central Laboratory and Department of Neurology, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde Foshan), Foshan, Guangdong 528300, China
| | - Ken Kin Lam Yung
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong, China
| | - Xiuping Zhang
- Teaching Center of Experimental Medicine, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiaojuan Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Shaogang Qu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Central Laboratory and Department of Neurology, Shunde Hospital, Southern Medical University (The First People’s Hospital of Shunde Foshan), Foshan, Guangdong 528300, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
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9
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Yi Y, Liao B, Zheng Z, Yang X, Yang Y, Zhou Y, Tan B, Yang X. Downregulation of DEC1 inhibits proliferation, migration and invasion, and induces apoptosis in ovarian cancer cells via regulation of Wnt/β-catenin signaling pathway. Exp Ther Med 2021; 21:372. [PMID: 33732345 PMCID: PMC7903451 DOI: 10.3892/etm.2021.9803] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/17/2020] [Indexed: 12/12/2022] Open
Abstract
DEC1 has been reported to regulate the expression of multiple target genes, participate in cell differentiation, apoptosis, aging and the development and progression of numerous tumors, but the detailed effects and possible mechanisms of DEC1 in ovarian cancer (OC) remain unknown. The present study aimed to investigate the expression and mechanism of function of DEC1 in OC. The present results demonstrated that DEC1 was highly expressed in OC tissues and cell lines using reverse transcription-quantitative PCR, western blotting and immunohistochemistry, and high expression of DEC1 was negatively associated with the prognosis of patients with OC. In addition, knockdown of DEC1 significantly inhibited proliferation in SKOV3 and OVCAR3 cells compared with control. DEC1 knockdown also induced apoptosis and increased the expression of apoptosis-related proteins in OC cells. The results suggested that knockdown of DEC1 inhibited OC cell migration and invasion via regulation of epithelial-mesenchymal transition-related protein. It was also found that DEC1 knockdown significantly inhibited the Wnt/β-catenin pathway. Collectively, the current results indicated that knockdown of DEC1 inhibited proliferation, migration and invasion, and induced apoptosis in OC cells via modulating the Wnt/β-catenin signaling pathway. Thus, DEC1 may participate in malignant progression of OC, and may be a target for treatment and diagnosis of OC.
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Affiliation(s)
- Yun Yi
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
| | - Bing Liao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Ziwen Zheng
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
| | - Xiaorong Yang
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
| | - Yunsheng Yang
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
| | - Yanfang Zhou
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
| | - Buzhen Tan
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Xinfeng Yang
- Department of Gynecological Oncology, Cancer Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330029, P.R. China
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Becerra GP, Rojas-Rodríguez F, Ramírez D, Loaiza AE, Tobar-Tosse F, Mejía SM, González J. Structural and functional computational analysis of nicotine analogs as potential neuroprotective compounds in Parkinson disease. Comput Biol Chem 2020; 86:107266. [PMID: 32388154 DOI: 10.1016/j.compbiolchem.2020.107266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/01/2020] [Accepted: 04/13/2020] [Indexed: 11/27/2022]
Abstract
As the mechanism of interaction between nicotinic receptors with nicotine analogs is not yet fully understood, information at molecular level obtained from computational calculations is needed. In this sense, this work is a computational study of eight nicotine analogs, all with pyrrolidine ring modifications over a nicotine-based backbone optimized with B3LYP-D3/aug-cc-pVDZ. A molecular characterization was performed focusing on geometrical parameters such as pseudo-rotation angles, atomic charges, HOMO and LUMO orbitals, reactivity indexes and intermolecular interactions. Three analogs, A2 (3-(1,3-dimethyl-4,5-dihydro-1h-pirazole-5-yl) pyridine), A3 (3-(3-methyl-4,5-dihydro-1H-pyrazol-5-yl)-pyridine) and A8 (5-methyl-3-(pyridine-3-yl)-4,5-dihydroisoxazole), were filtered suggesting putative neuroprotective activity taking into account different reactivity values, such as their lowest hardness: 2.37 eV (A8), 2.43 eV (A2) and 2.56 eV (A3), compared to the highest hardness value found: 2.71 eV for A5 (3-((2S,4R)-4-(fluoromethyl)-1-methylpyrrolidine-2-il) pyridine), similar to the value of nicotine (2.70 eV). Additionally, molecular docking of all 8 nicotine analogs with the α 7 nicotinic acetylcholine receptor (α 7 nAChR) was performed. High values of interaction between the receptor and the three nicotine analogs were obtained: A3 (-7.1 kcal/mol), A2 (-6.9 kcal/mol) and A8 (-6.8 kcal/mol); whereas the affinity energy of nicotine was -6.4 kcal/mol. Leu116 and Trp145 are key residues in the binding site of α 7 nAChR interacting with nicotine analogs. Therefore, based upon these results, possible application of these nicotine analogs as neuroprotective compounds and potential implication at the design of novel Parkinson's treatments is evidenced.
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Affiliation(s)
- Gina Paola Becerra
- Laboratorio de Bioquímica Computacional Estructural y Bioinformática, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia; Laboratorio de Química Computacional, Departamento de Química, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Felipe Rojas-Rodríguez
- Laboratorio de Bioquímica Computacional Estructural y Bioinformática, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - David Ramírez
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, El Llano Subercaseaux 2801-Piso 5, 8900000, Santiago, Chile
| | - Alix E Loaiza
- Laboratorio de Síntesis Orgánica, Departamento de Química, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Fabian Tobar-Tosse
- Departamento de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Pontificia Universidad Javeriana Cali, Cali, Colombia
| | - Sol M Mejía
- Laboratorio de Química Computacional, Departamento de Química, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia.
| | - Janneth González
- Laboratorio de Bioquímica Computacional Estructural y Bioinformática, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia.
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11
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Li S, Peng D, Yin ZQ, Zhu W, Hu XT, Liu CW. Effect of DEC1 on the proliferation, adhesion, invasion and epithelial-mesenchymal transition of osteosarcoma cells. Exp Ther Med 2020; 19:2360-2366. [PMID: 32104304 DOI: 10.3892/etm.2020.8459] [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: 03/22/2019] [Accepted: 12/19/2019] [Indexed: 12/28/2022] Open
Abstract
Differentiated embryonic chondrocyte-expressed gene 1 (DEC1) is associated with various types of human cancer; however, there is limited data regarding the functions of DEC1 in osteosarcoma. The present study aimed to examine the expression of DEC1 in human osteosarcoma tissues and cell lines. Furthermore, the effects of DEC1 on the proliferation, adhesion, invasion and epithelial-mesenchymal transition (EMT) of osteosarcoma cells were investigated. Using reverse transcription-quantitative PCR and western blot analysis, it was found that the expression levels of DEC1 were higher in human osteosarcoma tissues and osteosarcoma cell lines than in the controls. Both gain- and loss-of-function experiments suggested that DEC1 promotes the proliferation, adhesion and invasion of osteosarcoma cells in vitro, as determined by MTT, cell adhesion and cell invasion assays, respectively. Additionally, DEC1 was found to upregulate the mesenchymal markers N-cadherin and vimentin, whilst downregulating the epithelial marker E-cadherin. In conclusion, this present study showed increased expression levels of DEC1 in human osteosarcoma tissues and cell lines, and identified that DEC1 may exert its effect on osteosarcoma progression by promoting cell proliferation, adhesion and invasion. Furthermore, DEC1 was shown to have an inducible effect on EMT in osteosarcoma cell lines, thus contributing to the aggressiveness of osteosarcoma cells. This initial study indicated that DEC1 may serve as a novel molecular target for the treatment of osteosarcoma.
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Affiliation(s)
- Shuai Li
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Dan Peng
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Zi-Qing Yin
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Wei Zhu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Xuan-Tao Hu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Cong-Wei Liu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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12
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Rojas-Rodríguez F, Morantes C, Pinzón A, Barreto GE, Cabezas R, Mariño-Ramírez L, González J. Machine Learning Neuroprotective Strategy Reveals a Unique Set of Parkinson Therapeutic Nicotine Analogs. THE OPEN BIOINFORMATICS JOURNAL 2020; 13:1-14. [PMID: 33927788 PMCID: PMC8081347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS Present a novel machine learning computational strategy to predict the neuroprotection potential of nicotine analogs acting over the behavior of unpaired signaling pathways in Parkinson's disease. BACKGROUND Dopaminergic replacement has been used for Parkinson's Disease (PD) treatment with positive effects on motor symptomatology but low progression and prevention effects. Epidemiological studies have shown that nicotine consumption decreases PD prevalence through neuroprotective mechanisms activation associated with the overstimulation of signaling pathways (SP) such as PI3K/AKT through nicotinic acetylcholine receptors (e.g α7 nAChRs) and over-expression of anti-apoptotic genes such as Bcl-2. Nicotine analogs with similar neuroprotective activity but decreased secondary effects remain as a promissory field. OBJECTIVE The objective of this study is to develop an interdisciplinary computational strategy predicting the neuroprotective activity of a series of 8 novel nicotine analogs over Parkinson's disease. METHODS We present a computational strategy integrating structural bioinformatics, SP manual reconstruction, and deep learning to predict the potential neuroprotective activity of 8 novel nicotine analogs over the behavior of PI3K/AKT. We performed a protein-ligand analysis between nicotine analogs and α7 nAChRs receptor using geometrical conformers, physicochemical characterization of the analogs and developed manually curated neuroprotective datasets to analyze their potential activity. Additionally, we developed a predictive machine-learning model for neuroprotection in PD through the integration of Markov Chain Monte-Carlo transition matrix for the 2 SP with synthetic training datasets of the physicochemical properties and structural dataset. RESULTS Our model was able to predict the potential neuroprotective activity of seven new nicotine analogs based on the binomial Bcl-2 response regulated by the activation of PI3K/AKT. CONCLUSION Hereby, we present a robust novel strategy to assess the neuroprotective potential of biomolecules based on SP architecture. Our theoretical strategy can be further applied to the study of new treatments related to SP deregulation and may ultimately offer new opportunities for therapeutic interventions in neurodegenerative diseases.
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Affiliation(s)
- Felipe Rojas-Rodríguez
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana. Bogotá D.C, Republic of Colombia,Address correspondence to the author at the Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana. Bogotá D.C, Republic of Colombia;
| | - Carlos Morantes
- Departamento de Biología, Universidad Nacional de Colombia. Bogotá, Republic of Colombia
| | - Andrés Pinzón
- Instituto de Genética, Universidad Nacional de Colombia, Bogotá, Republic of Colombia
| | - George E. Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
| | - Ricardo Cabezas
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana. Bogotá D.C, Republic of Colombia
| | - Leonardo Mariño-Ramírez
- National Center for Biotechnology Information, National Library of Medicine, National Institute of Health, 8600 Rockville Pike, Bethesda, MD 20894, USA
| | - Janneth González
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana. Bogotá D.C, Republic of Colombia
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13
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Zhu Z, Yichen W, Ziheng Z, Dinghao G, Ming L, Wei L, Enfang S, Gang H, Honda H, Jian Y. The loss of dopaminergic neurons in DEC1 deficient mice potentially involves the decrease of PI3K/Akt/GSK3β signaling. Aging (Albany NY) 2019; 11:12733-12753. [PMID: 31884423 PMCID: PMC6949058 DOI: 10.18632/aging.102599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 12/02/2019] [Indexed: 12/19/2022]
Abstract
Here we study the effects of differentiated embryonic chondrocyte gene 1(DEC1) deficiency on midbrain dopaminergic(DA) neurons in the substantia nigra pars compacta(SNpc) through behavioral, histological and molecular analysis. We have found that compared to the age-matched WT mice, DEC1 deficient mice show a decrease in locomotor activity and motor coordination, which shows the main features of Parkinson's disease(PD). But there is no significant difference in spatial learning and memory skills between WT and DEC1 KO mice. Compared to the age-matched WT mice, DEC1 deficient mice exhibit the loss of DA neurons in the SNpc and reduction of dopamine and its metabolites in the striatum. The activated caspase-3 and TH/TUNEL+ cells increase in the SNpc of 6- and 12-month-old DEC1 KO mice compared to those of the age-matched WT mice. But we haven't found any NeuN/TUNEL+ cell increase in the hippocampus of the above two types of mice at the age of 6 months. Furthermore, DEC1 deficiency leads to a significant inhibition of PI3K/Akt/GSK3β signaling pathway. Additionally, LiCl could rescue the DA neuron loss of midbrain in the 6-month-old DEC1 KO mice. Taken together, the loss of DA neurons in the DEC1 deficient mice potentially involves the downregulation of PI3K/Akt/GSK3β signaling.
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Affiliation(s)
- Zhu Zhu
- Department of Pharmacology, Nanjing Medical University, Nanjing, China.,, Department of Pharmacology Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wu Yichen
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Zhang Ziheng
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Ge Dinghao
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Lu Ming
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Liu Wei
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Shan Enfang
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Hu Gang
- Department of Pharmacology, Nanjing Medical University, Nanjing, China.,, Department of Pharmacology Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hiroaki Honda
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yang Jian
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
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14
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Ji Y, Wang D, Zhang B, Lu H. Bergenin Ameliorates MPTP-Induced Parkinson’s Disease by Activating PI3K/Akt Signaling Pathway. J Alzheimers Dis 2019; 72:823-833. [PMID: 31658061 DOI: 10.3233/jad-190870] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yangfei Ji
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dan Wang
- Department of Cardiology, Zhengzhou Central Hospital, Zhengzhou, China
| | - Boai Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hong Lu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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15
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Zhong J, Xie J, Xiao J, Li D, Xu B, Wang X, Wen H, Zhou Z, Cheng Y, Xu J, Wang H. Inhibition of PDE4 by FCPR16 induces AMPK-dependent autophagy and confers neuroprotection in SH-SY5Y cells and neurons exposed to MPP +-induced oxidative insult. Free Radic Biol Med 2019; 135:87-101. [PMID: 30818055 DOI: 10.1016/j.freeradbiomed.2019.02.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/19/2019] [Accepted: 02/19/2019] [Indexed: 12/25/2022]
Abstract
The etiology of Parkinson's disease (PD) is generally not well understood, but it is believed to involve excessive oxidative insult. Hence, identifying therapeutic targets and compounds that exhibit protective effects against oxidative damage is a reasonable strategy to slow down the progression of PD. FCPR16 is a novel phosphodiesterase 4 inhibitor with little emetic potential. Our previous studies showed that FCPR16 was able to block 1-Methyl-4-phenylpyridine (MPP+)-induced oxidative damage in SH-SY5Y cells and neurons. However, the detailed mechanism of this is unknown. Here, we found that FCPR16 triggered autophagy in SH-SY5Y cells, as evidenced by an increased level of microtubule-associated protein 1 light chain 3 II (LC3-II) and decreased p62. Inhibition of autophagy by 3-MA or chloroquine decreased the effect of FCPR16 on the accumulation of autophagic vacuoles and the fluorescence signal of lysosomes. In SH-SY5Y cells treated with MPP+, we found that FCPR16 increased the level of LC3-II, and 3-MA attenuated the protective effect of FCPR16 against MPP+-induced toxicity. Treatment of SH-SY5Y cells with FCPR16 prevented MPP+-induced production of reactive oxygen species (ROS) and the decline of mitochondrial membrane potential (Δψm). Importantly, we also found that FCPR16 phosphorylated and thus activated AMP-activated protein kinase (AMPK) in SH-SY5Y cells treated with MPP+. In contrast, blockade of the AMPK pathway with compound C blocked the role of FCPR16 in autophagy enhancement. Similarly, the roles of FCPR16 in the production of ROS, decline of Δψm, and neuroprotection were blocked by compound C as well. Similar results were consistently obtained in primary cultured neurons. Taken together, these results suggest that FCPR16 is effective in protecting SH-SY5Y cells and neurons against oxidative stress via AMPK-dependent autophagy. Our findings indicate the potential application of FCPR16 in PD treatment.
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Affiliation(s)
- Jiahong Zhong
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jinfeng Xie
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jiao Xiao
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Dan Li
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Bingtian Xu
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Central Laboratory, Southern Medical University, Guangzhou, 510515, China
| | - Xinyi Wang
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Huizhen Wen
- Central Laboratory, Southern Medical University, Guangzhou, 510515, China
| | - Zhongzhen Zhou
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yufang Cheng
- Central Laboratory, Southern Medical University, Guangzhou, 510515, China
| | - Jiangping Xu
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Central Laboratory, Southern Medical University, Guangzhou, 510515, China; Center for Brian Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, 510515, China.
| | - Haitao Wang
- Department of Neuropharmacology and Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Center for Brian Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, 510515, China.
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16
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Shu T, Liu C, Pang M, He L, Yang B, Fan L, Zhang S, Wang X, Liu B, Rong L. Salvianolic acid B promotes neural differentiation of induced pluripotent stem cells via PI3K/AKT/GSK3β/β-catenin pathway. Neurosci Lett 2018; 671:154-160. [DOI: 10.1016/j.neulet.2018.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/15/2018] [Accepted: 02/04/2018] [Indexed: 11/25/2022]
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17
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Zhu Z, Wang Y, Ge D, Lu M, Liu W, Xiong J, Hu G, Li X, Yang J. Downregulation of DEC1 contributes to the neurotoxicity induced by MPP + by suppressing PI3K/Akt/GSK3β pathway. CNS Neurosci Ther 2017; 23:736-747. [PMID: 28734031 PMCID: PMC6492752 DOI: 10.1111/cns.12717] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 06/20/2017] [Accepted: 06/21/2017] [Indexed: 01/20/2023] Open
Abstract
AIM Differentiated embryonic chondrocyte gene 1 (DEC1) is involved in the neuronal differentiation and development. The aim of this study is to investigate the role of DEC1 in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPP+ )-induced PD model. METHODS The location of DEC1 and tyrosine hydroxylase (TH)-positive neurons were detected by immunofluorescence. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse subacute model of PD was established to evaluate the change of DEC1 expression in midbrain. Then, SH-SY5Y cells were used to investigate the role of DEC1 in MPP+ -induced neurotoxicity. RESULTS We showed that the co-expressed DEC1 and TH neurons took up more than 80% of the expressed TH neurons in the midbrain of mice. DEC1/TH double-positive neurons decreased by 40.6% in SNpc and 28.8% in VTA of MPTP-injured mice. Consistently, DEC1, TH and dopamine transporter (DAT) expression decreased in the midbrain of MPTP mice. In SY-SY5Y cells, MPP+ significantly suppressed DEC1 expression and increased the cleaved caspase 3/caspase 3 and Bax/Bcl-2. DEC1 overexpression relieved, whereas DEC1 knockdown aggravated MPP+ -induced cytotoxicity. Likewise, DEC1 overexpression and knockdown inversely regulated the expression of β-catenin and PI3Kp110α (PIK3CA), an essential role in Wnt/β-catenin and PI3K/Akt signaling pathways. Interestingly, LY294002, an inhibitor of PI3K/Akt signaling, aggravated, whereas LiCl, an activator of Wnt/β-catenin signaling, abolished the reduction in DEC1 by MPP+ . It is established that these two pathways are interconnected by the phosphorylation status of GSK3β. DEC1 overexpression increased but MPP+ and DEC1 knockdown decreased GSK3β phosphorylation. CONCLUSION Downregulation of DEC1 contributes to MPP+ -induced neurotoxicity by suppressing PI3K/Akt/GSK3β pathway.
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Affiliation(s)
- Zhu Zhu
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Yu‐Wen Wang
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Ding‐Hao Ge
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Ming Lu
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Wei Liu
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Jing Xiong
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Gang Hu
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Xiao‐Ping Li
- Department of pharmacologyNanjing Medical UniversityNanjingChina
| | - Jian Yang
- Department of pharmacologyNanjing Medical UniversityNanjingChina
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