1
|
Yang Y, Du T, Yu W, Zhou Y, Yang C, Kuang D, Wang J, Tang C, Wang H, Zhao Y, Yang H, Huang Q, Wu D, Li B, Sun Q, Liu H, Lu S, Peng X. Single-cell transcriptomic atlas of distinct early immune responses induced by SARS-CoV-2 Proto or its variants in rhesus monkey. MedComm (Beijing) 2023; 4:e432. [PMID: 38020713 PMCID: PMC10661830 DOI: 10.1002/mco2.432] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Immune responses induced by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection play a critical role in the pathogenesis and outcome of coronavirus disease 2019 (COVID-19). However, the dynamic profile of immune responses postinfection by SARS-CoV-2 variants of concern (VOC) is not fully understood. In this study, peripheral blood mononuclear cells single-cell sequencing was performed to determine dynamic profiles of immune response to Prototype, Alpha, Beta, and Delta in a rhesus monkey model. Overall, all strains induced dramatic changes in both cellular subpopulations and gene expression levels at 1 day postinfection (dpi), which associated function including adaptive immune response, innate immunity, and IFN response. COVID-19-related genes revealed different gene profiles at 1 dpi among the four SARS-CoV-2 strains, including genes reported in COVID-19 patients with increased risk of autoimmune disease and rheumatic diseases. Delta-infected animal showed inhibition of translation pathway. B cells, T cells, and monocytes showed much commonality rather than specificity among the four strains. Monocytes were the major responders to SARS-CoV-2 infection, and the response lasted longer in Alpha than the other strains. Thus, this study reveals the early immune responses induced by SARS-CoV-2 Proto or its variants in nonhuman primates, which is important information for controlling rapidly evolving viruses.
Collapse
Affiliation(s)
- Yun Yang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Tingfu Du
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Wenhai Yu
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Yanan Zhou
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Chengyun Yang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Dexuan Kuang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Junbin Wang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Cong Tang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Haixuan Wang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Yuan Zhao
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Hao Yang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Qing Huang
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Daoju Wu
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Bai Li
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
| | - Qiangming Sun
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
- Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College)Ministry of EducationBeijingChina
| | - Hongqi Liu
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
- Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College)Ministry of EducationBeijingChina
| | - Shuaiyao Lu
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
- Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College)Ministry of EducationBeijingChina
| | - Xiaozhong Peng
- National Kunming High‐level Biosafety Primate Research Center, Institute of Medical BiologyChinese Academy of Medical Sciences and Peking Union Medical SchoolKunmingChina
- Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College)Ministry of EducationBeijingChina
- State Key Laboratory of Medical Molecular BiologyDepartment of Molecular Biology and BiochemistryInstitute of Basic Medical SciencesMedical Primate Research CenterNeuroscience CenterChinese Academy of Medical SciencesSchool of Basic MedicinePeking Union Medical CollegeBeijingChina
| |
Collapse
|
2
|
Pan Y, Zong Q, Li G, Wu Z, Du T, Zhang Y, Huang Z, Ma K. Nuclear localization of alpha-synuclein induces anxiety-like behavior in mice by decreasing hippocampal neurogenesis and pathologically affecting amygdala circuits. Neurosci Lett 2023; 816:137490. [PMID: 37742940 DOI: 10.1016/j.neulet.2023.137490] [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: 05/30/2023] [Revised: 08/29/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
Fear and anxiety are common in Parkinson's disease (PD) and may be caused by pathologies outside the dopaminergic system. Increasing evidence has shown that alpha-synuclein (α-syn) is involved in the development of anxiety in PD. In this study, we examined the effects of α-syn nuclear translocation on anxiety-like behavior in mice by overexpressing α-syn in the nuclei of the cell in the hippocampus. Our results show that α-syn overexpression in the nuclei increased the excitability of hippocampal neurons and activated NG2 glial cells and promoted the synthesis and release of γ-aminobutyric acid (GABA). And nuclear localization of α-syn led to the loss of neurotrophic factors and decreased neurogenesis. Meanwhile, the hippocampus and amygdala acted synergistically, resulting in pathologic accumulation of α-syn and gliosis in the amygdala and caused loss of interneurons. These events led to the impairments of hippocampus and amygdala function, which ultimately induced anxiety-like behavior in mice. The findings obtained in our present study indicate that excessive nuclear translocation of α-syn in hippocampal neurons and damage to the amygdala circuits may be important in the development of anxiety in PD.
Collapse
Affiliation(s)
- Yue Pan
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Qinglan Zong
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Guoxiang Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Zhengcun Wu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Ying Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| | - Zhangqiong Huang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| |
Collapse
|
3
|
Du T, Gao C, Lu S, Liu Q, Yang Y, Yu W, Li W, Qiao Sun Y, Tang C, Wang J, Gao J, Zhang Y, Luo F, Yang Y, Yang YG, Peng X. Differential Transcriptomic Landscapes of SARS-CoV-2 Variants in Multiple Organs from Infected Rhesus Macaques. Genomics Proteomics Bioinformatics 2023; 21:1014-1029. [PMID: 37451436 PMCID: PMC10928377 DOI: 10.1016/j.gpb.2023.06.002] [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: 01/25/2023] [Revised: 04/27/2023] [Accepted: 06/04/2023] [Indexed: 07/18/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the persistent coronavirus disease 2019 (COVID-19) pandemic, which has resulted in millions of deaths worldwide and brought an enormous public health and global economic burden. The recurring global wave of infections has been exacerbated by growing variants of SARS-CoV-2. In this study, the virological characteristics of the original SARS-CoV-2 strain and its variants of concern (VOCs; including Alpha, Beta, and Delta) in vitro, as well as differential transcriptomic landscapes in multiple organs (lung, right ventricle, blood, cerebral cortex, and cerebellum) from the infected rhesus macaques, were elucidated. The original strain of SARS-CoV-2 caused a stronger innate immune response in host cells, and its VOCs markedly increased the levels of subgenomic RNAs, such as N, Orf9b, Orf6, and Orf7ab, which are known as the innate immune antagonists and the inhibitors of antiviral factors. Intriguingly, the original SARS-CoV-2 strain and Alpha variant induced larger alteration of RNA abundance in tissues of rhesus monkeys than Beta and Delta variants did. Moreover, a hyperinflammatory state and active immune response were shown in the right ventricles of rhesus monkeys by the up-regulation of inflammation- and immune-related RNAs. Furthermore, peripheral blood may mediate signaling transmission among tissues to coordinate the molecular changes in the infected individuals. Collectively, these data provide insights into the pathogenesis of COVID-19 at the early stage of infection by the original SARS-CoV-2 strain and its VOCs.
Collapse
Affiliation(s)
- Tingfu Du
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China; State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Chunchun Gao
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuaiyao Lu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Qianlan Liu
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yun Yang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Wenhai Yu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Wenjie Li
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
| | - Yong Qiao Sun
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
| | - Cong Tang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Junbin Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Jiahong Gao
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Yong Zhang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Fangyu Luo
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
| | - Ying Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.
| | - Yun-Gui Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.
| | - Xiaozhong Peng
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China; State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China; Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
| |
Collapse
|
4
|
Shi J, Du T, Wang J, Tang C, Lei M, Yu W, Yang Y, Ma Y, Huang P, Chen H, Wang X, Sun J, Wang H, Zhang Y, Luo F, Huang Q, Li B, Lu S, Hu Y, Peng X. Aryl hydrocarbon receptor is a proviral host factor and a candidate pan-SARS-CoV-2 therapeutic target. Sci Adv 2023; 9:eadf0211. [PMID: 37256962 PMCID: PMC10413656 DOI: 10.1126/sciadv.adf0211] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023]
Abstract
The emergence of a series of SARS-CoV-2 variants has necessitated the search for broad-spectrum antiviral targets. The aryl hydrocarbon receptor (AhR) senses tryptophan metabolites and is an immune regulator. However, the role of AhR in SARS-CoV-2 infection and whether AhR can be used as the target of antiviral therapy against SARS-CoV-2 and its variants are yet unclear. Here, we show that infection with SARS-CoV-2 activates AhR signaling and facilitates viral replication by interfering with IFN-I-driven antiviral immunity and up-regulating ACE2 receptor expression. The pharmacological AhR blockade or AhR knockout reduces SARS-CoV-2 and its variants' replication in vitro. Drug targeting of AhR with AhR antagonists markedly reduced SARS-CoV-2 and its variants' replication in vivo and ameliorated lung inflammation caused by SARS-CoV-2 infection in hamsters. Overall, AhR was a SARS-CoV-2 proviral host factor and a candidate host-directed broad-spectrum target for antiviral therapy against SARS-CoV-2 and its variants, including Delta and Omicron, and potentially other variants in the future.
Collapse
Affiliation(s)
- Jiandong Shi
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tingfu Du
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junbin Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Cong Tang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mengyue Lei
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenhai Yu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yun Yang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ying Ma
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pu Huang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongli Chen
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Sun
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haixuan Wang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong Zhang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fangyu Luo
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Huang
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bai Li
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuaiyao Lu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yunzhang Hu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaozhong Peng
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing China
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing China
| |
Collapse
|
5
|
Chen T, Yang H, Liu P, Hamiti M, Zhang X, Xu Y, Quan W, Zhang Y, Yu W, Jiao L, Du T, Xi J, Yin B, Zhou W, Lu S, Peng X. Splicing factor SF3B3, a NS5-binding protein, restricts ZIKV infection by targeting GCH1. Virol Sin 2022; 38:222-232. [PMID: 36572150 PMCID: PMC10176263 DOI: 10.1016/j.virs.2022.12.005] [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: 08/16/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Zika virus (ZIKV), a positive-sense single-stranded RNA virus, causes congenital ZIKV syndrome in children and Guillain-Barré Syndrome (GBS) in adults. ZIKV expresses nonstructural protein 5 (NS5), a large protein that is essential for viral replication. ZIKV NS5 confers the ability to evade interferon (IFN) signalling; however, the exact mechanism remains unclear. In this study, we employed affinity pull-down and liquid chromatography-tandem mass spectrometry (LC-MS/MS) analyses and found that splicing factor 3b subunit 3 (SF3B3) is associated with the NS5-Flag pull-down complex through interaction with NS5. Functional assays showed that SF3B3 overexpression inhibited ZIKV replication by promoting IFN-stimulated gene (ISG) expression whereas silencing of SF3B3 inhibited expression of ISGs to promote ZIKV replication. GTP cyclohydrolase I (GCH1) is the first and rate-limiting enzyme in tetrahydrobiopterin (BH4) biosynthesis. NS5 upregulates the expression of GCH1 during ZIKV infection. And GCH1 marginally promoted ZIKV replication via the IFN pathway. Additionally, GCH1 expression is related to the regulation of SF3B3. Overexpression of the SF3B3 protein effectively reduced GCH1 protein levels, whereas SF3B3 knockdown increased its levels. These findings indicated that ZIKV NS5 binding protein SF3B3 contributed to the host immune response against ZIKV replication by modulating the expression of GCH1.
Collapse
Affiliation(s)
- Tanxiu Chen
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China; Department of Science and Education, Jiangxi Key Laboratory of Translational Cancer Research, Jiangxi Cancer Hospital, Nanchang, 330029, China
| | - Hao Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Penghui Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Moliduer Hamiti
- The State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xintian Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Yi Xu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Wenqi Quan
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Yong Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Wenhai Yu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Li Jiao
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Juemin Xi
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China
| | - Bin Yin
- The State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Wei Zhou
- Department of Science and Education, Jiangxi Key Laboratory of Translational Cancer Research, Jiangxi Cancer Hospital, Nanchang, 330029, China
| | - Shuaiyao Lu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China.
| | - Xiaozhong Peng
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650031, China; The State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
| |
Collapse
|
6
|
Pan Y, Zong Q, Li G, Wu Z, Du T, Huang Z, Zhang Y, Ma K. Nuclear localization of alpha-synuclein affects the cognitive and motor behavior of mice by inducing DNA damage and abnormal cell cycle of hippocampal neurons. Front Mol Neurosci 2022; 15:1015881. [PMID: 36438187 PMCID: PMC9684191 DOI: 10.3389/fnmol.2022.1015881] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 08/10/2022] [Accepted: 10/24/2022] [Indexed: 01/21/2024] Open
Abstract
Nuclear accumulation of alpha-synuclein (α-syn) in neurons can promote neurotoxicity, which is considered the key factor in the pathogenesis of synucleinopathy. The damage to hippocampus neurons driven by α-syn pathology is also the potential cause of memory impairment in Parkinson's disease (PD) patients. In this study, we examined the role of α-syn nuclear translocation in the cognition and motor ability of mice by overexpressing α-syn in cell nuclei in the hippocampus. The results showed that the overexpression of α-syn in nuclei was able to cause significant pathological accumulation of α-syn in the hippocampus, and quickly lead to memory and motor impairments in mice. It might be that nuclear overexpression of α-syn may cause DNA damage of hippocampal neurons, thereby leading to activation and abnormal blocking of cell cycle, and further inducing apoptosis of hippocampal neurons and inflammatory reaction. Meanwhile, the inflammatory reaction further aggravated DNA damage and formed a vicious circle. Therefore, the excessive nuclear translocation of α-syn in hippocampal neurons may be one of the main reasons for cognitive decline in mice.
Collapse
Affiliation(s)
| | | | | | | | | | - Zhangqiong Huang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Ying Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| |
Collapse
|
7
|
Huang Z, Li Y, Yi H, Wu Z, Li C, Du T, Yang J, Wang Y, Jiang Q, Fan S, Liao Y, Zhang Y, Jiang G, Ma K, Li Q. Absence of active systemic anaphylaxis in guinea pigs upon intramuscular injection of inactivated SARS-CoV-2 vaccine (Vero cells). Immunopharmacol Immunotoxicol 2022; 44:633-640. [PMID: 35506627 DOI: 10.1080/08923973.2022.2073889] [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: 09/03/2021] [Accepted: 04/29/2022] [Indexed: 11/05/2022]
Abstract
Background: The safety of novel vaccines against COVID-19 is currently a major focus of preclinical research. As a part of the safety evaluation testing package, 24 healthy guinea pigs were used to determine whether repeated administration of inactivated SARS-CoV-2 vaccine could induce active systemic anaphylaxis (ASA), and to evaluate its degree of severity.Method: According to sex and body weight, the animals were randomly divided into three experimental groups (eight animals per group). The negative control group received 0.9% sodium chloride (priming dose: 0.5 mL/animal; challenge dose: 1 mL/animal); the positive control group received 10% ovalbumin (priming dose: 0.5 mL/animal; challenge dose: 1 mL/animal); and the inactivated SARS-CoV-2 vaccine group received inactivated SARS-CoV-2 vaccines (priming dose: 100 U in 0.5 mL/animal; challenge dose: 200 U in 1 mL/animal). Priming dose administration was conducted by multi-point injection into the muscles of the hind limbs, three times, once every other day. On days 14 and 21 after the final priming injection, a challenge test was conducted. Half of the animals in each group were injected intravenously with twice the dose and volume of the tested substance used for immunization. During the experimental course, the injection site, general clinical symptoms, body weight, and systemic allergic reaction symptoms were monitored.Result: After intramuscular injection of inactivated SARS-CoV-2 vaccine, there were no abnormal reactions at the injection site, clinical symptoms, or deaths. There was no difference in body weight between the groups, and there were no allergic reactions. Conclusion: Thus, inactivated SARS-CoV-2 vaccine injected intramuscularly in guinea pigs did not produce ASA and had a good safety profile, which can provide actual data on vaccine risks and important reference data for clinical research on this vaccine.
Collapse
Affiliation(s)
- Zhangqiong Huang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Yun Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Hongkun Yi
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Zhengcun Wu
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Cong Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Jinling Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Yixuan Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Qinfang Jiang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Shengtao Fan
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Yun Liao
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Ying Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Guorun Jiang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
- Neuroscience Center, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| | - Qihan Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| |
Collapse
|
8
|
Yang H, Liu P, Zhang Y, Du T, Zhou Y, Lu S, Peng X. Characteristic analysis of Omicron‐included SARS‐CoV‐2 variants of concern. MedComm (Beijing) 2022; 3:e129. [PMID: 35434714 PMCID: PMC8994548 DOI: 10.1002/mco2.129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/13/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/19/2022] Open
Abstract
In view of the rapid development of the COVID‐19 pandemic and SARS‐CoV‐2 mutation, we characterized the emerging SARS‐CoV‐2 variants of concern (VOCs) by both bioinformatics methods and experiments. The representative genomic sequences of SARS‐CoV‐2 VOCs were first downloaded from NCBI, including the prototypic strain, Alpha (B.1.1.7) strain, Beta (B.1.351) strain, Delta (B.1.617.2), and Omicron (B1.1.529) strain. Bioinformatics analysis revealed that the D614G mutation led to formation of a protruding spike (S) in the tertiary structure of spike protein, which could be responsible for the enhanced binding to angiotensin‐converting enzyme 2 (ACE2) receptor. The epitope analysis further showed that the S protein antigenicity of the Omicron variant changed dramatically, which was possibly associated with its enhanced ability of immune escape. To verify the bioinformatics results, we performed experiments of pseudovirus infection and protein affinity assay. Notably, we found that the spike protein of Omicron variant showed the weakest infectivity and binding ability among all tested strains. Finally, we also proved this through virus infection experiments, and found that the cytotoxicity of Omicron seems to be not strong enough. The results in this study provide guidelines for prevention and control of COVID‐19.
Collapse
Affiliation(s)
- Hao Yang
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Penghui Liu
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Yong Zhang
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Tingfu Du
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Yanan Zhou
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Shuaiyao Lu
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
| | - Xiaozhong Peng
- Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan China
- State Key Laboratory of Medical Molecular Biology Department of Molecular Biology and Biochemistry Institute of Basic Medical Sciences Medical Primate Research Center Neuroscience Center Chinese Academy of Medical Sciences School of Basic Medicine Peking Union Medical College Beijing China
| |
Collapse
|
9
|
Wan D, Du T, Hong W, Chen L, Que H, Lu S, Peng X. Neurological complications and infection mechanism of SARS-COV-2. Signal Transduct Target Ther 2021; 6:406. [PMID: 34815399 PMCID: PMC8609271 DOI: 10.1038/s41392-021-00818-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/27/2021] [Accepted: 11/02/2021] [Indexed: 02/05/2023] Open
Abstract
Currently, SARS-CoV-2 has caused a global pandemic and threatened many lives. Although SARS-CoV-2 mainly causes respiratory diseases, growing data indicate that SARS-CoV-2 can also invade the central nervous system (CNS) and peripheral nervous system (PNS) causing multiple neurological diseases, such as encephalitis, encephalopathy, Guillain-Barré syndrome, meningitis, and skeletal muscular symptoms. Despite the increasing incidences of clinical neurological complications of SARS-CoV-2, the precise neuroinvasion mechanisms of SARS-CoV-2 have not been fully established. In this review, we primarily describe the clinical neurological complications associated with SARS-CoV-2 and discuss the potential mechanisms through which SARS-CoV-2 invades the brain based on the current evidence. Finally, we summarize the experimental models were used to study SARS-CoV-2 neuroinvasion. These data form the basis for studies on the significance of SARS-CoV-2 infection in the brain.
Collapse
Affiliation(s)
- Dandan Wan
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatricts, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, 610041, Chengdu, Sichuan, PR China
| | - Tingfu Du
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan, China
| | - Weiqi Hong
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatricts, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, 610041, Chengdu, Sichuan, PR China
| | - Li Chen
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatricts, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, 610041, Chengdu, Sichuan, PR China
| | - Haiying Que
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatricts, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, 610041, Chengdu, Sichuan, PR China
| | - Shuaiyao Lu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan, China.
| | - Xiaozhong Peng
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan, China.
- State Key Laboratory of Medical Molecular Biology, Department of Molecular, Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China.
| |
Collapse
|
10
|
Teng YQ, Du T, Tian R, Liu ZY, Zhang SY. [Genetics of coronary artery disease: research progress and prospect of clinical translation]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:733-738. [PMID: 34256445 DOI: 10.3760/cma.j.cn112148-20210331-00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Q Teng
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - T Du
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - R Tian
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Z Y Liu
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - S Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| |
Collapse
|
11
|
Du T, Li G, Luo H, Pan Y, Xu Q, Ma K. Hippocampal alpha-synuclein mediates depressive-like behaviors. Brain Behav Immun 2021; 95:226-237. [PMID: 33775831 DOI: 10.1016/j.bbi.2021.03.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 12/30/2020] [Revised: 02/28/2021] [Accepted: 03/22/2021] [Indexed: 02/08/2023] Open
Abstract
Alpha-synuclein (α-syn) which encoded by SNCA plays a critical role in the neurotransmission, vesicle dynamics, and neuroplasticity. Alteration to SNCA expression is associated with major depressive disorder. However, the pathogenic mechanism of SNCA in depression remains unknown. Herein, we reported that SNCA was up-regulated in the peripheral blood of major depressive disorder (MDD) patients and the depressive mice. Chronic restraint stress (CRS) also up-regulated the SNCA expression in the hippocampus. Moreover, over-expression of SNCA in the hippocampus triggered spontaneous depressive-like behaviors under the non-stressed conditions in mice, and knockout of SNCA could reverse CRS-induced depressive-like behaviors. SNCA led to synapse loss and neuronal cell death in the hippocampus possibly via complement-mediated microglial engulfment and inflammation, and thus contributed to the pathogenesis of depressive disorder. Overall, hippocampal SNCA and complement system are involved in the pathogenesis of depressive disorder and it provides a new perspective for the occurrence of depressive disorder.
Collapse
Affiliation(s)
- Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China; Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.
| | - Guoxiang Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| | - Haiyu Luo
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| | - Yue Pan
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.
| | - Qi Xu
- Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China; Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing 100005 China.
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China; Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China.
| |
Collapse
|
12
|
Xie Y, Mi L, Zheng W, Ping L, Lin N, Tu M, Zhang C, Ying Z, Liu W, Deng L, W M, Du T, Tang Y, Wang X, Zhu J, Song Y. CAMRELIZUMAB COMBINED WITH GEMOX IN PATIENTS WITH RELAPSED OR REFRACTORY HODGKIN LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.104_2880] [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: 11/12/2022]
Affiliation(s)
- Y. Xie
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - L. Mi
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - W. Zheng
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - L. Ping
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - N. Lin
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - M. Tu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - C. Zhang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - Z. Ying
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - W. Liu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - L. Deng
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - M. W
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - T. Du
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - Y. Tang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - X. Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - J. Zhu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| | - Y. Song
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) Peking University Cancer Hospital & Institute Department of lymphoma beijing China
| |
Collapse
|
13
|
Huang Z, Jiang Q, Wang Y, Yang J, Du T, Yi H, Li C, Li Y, Wu Z, Fan S, Liao Y, Zhang Y, Wang L, Jiang G, Tang D, Ye Y, Wang C, Li Z, Li Z, Zhang C, Ma K, Li Q. SARS-CoV-2 inactivated vaccine (Vero cells) shows good safety in repeated administration toxicity test of Sprague Dawley rats. Food Chem Toxicol 2021; 152:112239. [PMID: 33901607 PMCID: PMC8064818 DOI: 10.1016/j.fct.2021.112239] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/02/2021] [Accepted: 04/17/2021] [Indexed: 01/08/2023]
Abstract
The outbreak of COVID-19 has posed a serious threat to global public health. Vaccination may be the most effective way to prevent and control the spread of the virus. The safety of vaccines is the focus of preclinical research, and the repeated dose toxicity test is the key safety test to evaluate the vaccine before clinical trials. The purpose of this study was (i) to observe the toxicity and severity of an inactivated SARS-CoV-2 vaccine (Vero cells) in rodent Sprague Dawley rats after multiple intramuscular injections under the premise of Good Laboratory Practice principles and (ii) to provide a basis for the formulation of a clinical trial scheme. The results showed that all animals in the experimental group were in good condition, no regular changes related to the vaccine were found in the detection of various toxicological indexes, and no noticeable stimulating reaction related to the vaccine was found in the injected local tissues. The neutralizing antibodies in the low- and high-dose vaccine groups began to appear 14 days after the last administration. In the negative control group, no neutralizing antibodies were observed from the administration period to the recovery period. Therefore, the repeated administration toxicity test of the inactivated SARS-CoV-2 vaccine (Vero cells) in Sprague Dawley rats showed no obvious toxic reaction. It was preliminarily confirmed that the vaccine can stimulate production of neutralizing antibodies and is safe in Sprague Dawley rats.
Collapse
Affiliation(s)
- Zhangqiong Huang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Qinfang Jiang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Yixuan Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Jinling Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Hongkun Yi
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Cong Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Yun Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Zhengcun Wu
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Shengtao Fan
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Yun Liao
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Ying Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Lichun Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Guorun Jiang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Donghong Tang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Yousong Ye
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Chenyun Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Zheli Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Zhisai Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Caixing Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China; Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China; Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, 650118, China.
| | - Qihan Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China; Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, 650118, China.
| |
Collapse
|
14
|
Teng YQ, Du T, Tian R, Zhang ZY, Liu ZY, Zhang SY. [Inherited premature coronary artery disease: classification and research progress]. Zhonghua Nei Ke Za Zhi 2021; 60:578-584. [PMID: 34058819 DOI: 10.3760/cma.j.cn112138-20200612-00582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Q Teng
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - T Du
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - R Tian
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Y Liu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| |
Collapse
|
15
|
Du T, Li G, Yang J, Ma K. RNA demethylase Alkbh5 is widely expressed in neurons and decreased during brain development. Brain Res Bull 2020; 163:150-159. [PMID: 32717204 DOI: 10.1016/j.brainresbull.2020.07.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 06/04/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022]
Abstract
N6-methyladenosine (m6A) RNA methylation is one of the most abundant internal modifications on mRNAs and highly enriched within the brain. The demethylation of m6A is regulated by demethylases including fat-mass and obesity-associated protein (FTO) and AlkB homolog 5 (Alkbh5). FTO has been shown to play an important role in the brain, but little is known about the expression pattern and role of Alkbh5. Here, we investigated the expression profile of Alkbh5 in the developing mouse brain and its localization in the adult mouse brain. The results showed that Alkbh5 was widely detected throughout the mouse brain, with relatively high levels observed in the cerebellum and olfactory bulb of the adult mouse brain. Furthermore, Alkbh5 is mainly co-localized with neuronal marker NeuN, suggesting that it is primarily expressed in the neurons. Specifically, Alkbh5 could be found primarily in the nucleus of mouse neurons and cell lines. In addition, Alkbh5 protein decreased dramatically during brain development. Our findings detail the expression pattern and subcellular localization of Alkbh5 in the mouse brain. These results provide a neurobiological basis for the participation of Alkbh5 in the regulation of various brain functions, which might shed new light on further functional analysis of Alkbh5 and m6A in the central nervous system (CNS).
Collapse
Affiliation(s)
- Tingfu Du
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, 650118, China; Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100005, China; Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, 650118, China
| | - Guoxiang Li
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, 650118, China
| | - Jinling Yang
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, 650118, China; Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, 650118, China
| | - Kaili Ma
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, 650118, China; Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100005, China; Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, 650118, China.
| |
Collapse
|
16
|
Sha L, Chen T, Deng Y, Du T, Ma K, Zhu W, Shen Y, Xu Q. Hsp90 inhibitor HSP990 in very low dose upregulates EAAT2 and exerts potent antiepileptic activity. Theranostics 2020; 10:8415-8429. [PMID: 32724478 PMCID: PMC7381737 DOI: 10.7150/thno.44721] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 06/11/2020] [Indexed: 12/26/2022] Open
Abstract
Rationale: Dysfunction or reduced levels of EAAT2 have been documented in epilepsy. We previously demonstrated the antiepileptic effects of Hsp90 inhibitor 17AAG in temporal lobe epilepsy by preventing EAAT2 degradation. Because of the potential toxicities of 17AAG, this study aimed to identify an alternative Hsp90 inhibitor with better performance on Hsp90 inhibition, improved blood-brain barrier penetration and minimal toxicity. Methods: We used cell-based screening and animal models of epilepsy, including mouse models of epilepsy and Alzheimer's disease, and a cynomolgus monkey model of epilepsy, to evaluate the antiepileptic effects of new Hsp90 inhibitors. Results: In both primary cultured astrocytes and normal mice, HSP990 enhanced EAAT2 levels at a lower dose than other Hsp90 inhibitors. In epileptic mice, administration of 0.1 mg/kg HSP990 led to upregulation of EAAT2 and inhibition of spontaneous seizures. Additionally, HSP990 inhibited seizures and improved cognitive functions in the APPswe/PS1dE9 transgenic model of Alzheimer's disease. In a cynomolgus monkey model of temporal lobe epilepsy, oral administration of low-dose HSP990 completely suppressed epileptiform discharges for up to 12 months, with no sign of hepatic and renal toxicity. Conclusions: These results support further preclinical studies of HSP990 treatment for temporal lobe epilepsy.
Collapse
Affiliation(s)
- Longze Sha
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
- Neuroscience center, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Ting Chen
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Yu Deng
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Tingfu Du
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
- Neuroscience center, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Kaili Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
- Neuroscience center, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Wanwan Zhu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
- Neuroscience center, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Yan Shen
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Qi Xu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
- Neuroscience center, Chinese Academy of Medical Sciences, Beijing, 100005, China
| |
Collapse
|
17
|
Shmuylovich L, Mishra D, Hurbon H, Yu A, Du T, Wang T, Berezin M. 843 Seeing water in the skin: Hyperspectral imaging in the short-wave infrared. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.859] [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: 11/26/2022]
|
18
|
Deras I, Du T, Zhao C, Haseley N, Yazdanparast A, Jiang T, Mentzer A, Purdy A, Crain B, Echegaray C, Lee D, Lee J, Silhavy J, O’Brien K, Vijayaraghavan R, Garcia R, Haigis R, Pawlowski T, Dockter J. Clinical and analytical accuracy of a 523 gene panel next-generation sequencing (NGS) assay on formalin-fixed paraffin-embedded (FFPE) solid tumour samples. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.005] [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: 11/13/2022] Open
|
19
|
Du T, Wu Z, Luo H, Lu S, Ma K. Injection of α-syn-98 Aggregates Into the Brain Triggers α-Synuclein Pathology and an Inflammatory Response. Front Mol Neurosci 2019; 12:189. [PMID: 31447645 PMCID: PMC6691047 DOI: 10.3389/fnmol.2019.00189] [Citation(s) in RCA: 7] [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: 04/29/2019] [Accepted: 07/22/2019] [Indexed: 11/24/2022] Open
Abstract
Pathological aggregation of α-synuclein (α-syn) is a major component of Lewy bodies (LB), which play a central role in pathogenesis of Parkinson’s disease (PD). Differential expression of α-syn isoforms has been shown in PD. Isoform α-syn-98 is generated by excision of exon-3 and exon-5 of the α-syn gene. In contrast to the canonical full-length α-syn isoform (α-syn140), little is known about the function of the α-syn-98 isoform. In the present study, to identify the potential role of α-syn-98 protein in PD, we examined the effects of exogenous recombinant insoluble α-syn-98 aggregates on α-syn pathology and inflammatory responses in the midbrain. After injection of α-syn-98 aggregates into the substantia nigra (SN), mice exhibited motor dysfunction accompanied by nigral dopaminergic neuron loss. In addition, α-syn-98 aggregates injection resulted in a significant increase in phosphorylation of endogenous α-syn. Accumulations of α-syn were co-localized with p62 and ubiquitin, which suggests α-syn-98 aggregates-induced pathology exhibits properties similar to human LB. Many glial cells were activated after α-syn-98 aggregates injection. In addition, expression of NF-κB, interleukin 6 (IL6), and tumor necrosis factor-α (TNF-α) and levels of oxidative stress increased after α-syn-98 aggregates injection. Our results suggest that α-syn-98 may play a crucial role in the pathogenesis of PD.
Collapse
Affiliation(s)
- Tingfu Du
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, China.,Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| | - Zhengcun Wu
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| | - Haiyu Luo
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| | - Shuaiyao Lu
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| | - Kaili Ma
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, China.,Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, China.,Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming, China
| |
Collapse
|
20
|
Huang Y, Wang J, Abe A, Wang Y, Du T, Huang C. A theoretical model to estimate inactivation effects of OH radicals on marine Vibrio sp. in bubble-shock interaction. Ultrason Sonochem 2019; 55:359-368. [PMID: 30852154 DOI: 10.1016/j.ultsonch.2018.10.001] [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: 06/07/2018] [Revised: 09/07/2018] [Accepted: 10/02/2018] [Indexed: 06/09/2023]
Abstract
A theoretical model for estimating inactivation effects on marine Vibrio sp. is developed from the viewpoint of the chemical action of the OH radicals induced by interaction of bubbles with shock waves. It consists of a biological probability model for cell viability and a bubble dynamic model for its collapsing motion due to the shock pressures. The biological probability model is built by defining a sterilized space of the OH radicals. To determine the radius of the sterilized space, the Herring equation is solved in the bubble dynamic model in consideration of the effect of the heat conductivity and mass transportation. Furthermore, the pressure waveform of incident shock wave used in the model is obtained with the pressure measurement. On the other hand, a bio-experiment of marine Vibrio sp. is carried out using a high-voltage power supply in a cylindrical water chamber. Finally, the viability ratio of marine bacteria estimated by the theoretical model is examined under the experimental conditions of this study. In addition, we also discuss the influence of bubble initial size for predicting the inactivation effects.
Collapse
Affiliation(s)
- Y Huang
- Key Laboratory for Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, No.15 Beisihuanxi Road, Beijing 100190, China; High School Affiliated to Renmin University of China, Beijing 100080, China
| | - J Wang
- Key Laboratory for Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, No.15 Beisihuanxi Road, Beijing 100190, China; School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - A Abe
- Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukaeminami-machi, Kobe 658-0022, Japan
| | - Y Wang
- Key Laboratory for Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, No.15 Beisihuanxi Road, Beijing 100190, China; School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - T Du
- Key Laboratory for Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, No.15 Beisihuanxi Road, Beijing 100190, China; School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - C Huang
- Key Laboratory for Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, No.15 Beisihuanxi Road, Beijing 100190, China; School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
21
|
Jiménez A, Araya R, Paniagua D, Camacho-Mora Z, Du T, Golding G, Leandro-Astorga G, Rodríguez C, Quesada-Gómez C. Molecular epidemiology and antimicrobial resistance of Clostridium difficile in a national geriatric hospital in Costa Rica. J Hosp Infect 2018; 99:475-480. [DOI: 10.1016/j.jhin.2018.03.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 03/22/2018] [Indexed: 12/19/2022]
|
22
|
Levine KM, Du T, Zhu L, Tasdemir N, Lee AV, Van Houten B, Tseng GC, Oesterreich S. Abstract P1-03-03: Invasive lobular carcinoma and invasive ductal carcinoma differ in immune response, translation efficiency and metabolic rate. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-03-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Invasive lobular carcinoma (ILC) is the second most common histological subtype of breast cancer after invasive ductal carcinoma (IDC). ILC differs from IDC in pathologic, molecular, and clinical features. ILC tumors are most often characterized as luminal A by PAM50 analysis, suggestive of an indolent disease. Yet, when matched for receptor status and tumor grade, patients with ILC tend to have worse long-term outcomes than patients with IDC. The main distinguishing molecular feature of ILC is the loss of functional E-cadherin, and yet, beyond that loss, the mechanisms underlying the differences between ILC and IDC are largely unknown. We examined the RNA expression profiles of ILC and IDC tumors to assess if there may be underlying vulnerabilities of ILC tumors to novel therapeutic strategies.
Methods
Differential expression analysis was performed on 159 luminal A (LumA) ILC tumors versus 311 LumA IDC tumors from The Cancer Genome Atlas (TCGA). The METABRIC cohort (65 LumA ILC and 533 LumA IDC) was used as a validation dataset. Pathway enrichment analysis was performed to identify potential differences in biological processes, and these potential differences were then tested in a series of in vitro experiments, using 3 ER+ ILC (MDA-MB-134VI, SUM44PE, and MDA-MB-330) and 3 ER+ IDC (MCF7, T47D, and ZR75.1) cell lines.
Results
Pathway analysis led to the identification of three main signaling differences between LumA ILC and LumA IDC: immune regulation, translation, and metabolism. A series of immune pathways, including Immunological Synapse, Biocarta IL17 pathway, and Response to Wounding were up-regulated in ILC tumors. We examined specific cell type markers, and found that ILC tumors have a higher activity of nearly all immune cell types, including CD4+ T cells, CD8+ T cells, B cells, NK cells, dendritic cells, M1 macrophages, and M2 macrophages. These results were surprising, since ILC tumors have a lower incidence of stromal inflammation, as defined by H&E staining, suggesting a unique immune regulatory mechanism in ILC.
Next, we examined the translational regulation in ILC vs IDC tumors by comparing RNA expression and protein quantities as determined by RPPA analysis. ILC tumors have a lower protein:RNA ratio, suggesting a lower translation efficiency. This was reflected in the RPPA data by lower protein expression of eIF4G, ribosome protein S6 (S6) and p70-S6K in ILC tumors. Phosphorylation of 4E-BP1 (Ser65), eEF2, S6 (Ser235/236, Ser240/244), and mTOR (Ser2448) were also significantly lower in LumA ILCs. This lower translation efficiency was then validated in cell lines by O-propargyl-puromycin treatment.
Finally, the pathway analysis suggested lower rates of metabolism in lobular tumors. Comparative studies of OXPHOS and glycolysis with a Seahorse analyzer confirmed this finding.
Conclusions
ILC tumors have a higher immune activity than IDC tumors, even with lower rates of stromal inflammation, suggesting a potential for differential response to immunotherapy. The lower rates of translation and metabolism, which are general identifiers of tumor dormancy, could enable ILC to escape from cytotoxic therapies, and may play an important role in the late recurrence of ILC.
Citation Format: Levine KM, Du T, Zhu L, Tasdemir N, Lee AV, Van Houten B, Tseng GC, Oesterreich S. Invasive lobular carcinoma and invasive ductal carcinoma differ in immune response, translation efficiency and metabolic rate [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-03-03.
Collapse
Affiliation(s)
- KM Levine
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - T Du
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - L Zhu
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - N Tasdemir
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - AV Lee
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - B Van Houten
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - GC Tseng
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| | - S Oesterreich
- University of Pittsburgh, Pittsburgh, PA; Tsinghua University, Beijing, China
| |
Collapse
|
23
|
Du T, Hill L, Ding L, Towbin A, DeJonckheere M, Bennett P, Hagerman N, Varughese A, Pratap J. Gastric emptying for liquids of different compositions in children. Br J Anaesth 2017; 119:948-955. [DOI: 10.1093/bja/aex340] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2017] [Indexed: 02/04/2023] Open
|
24
|
Du T, Kuang Y. Factors affecting sex ratio of offspring from frozen-thawed embryo transfer cycles of in vitro fertilization/intracytoplasmic sperm injection. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.987] [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: 11/29/2022]
|
25
|
Shen ZH, Zhao KM, Du T. HOXA10 promotes nasopharyngeal carcinoma cell proliferation and invasion via inducing the expression of ZIC2. Eur Rev Med Pharmacol Sci 2017; 21:945-952. [PMID: 28338202] [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: 06/06/2023]
Abstract
OBJECTIVE In this study, we aimed to explore the dysregulated genes in nasopharyngeal carcinoma (NPC) and to investigate the regulative effect of HOXA10 on ZIC2 expression and their involvement in NPC cell proliferation and invasion. MATERIALS AND METHODS Microarray data that compared the transcription profile of NPC tissues and normal tissues was searched in GEO datasets and was re-analyzed. The expression of HOXA10 and ZIC2 mRNA were retrieved in TCGA database. CNE1 and CNE2 cells were used as an in-vitro cell model. Luciferase reporters carrying truncated ZIC2 promoter sequences were generated to verify the predicted HOXA10 binding site. CCK-8 assay and transwell assay were applied to assess cell proliferation and invasion respectively. RESULTS HOXC6, HOXA3, and HOXA10 were upregulated in NPC tissues. Data mining in TCGA database showed that HOXA10, but not HOXC6 or HOXA3 is positively correlated to ZIC2 expression. Enforced HOXA10 expression significantly elevated ZIC2 expression at both mRNA and protein levels in both CNE1 and CNE2 cells. HOXA10 can directly bind to the promoter of ZIC2 and upregulate ZIC2 transcription. ZIC2 knockdown significantly reduced cell proliferation and invasion capability of CNE1 cells and also partly abrogated the effect of HOXA10 overexpression on enhancing cell proliferation and invasion. CONCLUSIONS Both HOXA10 and ZIC2 are upregulated in NPC tissues compared to the normal tissues. HOXA10 can increase ZIC2 expression via binding to the ZIC2 promoter. Functionally, the HOXA10-ZIC2 axis can enhance NPC cell proliferation and invasion.
Collapse
Affiliation(s)
- Z-H Shen
- Department of Nuclear Medicine, Yishui Central Hospital of Linyi, Linyi, Shandong, China.
| | | | | |
Collapse
|
26
|
Ye N, Rao S, Du T, Hu H, Liu Z, Shen Y, Xu Q. Intergenic variants may predispose to major depression disorder through regulation of long non-coding RNA expression. Gene 2017; 601:21-26. [DOI: 10.1016/j.gene.2016.11.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/01/2016] [Accepted: 11/30/2016] [Indexed: 12/15/2022]
|
27
|
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic disorder that severely affects human health, but the pathogenesis of the disease remains unknown. The high-fat/high-sucrose diets combined with streptozotocin- (STZ-) induced nonhuman primate animal model of diabetes are a valuable research source of T2DM. Here, we present a study of a STZ rhesus macaque model of T2DM that utilizes quantitative iTRAQ-based proteomic method. We compared the protein profiles in the liver of STZ-treated macaques as well as age-matched healthy controls. We identified 171 proteins differentially expressed in the STZ-treated groups, about 70 of which were documented as diabetes-related gene in previous studies. Pathway analyses indicated that the biological functions of differentially expressed proteins were related to glycolysis/gluconeogenesis, fatty acid metabolism, complements, and coagulation cascades. Expression change in tryptophan metabolism pathway was also found in this study which may be associations with diabetes. This study is the first to explore genome-wide protein expression in hepatic tissue of diabetes macaque model using HPLC-Q-TOF/MS technology. In addition to providing potential T2DM biomarkers, this quantitative proteomic study may also shed insights regarding the molecular pathogenesis of T2DM.
Collapse
Affiliation(s)
- Tingfu Du
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
- Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing 100005, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming 650118, China
| | - Shuaiyao Lu
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming 650118, China
| | - Qinfang Jiang
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming 650118, China
| | - Yun Li
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming 650118, China
| | - Kaili Ma
- Center for Drug Safety Evaluation and Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118, China
- Medical Primate Research Center & Neuroscience Center, Chinese Academy of Medical Sciences, Beijing 100005, China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Diseases, Kunming 650118, China
| |
Collapse
|
28
|
Du T, Sun X, Yuan G, Zhou X, Lu H, Lin X, Yu X. Sex differences in the impact of nonalcoholic fatty liver disease on cardiovascular risk factors. Nutr Metab Cardiovasc Dis 2017; 27:63-69. [PMID: 27956025 DOI: 10.1016/j.numecd.2016.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 05/25/2016] [Revised: 10/08/2016] [Accepted: 10/12/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Information on sex differences in the association of nonalcoholic fatty liver disease (NAFLD) with cardiovascular disease (CVD) risk factors is scarce. We examined whether men exhibit greater differences in established CVD risk factors between NAFLD and non-NAFLD than women. METHODS AND RESULTS We conducted a cross-sectional analysis using a cohort of 10761 apparently healthy Chinese adults who underwent comprehensive health checkups including abdominal ultrasonography. In the setting of NAFLD and non-NAFLD, although men had significantly higher levels of atherogenic lipids as indicated by higher levels of triglyceride, triglyceride/HDL-cholesterol, and lower levels of HDL-cholesterol and worsen renal function as indicated by higher levels of creatinine and lower levels of estimated glomerular filtration rate (eGFR) than female counterparts, men with NAFLD showed greater relative differences in atherogenic lipids and deteriorated renal function than women with NAFLD when compared with their non-NAFLD counterparts. The interactions between sex and NAFLD on triglyceride, HDL-cholesterol, triglyceride/HDL-cholesterol, creatinine, and eGFR were statistically significant (P < 0.05). In the multivariate Logistic regression analyses, we observed a stronger association of TG with NAFLD and comparable associations of eGFR or HDL-C with NAFLD in men compared with women. CONCLUSION There was greater adverse influence of NAFLD per se on triglyceride, and triglyceride/HDL-cholesterol in men compared with women. The greater adverse influence of NAFLD per se on HDL-C and eGFR in men compared with women probably related to the gender differences in TG levels.
Collapse
Affiliation(s)
- T Du
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Sun
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G Yuan
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Zhou
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Lu
- Department of Health Examination, Wuhan Iron and Steel Company (WISCO) General Hospital, Wuhan 430080, China
| | - X Lin
- Department of Endocrinology, Wuhan Iron and Steel Company (WISCO) General Hospital, Wuhan 430080, China
| | - X Yu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| |
Collapse
|
29
|
Liu S, Du T, Liu Z, Shen Y, Xiu J, Xu Q. Inverse changes in L1 retrotransposons between blood and brain in major depressive disorder. Sci Rep 2016; 6:37530. [PMID: 27874048 PMCID: PMC5118746 DOI: 10.1038/srep37530] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 05/17/2016] [Accepted: 10/31/2016] [Indexed: 12/25/2022] Open
Abstract
Long interspersed nuclear element-1 (LINE-1 or L1) is a type of retrotransposons comprising 17% of the human and mouse genome, and has been found to be associated with several types of neurological disorders. Previous post-mortem brain studies reveal increased L1 copy number in the prefrontal cortex from schizophrenia patients. However, whether L1 retrotransposition occurs similarly in major depressive disorder (MDD) is unknown. Here, L1 copy number was measured by quantitative PCR analysis in peripheral blood of MDD patients (n = 105) and healthy controls (n = 105). The results showed that L1 copy number was increased in MDD patients possibly due to its hypomethylation. Furthermore, L1 copy number in peripheral blood and five brain regions (prefrontal cortex, hippocampus, amygdala, nucleus accumbens and paraventricular hypothalamic nucleus) was measured in the chronic unpredictable mild stress (CUMS) model of depression in mice. Intriguingly, increased L1 copy number in blood and the decreased L1 copy number in the prefrontal cortex were observed in stressed mice, while no change was found in other brain regions. Our results suggest that the changes of L1 may be associated with the pathophysiology of MDD, but the biological mechanism behind dysfunction of L1 retrotransposition in MDD remains to be further investigated.
Collapse
Affiliation(s)
- Shu Liu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China
| | - Tingfu Du
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China.,Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, 650118, China
| | - Zeyue Liu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China
| | - Yan Shen
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China
| | - Jianbo Xiu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China
| | - Qi Xu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences &Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing, 10005, China
| |
Collapse
|
30
|
Du T, Fan Y, Chen Q, Lyu Q, Kuang Y. Recurrence risk of ectopic pregnancy is not increased for patients with previous ectopic pregnancy compared with those without previous ectopic pregnancy in frozen blastocyst transfer cycles: a study based on more than 30,000 cycles. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.082] [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: 11/15/2022]
|
31
|
Du T, Chen Q, Lyu Q, Kuang Y. Is blastocyst transfer associated with a significantly lower incidence of ectopic pregnancy? a strictly controlled retrospect cohort study based on more than 30,000 frozen embryo transfer cycles. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.304] [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: 10/21/2022]
|
32
|
Du T, Chen Q, Lyu Q, Kuang Y. Effects of different endometrial preparations on the outcomes of frozen embryo transfer cycles of in vitro fertilization/intracytoplasmic sperm injection: a study based on more than 30,000 cycles. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.978] [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: 11/28/2022]
|
33
|
Zhou TT, Quan LL, Chen LP, Du T, Sun KX, Zhang JC, Yu L, Li Y, Wan P, Chen LL, Jiang BH, Hu LH, Chen J, Shen X. SP6616 as a new Kv2.1 channel inhibitor efficiently promotes β-cell survival involving both PKC/Erk1/2 and CaM/PI3K/Akt signaling pathways. Cell Death Dis 2016; 7:e2216. [PMID: 27148689 PMCID: PMC4917657 DOI: 10.1038/cddis.2016.119] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 09/01/2015] [Revised: 04/07/2016] [Accepted: 04/11/2016] [Indexed: 12/31/2022]
Abstract
Kv2.1 as a voltage-gated potassium (Kv) channel subunit has a pivotal role in the regulation of glucose-stimulated insulin secretion (GSIS) and pancreatic β-cell apoptosis, and is believed to be a promising target for anti-diabetic drug discovery, although the mechanism underlying the Kv2.1-mediated β-cell apoptosis is obscure. Here, the small molecular compound, ethyl 5-(3-ethoxy-4-methoxyphenyl)-2-(4-hydroxy-3-methoxybenzylidene)-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate (SP6616) was discovered to be a new Kv2.1 inhibitor. It was effective in both promoting GSIS and protecting β cells from apoptosis. Evaluation of SP6616 on either high-fat diet combined with streptozocin-induced type 2 diabetic mice or db/db mice further verified its efficacy in the amelioration of β-cell dysfunction and glucose homeostasis. SP6616 treatment efficiently increased serum insulin level, restored β-cell mass, decreased fasting blood glucose and glycated hemoglobin levels, and improved oral glucose tolerance. Mechanism study indicated that the promotion of SP6616 on β-cell survival was tightly linked to its regulation against both protein kinases C (PKC)/extracellular-regulated protein kinases 1/2 (Erk1/2) and calmodulin(CaM)/phosphatidylinositol 3-kinase(PI3K)/serine/threonine-specific protein kinase (Akt) signaling pathways. To our knowledge, this may be the first report on the underlying pathway responsible for the Kv2.1-mediated β-cell protection. In addition, our study has also highlighted the potential of SP6616 in the treatment of type 2 diabetes.
Collapse
Affiliation(s)
- T T Zhou
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - L L Quan
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L P Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - T Du
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - K X Sun
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - J C Zhang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L Yu
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Li
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - P Wan
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L L Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - B H Jiang
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - L H Hu
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - J Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - X Shen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
34
|
Du T, Mahmoud M. Variability of fasting outcomes observed in a single patient. Br J Anaesth 2016; 116:560-1. [PMID: 26994238 DOI: 10.1093/bja/aew043] [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: 11/14/2022] Open
|
35
|
Du T, Rao S, Wu L, Ye N, Liu Z, Hu H, Xiu J, Shen Y, Xu Q. An association study of the m6A genes with major depressive disorder in Chinese Han population. J Affect Disord 2015; 183:279-86. [PMID: 26047305 DOI: 10.1016/j.jad.2015.05.025] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [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: 01/28/2015] [Revised: 04/17/2015] [Accepted: 05/11/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Major depressive disorder (MDD) is a common, chronic and recurrent mental disease but the precise mechanism behind this disorder remains unknown. FTO is one of the N6-methyladenosine (m6A) modification genes and has recently been found to be associated with depression. N6-methyladenosine (m6A) is the most abundant internal modification on RNA, which is highly enriched within the brain. There are five genes involved in m6A modification including FTO, but whether these m6A modification genes could confer a risk of MDD is still unclear. This study aimed to investigate the genetic influence of the m6A modification genes on risk of MDD. METHODS We genotyped 23 SNPs in 5 modification genes among 738 patients with MDD and 1098 controls. The UNPHASED program was applied to analyze the genotyping data for allelic and genotypic association with MDD. RESULTS Of the 23 SNPs selected, rs12936694 from the m6A demethylase gene ALKBH5 showed allelic association (χ(2)=11.19, p=0.0008, OR=1.491, 95%CI 1.179-1.887) and genotypic association (χ(2)=12.26, df=2, p=0.0022) with MDD. LIMITATIONS Replication and functional study are required to draw a firm conclusion. CONCLUSIONS The ALKBH5 gene may play a role in conferring risk of MDD in the Chinese population.
Collapse
Affiliation(s)
- Tingfu Du
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Shuquan Rao
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Lin Wu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Ning Ye
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Zeyue Liu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Huiling Hu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Jianbo Xiu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Yan Shen
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China
| | - Qi Xu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Tsinghua University, Beijing 100005, China.
| |
Collapse
|
36
|
Du T, Chen H, Lyu Q, Kuang Y. Recurrent ectopic pregnancy history is one of the risk factors of intrauterine implantation failure in women undergoing frozen-thawed embryo transfer cycles. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1069] [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: 11/16/2022]
|
37
|
Zhao CX, Fan F, Du T, Chigrinov VG, Kwok HS. Multilayer photo-aligned thin-film structure for polarizing photonics. Opt Lett 2015; 40:2993-2996. [PMID: 26125350 DOI: 10.1364/ol.40.002993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this Letter, an advanced multilayer photo-aligned liquid crystal polymer (LCP) thin-film structure with multiple optical functions is introduced. Within each LCP layer, a spatially distribution of local optical axes can be controlled by a patterned photo-alignment layer. As an embodiment of the proposed structure, a two-layer structure with pixelated controlled light-propagation directions and polarizations has been studied, which has shown the potential to be used as a photomask for generating multi-domain photo-alignment structures with a single exposure step. The combination of the multilayer structure with patterned photo-alignment technology provides a new perspective of designing optical structures for polarizing photonics applications.
Collapse
|
38
|
Peng X, Dong M, Ma L, Jia XE, Mao J, Jin C, Chen Y, Gao L, Liu X, Ma K, Wang L, Du T, Jin Y, Huang Q, Li K, Zon LI, Liu T, Deng M, Zhou Y, Xi X, Zhou Y, Chen S. A point mutation of zebrafish c-cbl gene in the ring finger domain produces a phenotype mimicking human myeloproliferative disease. Leukemia 2015; 29:2355-65. [PMID: 26104663 DOI: 10.1038/leu.2015.154] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 05/09/2015] [Accepted: 05/12/2015] [Indexed: 12/12/2022]
Abstract
Controlled self-renewal and differentiation of hematopoietic stem/progenitor cells (HSPCs) are critical for vertebrate development and survival. These processes are tightly regulated by the transcription factors, signaling molecules and epigenetic factors. Impaired regulations of their function could result in hematological malignancies. Using a large-scale zebrafish N-ethyl-N-nitrosourea mutagenesis screening, we identified a line named LDD731, which presented significantly increased HSPCs in hematopoietic organs. Further analysis revealed that the cells of erythroid/myeloid lineages in definitive hematopoiesis were increased while the primitive hematopoiesis was not affected. The homozygous mutation was lethal with a median survival time around 14-15 days post fertilization. The causal mutation was located by positional cloning in the c-cbl gene, the human ortholog of which, c-CBL, is found frequently mutated in myeloproliferative neoplasms (MPN) or acute leukemia. Sequence analysis showed the mutation in LDD731 caused a histidine-to-tyrosine substitution of the amino acid codon 382 within the RING finger domain of c-Cbl. Moreover, the myeloproliferative phenotype in zebrafish seemed dependent on the Flt3 (fms-like tyrosine kinase 3) signaling, consistent with that observed in both mice and humans. Our study may shed new light on the pathogenesis of MPN and provide a useful in vivo vertebrate model of this syndrome for screening drugs.
Collapse
Affiliation(s)
- X Peng
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - M Dong
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Ma
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China.,Shanghai Center for Systems Biomedicine, Ministry of Education Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
| | - X-E Jia
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Mao
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - C Jin
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Chen
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - L Gao
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Liu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - K Ma
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Wang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - T Du
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - Y Jin
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - Q Huang
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - K Li
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - L I Zon
- Stem Cell Program at Boston Children's Hospital, Hematology/Oncology Program at Children's Hospital and Dana Faber Cancer Institute, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Boston, MA, USA
| | - T Liu
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China.,Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Deng
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Zhou
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate University, Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Xi
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| | - Y Zhou
- Stem Cell Program at Boston Children's Hospital, Hematology/Oncology Program at Children's Hospital and Dana Faber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - S Chen
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, and Collaborative Innovation Center of Systems Biomedicine, SJTU, Shanghai, China
| |
Collapse
|
39
|
Wang F, Du T, Liang C, Verkhratsky A, Peng L. Ammonium increases Ca(2+) signalling and upregulates expression of Cav1.2 gene in astrocytes in primary cultures and in the in vivo brain. Acta Physiol (Oxf) 2015; 214:261-74. [PMID: 25846713 DOI: 10.1111/apha.12500] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 02/05/2015] [Revised: 03/16/2015] [Accepted: 03/27/2015] [Indexed: 12/12/2022]
Abstract
AIM The primary aim of this study was to identify the effects of hyperammonaemia on functional expression of Cav1.2 L-type Ca(2+) channels in astroglia. METHODS Primary cultures of mouse astrocytes were used to study effects of chronic treatment (1-5 days) with ammonium chloride, at 1, 3 and 5 mm on depolarization-induced increases in free cytosolic Ca(2+) concentration ([Ca(2+)]i , measured with Fura-2 based microfluorimetry) in control conditions and following treatment with the L-type Ca(2+) channel inhibitor, nifedipine, or with ryanodine receptor inhibitor, ryanodine. Expression of Cav1.2 mRNA was identified with RT-PCR, whereas protein content was determined by Western blotting. Sustained hyperammonaemia in vivo was induced by daily injections of urease (33 units kg body weight(-1), i.p.) for 3 days. RESULTS Depolarization-induced [Ca(2+)]i transients sensitive to nifedipine (peak of the response) and to ryanodine (plateau phase) were significantly increased in astrocytes chronically exposed to ammonium. The ammonium-induced increase in Ca(2+) influx in astrocytes resulted from an upregulation of Cav1.2 channel's expression detected at mRNA and protein levels. Increase in Cav1.2 expression was prevented by ouabain antagonist canrenone. Similar upregulation of Cav1.2 gene expression was found in the brains of adult mice subjected to intraperitoneal injection of urease. In transgenic mice tagged with an astrocyte-specific or neurone-specific markers and treated with intraperitoneal injections of urease, the fluorescence-activated cell sorting of neurones and astrocytes demonstrated that Cav1.2 mRNA expression was upregulated in astrocytes, but not in neurones. CONCLUSIONS Ammonium-induced deregulation of astroglial Ca(2+) signalling, is, in part, associated with upregulation of Cav1.2 L-type calcium channels.
Collapse
Affiliation(s)
- F. Wang
- Laboratory of Brain Metabolic Diseases; Institute of Metabolic Disease Research and Drug Development; China Medical University; Shenyang China
| | - T. Du
- Laboratory of Brain Metabolic Diseases; Institute of Metabolic Disease Research and Drug Development; China Medical University; Shenyang China
| | - C. Liang
- Laboratory of Brain Metabolic Diseases; Institute of Metabolic Disease Research and Drug Development; China Medical University; Shenyang China
| | - A. Verkhratsky
- Faculty of Life Science; The University of Manchester; Manchester UK
- Achucarro Center for Neuroscience; IKERBASQUE; Basque Foundation for Science; Bilbao Spain
- University of Nizhny Novgorod; Nizhny Novgorod Russia
| | - L. Peng
- Laboratory of Brain Metabolic Diseases; Institute of Metabolic Disease Research and Drug Development; China Medical University; Shenyang China
| |
Collapse
|
40
|
Du T, Zhang J, Yuan G, Zhang M, Zhou X, Liu Z, Sun X, Yu X. Nontraditional risk factors for cardiovascular disease and visceral adiposity index among different body size phenotypes. Nutr Metab Cardiovasc Dis 2015; 25:100-107. [PMID: 25159728 PMCID: PMC4302064 DOI: 10.1016/j.numecd.2014.07.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 09/08/2013] [Revised: 07/08/2014] [Accepted: 07/14/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND AIMS Increased cardiovascular disease and mortality risk in metabolically healthy obese (MHO) individuals remain highly controversial. Several studies suggested risk while others do not. The traditional cardiovascular risk factors may be insufficient to demonstrate the complete range of metabolic abnormalities in MHO individuals. Hence, we aimed to compare the prevalence of elevated lipoprotein (a), apolipoprotein B, and uric acid (UA) levels, apolipoprotein B/apolipoprotein A1 ratio, and visceral adiposity index (VAI) scores, and low apolipoprotein A1 levels among 6 body size phenotypes (normal weight with and without metabolic abnormalities, overweight with and without metabolic abnormalities, and obese with or without metabolic abnormalities). METHODS AND RESULTS We conducted a cross-sectional analysis of 7765 Chinese adults using data from the nationwide China Health and Nutrition Survey 2009. MHO persons had intermediate prevalence of elevated apolipoprotein B and UA levels, apolipoprotein B/apolipoprotein A1 ratio and VAI scores, and low apolipoprotein A1 levels between metabolically healthy normal-weight (MHNW) and metabolically abnormal obese individuals (P < 0.001 for all comparisons). Elevated apolipoprotein B and UA concentrations, apolipoprotein B/apolipoprotein A1 ratio, and VAI scores were all strongly associated with the MHO phenotype (all P < 0.01). CONCLUSIONS Prevalence of elevated apolipoprotein B and UA levels, apolipoprotein B/apolipoprotein A1 ratio and VAI scores, and low levels of apolipoprotein A1 was higher among MHO persons than among MHNW individuals. The elevated levels of the nontraditional risk factors and VAI scores in MHO persons could contribute to the increased cardiovascular disease risk observed in long-term studies.
Collapse
Affiliation(s)
- T Du
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J Zhang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G Yuan
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Zhang
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Zhou
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Liu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Sun
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - X Yu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| |
Collapse
|
41
|
Rao S, Du T, Xu Q. [The application of exome sequencing in human disease]. Yi Chuan 2014; 36:1077-1086. [PMID: 25567866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It is estimated that approximately 85% of human disease mutations are located in protein coding regions, therefore selectively sequencing all protein coding regions (exome) would be cost-effective and an alternative strategy to identify diseases' varaints. In 2009, scientists successfully identified one missense mutation in MYH3 among 4 individuals with Freeman Sheldon syndrome (one autosomal dominant disease) through exome sequencing. Since then, exome sequencing has been widely used to identify disease causative or susceptibility genes in Mendelian disorders and complex diseases. The application of exome sequencing in human diseases were summarized in this review.
Collapse
|
42
|
Abstract
Deep venous thrombosis (DVT) is a common surgical complication in cancer patients and
evidence that inflammation plays a role in the occurrence of DVT is increasing. We
studied a population of cancer patients with abdominal malignancies with the aim of
investigating whether the levels of circulating inflammatory cytokines were
associated with postoperative DVT, and to determine the levels in DVT diagnoses. The
serum levels of C-reactive protein (CRP), interleukins (IL)-6 and IL-10, nuclear
transcription factor-κB (NF-κB) and E-selectin (E-Sel) were determined in 120
individuals, who were divided into 3 groups: healthy controls, patients with and
patients without DVT after surgery for an abdominal malignancy. Data were analyzed by
ANOVA, Dunnet's T3 test, chi-square test, and univariate and multivariate logistic
regression as needed. The CRP, IL-6, NF-κB, and E-Sel levels in patients with DVT
were significantly higher than those in the other groups (P<0.05). The IL-10 level
was higher in patients with DVT than in controls but lower than in patients without
DVT. Univariate analysis revealed that CRP, IL-6, NF-κB, and E-Sel were statistically
associated with the risk of DVT (OR=1.98, P=0.002; OR=1.17, P=0.000; OR=1.03,
P=0.042; and OR=1.38, P=0.003; respectively), whereas IL-10 had a protective effect
(OR=0.94, P=0.011). Multivariate analysis showed that E-Sel was an independent risk
factor (OR=1.41, P=0.000). Thus, this study indicated that an increased serum level
of E-Sel was associated with increased DVT risk in postoperative patients with
abdominal malignancy, indicating that E-Sel may be a useful predictor of diagnosis of
DVT.
Collapse
Affiliation(s)
- T Du
- Department of General Surgery, Zhongnan Hospital, School of Medicine, National Wuhan University, Wuhan, Hubei Province, China
| | - Z Tan
- Department of General Surgery, Zhongnan Hospital, School of Medicine, National Wuhan University, Wuhan, Hubei Province, China
| |
Collapse
|
43
|
Wang XQ, Fan F, Du T, Tam AMW, Ma Y, Srivastava AK, Chigrinov VG, Kwok HS. Liquid crystal Fresnel zone lens based on single-side-patterned photoalignment layer. Appl Opt 2014; 53:2026-2029. [PMID: 24787157 DOI: 10.1364/ao.53.002026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 02/16/2014] [Indexed: 06/03/2023]
Abstract
In this article, we disclose a method to fabricate a liquid crystal (LC) Fresnel zone lens (FZL) with high efficiency. The LCFZL, based on patterned planar-aligned regions, has been prepared by means of a two-step photoalignment technique. The proposed binary-phase LCFZL manifests 39% diffraction efficiency at the focal point, which is close to the theoretical limit, 41%. Moreover, because of a lower driving voltage and faster response time, these elements could find application in many modern devices.
Collapse
|
44
|
Shen Y, Zhou H, Campbell L, Wang Z, Wang R, Du T, Haapasalo M. Fatigue and nanomechanical properties of K3XF nickel-titanium instruments. Int Endod J 2014; 47:1160-7. [DOI: 10.1111/iej.12265] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 02/06/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Y. Shen
- Division of Endodontics; Department of Oral Biological and Medical Sciences; Faculty of Dentistry; The University of British Columbia; Vancouver BC Canada
- Department of Materials Engineering; The University of British Columbia; Vancouver BC Canada
| | - H. Zhou
- Center for Biomedical Materials and Engineering; College of Material Science and Chemical Engineering; Harbin Engineering University; Harbin China
| | - L. Campbell
- Division of Endodontics; Department of Oral Biological and Medical Sciences; Faculty of Dentistry; The University of British Columbia; Vancouver BC Canada
| | - Z. Wang
- Division of Endodontics; Department of Oral Biological and Medical Sciences; Faculty of Dentistry; The University of British Columbia; Vancouver BC Canada
| | - R. Wang
- Department of Materials Engineering; The University of British Columbia; Vancouver BC Canada
| | - T. Du
- Department of Stomatology; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - M. Haapasalo
- Division of Endodontics; Department of Oral Biological and Medical Sciences; Faculty of Dentistry; The University of British Columbia; Vancouver BC Canada
| |
Collapse
|
45
|
Du T, Chen J, Cao D. Inhibition of pure iron in sulphuric acid byN,N-dipropynoxymethylamine acetate and its synergism with chloride. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/000705900101501290] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
46
|
Du T, Yu J, Cao C. Photoelectrochemical investigation of ac modulated passive films on 304 stainless steel in weak alkaline and neutral solutions. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/000705900101501100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
47
|
Wang W, Dai LX, Zhang S, Yang Y, Yan N, Fan P, Dai L, Tian HW, Cheng L, Zhang XM, Li C, Zhang JF, Xu F, Shi G, Chen XL, Du T, Li YM, Wei YQ, Deng HX. Regulation of epidermal growth factor receptor signaling by plasmid-based microRNA-7 inhibits human malignant gliomas growth and metastasis in vivo. Neoplasma 2013; 60:274-83. [PMID: 23373996 DOI: 10.4149/neo_2013_036] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
MicroRNAs are endogenous, non-coding RNAs of approximately 20-22 nucleotides that regulate genes expression by binding to the 3' untranslated region (UTR) of targets mRNAs and play critical roles in cancer pathways. Malignant glioma is the most common and highly lethal central nervous system tumor for which little effective treatment is available over several decades. The purpose of this study was to explore the therapeutic potential of plasmid-based microRNA-7 (miR-7) for gliomas in vivo. Enhancing miR-7 levels in vitro could significantly induce cell apoptosis, and inhibit cell proliferation, cell migration and invasion. Western blotting analysis was performed, which indicated that miR-7 directly inhibited epidermal growth factor receptor (EGFR) and further antagonized the downstream protein kinases including ERK, Akt and Stat3. Furthermore, systemic administration of miR-7 encapsulated in cationic liposome resulted in glioma xenografts growth arrest and the metastatic nodules decrease effectively in a sequence-specific manner. In this study, miR-7 was applied in glioma treatment for the first time in vivo. Our findings suggested that the plasmid-mediated gene therapy with miR-7 appeared to be a promising candidate for the development of new antitumor and anti-metastasis treatment for human glioma.
Collapse
Affiliation(s)
- W Wang
- Sichuan University, Chengdu, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
McCracken M, Wong A, Mitchell R, Gravel D, Conly J, Embil J, Johnston L, Matlow A, Ormiston D, Simor AE, Smith S, Du T, Hizon R, Mulvey MR. Molecular epidemiology of vancomycin-resistant enterococcal bacteraemia: results from the Canadian Nosocomial Infection Surveillance Program, 1999-2009. J Antimicrob Chemother 2013; 68:1505-9. [DOI: 10.1093/jac/dkt054] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
49
|
Shen G, Li Y, Du T, Shi G, Dai L, Chen X, Zheng R, Li W, Su X, Zhang S, Wei Y, Yang S, Deng H. SKLB1002, a novel inhibitor of VEGF receptor 2 signaling, induces vascular normalization to improve systemically administered chemotherapy efficacy. Neoplasma 2012; 59:486-93. [PMID: 22668017 DOI: 10.4149/neo_2012_062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Vascular endothelial growth factor receptor (VEGFR) or vascular endothelial growth factor (VEGF) inhibitors have shown only modest clinical activity for most tumor types when used as single agents. However, present evidence indicates that these antiangiogenic drugs can cause transient "normalization" of the tumor vasculature, thereby improving the delivery of systemic chemotherapy. We examined temporal changes in tumor vascular function in response to the novel VEGFR2 inhibitor, SKLB1002. Established tumor-bearing animals were evaluated at serial time points for treatment-associated changes in tumor vascular architecture and function. As a result, blocking VEGF signaling by SKLB1002 produced a morphologically and functionally "normalized" vascular network. Consistent with our observations, a 2.2 fold increase in intratumoral doxorubicin levels was determined with SKLB1002 pretreatment compared with administration of doxorubicin alone. Finally, combined SKLB1002 and doxorubicin exhibited significant antitumor (49% of control size) and antimetastatic effects (12% of control metastatic nodules) in vivo. Our results showed SKLB1002 induced vascular normalization and enhanced anticancer drug delivery, which were associated with the observed synergistic effect in vivo.
Collapse
Affiliation(s)
- G Shen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Xie Q, Zhang S, Wang W, Li YM, Du T, Su XL, Wei YQ, Deng HX. Inhibition of hepatitis B virus gene expression by small interfering RNAs targeting cccDNA and X antigen. Acta Virol 2012; 56:49-55. [PMID: 22404609 DOI: 10.4149/av_2012_01_49] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To test the possible inhibition of hepatitis B virus (HBV) replication and expression by small interfering RNAs (siRNAs) targeting simultaneously covalenthy closed circular DNA (dnacccDNA) and X antigen, corresponding recombinant plasmids were transfected into HepG2.2.15 cells and the levels of cccDNA, HBXAg, HBcAg, and HBeAg were assayed at various times post transfection. As expected, the single siRNAs showed marked inhibitory effects but their combination was even more efficient. These results provide a new insight into the development of a potential anti-HBV strategy of enhancing the efficacy of individual antivirals and overcoming the high mutation rate of HBV.
Collapse
Affiliation(s)
- Q Xie
- Sichuan University, Chengdu, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|