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Peng B, Wang R, Zuo W, Liu H, Deng C, Jing X, Hu H, Zhao W, Qin P, Dai L, Chen Z, Zhang Y, Liu XA. Distinct correlation network of clinical characteristics in suicide attempters having adolescent major depressive disorder with non-suicidal self-injury. Transl Psychiatry 2024; 14:134. [PMID: 38443348 PMCID: PMC10914800 DOI: 10.1038/s41398-024-02843-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
Suicidal behavior and non-suicidal self-injury (NSSI) are common in adolescent patients with major depressive disorder (MDD). Thus, delineating the unique characteristics of suicide attempters having adolescent MDD with NSSI is important for suicide prediction in the clinical setting. Here, we performed psychological and biochemical assessments of 130 youths having MDD with NSSI. Participants were divided into two groups according to the presence/absence of suicide attempts (SAs). Our results demonstrated that the age of suicide attempters is lower than that of non-attempters in participants having adolescent MDD with NSSI; suicide attempters had higher Barratt Impulsiveness Scale (BIS-11) impulsivity scores and lower serum CRP and cortisol levels than those having MDD with NSSI alone, suggesting levels of cortisol and CRP were inversely correlated with SAs in patients with adolescent MDD with NSSI. Furthermore, multivariate regression analysis revealed that NSSI frequency in the last month and CRP levels were suicidal ideation predictors in adolescent MDD with NSSI, which may indicate that the increased frequency of NSSI behavior is a potential risk factor for suicide. Additionally, we explored the correlation between psychological and blood biochemical indicators to distinguish suicide attempters among participants having adolescent MDD with NSSI and identified a unique correlation network that could serve as a marker for suicide attempters. Our research data further suggested a complex correlation between the psychological and behavioral indicators of impulsivity and anger. Therefore, our study findings may provide clues to identify good clinical warning signs for SA in patients with adolescent MDD with NSSI.
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Grants
- 32371213 National Natural Science Foundation of China (National Science Foundation of China)
- This work was supported by grants from the National Natural Science Foundation of China (NSFC) (32371213 to X.A.L, 32000710 to Z.X.C, U20A2016 to Z.X.C), the STI2030-Major Projects (2022ZD0207100, Z.X.C), Shenzhen Medical Research Funds (D2301002 to P.W.Q and X.A.L), the Guangdong Basic and Applied Basic Research Foundation (2023A1515011743 to X.A.L, 2019A1515110190 to Z.X.C), the Shenzhen Science and Technology Program (KCXFZ20211020163549011 to X.A.L), Shenzhen Key Basic Research Project (JCYJ20200109115641762 to Z.X.C), Shenzhen governmental grant (ZDSYS20190902093601675 to Z.X.C), and CAS Key Laboratory of Brain Connectome and Manipulation (2019DP173024 to X.A.L and Z.X.C),Supported by Shenzhen Key Medical Discipline Construction Fund(No.SZXK041),Supported by Shenzhen Fund for Guangdong Provincial High-level Clinical Key Specialties(No.SZGSP013).
- Shenzhen Key Medical Discipline Construction Fund (No.SZXK041); the Shenzhen Fund for Guangdong Provincial High-level Clinical Key Specialties (No. SZGSP013 to B.P)
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Affiliation(s)
- Bo Peng
- Department of Depressive Disorders, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Ruoxi Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China
| | - Wenlong Zuo
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Haitao Liu
- Shenzhen Longgang District Maternity & Child Healthcare Hospital, Shenzhen, Guangdong, China
| | - Chunshan Deng
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China
| | - Xiaoyuan Jing
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China
| | - Hongtao Hu
- Department of Depressive Disorders, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Weitan Zhao
- Department of Depressive Disorders, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Peiwu Qin
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Lei Dai
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of the Chinese Academy of Sciences, 100049, Beijing, China
| | - Zuxin Chen
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China.
- University of the Chinese Academy of Sciences, 100049, Beijing, China.
| | - Yingli Zhang
- Department of Depressive Disorders, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China.
- Shenzhen Mental Health Center, Shenzhen, Guangdong, China.
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China.
- University of the Chinese Academy of Sciences, 100049, Beijing, China.
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Chu M, Wang R, Jing X, Li D, Fu G, Deng J, Xu Z, Zhao J, Liu Z, Fan Q, Pei L, Zeng Z, Liu C, Chen Z, Lu J, Liu XA. Conventional and multi-omics assessments of subacute inhalation toxicity due to propylene glycol and vegetable glycerin aerosol produced by electronic cigarettes. Ecotoxicol Environ Saf 2024; 271:116002. [PMID: 38277972 DOI: 10.1016/j.ecoenv.2024.116002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Propylene glycol (PG) and vegetable glycerin (VG) are the most common solvents used in electronic cigarette liquids. No long-term inhalation toxicity assessments have been performed combining conventional and multi-omics approaches on the potential respiratory effects of the solvents in vivo. In this study, the systemic toxicity of aerosol generated from a ceramic heating coil-based e-cigarette was evaluated. First, the aerosol properties were characterized, including carbonyl emissions, the particle size distribution, and aerosol temperatures. To determine toxicological effects, rats were exposed, through their nose only, to filtered air or a propylene glycol (PG)/ glycerin (VG) (50:50, %W/W) aerosol mixture at the target concentration of 3 mg/L for six hours daily over a continuous 28-day period. Compared with the air group, female rats in the PG/VG group exhibited significantly lower body weights during both the exposure period and recovery period, and this was linked to a reduced food intake. Male rats in the PG/VG group also experienced a significant decline in body weight during the exposure period. Importantly, rats exposed to the PG/VG aerosol showed only minimal biological effects compared to those with only air exposure, with no signs of toxicity. Moreover, the transcriptomic, proteomic, and metabolomic analyses of the rat lung tissues following aerosol exposure revealed a series of candidate pathways linking aerosol inhalation to altered lung functions, especially the inflammatory response and disease. Dysregulated pathways of arachidonic acids, the neuroactive ligand-receptor interaction, and the hematopoietic cell lineage were revealed through integrated multi-omics analysis. Therefore, our integrated multi-omics approach offers novel systemic insights and early evidence of environmental-related health hazards associated with an e-cigarette aerosol using two carrier solvents in a rat model.
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Affiliation(s)
- Ming Chu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; Laboratory of Life and Health Sciences, Shenzhen First union Technology Co., Ltd, Shenzhen 518103, China
| | - Ruoxi Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Xiaoyuan Jing
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Ding Li
- Laboratory of Life and Health Sciences, Shenzhen First union Technology Co., Ltd, Shenzhen 518103, China; Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen 518103, China
| | - Guofeng Fu
- Laboratory of Life and Health Sciences, Shenzhen First union Technology Co., Ltd, Shenzhen 518103, China
| | - Jingjing Deng
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen 518103, China
| | - Zhibin Xu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Jing Zhao
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen 518103, China
| | - Zhang Liu
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen 518103, China
| | - Qiming Fan
- Guangdong Zhongke EnHealth Science and Technology Co., Ltd. Foshan 528000, China
| | - Lanjie Pei
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - Zhi Zeng
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Chuan Liu
- Laboratory of Life and Health Sciences, Shenzhen First union Technology Co., Ltd, Shenzhen 518103, China
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS); Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jin Lu
- Laboratory of Life and Health Sciences, Shenzhen First union Technology Co., Ltd, Shenzhen 518103, China; Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen 518103, China.
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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3
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Xu X, Zheng S, Ren J, Li Z, Li J, Xu Z, Yuan F, Yang Q, Margetts AV, Pollock TA, Vilca SJ, Yang C, Chen G, Shen P, Li S, Xia J, Chen C, Zhou T, Zhu Y, Tuesta LM, Wang L, Kenny PJ, Liu XA, Chen Z. Hypothalamic CRF neurons facilitate brain reward function. Curr Biol 2024; 34:389-402.e5. [PMID: 38215742 PMCID: PMC10842365 DOI: 10.1016/j.cub.2023.12.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 11/14/2023] [Accepted: 12/13/2023] [Indexed: 01/14/2024]
Abstract
Aversive stimuli activate corticotropin-releasing factor (CRF)-expressing neurons in the paraventricular nucleus of hypothalamus (PVNCRF neurons) and other brain stress systems to facilitate avoidance behaviors. Appetitive stimuli also engage the brain stress systems, but their contributions to reward-related behaviors are less well understood. Here, we show that mice work vigorously to optically activate PVNCRF neurons in an operant chamber, indicating a reinforcing nature of these neurons. The reinforcing property of these neurons is not mediated by activation of the hypothalamic-pituitary-adrenal (HPA) axis. We found that PVNCRF neurons send direct projections to the ventral tegmental area (VTA), and selective activation of these projections induced robust self-stimulation behaviors, without activation of the HPA axis. Similar to the PVNCRF cell bodies, self-stimulation of PVNCRF-VTA projection was dramatically attenuated by systemic pretreatment of CRF receptor 1 or dopamine D1 receptor (D1R) antagonist and augmented by corticosterone synthesis inhibitor metyrapone, but not altered by dopamine D2 receptor (D2R) antagonist. Furthermore, we found that activation of PVNCRF-VTA projections increased c-Fos expression in the VTA dopamine neurons and rapidly triggered dopamine release in the nucleus accumbens (NAc), and microinfusion of D1R or D2R antagonist into the NAc decreased the self-stimulation of these projections. Together, our findings reveal an unappreciated role of PVNCRF neurons and their VTA projections in driving reward-related behaviors, independent of their core neuroendocrine functions. As activation of PVNCRF neurons is the final common path for many stress systems, our study suggests a novel mechanism underlying the positive reinforcing effect of stressful stimuli.
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Affiliation(s)
- Xinli Xu
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Shuidiao Zheng
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; The Affiliated Traditional Chinese Medicine Hospital of Guangzhou Medical University, Guangzhou 510130, Guangdong, China
| | - Jiayan Ren
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Zixuan Li
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinyan Li
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Zhibin Xu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Feng Yuan
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Qixing Yang
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Alexander V Margetts
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Tate A Pollock
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Samara J Vilca
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Canyu Yang
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Gaowei Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Peilei Shen
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Jianxun Xia
- Yunkang School of Medicine and Health, Nanfang College, Guangzhou 510970, Guangdong, China
| | - Chuyun Chen
- The Affiliated Traditional Chinese Medicine Hospital of Guangzhou Medical University, Guangzhou 510130, Guangdong, China
| | - Tao Zhou
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yingjie Zhu
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Luis M Tuesta
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Liping Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Paul J Kenny
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen 518055, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Li A, Li W, Ali T, Yang C, Liu Z, Gao R, He K, Liu XA, Chen Z, Yu ZJ, Li T, Li S. A novel dopamine D2 receptor-NR2B protein complex might contribute to morphine use disorders. Eur J Pharmacol 2023; 961:176174. [PMID: 37939993 DOI: 10.1016/j.ejphar.2023.176174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023]
Abstract
Dopamine receptors can form heteromeric interactions with other receptors, including glutamate receptors, and present a novel pharmacological target because it contribute to dopamine-dysregulated brain disorders such as addiction and other motor-related diseases. In addition, dopamine receptors D2 (D2Rs) and glutamate NMDA receptors subtype-NR2B have been implicated in morphine use disorders; however, the molecular mechanism underlying the heteromeric complex of these two receptors in morphine use disorders is unclear. Herein, we focus on interactions between D2R and NR2B in morphine-induced conditioned place preference (CPP) and hyperlocomotion mice models. We found that the D2R-NR2B complex significantly increases in morphine-induced mice models, accompanied by ERK signaling impairment, implying the complex could contribute to the morphine addiction pathophysiological process. Further, we design a brain-penetrant interfering peptide (TAT-D2-KT), which could disrupt interactions of D2R-NR2B and decrease addictive-like behaviors concurrent to ERK signaling improvement. In summary, our data provided the first evidence for a D2R-NMDAR complex formation in morphine use disorders and its underlying mechanism of ERK signaling, which could present a novel therapeutic target with direct implications for morphine acquisition and relapse treatment.
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Affiliation(s)
- Axiang Li
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Weifen Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Tahir Ali
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China; Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| | - Canyu Yang
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Zizhen Liu
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Ruyan Gao
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Kaiwu He
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Zuxin Chen
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China; Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), China.
| | - Zhi-Jian Yu
- Department of Infectious Diseases and Shenzhen Key Laboratory for Endogenous Infections, The 6th Affiliated Hospital of Shenzhen University Health Science Center, No 89, Taoyuan Road, Nanshan District, Shenzhen, 518052, China.
| | - Tao Li
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; NHC Key Laboratory of Forensic Science, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
| | - Shupeng Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China; Shenzhen Bay Laboratory, Shenzhen, 518055, China; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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5
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Jing X, Hong F, Xie Y, Xie Y, Shi F, Wang R, Wang L, Chen Z, Liu XA. Dose-dependent action of cordycepin on the microbiome-gut-brain-adipose axis in mice exposed to stress. Biomed Pharmacother 2023; 168:115796. [PMID: 38294969 DOI: 10.1016/j.biopha.2023.115796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 02/02/2024] Open
Abstract
The high risk for anxiety and depression among individuals with stress has become a growing concern globally. Stress-related mental disorders are often accompanied by symptoms of metabolic dysfunction. Cordycepin is a Chinese herbal medicine commonly used for its metabolism-enhancing effects. We aimed to investigate the dose-dependent effects of cordycepin on psycho-metabolic disorders induced by stress. Our behavioral tests revealed that 12.5 mg/kg cordycepin by oral gavage significantly attenuated the anxiety- and depression-like behaviors induced by stress in mice. At 25 mg/kg, cordycepin restored the reduced weight and cell size of adipose tissues caused by stress. Besides ameliorating the metabolic dysbiosis of gut microbiota due to stress, cordycepin significantly reduced the elevated contents of 5-hydroxyindoleacetic acid in the serum and prefrontal cortex at 12.5 mg/kg and reversed the decrease in adipose induced by stress at 25 mg/kg. Correlation analyses further revealed that 12.5 mg/kg cordycepin reversed stress-induced changes in the intestinal microbiome of NK4A214_group and decreased serum Myristic acid and PC(15:0/18:1(11Z)) and cytokines, such as IFN-γ and IL-1β. 25 mg/kg cordycepin reversed stress-induced changes in the abundances of Prevoteaceae_UCG-001 and Desulfovibrio, increased serum L-alanine level, and decreased serum Inosine-5'-monophosphate level. Cordycepin thereby ameliorated the anxiety- and depression-like behaviors as well as disturbances in the adipose metabolism of mice exposed to stress. Overall, these findings offer evidence indicating that the prominent effects of cordycepin in the brain and adipose tissues are dose dependent, thus highlight the importance of evaluating the precise therapeutic effects of different cordycepin doses on psycho-metabolic diseases.
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Affiliation(s)
- Xiaoyuan Jing
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Feng Hong
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Yinfang Xie
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yutong Xie
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Feng Shi
- Shenzhen Chenlu Biotechnology Co., Ltd, Shenzhen, China
| | - Ruoxi Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Liping Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zuxin Chen
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China; Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
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6
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Chu M, Deng J, Hu H, Wang R, Li D, Chen Z, Liu XA, Lu J. Nicotine transport across calu-3 cell monolayer: effect of nicotine salts and flavored e-liquids. Drug Dev Ind Pharm 2023; 49:628-636. [PMID: 37751149 DOI: 10.1080/03639045.2023.2263791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/21/2023] [Indexed: 09/27/2023]
Abstract
OBJECTIVE This study aimed to investigate the transport capability of nicotine across Calu-3 cell monolayer in various nicotine forms, including nicotine freebase, nicotine salts, and flavored e-liquids with nicotine benzoate. SIGNIFICANCE Nicotine is rapidly absorbed from the respiratory system into systemic circulation during e-cigarettes use. However, the mechanism of nicotine transport in the lung has not been well understood yet. This study may offer critical biological evidence and have implications for the use and regulation of e-cigarettes. METHODS The viability of Calu-3 cells after administration of nicotine freebase, nicotine salts and representative e-liquid were evaluated using the MTT assay, and the integrity of the Calu-3 cell monolayer was evaluated by transepithelial electrical resistance measurement and morphological analysis. Further, the nicotine transport capacity across the Calu-3 cell monolayer in various formulations of nicotine was investigated by analysis of nicotine transport amount. RESULTS The findings indicated that nicotine transport occurred passively and was time-dependent across the Calu-3cell monolayer. In addition, the nicotine transport was influenced by the type of nicotine salts and their respective pH value. The nicotine benzoate exhibited the highest apparent permeability coefficient (Papp), and higher nicotine-to-benzoic acid ratios led to higher Papp values. The addition of flavors to e-liquid resulted in increased Papp values, with the most significant increment being observed in tobacco-flavored e-liquid. CONCLUSIONS In summary, the transport capability of nicotine across the Calu-3 cell monolayer was influenced by the pH values of nicotine salts and flavor additives in e-liquids.
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Affiliation(s)
- Ming Chu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, P.R. China
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, P.R. China
| | - Jingjing Deng
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen, P.R. China
| | - Hao Hu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, P.R. China
| | - Ruoxi Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, P.R. China
| | - Ding Li
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, P.R. China
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen, P.R. China
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS); Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, P.R. China
- University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, P.R. China
- University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Jin Lu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, P.R. China
- Laboratory of Life and Health Sciences, Shenzhen Health Union Biotechnology Co., Ltd, Shenzhen, P.R. China
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7
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Chen Z, Liu XA, Kenny PJ. Central and peripheral actions of nicotine that influence blood glucose homeostasis and the development of diabetes. Pharmacol Res 2023; 194:106860. [PMID: 37482325 DOI: 10.1016/j.phrs.2023.106860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/06/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023]
Abstract
Cigarette smoking has long been recognized as a risk factor for type 2 diabetes (T2D), although the precise causal mechanisms underlying this relationship remain poorly understood. Recent evidence suggests that nicotine, the primary reinforcing component in tobacco, may play a pivotal role in connecting cigarette smoking and T2D. Extensive research conducted in both humans and animals has demonstrated that nicotine can elevate blood glucose levels, disrupt glucose homeostasis, and induce insulin resistance. The review aims to elucidate the genetic variants of nicotinic acetylcholine receptors associated with diabetes risk and provide a comprehensive overview of the available data on the mechanisms through which nicotine influences blood glucose homeostasis and the development of diabetes. Here we emphasize the central and peripheral actions of nicotine on the release of glucoregulatory hormones, as well as its effects on glucose tolerance and insulin sensitivity. Notably, the central actions of nicotine within the brain, which encompass both insulin-dependent and independent mechanisms, are highlighted as potential targets for intervention strategies in diabetes management.
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Affiliation(s)
- Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China.
| | - Paul J Kenny
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, USA.
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8
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Jia S, Guo X, Chen Z, Li S, Liu XA. The roles of the circadian hormone melatonin in drug addiction. Pharmacol Res 2022; 183:106371. [PMID: 35907435 DOI: 10.1016/j.phrs.2022.106371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/19/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
Abstract
Given the devastating social and health consequences of drug addiction and the limitations of current treatments, a new strategy is needed. Circadian system disruptions are frequently associated with drug addiction. Correcting abnormal circadian rhythms and improving sleep quality may thus be beneficial in the treatment of patients with drug addiction. Melatonin, an essential circadian hormone that modulates the biological clock, has anti-inflammatory, analgesic, anti-depressive, and neuroprotective effects via gut microbiota regulation and epigenetic modifications. It has attracted scientists' attention as a potential solution to drug abuse. This review summarized scientific evidence on the roles of melatonin in substance use disorders at the cellular, circuitry, and system levels, and discussed its potential applications as an intervention strategy for drug addiction.
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Affiliation(s)
- Shuhui Jia
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xuantong Guo
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
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9
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Chen Z, Fu L, Liu XA, Yang Z, Li W, Li F, Luo Q. Real-time effects of nicotine exposure and withdrawal on neurotransmitter metabolism of hippocampal neuronal cells by microfluidic chip-coupled LC-MS. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Chu M, Fu G, Deng J, Wang R, Fan Q, Chen Z, Lu J, Liu XA. Evaluation of the inhalation toxicity of arecoline benzoate aerosol in rats. J Appl Toxicol 2022; 42:1396-1410. [PMID: 35170056 DOI: 10.1002/jat.4303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/05/2022] [Accepted: 02/09/2022] [Indexed: 11/10/2022]
Abstract
Arecoline is a pharmacologically active alkaloid isolated from Areca catechu. There are no published data available regarding the inhalation toxicity of arecoline in animals. This study aimed to evaluate the inhalation toxicity of arecoline in vitro and in vivo. For this purpose, arecoline benzoate (ABA) salt was prepared to stabilize arecoline in an aerosol. The MTT assay determined the half-maximal inhibitory concentration values of ABA and arecoline in A549 cell proliferation to be 832 μg/ml and 412 μg/ml, respectively. The toxicity of acute and subacute inhalation in Sprague-Dawley rats was evaluated using the guidelines of the Organization for Economic Cooperation and Development. For acute inhalation, the median lethal concentration value of ABA solvent was >5175 mg/m3 . After the exposure and during the recovery period, no treatment-related clinical signs were observed. In the 28-Day inhalation toxicity test, daily nose-only exposure to 2510 mg/m3 aerosol of the ABA solvent contained 75 mg/m3 ABA for male rats and 375 mg/m3 ABA for female rats, which caused no observed adverse effects, except for the decreased body weight gain in male rats exposed to 375 mg/m3 ABA. In this study, the no observed adverse effect level (NOAEL) for the 28-Day repeated dose inhalation of ABA aerosol was calculated to be around 13 mg/kg/day for male rats and 68.8 mg/kg/day for female rats, respectively.
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Affiliation(s)
- Ming Chu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, China.,Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Guofeng Fu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, China.,Laboratory of Life Sciences, Shenzhen Icybetel Biotechnology Co, Ltd, Shenzhen, China
| | - Jingjing Deng
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, China
| | - Ruoxi Wang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
| | - Qiming Fan
- GuangdongZhongkeEnHealth Science and Technology Co., Ltd., Foshan, China
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, the Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS); Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jin Lu
- Laboratory of Life and Health Sciences, Shenzhen First Union Technology Co., Ltd, Shenzhen, China.,Laboratory of Life Sciences, Shenzhen Icybetel Biotechnology Co, Ltd, Shenzhen, China
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China; University of the Chinese Academy of Sciences, Beijing, China
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11
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Swarnkar S, Avchalumov Y, Espadas I, Grinman E, Liu XA, Raveendra BL, Zucca A, Mediouni S, Sadhu A, Valente S, Page D, Miller K, Puthanveettil SV. Molecular motor protein KIF5C mediates structural plasticity and long-term memory by constraining local translation. Cell Rep 2021; 36:109369. [PMID: 34260917 PMCID: PMC8319835 DOI: 10.1016/j.celrep.2021.109369] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 02/16/2021] [Accepted: 06/18/2021] [Indexed: 12/20/2022] Open
Abstract
Synaptic structural plasticity, key to long-term memory storage, requires translation of localized RNAs delivered by long-distance transport from the neuronal cell body. Mechanisms and regulation of this system remain elusive. Here, we explore the roles of KIF5C and KIF3A, two members of kinesin superfamily of molecular motors (Kifs), and find that loss of function of either kinesin decreases dendritic arborization and spine density whereas gain of function of KIF5C enhances it. KIF5C function is a rate-determining component of local translation and is associated with ∼650 RNAs, including EIF3G, a regulator of translation initiation, and plasticity-associated RNAs. Loss of function of KIF5C in dorsal hippocampal CA1 neurons constrains both spatial and contextual fear memory, whereas gain of function specifically enhances spatial memory and extinction of contextual fear. KIF5C-mediated long-distance transport of local translation substrates proves a key mechanism underlying structural plasticity and memory.
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Affiliation(s)
- Supriya Swarnkar
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Yosef Avchalumov
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Isabel Espadas
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Eddie Grinman
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Xin-An Liu
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Bindu L Raveendra
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Aya Zucca
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Sonia Mediouni
- Department of Immunology and Microbiology, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Abhishek Sadhu
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Susana Valente
- Department of Immunology and Microbiology, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Damon Page
- Department of Neuroscience, Scripps Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Kyle Miller
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
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12
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Liu XA, Fu LL, Zhai YF, Wang ZP. [An analysis of the status quo of ground-level ozone pollution research]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:123-129. [PMID: 33691367 DOI: 10.3760/cma.j.cn121094-20200114-00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the research status of ground-level ozone pollution, explore research trends and hot spots, and provide references for future research on air pollution. Methods: Papers on ground-level ozone pollution research published before December 31, 2019 had been retrieved in SCI-E database of the "Web of Science Core Collection" in January 2020. The retrieval strategies were set as follows: TS= ( ("Tropospheric Ozone" OR "Low Level Ozone" OR "Ground Level Ozone") AND ("Air pollution*" OR "Air quality") ) . The survey included 2084 articles. By using bibliometric research and visual analysis tools, the research status of global ground-level ozone pollution was revealed from the aspects of time, discipline, journal, financing, institution, country and key words. Results: Cumulative publications increased in a cubic function of y=0.05x(3)+0.80x(2)+0.74x+4.55 (R(2)=0.999, P<0.01) . The most studied subject was Environmental sciences ecology (1401 articles, 67.23%) . Atmospheric Environment was the journal with the most articles (332 articles, 15.93%) . The United States was the country with the most publications (44.67%, 931/2084) , while China ranked second (17.13%, 357/2084) . 80.39% (287/357) of Chinese papers had funding information. Among the top 10 research institutions, 7 and 2 were affiliated to the United States and China respectively. Source apportionment and human health were high frequency keywords that had appeared in the last 5 years. Conclusion: The research on ground-level ozone pollution is in a good period of development. The United States has a leading position in this area, and China has a good prospect in this field. Pollution source apportionment and human health effects are new research directions.
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Affiliation(s)
- X A Liu
- Department of Occupational and Environmental Health, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - L L Fu
- Department of Occupational and Environmental Health, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Y F Zhai
- Department of Occupational and Environmental Health, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Z P Wang
- Department of Occupational and Environmental Health, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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13
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Zeng Z, Xu L, Xie XY, Yan HL, Xie BJ, Xu WZ, Liu XA, Kang GJ, Jiang WL, Yuan JP. Pulmonary pathology of early-phase COVID-19 pneumonia in a patient with a benign lung lesion. Histopathology 2020; 77:823-831. [PMID: 32374419 PMCID: PMC7267508 DOI: 10.1111/his.14138] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/25/2022]
Abstract
Aims An ongoing outbreak of 2019 novel coronavirus (CoV) disease (COVID‐19), caused by severe acute respiratory syndrome (SARS) CoV‐2, has been spreading in multiple countries. One of the reasons for the rapid spread is that the virus can be transmitted from infected individuals without symptoms. Revealing the pathological features of early‐phase COVID‐19 pneumonia is important for understanding of its pathogenesis. The aim of this study was to explore the pulmonary pathology of early‐phase COVID‐19 pneumonia in a patient with a benign lung lesion. Methods and results We analysed the pathological changes in lung tissue from a 55‐year‐old female patient with early‐phase SARS‐CoV‐2 infection. In this case, right lower lobectomy was performed for a benign pulmonary nodule. Detailed clinical, laboratory and radiological data were also examined. This patient was confirmed to have preoperative SARS‐CoV‐2 infection by the use of real‐time reverse transcription polymerase chain reaction and RNA in‐situ hybridisation on surgically removed lung tissues. Histologically, COVID‐19 pneumonia was characterised by exudative inflammation. The closer to the visceral pleura, the more severe the exudation of monocytes and lymphocytes. Perivascular inflammatory infiltration, intra‐alveolar multinucleated giant cells, pneumocyte hyperplasia and intracytoplasmic viral‐like inclusion bodies were seen. However, fibrinous exudate and hyaline membrane formation, which were typical pulmonary features of SARS pneumonia, were not evident in this case. Immunohistochemical staining results showed an abnormal accumulation of CD4+ helper T lymphocytes and CD163+ M2 macrophages in the lung tissue. Conclusion The results highlighted the pulmonary pathological changes of early‐phase SARS‐CoV‐2 infection, and suggested a role of immune dysfunction in the pathogenesis of COVID‐19 pneumonia.
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Affiliation(s)
- Zhi Zeng
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Li Xu
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xiao-Yu Xie
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Hong-Lin Yan
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Bao-Jun Xie
- Department of Radiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Wan-Zhou Xu
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xin-An Liu
- Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institute, Shenzhen, China
| | - Gan-Jun Kang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Wan-Li Jiang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jing-Ping Yuan
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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14
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Liu XA, Xu YP, Guo CX, Liu YQ. [Investigation on the health status of workers exposed to benzene in one province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:231-234. [PMID: 32306703 DOI: 10.3760/cma.j.cn121094-20190409-00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the health status of occupational benzene exposure workers, and to provide a scientific basis for the development of reasonable health monitoring and effective protective measures. Methods: In March 2019, the occupational health surveillance data were collected including blood pressure, electrocardiogram, blood routine, urine routine, liver function, etc of 7810 benzene contact workers in 150 enterprises in Jiangxi Province in 2017, to analyze and assess their health status. Results: Among the 7810 benzene workers, there were 5451 males and 2359 females; the average age was (40.5±9.9) years; and the median benzene working age was 3.5 years. The detection rate of hypertension was 17.0% (734/4317) , the abnormal rate of urine routine was 15.7% (1227/7810) , the abnormal rate of liver function was 8.6% (356/4147) , and the abnormal rate of electrocardiogram was 12.3%(963/7810). The detection rates of low count number of leukocytes, platelets, neutrophils and occupational contraindications were 4.6%(360/7810) , 1.4%(108/7810) , 4.2%(330/7810) and 1.4%(110/7810) , respectively. The detection rates of low count number of leukocytes, platelets and neutrophils in female were all higher than those in male (P<0.05). The detection rates of low count number of platelets, neutropenia and occupational contraindications increased with age and working age (P<0.05 ). There were significant differences in the detection rates of low count number of leukocytes, platelets, neutrophils and occupational contraindications among benzene workers in different economic types (P<0.05) , and the highest among foreign companies, followed by private enterprise. There were statistically significant differences in the detection rates of low count number of platelets, neutrophils and occupational contraindications in benzene workers of different enterprise sizes (P<0.05) , and the highest was found in micro enterprises, followed by small enterprises. Conclusion: In 2017, the occupational health status of workers exposed to benzene in Jiangxi province is not optimistic. It is necessary to strengthen the occupational health supervision of small and micro-sized enterprises, foreign enterprises and private enterprises, take the initiative to improve health surveillance, and effectively protect the physical and mental health of workers.
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Affiliation(s)
- X A Liu
- Jiangxi Provincial Institute of Occupational Disease Prevention, Nanchang 330006, China
| | - Y P Xu
- Jiangxi Provincial Institute of Occupational Disease Prevention, Nanchang 330006, China
| | - C X Guo
- Jiangxi Provincial Institute of Occupational Disease Prevention, Nanchang 330006, China
| | - Y Q Liu
- Jiangxi Provincial Institute of Occupational Disease Prevention, Nanchang 330006, China
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15
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Badal KK, Akhmedov K, Lamoureux P, Liu XA, Reich A, Fallahi-Sichani M, Swarnkar S, Miller KE, Puthanveettil SV. Synapse Formation Activates a Transcriptional Program for Persistent Enhancement in the Bi-directional Transport of Mitochondria. Cell Rep 2020; 26:507-517.e3. [PMID: 30650345 DOI: 10.1016/j.celrep.2018.12.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 11/18/2018] [Accepted: 12/17/2018] [Indexed: 12/21/2022] Open
Abstract
Mechanisms that regulate the bi-directional transport of mitochondria in neurons for maintaining functional synaptic connections are poorly understood. Here, we show that in the pre-synaptic sensory neurons of the Aplysia gill withdrawal reflex, the formation of functional synapses leads to persistent enhancement in the flux of bi-directional mitochondrial transport. In the absence of a functional synapse, activation of cAMP signaling is sufficient to enhance bi-directional transport in sensory neurons. Furthermore, persistent enhancement in transport does not depend on NMDA and AMPA receptor signaling nor signaling from the post-synaptic neuronal cell body, but it is dependent on transcription and protein synthesis in the pre-synaptic neuron. We identified ∼4,000 differentially enriched transcripts in pre-synaptic neurons, suggesting a long-term change in the transcriptional program produced by synapse formation. These results provide insights into the regulation of bi-directional mitochondrial transport for synapse maintenance.
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Affiliation(s)
- Kerriann K Badal
- Department of Neuroscience, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA; Integrative Biology PhD Program, Charles E. Schmidt College of Science, Florida Atlantic University, Jupiter, FL 33458, USA
| | - Komol Akhmedov
- Department of Neuroscience, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Phillip Lamoureux
- Department of Integrative Biology, Michigan State University, East Lansing, MI 48824, USA
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Adrian Reich
- Bioinformatics Core, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Mohammad Fallahi-Sichani
- Bioinformatics Core, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Supriya Swarnkar
- Department of Neuroscience, The Scripps Research Institute-Florida, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Kyle E Miller
- Department of Integrative Biology, Michigan State University, East Lansing, MI 48824, USA
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16
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Abstract
Resource amendments commonly promote plant invasions, raising concerns over the potential consequences of nitrogen (N) deposition; however, it is unclear whether invaders will benefit from N deposition more than natives. Growth is among the most fundamental inherent traits of plants and thus good invaders may have superior growth advantages in response to resource amendments. We compared the growth and allocation between invasive and native plants in different N regimes including controls (ambient N concentrations). We found that invasive plants always grew much larger than native plants in varying N conditions, regardless of growth- or phylogeny-based analyses, and that the former allocated more biomass to shoots than the latter. Although N addition enhanced the growth of invasive plants, this enhancement did not increase with increasing N addition. Across invasive and native species, changes in shoot biomass allocation were positively correlated with changes in whole-plant biomass; and the slope of this relationship was greater in invasive plants than native plants. These findings suggest that enhanced shoot investment makes invasive plants retain a growth advantage in high N conditions relative to natives, and also highlight that future N deposition may increase the risks of plant invasions.
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Affiliation(s)
- X A Liu
- Ecological Resources and Landscape Research Institute, Chengdu University of Technology, Chengdu 610059, CHN, China
| | - Y Peng
- Ecological Resources and Landscape Research Institute, Chengdu University of Technology, Chengdu 610059, CHN, China
| | - J J Li
- Ecological Resources and Landscape Research Institute, Chengdu University of Technology, Chengdu 610059, CHN, China
| | - P H Peng
- Ecological Resources and Landscape Research Institute, Chengdu University of Technology, Chengdu 610059, CHN, China
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17
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Wang Y, Tian Q, Liu EJ, Zhao L, Song J, Liu XA, Ren QG, Jiang X, Zeng J, Yang YT, Wang JZ. Activation of GSK-3 disrupts cholinergic homoeostasis in nucleus basalis of Meynert and frontal cortex of rats. J Cell Mol Med 2017; 21:3515-3528. [PMID: 28656644 PMCID: PMC5706587 DOI: 10.1111/jcmm.13262] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/30/2017] [Indexed: 02/01/2023] Open
Abstract
The cholinergic impairment is an early marker in Alzheimer's disease (AD), while the mechanisms are not fully understood. We investigated here the effects of glycogen synthase kinse-3 (GSK-3) activation on the cholinergic homoeostasis in nucleus basalis of Meynert (NBM) and frontal cortex, the cholinergic enriched regions. We activated GSK-3 by lateral ventricular infusion of wortmannin (WT) and GF-109203X (GFX), the inhibitors of phosphoinositol-3 kinase (PI3-K) and protein kinase C (PKC), respectively, and significantly decreased the acetylcholine (ACh) level via inhibiting choline acetyl transferase (ChAT) rather than regulating acetylcholinesterase (AChE). Neuronal axonal transport was disrupted and ChAT accumulation occurred in NBM and frontal cortex accompanied with hyperphosphorylation of tau and neurofilaments. Moreover, ChAT expression decreased in NBM attributing to cleavage of nuclear factor-κB/p100 into p52 for translocation into nucleus to lower ChAT mRNA level. The cholinergic dysfunction could be mimicked by overexpression of GSK-3 and rescued by simultaneous administration of LiCl or SB216763, inhibitors of GSK-3. Our data reveal the molecular mechanism that may underlie the cholinergic impairments in AD patients.
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Affiliation(s)
- Yue Wang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Qing Tian
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - En-Jie Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Zhao
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Neurobiology, Capital Medical University, Beijing, China
| | - Jie Song
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin-An Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing-Guo Ren
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xia Jiang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Zeng
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu-Tao Yang
- Department of Neurobiology, Capital Medical University, Beijing, China
| | - Jian-Zhi Wang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, JS, China
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18
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Tuesta LM, Chen Z, Duncan A, Fowler CD, Ishikawa M, Lee BR, Liu XA, Lu Q, Cameron M, Hayes MR, Kamenecka TM, Pletcher M, Kenny PJ. GLP-1 acts on habenular avoidance circuits to control nicotine intake. Nat Neurosci 2017; 20:708-716. [PMID: 28368384 PMCID: PMC5541856 DOI: 10.1038/nn.4540] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/01/2017] [Indexed: 02/07/2023]
Abstract
Tobacco smokers titrate their nicotine intake to avoid its noxious effects, sensitivity to which may influence vulnerability to tobacco dependence, yet mechanisms of nicotine avoidance are poorly understood. Here we show that nicotine activates glucagon-like peptide-1 (GLP-1) neurons in the nucleus tractus solitarius (NTS). The antidiabetic drugs sitagliptin and exenatide, which inhibit GLP-1 breakdown and stimulate GLP-1 receptors, respectively, decreased nicotine intake in mice. Chemogenetic activation of GLP-1 neurons in NTS similarly decreased nicotine intake. Conversely, Glp1r knockout mice consumed greater quantities of nicotine than wild-type mice. Using optogenetic stimulation, we show that GLP-1 excites medial habenular (MHb) projections to the interpeduncular nucleus (IPN). Activation of GLP-1 receptors in the MHb-IPN circuit abolished nicotine reward and decreased nicotine intake, whereas their knockdown or pharmacological blockade increased intake. GLP-1 neurons may therefore serve as 'satiety sensors' for nicotine that stimulate habenular systems to promote nicotine avoidance before its aversive effects are encountered.
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Affiliation(s)
- Luis M Tuesta
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA.,The Kellogg School of Science and Technology, The Scripps Research Institute, Jupiter, Florida, USA
| | - Zuxin Chen
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Alexander Duncan
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Christie D Fowler
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
| | - Masago Ishikawa
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Brian R Lee
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
| | - Xin-An Liu
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Qun Lu
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
| | - Michael Cameron
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
| | - Matthew R Hayes
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Theodore M Kamenecka
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
| | - Matthew Pletcher
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA.,Autism Speaks, Boston, Massachusetts, USA
| | - Paul J Kenny
- Department of Molecular Therapeutics, The Scripps Research Institute Jupiter, Florida, USA
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19
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Rizzo V, Touzani K, Raveendra BL, Swarnkar S, Lora J, Kadakkuzha BM, Liu XA, Zhang C, Betel D, Stackman RW, Puthanveettil SV. Encoding of contextual fear memory requires de novo proteins in the prelimbic cortex. Biol Psychiatry Cogn Neurosci Neuroimaging 2017; 2:158-169. [PMID: 28503670 DOI: 10.1016/j.bpsc.2016.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Despite our understanding of the significance of the prefrontal cortex in the consolidation of long-term memories (LTM), its role in the encoding of LTM remains elusive. Here we investigated the role of new protein synthesis in the mouse medial prefrontal cortex (mPFC) in encoding contextual fear memory. METHODS Because a change in the association of mRNAs to polyribosomes is an indicator of new protein synthesis, we assessed the changes in polyribosome-associated mRNAs in the mPFC following contextual fear conditioning (CFC) in the mouse. Differential gene expression in mPFC was identified by polyribosome profiling (n = 18). The role of new protein synthesis in mPFC was determined by focal inhibition of protein synthesis (n = 131) and by intra-prelimbic cortex manipulation (n = 56) of Homer 3, a candidate identified from polyribosome profiling. RESULTS We identified several mRNAs that are differentially and temporally recruited to polyribosomes in the mPFC following CFC. Inhibition of protein synthesis in the prelimbic (PL), but not in the anterior cingulate cortex (ACC) region of the mPFC immediately after CFC disrupted encoding of contextual fear memory. Intriguingly, inhibition of new protein synthesis in the PL 6 hours after CFC did not impair encoding. Furthermore, expression of Homer 3, an mRNA enriched in polyribosomes following CFC, in the PL constrained encoding of contextual fear memory. CONCLUSIONS Our studies identify several molecular substrates of new protein synthesis in the mPFC and establish that encoding of contextual fear memories require new protein synthesis in PL subregion of mPFC.
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Affiliation(s)
- Valerio Rizzo
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Khalid Touzani
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Bindu L Raveendra
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Supriya Swarnkar
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Joan Lora
- Department of Psychology, Center for Complex Systems & Brain Sciences, College of Science, Florida Atlantic University, Jupiter, FL 33458
| | - Beena M Kadakkuzha
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida 130 Scripps Way, Jupiter, FL 33458
| | - Chao Zhang
- Department of Medicine and Institute for Computational Biomedicine, Weill Cornell Medical College, New York. NY10065. USA
| | - Doron Betel
- Department of Medicine and Institute for Computational Biomedicine, Weill Cornell Medical College, New York. NY10065. USA
| | - Robert W Stackman
- Department of Psychology, Center for Complex Systems & Brain Sciences, College of Science, Florida Atlantic University, Jupiter, FL 33458
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20
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Carletti F, Sardo P, Gambino G, Liu XA, Ferraro G, Rizzo V. Hippocampal Hyperexcitability is Modulated by Microtubule-Active Agent: Evidence from In Vivo and In Vitro Epilepsy Models in the Rat. Front Cell Neurosci 2016; 10:29. [PMID: 26903814 PMCID: PMC4746529 DOI: 10.3389/fncel.2016.00029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 01/29/2016] [Indexed: 11/13/2022] Open
Abstract
The involvement of microtubule dynamics on bioelectric activity of neurons and neurotransmission represents a fascinating target of research in the context of neural excitability. It has been reported that alteration of microtubule cytoskeleton can lead to profound modifications of neural functioning, with a putative impact on hyperexcitability phenomena. Altogether, in the present study we pointed at exploring the outcomes of modulating the degree of microtubule polymerization in two electrophysiological models of epileptiform activity in the rat hippocampus. To this aim, we used in vivo maximal dentate activation (MDA) and in vitro hippocampal epileptiform bursting activity (HEBA) paradigms to assess the effects of nocodazole (NOC) and paclitaxel (PAC), that respectively destabilize and stabilize microtubule structures. In particular, in the MDA paroxysmal discharge is electrically induced, whereas the HEBA is obtained by altering extracellular ionic concentrations. Our results provided evidence that NOC 10 μM was able to reduce the severity of MDA seizures, without inducing neurotoxicity as verified by the immunohistochemical assay. In some cases, paroxysmal discharge was completely blocked during the maximal effect of the drug. These data were also in agreement with the outcomes of in vitro HEBA, since NOC markedly decreased burst activity that was even silenced occasionally. In contrast, PAC at 10 μM did not exert a clear action in both paradigms. The present study, targeting cellular mechanisms not much considered so far, suggests the possibility that microtubule-active drugs could modulate brain hyperexcitability. This contributes to the hypothesis that cytoskeleton function may affect synaptic processes, relapsing on bioelectric aspects of epileptic activity.
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Affiliation(s)
- Fabio Carletti
- Department of "Experimental Biomedicine and Clinical Neuroscience" (Bio.Ne.C.), "Sezione di Fisiologia Umana G. Pagano", University of Palermo Palermo, Italy
| | - Pierangelo Sardo
- Department of "Experimental Biomedicine and Clinical Neuroscience" (Bio.Ne.C.), "Sezione di Fisiologia Umana G. Pagano", University of PalermoPalermo, Italy; Post-graduate School of Nutrition and Food Science, University of PalermoPalermo, Italy
| | - Giuditta Gambino
- Department of "Experimental Biomedicine and Clinical Neuroscience" (Bio.Ne.C.), "Sezione di Fisiologia Umana G. Pagano", University of Palermo Palermo, Italy
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Giuseppe Ferraro
- Department of "Experimental Biomedicine and Clinical Neuroscience" (Bio.Ne.C.), "Sezione di Fisiologia Umana G. Pagano", University of PalermoPalermo, Italy; Post-graduate School of Nutrition and Food Science, University of PalermoPalermo, Italy
| | - Valerio Rizzo
- Department of "Experimental Biomedicine and Clinical Neuroscience" (Bio.Ne.C.), "Sezione di Fisiologia Umana G. Pagano", University of PalermoPalermo, Italy; Department of Neuroscience, The Scripps Research InstituteJupiter, FL, USA
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21
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Abstract
There is growing recognition that fast mitochondrial transport in neurons is disrupted in multiple neurological diseases and psychiatric disorders. However, a major constraint in identifying novel therapeutics based on mitochondrial transport is that the large-scale analysis of fast transport is time consuming. Here we describe methodologies for the automated analysis of fast mitochondrial transport from data acquired using a robotic microscope. We focused on addressing questions of measurement precision, speed, reliably, workflow ease, statistical processing, and presentation. We used optical flow and particle tracking algorithms, implemented in ImageJ, to measure mitochondrial movement in primary cultured cortical and hippocampal neurons. With it, we are able to generate complete descriptions of movement profiles in an automated fashion of hundreds of thousands of mitochondria with a processing time of approximately one hour. We describe the calibration of the parameters of the tracking algorithms and demonstrate that they are capable of measuring the fast transport of a single mitochondrion. We then show that the methods are capable of reliably measuring the inhibition of fast mitochondria transport induced by the disruption of microtubules with the drug nocodazole in both hippocampal and cortical neurons. This work lays the foundation for future large-scale screens designed to identify compounds that modulate mitochondrial motility.
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Affiliation(s)
- Kyle E Miller
- Department of Integrative Biology, Michigan State University East Lansing, MI, USA
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute, Scripps Florida Jupiter, FL, USA
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22
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Kadakkuzha BM, Liu XA, McCrate J, Shankar G, Rizzo V, Afinogenova A, Young B, Fallahi M, Carvalloza AC, Raveendra B, Puthanveettil SV. Transcriptome analyses of adult mouse brain reveal enrichment of lncRNAs in specific brain regions and neuronal populations. Front Cell Neurosci 2015; 9:63. [PMID: 25798087 PMCID: PMC4351618 DOI: 10.3389/fncel.2015.00063] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 02/10/2015] [Indexed: 11/13/2022] Open
Abstract
Despite the importance of the long non-coding RNAs (lncRNAs) in regulating biological functions, the expression profiles of lncRNAs in the sub-regions of the mammalian brain and neuronal populations remain largely uncharacterized. By analyzing RNASeq datasets, we demonstrate region specific enrichment of populations of lncRNAs and mRNAs in the mouse hippocampus and pre-frontal cortex (PFC), the two major regions of the brain involved in memory storage and neuropsychiatric disorders. We identified 2759 lncRNAs and 17,859 mRNAs in the hippocampus and 2561 lncRNAs and 17,464 mRNAs expressed in the PFC. The lncRNAs identified correspond to ~14% of the transcriptome of the hippocampus and PFC and ~70% of the lncRNAs annotated in the mouse genome (NCBIM37) and are localized along the chromosomes as varying numbers of clusters. Importantly, we also found that a few of the tested lncRNA-mRNA pairs that share a genomic locus display specific co-expression in a region-specific manner. Furthermore, we find that sub-regions of the brain and specific neuronal populations have characteristic lncRNA expression signatures. These results reveal an unexpected complexity of the lncRNA expression in the mouse brain.
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Affiliation(s)
- Beena M Kadakkuzha
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Jennifer McCrate
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Gautam Shankar
- Informatics Core, The Scripps Research Institute Jupiter, FL, USA
| | - Valerio Rizzo
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Alina Afinogenova
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Brandon Young
- Genomics Core, The Scripps Research Institute Jupiter, FL, USA
| | - Mohammad Fallahi
- Informatics Core, The Scripps Research Institute Jupiter, FL, USA
| | | | - Bindu Raveendra
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
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23
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Kadakkuzha BM, Liu XA, Narvaez M, Kaye A, Akhmedov K, Puthanveettil SV. Asymmetric localization of natural antisense RNA of neuropeptide sensorin in Aplysia sensory neurons during aging and activity. Front Genet 2014; 5:84. [PMID: 24795747 PMCID: PMC4001032 DOI: 10.3389/fgene.2014.00084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 03/29/2014] [Indexed: 11/21/2022] Open
Abstract
Despite the advances in our understanding of transcriptome, regulation and function of its non-coding components continue to be poorly understood. Here we searched for natural antisense transcript for sensorin (NAT-SRN), a neuropeptide expressed in the presynaptic sensory neurons of gill-withdrawal reflex of the marine snail Aplysia californica. Sensorin (SRN) has a key role in learning and long-term memory storage in Aplysia. We have now identified NAT-SRN in the central nervous system (CNS) and have confirmed its expression by northern blotting and fluorescent RNA in situ hybridization. Quantitative analysis of NAT-SRN in micro-dissected cell bodies and processes of sensory neurons suggest that NAT-SRN is present in the distal neuronal processes along with sense transcripts. Importantly, aging is associated with reduction in levels of NAT-SRN in sensory neuron processes. Furthermore, we find that forskolin, an activator of CREB signaling, differentially alters the distribution of SRN and NAT-SRN. These studies reveal novel insights into physiological regulation of natural antisense RNAs.
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Affiliation(s)
- Beena M Kadakkuzha
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Xin-An Liu
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Maria Narvaez
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
| | - Alexandra Kaye
- Department of Neuroscience, The Scripps Research Institute Jupiter, FL, USA
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24
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Liu XA, Song J, Jiang Q, Wang Q, Tian Q, Wang JZ. Expression of the hyperphosphorylated tau attenuates ER stress-induced apoptosis with upregulation of unfolded protein response. Apoptosis 2012; 17:1039-49. [DOI: 10.1007/s10495-012-0744-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Liu XA, Liao K, Liu R, Wang HH, Zhang Y, Zhang Q, Wang Q, Li HL, Tian Q, Wang JZ. Tau dephosphorylation potentiates apoptosis by mechanisms involving a failed dephosphorylation/activation of Bcl-2. J Alzheimers Dis 2010; 19:953-62. [PMID: 20157251 DOI: 10.3233/jad-2010-1294] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Phosphorylation of tau, a major microtubule-associated protein, has been recently discovered to affect cell apoptosis. While the phosphorylation of tau is dynamically regulated, the role of tau dephosphorylation in cell viability is elusive. Here, we observed that the cells bearing high level of the dephosphorylated tau at Tau-1 epitope were more vulnerable to the apoptosis induced by staurosporine, camptothecin, and hydrogen peroxide, though the general outcome of tau expression was still anti-apoptotic. Further studies demonstrate that co-expression of tau and protein phosphatase 2A catalytic subunit (PP2Ac), the most active tau phosphatase, potentiates cell apoptosis with a correlatively increased dephosphorylation of tau and phosphorylation of Bcl-2 at Ser87 (pS87-Bcl2, the inactive form of the anti-apoptotic factor), whereas expression of PP2Ac alone in the absence of tau decreases the levels of pS87-Bcl2 and cleaved PARP, markers of early apoptosis. Finally, both tau and Bcl-2 were co-immunoprecipitated with PP2Ac, but the binding level of Bcl-2 with PP2Ac decreased prominently when tau was co-expressed. These data suggest that tau dephosphorylation by PP2Ac facilitates cell apoptosis with the mechanisms involving a failed dephosphorylation/activation of Bcl-2.
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Affiliation(s)
- Xin-An Liu
- Department of Pathophysiology, Huazhong University of Science and Technology, Wuhan, China
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26
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Liu XA, Zhang MF. [Behavior of evolution and growth of dominant algae in the Chongqing urban section along the Three-Gorges valley]. Huan Jing Ke Xue 2008; 29:1838-1843. [PMID: 18828363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Through sampling and analyzing algae species in natural water-body of the Yangtze river and the Jialing river located at Chongqing urban section along the Three-Gorges valley, and combining with monitoring on the influencing parameters to algae growth, such as TN/TP, light intensities and current velocities by experimental simulation, the effect on the algae propagation behavior has been studied systemically. The results show that under static hydrological condition with various TN/TP and light intensities the Chlorophyta and Cyanophyta would grow rapidly while the Bacillariophyta disappear quickly, and other algae species had little change, and the total algal cell density could exceed 10(7) cells/L. However, even if under lower current velocity as about 0.03 m/s, the total algae cell density would increase at most obviously while its density could only reach 10(6) cells/L, and the proportion of Bacillariophyta would increase with the increase of current velocity, the proportion of Chlorophyta and Cyanophyta begin decrease at same time. Apparently, evolution of the dominant algae species would take place according to the change of hydrological condition. The density of total algae is primal regressed to TN/TP and current velocities with coefficients of determination (R2) are all over 0.93 while it has lower regression coefficient with the light intensities. The samples analysis of the above two rivers under natural state also demonstrates that total algae density in the Jialing river is higher than that in the Yangtze river, and the Bacillariophyta has the absolute domination, and then are Cyanophyta and Chlorophyta, which fit in with the experimental results in our laboratory.
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Affiliation(s)
- Xin-An Liu
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
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Zhu LQ, Liu XA, Wang JZ. P2‐143: Estradiol attenuates tau hyperphosphorylation induced by upregulation of protein kinase‐A. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ling-Qiang Zhu
- Tongji Medical College of Huazhong University of Science and TechnologyWuhanChina
- Hubei Provincial Key Laboratory of Neurological DiseasesWuhanChina
| | - Xin-An Liu
- Tongji Medical College of Huazhong University of Science and TechnologyWuhanChina
| | - Jian-Zhi Wang
- Tongji Medical College of Huazhong University of Science and TechnologyWuhanChina
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Liu XA, Zhu LQ, Zhang Q, Shi HR, Wang SH, Wang Q, Wang JZ. Estradiol attenuates tau hyperphosphorylation induced by upregulation of protein kinase-A. Neurochem Res 2008; 33:1811-20. [PMID: 18338250 DOI: 10.1007/s11064-008-9638-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Accepted: 02/20/2008] [Indexed: 12/16/2022]
Abstract
Protein kinase A (PKA) plays a crucial role in tau hyperphosphorylation, an early event of Alzheimer disease (AD), and 17beta-estradiol replacement in aging women forestalls the onset of AD. However, the role of estradiol in PKA-induced tau hyperphosphorylation is not known. Here, we investigated the effect of 17beta-estradiol on cAMP/PKA activity and the PKA-induced tau hyperphosphorylation in HEK293 cells stably expressing tau441. We found that 17beta-estradiol effectively attenuated forskolin-induced overactivation of PKA and elevation of cAMP, and thus prevented tau from hyperphosphorylation. These data provide the first evidence that 17beta-estradiol can inhibit PKA overactivation and the PKA-induced tau hyperphosphorylation, implying a preventive role of 17beta-estradiol in AD-like tau pathology.
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Affiliation(s)
- Xin-An Liu
- Pathophysiology Department, Tongji Medical College, Hua-Zhong University of Science and Technology, Wuhan, 430030, PR China
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Liu XA, Zhan M, Luo YF, Guo SW. [Synergistic effects by P and N pollution to fluctuation behavior/bloom of algae along the Three-Gorges valley]. Huan Jing Ke Xue 2006; 27:1554-9. [PMID: 17111610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Absorption rate coefficient of algae omega(i) to nutrients such as N and P could be used for describing algal increases/decreases velocity in water areas in theory. omega(i) raise might correspond to algal quickly growth and to ccelerate absorption of N and P while omega(i) decrease might correspond to algal decompose and release of N and P. According to locale measuring data along the Three-Gorges valley and algal dynamics model of nutritious absorption we have obtained some interest 3-dimension figures in which omega(i) will varies up and down obviously with N and P concentration in special bound to show a synergistic effects of N and P that might reveal an inner behavior of algal bloom/decompose. The research results explain in reason: (1) algal blooms do will happen in one special P/N range in a certain water system; (2) when omega(1) and omega(2) ascend rapidly and simultaneously in positive direction at same time algae would bloom, and when omega(1) and omega(2) descend sharply and simultaneously in negative direction at same time algae would decompose; (3) The velocity of algal bloom is not only same approximately as one of algal decompose, but also its variety has evidently periodic fluctuation. All of these could reveal effectively mechanism of nutritious absorption/release as algal bloom/decompose.
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Affiliation(s)
- Xin-An Liu
- Chemical Engineering College, Chongqing University, Chongqing 400044, China.
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Liu XA, Zhan M, Ma YE. [Relationship between algal growth and nutritious materials absorbability in the Three-Gorges Valley]. Huan Jing Ke Xue 2005; 26:95-9. [PMID: 16212175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
According to measuring data of various relative pollution materials such as various nitrides, phosphides and chlorophyll along the Three-Gorges valley, and with introducing a special controlling function of new strong nonlinear coupling dynamics model, in which could used to describe complex behavior and process of green algal bloom to exist in slow flow, we studied algal growth mechanism and found some strong interactions and inherence rules when N and P concentration absorbated by algae body varied with the different N and P concentration in the valley. The ratio factor (wi/cx) of the nutritious absorption coefficient of algae wi to nutritious material concentration cx not only reveals the influence relation about nutrition content absorbated by the algae at different algal concentrations, but also characterizes the some correlations between algal growth and various effects of different nutritious materials absorbated by the algae.
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Affiliation(s)
- Xin-An Liu
- College of Chemical Engineering, Chongqing University, Chongqing 400044, China.
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Liu XA, Wu WK. [Researches on prevention and treatment of reperfusion injury in cerebral ischemia by Chinese herbal medicine]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:794-6. [PMID: 12575615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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Liu XA, Jiang MC, Huang PB, Zou T. [Role of afferent C fibers in electroacupuncture of "zusanli" point in activating nucleus raphe magnus]. Sheng Li Xue Bao 1990; 42:523-33. [PMID: 2293364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The purpose of the present work is to study whether the analgesia of "Zusanli" EA was mainly produced by its noxious effect. The antidromic C waves on N. peroneus communis innervating the area of "Zusanli" point were recorded. When "Zusanli" point was stimulated by trains of stimuli, the amplitude of the antidromic C wave was obviously decreased due to collision with the orthodromic stimulation. It was suggested that EA of "Zusanli" could excite some C fibers. It was observed that when the stimulation intensity reached the threshold of C fiber, the NRM neurons were obviously activated, and when it reached or exceeded the intensity for producing the maximal C wave, the NRM neurons were highly activated. Therefore, EA analgesia is probably produced mainly by its noxious stimulus component, especially carried by C fibers, via a negative feedback mechanism in modulating pain.
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Affiliation(s)
- X A Liu
- Institute of Acupuncture and Moxibustion, China Academy of Traditional Chinese Medicine, Beijing
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Cheng LS, Liu XA. [Effect of lipid peroxidation on hypocrellin A-photosensitized cross-linking of membrane protein]. Shi Yan Sheng Wu Xue Bao 1987; 20:373-80. [PMID: 3425096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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