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Tan M, Li W, He H, Wang J, Chen Y, Guo Y, Lin T, Ke F. Targeted mitochondrial fluorescence probe with large stokes shift for detecting viscosity changes in vivo and in ferroptosis process. Spectrochim Acta A Mol Biomol Spectrosc 2024; 315:124246. [PMID: 38593540 DOI: 10.1016/j.saa.2024.124246] [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] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/21/2024] [Accepted: 04/01/2024] [Indexed: 04/11/2024]
Abstract
We created four fluorescent sensors in our work to determine the viscosity of mitochondria. Following screening, the probe Mito-3 was chosen because in contrast to the other three probes, it had a greater fluorescence enhancement, large Stokes shift (113 nm) and had a particular response to viscosity that was unaffected by polarity or biological species. As the viscosity increased from PBS to 90 % glycerol, the fluorescence intensity of probe at 586 nm increased 17-fold. Mito-3 has strong biocompatibility and is able to track changes in cell viscosity in response to nystatin and monensin stimulation. Furthermore, the probe has been successfully applied to detect changes in viscosity caused by nystatin and monensin in zebrafish. Above all, the probe can be applied to the increase in mitochondrial viscosity that accompanies the ferroptosis process. Mito-3 has the potential to help further study the relationship between viscosity and ferroptosis.
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Affiliation(s)
- Meixia Tan
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Wei Li
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Hongxing He
- Fujian Medical University Laboratory Animal Center, Fujian Medical University, Fuzhou 350004, China
| | - Jin Wang
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Yan Chen
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Yuelin Guo
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Tiansheng Lin
- Department of Nuclear Medicine, Fujian Medical University Union Hospital, Fuzhou 350004, China.
| | - Fang Ke
- School of Pharmacy, Institute of Materia Medica, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China.
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2
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Li C, Clauson R, Bugada LF, Ke F, He B, Yu Z, Chen H, Jacobovitz B, Hu H, Chuikov P, Hill BD, Rizvi SM, Song Y, Sun K, Axenov P, Huynh D, Wang X, Garmire L, Lei YL, Grigorova I, Wen F, Cascalho M, Gao W, Sun D. Antigen-Clustered Nanovaccine Achieves Long-Term Tumor Remission by Promoting B/CD 4 T Cell Crosstalk. ACS Nano 2024; 18:9584-9604. [PMID: 38513119 DOI: 10.1021/acsnano.3c13038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Current cancer vaccines using T cell epitopes activate antitumor T cell immunity through dendritic cell/macrophage-mediated antigen presentation, but they lack the ability to promote B/CD4 T cell crosstalk, limiting their anticancer efficacy. We developed antigen-clustered nanovaccine (ACNVax) to achieve long-term tumor remission by promoting B/CD4 T cell crosstalk. The topographic features of ACNVax were achieved using an iron nanoparticle core attached with an optimal number of gold nanoparticles, where the clusters of HER2 B/CD4 T cell epitopes were conjugated on the gold surface with an optimal intercluster distance of 5-10 nm. ACNVax effectively trafficked to lymph nodes and cross-linked with BCR, which are essential for stimulating B cell antigen presentation-mediated B/CD4 T cell crosstalk in vitro and in vivo. ACNVax, combined with anti-PD-1, achieved long-term tumor remission (>200 days) with 80% complete response in mice with HER2+ breast cancer. ACNVax not only remodeled the tumor immune microenvironment but also induced a long-term immune memory, as evidenced by complete rejection of tumor rechallenge and a high level of antigen-specific memory B, CD4, and CD8 cells in mice (>200 days). This study provides a cancer vaccine design strategy, using B/CD4 T cell epitopes in an antigen clustered topography, to achieve long-term durable anticancer efficacy through promoting B/CD4 T cell crosstalk.
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Affiliation(s)
- Chengyi Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Ryan Clauson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Luke F Bugada
- Department of Chemical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Fang Ke
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Bing He
- Department of Computational Medicine & Bioinformatics, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Zhixin Yu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hongwei Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Binyamin Jacobovitz
- Microscopy Core, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hongxiang Hu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Polina Chuikov
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Brett Dallas Hill
- Department of Chemical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Syed M Rizvi
- Department of Chemical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yudong Song
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kai Sun
- Department of Materials Science and Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Pasieka Axenov
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Daniel Huynh
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Xinyi Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Lana Garmire
- Department of Computational Medicine & Bioinformatics, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yu Leo Lei
- Departments of Head and Neck Surgery, Cancer Biology, and Translational Molecular Pathology, the University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, United States
| | - Irina Grigorova
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Fei Wen
- Department of Chemical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Marilia Cascalho
- Department of Microbiology and Immunology, Medical School, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Wei Gao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Duxin Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
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Ke F, Benet ZL, Shelyakin P, Britanova OV, Gupta N, Dent AL, Moore BB, Grigorova IL. Targeted checkpoint control of B cells undergoing positive selection in germinal centers by follicular regulatory T cells. Proc Natl Acad Sci U S A 2024; 121:e2304020121. [PMID: 38261619 PMCID: PMC10835130 DOI: 10.1073/pnas.2304020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 11/20/2023] [Indexed: 01/25/2024] Open
Abstract
Follicular regulatory T cells (Tfr) can play opposite roles in the regulation of germinal center (GC) responses. Depending on the studies, Tfr suppress or support GC and B cell affinity maturation. However, which factors determine positive vs. negative effects of Tfr on the GC B cell is unclear. In this study, we show that GC centrocytes that express MYC up-regulate expression of CCL3 chemokine that is needed for both the positive and negative regulation of GC B cells by Tfr. B cell-intrinsic expression of CCL3 contributes to Tfr-dependent positive selection of foreign Ag-specific GC B cells. At the same time, expression of CCL3 is critical for direct Tfr-mediated suppression of GC B cells that acquire cognate to Tfr nuclear proteins. Our study suggests that CCR5 and CCR1 receptors promote Tfr migration to CCL3 and highlights Ccr5 expression on the Tfr subset that expresses Il10. Based on our findings and previous studies, we suggest a model of chemotactically targeted checkpoint control of B cells undergoing positive selection in GCs by Tfr, where Tfr directly probe and license foreign antigen-specific B cells to complete their positive selection in GCs but, at the same time, suppress GC B cells that present self-antigens cognate to Tfr.
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Affiliation(s)
- Fang Ke
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI48109
| | - Zachary L. Benet
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI48109
| | - Pavel Shelyakin
- Abu Dhabi Stem Cells Center, Abu Dhabi4600, United Arab Emirates
- Molecular Technologies Division, Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow117997, Russian Federation
| | - Olga V. Britanova
- Molecular Technologies Division, Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow117997, Russian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow117997, Russian Federation
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel24105, Germany
| | - Neetu Gupta
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH44195
| | - Alexander L. Dent
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN46123
| | - Bethany B. Moore
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI48109
- Department of Internal Medicine, Michigan Medicine University of Michigan, Ann Arbor, MI48109
| | - Irina L. Grigorova
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI48109
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Li Y, Han M, Singh S, Breckenridge HA, Kreger JE, Stroupe CC, Sawicky DA, Kuo S, Goldsmith AM, Ke F, Shenoy AT, Bentley JK, Matsumoto I, Hershenson MB. Tuft cells are required for a rhinovirus-induced asthma phenotype in immature mice. JCI Insight 2024; 9:e166136. [PMID: 38061015 PMCID: PMC10906234 DOI: 10.1172/jci.insight.166136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/05/2023] [Indexed: 01/17/2024] Open
Abstract
Infection of immature mice with rhinovirus (RV) induces an asthma-like phenotype consisting of type 2 inflammation, mucous metaplasia, eosinophilic inflammation, and airway hyperresponsiveness that is dependent on IL-25 and type 2 innate lymphoid cells (ILC2s). Doublecortin-like kinase 1-positive (DCLK1+) tuft cells are a major source of IL-25. We sought to determine the requirement of tuft cells for the RV-induced asthma phenotype in wild-type mice and mice deficient in Pou2f3, a transcription factor required for tuft cell development. C57BL/6J mice infected with RV-A1B on day 6 of life and RV-A2 on day 13 of life showed increased DCLK1+ tuft cells in the large airways. Compared with wild-type mice, RV-infected Pou2f3-/- mice showed reductions in IL-25 mRNA and protein expression, ILC2 expansion, type 2 cytokine expression, mucous metaplasia, lung eosinophils, and airway methacholine responsiveness. We conclude that airway tuft cells are required for the asthma phenotype observed in immature mice undergoing repeated RV infections. Furthermore, RV-induced tuft cell development provides a mechanism by which early-life viral infections could potentiate type 2 inflammatory responses to future infections.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Fang Ke
- Department of Microbiology and Immunology, and
| | - Anukul T. Shenoy
- Department of Microbiology and Immunology, and
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | | | | | - Marc B. Hershenson
- Department of Pediatrics
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan, USA
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5
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Vittal R, Walker NM, McLinden AP, Braeuer RR, Ke F, Fattahi F, Combs MP, Misumi K, Aoki Y, Wheeler DS, Wilke CA, Huang SK, Moore BB, Cao P, Lama VN. Genetic deficiency of the transcription factor NFAT1 confers protection against fibrogenic responses independent of immune influx. Am J Physiol Lung Cell Mol Physiol 2024; 326:L39-L51. [PMID: 37933452 DOI: 10.1152/ajplung.00045.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/08/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is marked by unremitting matrix deposition and architectural distortion. Multiple profibrotic pathways contribute to the persistent activation of mesenchymal cells (MCs) in fibrosis, highlighting the need to identify and target common signaling pathways. The transcription factor nuclear factor of activated T cells 1 (NFAT1) lies downstream of second messenger calcium signaling and has been recently shown to regulate key profibrotic mediator autotaxin (ATX) in lung MCs. Herein, we investigate the role of NFAT1 in regulating fibroproliferative responses during the development of lung fibrosis. Nfat1-/--deficient mice subjected to bleomycin injury demonstrated improved survival and protection from lung fibrosis and collagen deposition as compared with bleomycin-injured wild-type (WT) mice. Chimera mice, generated by reconstituting bone marrow cells from WT or Nfat1-/- mice into irradiated WT mice (WT→WT and Nfat1-/-→WT), demonstrated no difference in bleomycin-induced fibrosis, suggesting immune influx-independent fibroprotection in Nfat1-/- mice. Examination of lung tissue and flow sorted lineageneg/platelet-derived growth factor receptor alpha (PDGFRα)pos MCs demonstrated decreased MC numbers, proliferation [↓ cyclin D1 and 5-ethynyl-2'-deoxyuridine (EdU) incorporation], myofibroblast differentiation [↓ α-smooth muscle actin (α-SMA)], and survival (↓ Birc5) in Nfat1-/- mice. Nfat1 deficiency abrogated ATX expression in response to bleomycin in vivo and MCs derived from Nfat1-/- mice demonstrated decreased ATX expression and migration in vitro. Human IPF MCs demonstrated constitutive NFAT1 activation, and regulation of ATX in these cells by NFAT1 was confirmed using pharmacological and genetic inhibition. Our findings identify NFAT1 as a critical mediator of profibrotic processes, contributing to dysregulated lung remodeling and suggest its targeting in MCs as a potential therapeutic strategy in IPF.NEW & NOTEWORTHY Idiopathic pulmonary fibrosis (IPF) is a fatal disease with hallmarks of fibroblastic foci and exuberant matrix deposition, unknown etiology, and ineffective therapies. Several profibrotic/proinflammatory pathways are implicated in accelerating tissue remodeling toward a honeycombed end-stage disease. NFAT1 is a transcriptional factor activated in IPF tissues. Nfat1-deficient mice subjected to chronic injury are protected against fibrosis independent of immune influxes, with suppression of profibrotic mesenchymal phenotypes including proliferation, differentiation, resistance to apoptosis, and autotaxin-related migration.
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Affiliation(s)
- Ragini Vittal
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Emory University, Atlanta, Georgia, United States
| | - Natalie M Walker
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - A Patrick McLinden
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Emory University, Atlanta, Georgia, United States
| | - Russell R Braeuer
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Fang Ke
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Fatemeh Fattahi
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Michael P Combs
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Keizo Misumi
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Yoshiro Aoki
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - David S Wheeler
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Carol A Wilke
- Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan, United States
| | - Steven K Huang
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Bethany B Moore
- Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan, United States
| | - Pengxiu Cao
- Division of Pulmonary & Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Vibha N Lama
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Emory University, Atlanta, Georgia, United States
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Ke F, Gao S, Bai J, Wang K. Ultra-wide angle panoramic imaging system based on a multiplexed reflective surface. Appl Opt 2023; 62:6507-6517. [PMID: 37706845 DOI: 10.1364/ao.498251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/30/2023] [Indexed: 09/15/2023]
Abstract
We propose an ultra-wide angle panoramic imaging system based on a multiplexed reflective surface, which consists of a panoramic head unit (PHU) and the relay lens group. The multiplexed reflective surface is applied in the PHU to reflect light from glass and air for imaging, obtaining the front and rear view channels, respectively. With a field of view (FoV) of 360∘×(35∘-120∘) and an f-number of four, this system has good image quality and relative illumination in the FoV. In addition, it has loose tolerance requirements and a diameter ratio of 7.2, reducing the difficulty of manufacturing and assembly. This optical system architecture provides a promising solution for panoramic perception over a wider FoV.
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7
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Wu M, Lian N, Wu C, Wu X, Chen H, Lin C, Zhou S, Ke F. Metal-free visible-induced C(sp 2)-C(sp 2) coupling of quinoxalin-2( H)-ones via oxidative cleavage of the C-N bond. RSC Adv 2023; 13:18328-18331. [PMID: 37333794 PMCID: PMC10274563 DOI: 10.1039/d3ra03479h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023] Open
Abstract
A C(sp2)-C(sp2) reaction between aromatic hydrazines and quinoxalines has been developed through a photocatalytic system. The protocol is established for C(sp2)-N bond cleavage and direct C(sp2)-H functionalization for the coupling of C(sp2)-C(sp2) via photocatalysis under mild and ideal air conditions without the presence of a strong base and metal. The mechanistic studies reveal that the generation of a benzene radical via the oxidative cleavage of aromatic hydrazines for the cross-coupling of C(sp2)-C(sp2) with the assistance of a photocatalyst is essential. The process exhibits excellent compatibility with functional groups and provides convenient access to various 3-arylquinoxalin-2(1H)-ones in good to excellent yields.
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Affiliation(s)
- Mei Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Nancheng Lian
- Department of Spinal Surgery, The First Affiliated Hospital of Fujian Medical University Fuzhou 350005 China
| | - Cuimin Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Xinyao Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Houzheng Chen
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Chen Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
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Tang FT, Ji J, Ding J, Ke F, Xu H. [Cervical gastric-type adenocarcinomas with enteroblastoid characteristic: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:417-420. [PMID: 36973210 DOI: 10.3760/cma.j.cn112151-20221104-00919] [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: 03/29/2023]
Affiliation(s)
- F T Tang
- Department of Pathology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nɑnjinɡ 210029, China
| | - J Ji
- Department of Pathology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, China
| | - J Ding
- Department of Pathology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nɑnjinɡ 210029, China
| | - F Ke
- Department of Pathology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nɑnjinɡ 210029, China
| | - H Xu
- Department of Pathology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nɑnjinɡ 210029, China
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9
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Ke F, Benet ZL, Maz MP, Liu J, Dent AL, Kahlenberg JM, Grigorova IL. Germinal center B cells that acquire nuclear proteins are specifically suppressed by follicular regulatory T cells. eLife 2023; 12:e83908. [PMID: 36862132 PMCID: PMC9981149 DOI: 10.7554/elife.83908] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/10/2023] [Indexed: 03/03/2023] Open
Abstract
Follicular regulatory T cells (Tfr) restrict development of autoantibodies and autoimmunity while supporting high-affinity foreign antigen-specific humoral response. However, whether Tfr can directly repress germinal center (GC) B cells that acquire autoantigens is unclear. Moreover, TCR specificity of Tfr to self-antigens is not known. Our study suggests that nuclear proteins contain antigens specific to Tfr. Targeting of these proteins to antigen-specific B cells in mice triggers rapid accumulation of Tfr with immunosuppressive characteristics. Tfr then exert negative regulation of GC B cells with predominant inhibition of the nuclear protein-acquiring GC B cells, suggesting an important role of direct cognate Tfr-GC B cells interactions for the control of effector B cell response.
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Affiliation(s)
- Fang Ke
- Department of Microbiology and Immunology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Zachary L Benet
- Department of Microbiology and Immunology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Mitra P Maz
- Department of Internal Medicine, Division of Rheumatology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Jianhua Liu
- Department of Internal Medicine, Division of Rheumatology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Alexander L Dent
- Department of Microbiology and Immunology, Indiana University School of MedicineIndianapolisUnited States
| | - Joanne Michelle Kahlenberg
- Department of Internal Medicine, Division of Rheumatology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Irina L Grigorova
- Department of Microbiology and Immunology, University of Michigan–Ann ArborAnn ArborUnited States
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10
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Li Z, Tan M, Lian N, Ke F, Zhang F, Wang C, Zhang Z. A cyanine carbazole oxime fluorescent probe selectively detects hypochlorite in Hi5 cells and C. elegans. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154387] [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: 02/12/2023]
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Tu S, Tan M, Guo Y, Wu X, Li L, Li W, Pan W, Ke F. A big blue-shift phenanthroline fluorescent probe with for detecting hypochlorous acid in live cells. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154373] [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: 01/20/2023]
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12
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Fang F, Tan M, Zhang Y, Chen L, Chen H, Lin M, Ke F. Enhanced fluorescent probe with high selectivity and sensitivity to hypochlorous acid. Chem Pap 2022. [DOI: 10.1007/s11696-022-02604-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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13
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Wu M, Huang S, Hou H, Lin J, Lin M, Zhou S, Zheng Z, Sun W, Ke F. DIPEA-induced activation of OH - for the synthesis of amides via photocatalysis. RSC Adv 2022; 12:14724-14728. [PMID: 35702194 PMCID: PMC9109258 DOI: 10.1039/d2ra02107b] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/02/2022] [Indexed: 11/21/2022] Open
Abstract
The development of green protocols for photocatalysis where water acts as a nucleophile, induced by a weak organic base, is difficult to achieve in organic chemistry. Herein, an efficient light-mediated strategy for the synthesis of amides in which a weak organic base acts as a reductant to induce the formation of OH– from water under metal-free conditions is reported. A mechanistic study reveals that the generation of an N,N-diisopropylethylamine (DIPEA) radical via single electron transfer (SET), with the assistance of photocatalyst, that increases the nucleophilicity of the water molecules with respect to the cyanides is essential. Moreover, the removal rate of nitrile in wastewater can be as high as 83%, indicating that this strategy has excellent potential for nitrile degradation. Under weak organic base condition DIPEA as a reductant to increase the nucleophilicity of H2O an excellent potential system for nitrile degradation.![]()
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Affiliation(s)
- Mei Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sheng Huang
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Huiqing Hou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Jie Lin
- Department of VIP Dental Service, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 China
| | - Mei Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Zhiqiang Zheng
- Department of VIP Dental Service, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 China
| | - Weiming Sun
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
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14
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Ke F, Ren C, Zhai Z, Gao X, Wei J, Zhu Y, Zhi Y. LINC01234 regulates microRNA-27b-5p to induce the migration, invasion and self-renewal of ovarian cancer stem cells through targeting SIRT5. Cell Cycle 2022; 21:1020-1033. [PMID: 35230909 PMCID: PMC9037434 DOI: 10.1080/15384101.2022.2040282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
LINC01234 has been suggested to correlate with the survival of ovarian cancer (OS), but its role in the properties of OC stem cells (OCSCs) has been rarely described. We aim to investigate the effect of LINC01234 on the differentiation and self-renewal of OCSCs through adsorption of microRNA (miR)-27b-5p to target sirtuins 5 (SIRT5). Expression of LINC01234 and SIRT5 in OC and normal samples included in TCGA and GTEx was searched through the GEPIA2 database. Bioinformatics analysis was conducted to predict the relation of LINC01234, miR-27b-5p and SIRT5. Expression of LINC01234, miR-27b-5p and SIRT5 in OC tissues and cells was detected. OCSCs were cultured and identified. CD133+ OCSCs were introduced with related oligonucleotides or vectors of LINC01234 or miR-27b-5p and SIRT5 to figure out their roles in OCSCs progression and tumorigenesis in vivo. The interaction of miR-27b-5p with LINC01234 or SIRT5 was analyzed. Bioinformatics analysis suggested that LINC01234 was very likely to influence SIRT5 and regulate the development of OC through miR-27b-5p. Up-regulated LINC01234 exhibited in OC tissues and cells. Down-regulated LINC01234 or elevated miR-27b-5p suppressed OCSCs progression and tumorigenesis in vivo. LINC01234 could restore SIRT5 expression by binding to miR-27b-5p. Down-regulated miR-27b-5p reversed the effect of silenced LINC01234 on OCSCs development and tumorigenesis in vivo. Up-regulation of SIRT5 reduced the effects of elevated miR-27b-5p on OCSCs progression and tumorigenesis in vivo. LINC01234 regulates miR-27b-5p to induce the migration, invasion and self-renewal of OCSCs through targeting SIRT5.
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Affiliation(s)
- Fang Ke
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chenchen Ren
- Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China,CONTACT Chenchen Ren Department of Gynecology, The Third Affiliated Hospital of Zhengzhou University, No. 7 Kangfuqian Street, Erqi District, Zhengzhou, Henan, 450052, China
| | - Zihan Zhai
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou Henan, China
| | - Xiang Gao
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jing Wei
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuanhang Zhu
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yunxiao Zhi
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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15
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Ke F, Shen Z, Wu C, Zhang L, Dong R. The effects of moderate neuromuscular blockade combined with transverse abdominal plane block on surgical space conditions during laparoscopic colorectal surgery: a randomized clinical study. BMC Anesthesiol 2022; 22:94. [PMID: 35379189 PMCID: PMC8978431 DOI: 10.1186/s12871-022-01623-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 03/21/2022] [Indexed: 11/19/2022] Open
Abstract
Background Deep neuromuscular blockade may be beneficial on surgical space conditions during laparoscopic surgery. The effects of moderate neuromuscular blockade combined with transverse abdominal plane block (TAPB) on surgical space conditions during laparoscopic surgery have not been described. This work investigated whether the above combination is associated with similar surgical space conditions to those of deep neuromuscular blockade. Methods Eighty patients undergoing elective laparoscopic surgery for colorectal cancer were randomly divided into two groups. The intervention group was treated with moderate neuromuscular blockade (train-of-four (TOF) count between 1 and 3) combined with TAPB (M group), while the control group was treated with deep neuromuscular blockade (D group), with a TOF count of 0 and a post-tetanic count (PTC) ≥1. Both groups received the same anesthesia management. The distance between the sacral promontory and the umbilical skin during the operation was compared between the two groups. The surgeon scored the surgical space conditions according to a five-point ordinal scale. Patients’ pain scores were evaluated 8 h after the operation. Results The distance from the sacral promontory to the umbilical skin after pneumoperitoneum was similar between the D group and M group (16.03 ± 2.17 cm versus 16.37 ± 2.78 cm; P = 0.544). The 95% confidence intervals of the difference in the distance from the sacral promontory to the umbilical skin between the two groups were − 1.45–0.77 cm. According to the preset non-inferior standard of 1.5 cm, (− 1.45, ∞) completely fell within (− 1.50, ∞), and the non-inferior effect test was qualified. No significant difference was found in the surgical rating score between the two groups. The dosage of rocuronium in the group D was significantly higher than that in the group M (P < 0.01). The M group had significantly lower pain scores than the D group 8 h after the operation (P < 0.05). Conclusions Moderate neuromuscular blockade combined with TAPB applied to laparoscopic colorectal cancer surgery can provide surgical space conditions similar to those of deep neuromuscular blockade. In addition, it reduces the use of muscle relaxants, relieves postoperative pain within 4 h after operation, and shorten the extubation time and stay in PACU when neostigmine was used as muscle relaxant antagonist. Trial registration chictr.org.cn (ChiCTR2000034621), registered on July 12, 2020.
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Affiliation(s)
- Fang Ke
- Department of Anesthesiology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China
| | - Zijin Shen
- Department of Anesthesiology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China
| | - Cheng Wu
- Department of Health Statistics, Naval Medical University, Shanghai, 200433, China
| | - Lin Zhang
- Department of Anesthesiology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China
| | - Rong Dong
- Department of Anesthesiology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P.R. China.
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16
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Lin M, Lin A, Huang S, Liu T, Ke F, Qiu D, Lin X, Luo D. Development of a novel vector for
siRNA
Delivery based on Arginine Modified Polyvinylamine. POLYM INT 2022. [DOI: 10.1002/pi.6386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mei Lin
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Aizhu Lin
- Key Laboratory of Technical Evaluation of Fertility Regulation of Non Human Primate National Health Commission Fuzhou 350013 Fujian China
- Fujian Obstetrics and Gynecology Hospital Fuzhou 350012 Fujian China
| | - Sheng Huang
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Tianhui Liu
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Fang Ke
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Deshun Qiu
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Xuefeng Lin
- Department of Medicinal Chemistry, School of Pharmacy Fujian Medical University Fuzhou China
| | - Daoshu Luo
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences Fujian Medical University Fuzhou China
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17
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Meng C, Ke F, Xiao Y, Huang S, Duan Y, Liu G, Yu S, Fu Y, Peng J, Cheng J, Yin P. Effect of Cold Spells and Their Different Definitions on Mortality in Shenzhen, China. Front Public Health 2022; 9:817079. [PMID: 35141195 PMCID: PMC8818748 DOI: 10.3389/fpubh.2021.817079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/30/2021] [Indexed: 11/18/2022] Open
Abstract
A high premium has been put on researching the effects of cold spells because of their adverse influence on people's daily lives and health. The study aimed to find the most appropriate definition of the cold spell in Shenzhen and quantify the impact of cold spells on mortality. Based on the daily mortality data in Shenzhen from 2013 to 2017 and the meteorological and pollutant data from the same period, we quantified the effect of cold spells using eight different definitions in the framework of a distributed lag non-linear model with a quasi-Poisson distribution. In Shenzhen, low temperatures increase the risk of death more significantly than high temperatures (using the optimal temperature as the cut-off value). Comparing the quasi-Akaike information criterion value, attribution fraction (b-AF), and attribution number (b-AN) for all causes of deaths and non-accidental deaths, the optimal definition of the cold spell was defined as the threshold was 3rd percentile of the daily average temperature and duration for 3 or more consecutive days (all causes: b-AF = 2.31% [1.01–3.50%], b-AN = 650; non-accidental: b-AF = 1.92% [0.57–3.17%], b-AN = 471). For cardiovascular deaths, the best definition was the temperature threshold as the 3rd percentile of the daily average temperature with a duration of 4 consecutive days (cardiovascular: b-AF = 1.37% [0.05–2.51%], b-AN = 142). Based on the best definition in the model, mortality risk increased in cold spells, with a statistically significant lag effect occurring as early as the 4th day and the effect of a single day lasting for 6 days. The maximum cumulative effect occurred on the 14th day (all-cause: RR = 1.54 [95% CI, 1.20–1.98]; non-accidental: RR = 1.43 [95% CI, 1.11–1.84]; cardiovascular: RR = 1.58 [95% CI, 1.00–2.48]). The elderly and females were more susceptible to cold spells. Cold spells and their definitions were associated with an increased risk of death. The findings of this research provide information for establishing an early warning system, developing preventive measures, and protecting susceptible populations.
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Affiliation(s)
- Chengzhen Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Ke
- Children's Health Care Hospital, Wuhan, China
| | - Yao Xiao
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suli Huang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yanran Duan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Liu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shuyuan Yu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yingbin Fu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Ji Peng
- Shenzhen Center for Chronic Disease Control, Shenzhen, China
- *Correspondence: Ji Peng
| | - Jinquan Cheng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
- Jinquan Cheng
| | - Ping Yin
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Ping Yin
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18
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Hou H, Ma X, Ye Y, Wu M, Shi S, Zheng W, Lin M, Sun W, Ke F. Non-metal-mediated N-oxyl radical (TEMPO)-induced acceptorless dehydrogenation of N-heterocycles via electrocatalysis. RSC Adv 2022; 12:5483-5488. [PMID: 35425580 PMCID: PMC8981507 DOI: 10.1039/d1ra08919f] [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: 12/08/2021] [Accepted: 02/01/2022] [Indexed: 11/21/2022] Open
Abstract
The development of protocols for direct catalytic acceptorless dehydrogenation of N-heterocycles with metal-free catalysts holds the key to difficulties in green and sustainable chemistry. Herein, an N-oxyl radical (TEMPO) acting as an oxidant in combination with electrochemistry is used as a synthesis system under neutral conditions to produce N-heterocycles such as benzimidazole and quinazolinone. The key feature of this protocol is the utilization of the TEMPO system as an inexpensive and easy to handle radical surrogate that can effectively promote the dehydrogenation reaction. Mechanistic studies also suggest that oxidative TEMPOs redox catalytic cycle participates in the dehydrogenation of 2,3-dihydro heteroarenes. The development of protocols for direct catalytic acceptorless dehydrogenation of N-heterocycles with metal-free catalysts holds the key to difficulties in green and sustainable chemistry.![]()
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Affiliation(s)
- Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Yaling Ye
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Mei Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Sunjie Shi
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Wenhe Zheng
- The First Affiliated Hospital of Fujian Medical University, Fuzhou 350004, China
| | - Mei Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
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19
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Xu Y, Long Y, Ye R, Li Q, Ke F, Zhou X. Fe( iii)-catalysed selective C–N bond cleavage of N-phenylamides by an electrochemical method. RSC Adv 2022; 12:24217-24221. [PMID: 36128521 PMCID: PMC9403817 DOI: 10.1039/d2ra04709h] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/17/2022] [Indexed: 11/21/2022] Open
Abstract
An Fe(iii)-catalysed transformation of secondary N-phenyl substituted amides to primary amides by an electrochemical method is developed. Regioselective aryl C–H oxygenation occurs during the reaction, promoting selective C(phenyl)-N bond cleavage to form primary amides in yields of up to 92%. An Fe(iii)-catalysed transformation of secondary N-phenyl substituted amides to primary amides by an electrochemical method is developed.![]()
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Affiliation(s)
- Yiwen Xu
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu 610064, China
| | - Yang Long
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu 610064, China
| | - Runyou Ye
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu 610064, China
| | - Qiang Li
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu 610064, China
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, Wangjiang Road 29, Chengdu 610064, China
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20
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Hou H, Wang CS, Cheng X, Chen H, Sun WM, Zheng Z, Ke F. Visible light induced direct highly selective C-H functionalization of quinoxalin-2(1H)-one without orientating group. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01640k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple and efficient synthesis method using Eosin Y and KI as photocatalysts to facilitate the conversion of quinoxaline-2(1H)-one and phenylhydrazine hydrochloride compounds into corresponding 3-arylated quinoxaline-2(1H)-one with high selectivity...
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21
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Hu Y, Hou H, Yu L, Zhou S, Wu X, Sun W, Ke F. Electro-oxidative cyclization: access to quinazolinones via K 2S 2O 8 without transition metal catalyst and base. RSC Adv 2021; 11:31650-31655. [PMID: 35496883 PMCID: PMC9041726 DOI: 10.1039/d1ra05092c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/01/2021] [Accepted: 09/08/2021] [Indexed: 01/18/2023] Open
Abstract
A K2S2O8-promoted oxidative tandem cyclization of primary alcohols with 2-aminobenzamides to synthesize quinazolinones was successfully achieved under undivided electrolytic conditions without a transition metal and base. The key feature of this protocol is the utilization of K2S2O8 as an inexpensive and easy-to-handle radical surrogate that can effectively promote the reaction via a simple procedure, leading to the formation of nitrogen heterocycles via direct oxidative cyclization at room temperature in a one-pot procedure under constant current. Owing to the use of continuous-flow electrochemical setups, this green, mild and practical electrosynthesis features high efficiency and excellent functional group tolerance and is easy to scale up. A K2S2O8-promoted oxidative tandem cyclization of primary alcohols with 2-aminobenzamides to synthesize quinazolinones was successfully achieved under undivided electrolytic conditions without a transition metal and base.![]()
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Affiliation(s)
- Yongzhi Hu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Huiqing Hou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Ling Yu
- College of Chemistry and Chemical Engineering, Xingtai University Xingtai 054001 P. R. China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Xianghua Wu
- School of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 P. R. China
| | - Weiming Sun
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
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22
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Yang L, Zhuang Q, Wu M, Long H, Lin C, Lin M, Ke F. Electrochemical-induced hydroxylation of aryl halides in the presence of Et 3N in water. Org Biomol Chem 2021; 19:6417-6421. [PMID: 34236072 DOI: 10.1039/d1ob00931a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A thorough study of mild and environmentally friendly electrochemical-induced hydroxylation of aryl halides without a catalyst is presented. The best protocol consists of hydroxylation of different aryl iodides and aryl bromides by water solution in the presence of Et3N under air, affording the target phenols in good isolated yields. Moreover, aryl chlorides were successfully employed as substrates. This methodology also provides a direct pathway for the formation of deoxyphomalone, which displayed a significant anti-proliferation effect.
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Affiliation(s)
- Li Yang
- Faculty of Material and Chemical Engineering, Yibin University, Yibin 644000, China
| | - Qinglong Zhuang
- School of Stomatology, Fujian Medical University, Fuzhou 350122, China
| | - Mei Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350122, China.
| | - Hua Long
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350122, China.
| | - Chen Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350122, China.
| | - Mei Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350122, China.
| | - Fang Ke
- Faculty of Material and Chemical Engineering, Yibin University, Yibin 644000, China and Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350122, China.
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23
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Hou H, Ma X, Lin Y, Lin J, Sun W, Wang L, Xu X, Ke F. Electrochemical synthesis of quinazolinone via I 2-catalyzed tandem oxidation in aqueous solution. RSC Adv 2021; 11:17721-17726. [PMID: 35480173 PMCID: PMC9033184 DOI: 10.1039/d1ra02706a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 04/07/2021] [Accepted: 05/03/2021] [Indexed: 01/08/2023] Open
Abstract
The development of protocols for synthesizing quinazolinones using biocompatible catalysts in aqueous medium will help to resolve the difficulties of using green and sustainable chemistry for their synthesis. Herein, using I2 in coordination with electrochemical synthesis induced a C-H oxidation reaction which is reported when using water as the environmentally friendly solvent to access a broad range of quinazolinones at room temperature. The reaction mechanism strongly showed that I2 cooperates electrochemically promoted the oxidation of alcohols, then effectively cyclizing amides to various quinazolinones.
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Affiliation(s)
- Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Yingying Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Jin Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Lei Wang
- School of Science, Xuchang University Xuchang 461000 China
| | - Xiuzhi Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016.,Faculty of Material and Chemical Engineering, Yibin University Yibin 644000 China
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24
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Ke F, Benet Z, Grigorova IL. Dual role of CCL3 and follicular regulatory T cells in the control of germinal center response. The Journal of Immunology 2021. [DOI: 10.4049/jimmunol.206.supp.24.09] [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] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
Follicular regulatory T cells (Tfrs) have been reported to play multiple roles in the control of B cells response. They repress foreign antigen-specific germinal center (GC) B cells at the peak of GC response. At the same time, under some conditions they promote GC B cell cycling in IL-10 dependent fashion and ensure optimal affinity maturation. Our previous studies suggested that CCL3 produced by GC centrocytes (CCs) promoted their direct contacts with Tfr cells and negative regulation of GC B cells at the peak of GC response. However, which fraction of CCs upregulates CCL3 expression, which receptors on Tfrs may respond to CCL3, and the long-term effect of CCL3 on GCs has been unclear. Based on the single cell and bulk qPCR analysis we found that CCL3 is upregulated in about 10% of CCs that express Myc and are undergoing positive selection. qPCR and transwell analysis revealed expression and synergistic involvement of CCR5 and CCR1 chemokine receptors on Tfr cells in their chemotaxis to CCL3. Interestingly, both an adoptive transfer and mixed bone marrow chimeras models suggest that after the peak of GC response B cell-intrinsic production of CCL3 promotes their prolonged participation in GCs and B cell affinity maturation, as well as better memory and plasmablast response. We also showed that both the negative and positive regulation of GC B cells by CCL3 was dependent on the presence of Tregs. To summarize, our studies suggest that in addition to the role of CCL3 and Tregs in the modest repression of foreign antigen-specific B cells at the peak of GC response, it is also important for optimal selection of B cells in GCs. Further studies are underway to determine the role of Tfr cells specifically in the negative and positive CCL3-mediated regulation of GCs.
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Affiliation(s)
- Fang Ke
- 1University of Michigan, Department of Microbiology and Immunology
| | - Zachary Benet
- 1University of Michigan, Department of Microbiology and Immunology
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Yang L, Hou H, Li L, Wang J, Zhou S, Wu M, Ke F. Electrochemically induced synthesis of quinazolinones via cathode hydration of o-aminobenzonitriles in aqueous solutions. Org Biomol Chem 2021; 19:998-1003. [PMID: 33448270 DOI: 10.1039/d0ob02286a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient and practical electrochemically catalyzed transition metal-free process for the synthesis of substituted quinazolinones from simple and readily available o-aminobenzonitriles and aldehydes in water has been accomplished. I2/base and water play an unprecedented and vital role in the reaction. By electrochemically catalysed hydrolysis of o-aminobenzonitriles, the synthesis of quinazolinones with benzaldehyde was first proposed. The synthetic utility of this method was demonstrated by gram-scale operation, as well as the preparation of bioactive N-(2,5-dichlorophenyl)-6-(2,2,2-trifluoroethoxy) pteridin-4-amine, which enables straightforward, practical and environmentally benign quinazolinone formation.
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Affiliation(s)
- Li Yang
- College of Chemistry & Chemical Engineering, Yibin University, Yibin, Sichuan, China
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26
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Zhang F, Hou H, Xu X, Chen Z, Ke F. Visible-Light-Induced Preparation of Quinazolinones by Oxidation of Benzyl Alcohols in Water. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202007027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Hu Y, Ma X, Hou H, Sun W, Tu S, Wu M, Lin R, Xu X, Ke F. Electrochemical oxidative synthesis of 2-benzoylquinazolin-4(3 H)-one via C(sp 3)–H amination under metal-free conditions. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01230d] [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: 11/21/2022]
Abstract
An electrochemically induced C(sp3)–H amination of 2-aminobenzamides with ketones using TBAI as a catalyst was developed, and provided 2-benzoylquinazolin-4(3H)-ones under metal-free conditions.
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Affiliation(s)
- Yongzhi Hu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Shuqing Tu
- Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Mei Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Rongkun Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Xiuzhi Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou 350004, China
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28
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Chen D, Mei Y, Kim N, Lan G, Gan CL, Fan F, Zhang T, Xia Y, Wang L, Lin C, Ke F, Zhou XZ, Lu KP, Lee TH. Melatonin directly binds and inhibits death-associated protein kinase 1 function in Alzheimer's disease. J Pineal Res 2020; 69:e12665. [PMID: 32358852 PMCID: PMC7890046 DOI: 10.1111/jpi.12665] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 12/16/2019] [Revised: 04/02/2020] [Accepted: 04/24/2020] [Indexed: 12/25/2022]
Abstract
Death-associated protein kinase 1 (DAPK1) is upregulated in the brains of human Alzheimer's disease (AD) patients compared with normal subjects, and aberrant DAPK1 regulation is implicated in the development of AD. However, little is known about whether and how DAPK1 function is regulated in AD. Here, we identified melatonin as a critical regulator of DAPK1 levels and function. Melatonin significantly decreases DAPK1 expression in a post-transcriptional manner in neuronal cell lines and mouse primary cortical neurons. Moreover, melatonin directly binds to DAPK1 and promotes its ubiquitination, resulting in increased DAPK1 protein degradation through a proteasome-dependent pathway. Furthermore, in tau-overexpressing mouse brain slices, melatonin treatment and the inhibition of DAPK1 kinase activity synergistically decrease tau phosphorylation at multiple sites related to AD. In addition, melatonin and DAPK1 inhibitor dramatically accelerate neurite outgrowth and increase the assembly of microtubules. Mechanistically, melatonin-mediated DAPK1 degradation increases the activity of Pin1, a prolyl isomerase known to play a protective role against tau hyperphosphorylation and tau-related pathologies. Finally, elevated DAPK1 expression shows a strong correlation with the decrease in melatonin levels in human AD brains. Combined, these results suggest that DAPK1 regulation by melatonin is a novel mechanism that controls tau phosphorylation and function and offers new therapeutic options for treating human AD.
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Affiliation(s)
- Dongmei Chen
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yingxue Mei
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Nami Kim
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Guihua Lan
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Chen-Ling Gan
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
- Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Institute of Materia Medica, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China
| | - Fei Fan
- Fujian Provincial Key Laboratory of Neuroglia and Diseases, Laboratory of Pain Research, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
- Fujian Health College, Fuzhou, Fujian, China
| | - Tao Zhang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yongfang Xia
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Long Wang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Chun Lin
- Fujian Provincial Key Laboratory of Neuroglia and Diseases, Laboratory of Pain Research, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Fang Ke
- Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Institute of Materia Medica, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China
| | - Xiao Zhen Zhou
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Kun Ping Lu
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Tae Ho Lee
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
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Xu Y, Xu X, Wu B, Gan C, Lin X, Wang J, Ke F. Transition‐Metal‐Free, Visible‐Light‐Mediated
N
‐acylation: An Efficient Route to Amides in Water. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yiwen Xu
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Xiuzhi Xu
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Bin Wu
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Chenling Gan
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Xiaoyan Lin
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Jin Wang
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
| | - Fang Ke
- Institute of Materia Medica, School of PharmacyFujian Provincial Key Laboratory of Natural Medicine PharmacologyFujian Medical University Fuzhou 350122 China
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30
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Grigorova I, Ke F, Benet Z. Regulation of germinal center response by proinflammatory chemokine CCL3 and follicular regulatory T cells. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.71.15] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Follicular regulatory T cells (Tfrs) have been reported to play multiple roles in the control of B cell responses. Tfr repress foreign antigen-specific B cells and plasma cells at the peak of germinal center (GC) response. At the same time they promote GC B cell cycling in IL10-dependent fashion and support optimal affinity maturation. Ex vivo Tfrs can act directly on both Tfh and GC B cells. However, relative contribution of direct Tfr-mediated control of Tfh cells vs GC B cells in vivo has been unclear. Our previous work suggested that GC B cell-intrinsic production of proinflammatory chemokine CCL3 promoted direct GC B cell contacts with Tfr cells and was important for modest negative regulation of B cells at the peak of GC response. In this follow up study we have addressed the role of CCL3 in the long-term regulation of GCs. We have also assessed, which subset of GC B cells upregulates production of CCL3 and which receptors on Tfr cells may respond to this chemokine. We found that in addition to the role of CCL3 in the modest repression of foreign antigen-specific B cells at the peak of GC response, it was also important for longer-term participation of B cells in GCs. Both the negative and positive regulation of GC B cells by CCL3 was dependent on the presence of Tregs. We also found that only about 10% of GC centrocytes that were Myc-positive upregulated expression of CCL3 and that Tfr chemotaxis to CCL3 chemokine ex vivo was dependent on both CCR5 and CCR1 chemokine receptors. Further studies are underway to determine the role of Tfr cells in the negative and positive CCL3-mediated regulation of GCs.
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Affiliation(s)
- Irina Grigorova
- 1University of Michigan, Department of Microbiology and Immunology
| | - Fang Ke
- 1University of Michigan, Department of Microbiology and Immunology
| | - Zachary Benet
- 1University of Michigan, Department of Microbiology and Immunology
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31
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Yu NT, Ke F, Zhang QY. Andrias davidianus ranavirus 1R encoding a delayed-early protein promotes cell proliferation by driving cell cycle progression into S phase. Acta Virol 2020; 64:10-19. [PMID: 32180414 DOI: 10.4149/av_2020_102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Andrias davidianus ranavirus 1R (ADRV-1R), a core gene of the family Iridoviridae, is predicted to encode a viral transcription factor (vTF) since the protein contains a virus late transcription factor-3 like (VLTF3 like) domain. However, its characteristics and function are still unclear. In this study, the transcription and expression of ADRV-1R were investigated in Chinese giant salamander thymus cells (GSTCs). ADRV-1R transcription starts 6 hours post-infection (hpi), while the protein expression starts 8 hpi. Drug inhibition assay showed that the transcripts are inhibited by cycloheximide (CHX), a de novo protein synthesis inhibitor, indicating that ADRV-1R is a viral delayed-early (DE) gene. Subcellular localization showed that ADRV-1R is distributed in the cell nucleus and cytoplasm. The effect of ADRV-1R overexpression on cell proliferation and virus titer was analyzed. ADRV-1R overexpression significantly promoted the cell proliferation starting at day 2. Flow cytometry analysis further indicated that the protein promotes the GSTC cell cycle progression from G1 phase into S phase (G1/S transition). Moreover, ADRV-1R overexperession significantly increased ADRV titer in GSTCs. The virus titer was 6.3-6.9-fold higher at 36 hpi and further after than the control GSTC lines. These data showed that ADRV-1R is a delayed-early protein promoting cell proliferation and virus titers. Keywords: ranavirus; Andrias davidianus ranavirus; core gene; cell cycle; cell proliferations.
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32
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Xu X, Zhang F, Huang S, Zhang Z, Ke F. Visible-Light Promoted Hydroxylation of Aryl Halides under Mild Reaction Conditions in Neat Water. CHINESE J ORG CHEM 2020. [DOI: 10.6023/cjoc202005004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Lin M, Wu F, Liu T, Chen Z, Xu X, Ke F. Visible-Light Promoted Preparation of Benzimidazoles by Eosin Y Catalyzed Reaction of Benzonitrile Derivatives in Water. CHINESE J ORG CHEM 2020. [DOI: 10.6023/cjoc202004016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Turner JS, Ke F, Grigorova IL. B Cell Receptor Crosslinking Augments Germinal Center B Cell Selection when T Cell Help Is Limiting. Cell Rep 2019; 25:1395-1403.e4. [PMID: 30403996 DOI: 10.1016/j.celrep.2018.10.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 04/22/2018] [Revised: 08/24/2018] [Accepted: 10/11/2018] [Indexed: 10/27/2022] Open
Abstract
Antigen-dependent engagement of germinal center (GC) B cell receptors (BCRs) promotes antigen internalization and presentation for follicular helper T cells. However, whether BCR signaling is critical or synergistic with T cell help for GC B cell selection or differentiation is unclear. Here, by adapting an experimental approach that enables independent delivery of BCR-crosslinking antigen or T cell help to GC B cells in vivo, we showed that T cell help was sufficient to induce GC B cell expansion and plasmablast formation. However, although BCR crosslinking could not by itself promote GC B cell selection or differentiation, it could synergize with T cell help to enhance the GC and plasmablast responses when T cell help was limiting. These findings indicate that GC B cells can integrate variable inputs from T cell help and BCR signaling in vivo for an optimal process of selection and differentiation, critical for potent long-term humoral immunity.
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Affiliation(s)
- Jackson Steed Turner
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI 48109, USA
| | - Fang Ke
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI 48109, USA
| | - Irina Leonidovna Grigorova
- Department of Microbiology and Immunology, Michigan Medicine University of Michigan, Ann Arbor, MI 48109, USA.
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35
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Grigorova I, Benet Z, Ke F. Dissecting the role of proinflammatory chemokine CCL3 in the selection of germinal center B cells and in secondary antibody responses. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.121.15] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Expression of CCL3 and CCL4 chemokines is upregulated in B cells upon crosslinking of B cell receptors and in germinal center (GC) centrocytes. However, the role of these proinflammatory chemokines in B cell responses is still unclear. Single cell qPCR analysis suggests that only a small fraction of GC centrocytes upregulates expression of CCL3/4. While B cell-intrinsic production of CCL3 promotes B cell interactions and negative control by follicular regulatory T cells at the peak of GC response, at the later stages of GC response it promotes B cells selection. Consistent with that, secondary antibody responses in CCL3 knockout mice are reduced. Our findings suggest that CCL3 is involved into multifaceted regulation of GC responses. Analyses of the mechanisms promoting both the negative and positive regulation of GC B cells in CCL3-dependent fashion are underway. These studies should be important for dissecting the role of CCL3 in normal immune responses and in B cell-originated lymphomas, where CCL3/4 are often elevated.
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36
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Ke F, Zhang P, Lin C, Lin X, Xu J, Zhou X. Synthesis of benzimidazoles by CuI-catalyzed three-component reaction of 2-haloaniline, ammonia and aldehyde in water. Org Biomol Chem 2019; 16:8090-8094. [PMID: 30328461 DOI: 10.1039/c8ob02172d] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient copper-catalyzed three-component reaction of 2-haloaniline, ammonia and aldehyde for the synthesis of benzimidazoles with 1,10-phenanthroline as the ligand has been developed. A variety of substituted benzimidazole derivatives can be obtained in yields up to 95%.
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Affiliation(s)
- Fang Ke
- College of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
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37
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Xu Y, Zhang P, Liu C, Lin C, Lin X, Ke F. Nickel-Catalyzed Synthesis of Quinazolinone Derivatives in Polyethylene Glycol 200. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201808023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Ke F, Zhang P, Xu Y, Lin X, Lin J, Lin C, Xu J. Microwave-Assisted Nickel-Catalyzed Synthesis of Benzimidazoles: Ammonia as a Cheap and Nontoxic Nitrogen Source. Synlett 2018. [DOI: 10.1055/s-0037-1610843] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
An efficient and convenient Ni-catalyzed C–N bond formation for the synthesis of various benzimidazoles from various 2-haloanilines, aldehydes, and ammonia in a concise manner is reported. This protocol uses commercially available, nonhazardous, clean ammonia as a reaction partner instead of other nitrogen sources. Benzimidazoles, as the sole products, were obtained in high to excellent yields (up to 95%).
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Affiliation(s)
- Fang Ke
- College of Pharmacy, Fujian Medical University
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Ke F, Liu C, Zhang P, Xu J, Chen X. Efficient and selective microwave-assisted copper-catalyzed synthesis of quinazolinone derivatives in aqueous. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1533974] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Fang Ke
- College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Caiqin Liu
- College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Peng Zhang
- College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Jianhua Xu
- College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Xiaole Chen
- College of Pharmacy, Fujian Medical University, Fuzhou, China
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40
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Benet ZL, Marthi M, Ke F, Wu R, Turner JS, Gabayre JB, Ivanitskiy MI, Sethi SS, Grigorova IL. CCL3 Promotes Germinal Center B Cells Sampling by Follicular Regulatory T Cells in Murine Lymph Nodes. Front Immunol 2018; 9:2044. [PMID: 30271404 PMCID: PMC6146081 DOI: 10.3389/fimmu.2018.02044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 05/25/2018] [Accepted: 08/20/2018] [Indexed: 12/23/2022] Open
Abstract
Previous studies and our findings suggest upregulated expression of proinflammatory chemokines CCL3/4 in germinal center (GC) centrocytes. However, the role of CCL3/4 for centrocyte interactions with follicular T cells and regulation of humoral immunity is poorly understood. We found that CCL3 promotes chemotaxis of Tfr cells ex vivo. Two-photon imaging revealed that B cells-intrinsic production of CCL3 promotes their probing by follicular regulatory T cells (Tfr) within GCs of murine lymph nodes. Overall this study suggests that CCL3 facilitates direct interactions of foreign antigen-specific GC B cells and their negative regulation with Tfr cells in vivo.
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Affiliation(s)
- Zachary L Benet
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Matangi Marthi
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Fang Ke
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Rita Wu
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Jackson S Turner
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Jahan B Gabayre
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Michael I Ivanitskiy
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Sahil S Sethi
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Irina L Grigorova
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
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41
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Guo XL, Chu L, Ke F, Mu LL, Li Z, Cai JJ, Li HF, Hong DL. Recipient bone marrow assimilates the myeloid/lymphoid reconstitution of distinct fetal hematopoietic stem cells. Oncotarget 2017; 8:108981-108988. [PMID: 29312584 PMCID: PMC5752497 DOI: 10.18632/oncotarget.22479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 08/23/2017] [Indexed: 12/31/2022] Open
Abstract
The fetal liver (FL) is a source of hematopoietic stem and progenitor cells (HSPCs) for transplantation. However, whether FL-HSPCs collected at distinct developmental stages reconstitute similarly or differently in the recipient bone marrow (BM) remains undetermined. We examined this problem in a congeneic mouse transplantation model. We first analyzed the lineage components of FL from 12.5 days post-fertilization (dpf) to 18.5 dpf. The myeloid and lymphoid cells were dynamic in absolute number and ratio. The largest difference was between 12.5 and 16.5 dpf. The FL-HSPCs (Lin−CD150+CD48−) at these two time points were then respectively transplanted into the recipients. The difference in lineage reconstitution was undetectable at week 4 or 6 post-transplantation and afterward, indicating that the BM environment assimilated the transplanted cells. Profiling lineage-regulation genes of input and output HSPCs showed that the expression levels were much different in the former and almost the same in the engrafted HSPCs. Therefore, the recipient BM microenvironment could determine the developmental lineage-trends of FL-HSPCs.
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Affiliation(s)
- Xiao-Lin Guo
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Lei Chu
- Departments of Gynecology and Obstetrics, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Fang Ke
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Li-Li Mu
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Zhen Li
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Jie-Jing Cai
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Huai-Fang Li
- Departments of Gynecology and Obstetrics, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Deng-Li Hong
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
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Wang J, Yin MZ, Zhao KW, Ke F, Jin WJ, Guo XL, Liu TH, Liu XY, Gu H, Yu XM, Li Z, Mu LL, Hong DL, Chen J, Chen GQ. APC/C is essential for hematopoiesis and impaired in aplastic anemia. Oncotarget 2017; 8:63360-63369. [PMID: 28968996 PMCID: PMC5609928 DOI: 10.18632/oncotarget.18808] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 06/02/2017] [Indexed: 11/30/2022] Open
Abstract
Anaphase promoting complex/cyclosome (APC/C) is essential for cell cycle progression. Recently, its non-mitotic functions were also reported but less studied in several tissues including hematopoietic cells. Here, we developed an inducible Anapc2 (a core subunit of APC/C) knockout mice. The animals displayed a fatal bone marrow failure within 7 days after knockout induction. Their hematopoietic stem and progenitor cells (HSPCs) demonstrated a sharp decline and could form little colony. Further, the results of BrdU label-retaining cell assay showed that the dormant HPSCs lost rapidly. Analysis of cell cycle regulators, Skp2, P27, Cdk2, and Cyclin E1, suggested that these quiescent stem cells underwent a shift from quiescence to mitosis followed by apoptosis. We next detected Anapc2-expression in the CD34+ HSPCs of patients with aplastic anemia. CD34+ cells were markedly decreased in the bone marrow and Anapc2-expression in the residual CD34+ cells was undetectable, suggesting that APC/C was deficient and might have a relationship with the pathogenesis of aplastic anemia.
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Affiliation(s)
- Jia Wang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Min-Zhi Yin
- Department of Pathology, Shanghai Children's Medical Center, SJTU-SM, Shanghai, 200025, China
| | - Ke-Wen Zhao
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Fang Ke
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Wen-Jie Jin
- Department of Orthopaedics, Shanghai Ninth People's Hospital, SJTU-SM, Shanghai, 200025, China
| | - Xiao-Lin Guo
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Tian-Hui Liu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Xiao-Ye Liu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Hao Gu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Xiao-Min Yu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Zhen Li
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Li-Li Mu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Deng-Li Hong
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
| | - Jing Chen
- Key Laboratory of Pediatric Hematology and Oncology Ministry of Health, Department of Hematology and Oncology, Shanghai Children's Medical Center, SJTU-SM, Shanghai, 200127, China
| | - Guo-Qiang Chen
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China
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Liu Z, Bai J, Zhang L, Lou F, Ke F, Cai W, Wang H. Conditional knockout of microRNA-31 promotes the development of colitis associated cancer. Biochem Biophys Res Commun 2017; 490:62-68. [PMID: 28600172 DOI: 10.1016/j.bbrc.2017.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 05/16/2017] [Accepted: 06/05/2017] [Indexed: 02/04/2023]
Abstract
MicroRNA-31 (miR-31) is an evolutionarily conserved microRNA, and its biological function in colorectal cancer and other cancers is controversial. In this study, we identified the host gene of mouse miR-31 and found that miR-31 was over-expressed in both human colorectal cancer and mouse colon cancer models. We here developed a miR-31 conditional knockout mouse model that allows for colon epithelium specific deletion of miR-31 to investigate its functionality in colon cancer development. We demonstrated that mice with miR-31 conditional deletion resulted in more severe colitis-associated cancer than wild-type, and we further identified Wdr5 as an important target of miR-31.
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Affiliation(s)
- Zhaoyuan Liu
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jing Bai
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Lingyun Zhang
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Fangzhou Lou
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Fang Ke
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wei Cai
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Honglin Wang
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China; Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Zhu H, Lou F, Yin Q, Gao Y, Sun Y, Bai J, Xu Z, Liu Z, Cai W, Ke F, Zhang L, Zhou H, Wang H, Wang G, Chen X, Zhang H, Wang Z, Ginhoux F, Lu C, Su B, Wang H. RIG-I antiviral signaling drives interleukin-23 production and psoriasis-like skin disease. EMBO Mol Med 2017; 9:589-604. [PMID: 28377495 PMCID: PMC5412807 DOI: 10.15252/emmm.201607027] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 09/05/2016] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 11/09/2022] Open
Abstract
Retinoic acid inducible-gene I (RIG-I) functions as one of the major sensors of RNA viruses. DDX58, which encodes the RIG-I protein, has been newly identified as a susceptibility gene in psoriasis. Here, we show that the activation of RIG-I by 5'ppp-dsRNA, its synthetic ligand, directly causes the production of IL-23 and triggers psoriasis-like skin disease in mice. Repeated injections of IL-23 to the ears failed to induce IL-23 production and a full psoriasis-like skin phenotype, in either germ-free or RIG-I-deficient mice. RIG-I is also critical for a full development of skin inflammation in imiquimod (IMQ)-induced psoriasis-like mouse model. Furthermore, RIG-I-mediated endogenous IL-23 production was mainly confined to the CD11c+ dendritic cells (DCs) via nuclear factor-kappa B (NF-κB) signaling, and stimulated RIG-I expression in an auto-regulatory feedback loop. Thus, our data suggest that the dysregulation in the antiviral immune responses of hosts through the innate pattern recognition receptors may trigger the skin inflammatory conditions in the pathophysiology of psoriasis.
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Affiliation(s)
- Huiyuan Zhu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Fangzhou Lou
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Qianqian Yin
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Yuanyuan Gao
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Yang Sun
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Jing Bai
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Zhenyao Xu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Zhaoyuan Liu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Wei Cai
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Fang Ke
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Lingyun Zhang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Hong Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Hong Wang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Hongxin Zhang
- Research Centre for Experimental Medicine of Rujin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhugang Wang
- Research Centre for Experimental Medicine of Rujin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Chuanjian Lu
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bing Su
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Honglin Wang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
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Ke F, Zhang HB, Wang Y, Hou LF, Dong HJ, Wang ZF, Pan GW, Cao XY. Molecular cloning and characterization of a C-type lectin in yellow catfish Tachysurus fulvidraco. J Fish Biol 2016; 89:1692-1703. [PMID: 27418461 DOI: 10.1111/jfb.13080] [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: 03/06/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
This study represents the first report of a C-type lectin (ctl) in yellow catfish Tachysurus fulvidraco. The complete sequence of ctl complementary (c)DNA consisted of 685 nucleotides. The open reading frame potentially encoded a protein of 177 amino acids with a calculated molecular mass of c.y 20.204 kDa. The deduced amino-acid sequence contained a signal peptide and a single carbohydrate recognition domain with four cysteine residues and GlnProAsp (QPD) and TrpAsnAsp (WND) motifs. Ctl showed the highest identity (56.0%) to the predicted lactose binding lectin from channel catfish Ictalurus punctatus. Quantitative real-time (qrt)-PCR analysis showed that ctl messenger (m)RNA was constitutively expressed in all examined tissues in normal fish, with high expression in trunk kidney and head kidney, which was increased following Aeromonas hydrophila challenge in a duration-dependent manner. Purified recombinant Ctl (rCtl) from Escherichia coli BL21 was able to bind and agglutinate Gram-positive and Gram-negative bacteria in a calcium-dependent manner. These results suggested that Ctl might be a C-type lectin of T. fulvidraco involved in innate immune responses as receptors (PRR).
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Affiliation(s)
- F Ke
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - H B Zhang
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Y Wang
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - L F Hou
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - H J Dong
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Z F Wang
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - G W Pan
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - X Y Cao
- College of Life Sciences and Engineering, Henan University of Urban Construction, Pingdingshan, 467036, China
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Ke F, Zhang L, Liu Z, Yan S, Xu Z, Bai J, Zhu H, Lou F, Cai W, Sun Y, Gao Y, Wang H, Wang H. Soluble Tumor Necrosis Factor Receptor 1 Released by Skin-Derived Mesenchymal Stem Cells Is Critical for Inhibiting Th17 Cell Differentiation. Stem Cells Transl Med 2016; 5:301-13. [PMID: 26819253 DOI: 10.5966/sctm.2015-0179] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 11/23/2015] [Indexed: 12/29/2022] Open
Abstract
T helper 17 (Th17) cells play an important role in multiple sclerosis (MS) and its animal model experimental autoimmune encephalomyelitis (EAE). Th17 cell differentiation from naïve T cells can be induced in vitro by the cytokines transforming growth factor β1 and interleukin-6. However, it remains unclear whether other regulatory factors control the differentiation of Th17 cells. Mesenchymal stem cells (MSCs) have emerged as a promising candidate for inhibiting Th17 cell differentiation and autoimmune diseases. Despite the fact that several molecules have been linked to the immunomodulatory function of MSCs, many other key MSC-secreted regulators that are involved in inhibiting Th17 cell polarization are ill-defined. In this study, we demonstrated that the intraperitoneal administration of skin-derived MSCs (S-MSCs) substantially ameliorated the development of EAE in mice. We found that the proinflammatory cytokine tumor necrosis factor (TNF)-α, a key mediator in the pathophysiology of MS and EAE, was capable of promoting Th17 cell differentiation. Moreover, under inflammatory conditions, we demonstrated that S-MSCs produced high amounts of soluble TNF receptor 1 (sTNFR1), which binds TNF-α and antagonizes its function. Knockdown of sTNFR1 in S-MSCs decreased their inhibitory effect on Th17 cell differentiation ex vivo and in vivo. Thus, our data identified sTNFR1 and its target TNF-α as critical regulators for Th17 cell differentiation, suggesting a previously unrecognized mechanism for MSC therapy in Th17-mediated autoimmune diseases.
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MESH Headings
- Animals
- Cell Differentiation/genetics
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Gene Expression Regulation, Developmental
- Gene Knockdown Techniques
- Humans
- Interleukin-6/biosynthesis
- Interleukin-6/genetics
- Lymphocyte Activation
- Mesenchymal Stem Cells/metabolism
- Mice
- Multiple Sclerosis/genetics
- Multiple Sclerosis/pathology
- Receptors, Tumor Necrosis Factor, Type I/biosynthesis
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Th17 Cells/immunology
- Th17 Cells/metabolism
- Transforming Growth Factor beta1/biosynthesis
- Transforming Growth Factor beta1/genetics
- Tumor Necrosis Factor-alpha/biosynthesis
- Tumor Necrosis Factor-alpha/genetics
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Affiliation(s)
- Fang Ke
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Lingyun Zhang
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Zhaoyuan Liu
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Sha Yan
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Zhenyao Xu
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jing Bai
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Huiyuan Zhu
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Fangzhou Lou
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Wei Cai
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yang Sun
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yuanyuan Gao
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Hong Wang
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Honglin Wang
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Zhang N, Huang L, Tian J, Chen X, Ke F, Zheng M, Xu J, Wu L. A novel synthetic novobiocin analog, FM-Nov17, induces DNA damage in CML cells through generation of reactive oxygen species. Pharmacol Rep 2015; 68:423-8. [PMID: 26922548 DOI: 10.1016/j.pharep.2015.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 08/07/2015] [Revised: 10/14/2015] [Accepted: 11/02/2015] [Indexed: 01/14/2023]
Abstract
OBJECTIVES To investigate the cytotoxicity of FM-Nov17 against chronic myeloid leukemia (CML) cells, we explored its underlying mechanisms mediating the induction of DNA damage and apoptotic cell death by reactive oxygen species (ROS). METHODS MTT assays were used to measure the proliferation-inhibition ratio of K562 and K562/G01 cells. Flow cytometry (FCM) was used to test the level of extracellular ROS, DNA damage, cell cycle progression and apoptosis. Western blotting was used to verify the amount of protein. RESULTS FM-Nov17 significantly inhibited the proliferation of K562 cells, with an IC50 of 58.28±0.304μM, and K562/G01 cells, with an IC50 of 62.36±0.136μM. FM-Nov17 significantly stimulated the generation of intracellular ROS, followed by the induction of DNA damage and the activation of the ATM-p53-r-H2AX pathway and checkpoint-related signals Chk1/Chk2, which led to increased numbers of cells in the S and G2/M phases of the cell cycle. Furthermore, FM-Nov17 induced apoptotic cell death by decreasing mitochondrial membrane potential and activating caspase-3 and PARP. The above effects were all prevented by the ROS scavenger N-acetylcysteine. CONCLUSIONS FM-Nov17-induces DNA damage and mitochondria-dependent cellular apoptosis in CML cells. The process is mediated by the generation of ROS.
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Affiliation(s)
- Nanwen Zhang
- Dept. of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Institute of Materia Medica, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Fujian Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Lisen Huang
- Dept. of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Institute of Materia Medica, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Fujian Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Jue Tian
- Dept. of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Institute of Materia Medica, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Fujian Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Xianling Chen
- Fujian Institute of Hematology, Union Hospital, FMU, Fuzhou, PR China
| | - Fang Ke
- Department of Pharmacochemistry, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Ming Zheng
- Department of Anatomy, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Jianhua Xu
- Dept. of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Institute of Materia Medica, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Fujian Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China
| | - Lixian Wu
- Dept. of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Institute of Materia Medica, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China; Fujian Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, PR China.
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Zhang L, Ke F, Liu Z, Bai J, Liu J, Yan S, Xu Z, Lou F, Wang H, Zhu H, Sun Y, Cai W, Gao Y, Li Q, Yu XZ, Qian Y, Hua Z, Deng J, Li QJ, Wang H. MicroRNA-31 negatively regulates peripherally derived regulatory T-cell generation by repressing retinoic acid-inducible protein 3. Nat Commun 2015; 6:7639. [PMID: 26165721 PMCID: PMC4510656 DOI: 10.1038/ncomms8639] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [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: 02/17/2015] [Accepted: 05/27/2015] [Indexed: 01/18/2023] Open
Abstract
Peripherally derived regulatory T (pT(reg)) cell generation requires T-cell receptor (TCR) signalling and the cytokines TGF-β1 and IL-2. Here we show that TCR signalling induces the microRNA miR-31, which negatively regulates pT(reg)-cell generation. miR-31 conditional deletion results in enhanced induction of pT(reg) cells, and decreased severity of experimental autoimmune encephalomyelitis (EAE). Unexpectedly, we identify Gprc5a as a direct target of miR-31. Gprc5a is known as retinoic acid-inducible protein 3, and its deficiency leads to impaired pT(reg-)cell induction and increased EAE severity. By generating miR-31 and Gprc5a double knockout mice, we show that miR-31 promotes the development of EAE through inhibiting Gprc5a. Thus, our data identify miR-31 and its target Gprc5a as critical regulators for pT(reg)-cell generation, suggesting a previously unrecognized epigenetic mechanism for dysfunctional T(reg) cells in autoimmune diseases.
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Affiliation(s)
- Lingyun Zhang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Fang Ke
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Zhaoyuan Liu
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Jing Bai
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Jinlin Liu
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Sha Yan
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Zhenyao Xu
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Fangzhou Lou
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Hong Wang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Huiyuan Zhu
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Yang Sun
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Wei Cai
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Yuanyuan Gao
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Qun Li
- Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Xue-Zhong Yu
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina 29425, USA
| | - Youcun Qian
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Zichun Hua
- State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210093, China
| | - Jiong Deng
- Key Laboratory of Cell Differentiation and Apoptosis of Minister of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Qi-Jing Li
- Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Honglin Wang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China.,Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
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Ke F, Zhang L, Liu Z, Liu J, Yan S, Xu Z, Bai J, Zhu H, Lou F, Wang H, Shi Y, Jiang Y, Su B, Wang H. Autocrine interleukin-6 drives skin-derived mesenchymal stem cell trafficking via regulating voltage-gated Ca(2+) channels. Stem Cells 2015; 32:2799-810. [PMID: 24906203 DOI: 10.1002/stem.1763] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 04/01/2014] [Accepted: 04/09/2014] [Indexed: 12/13/2022]
Abstract
Mesenchymal stem cells (MSCs) have demonstrated promising therapeutic potential for a variety of diseases including autoimmune disorders. A fundamental requirement for MSC-mediated in vivo immunosuppression is their effective trafficking. However the mechanism underlying MSC trafficking remains elusive. Here we report that skin-derived MSCs (S-MSCs) secrete high levels of interleukin-6 (IL-6) in inflammatory conditions. Disruption of the il6 or its signaling transducer gp130 blocks voltage-gated calcium (Ca(2+) ) channels (VGCC) critically required for cell contraction involved in the sequential adhesion and de-adhesion events during S-MSC migration. Deletion of il6 gene leads to a severe defect in S-MSC's trafficking and immunosuppressive function in vivo. Thus, this unexpected requirement of autocrine IL-6 for activating Ca(2+) channels uncovers a previously unrecognized link between the IL-6 signaling and the VGCC and provides novel mechanistic insights for the trafficking and immunomodulatory activities of S-MSCs.
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Affiliation(s)
- Fang Ke
- Shanghai Institute of Immunology, Institute of Medical Sciences, Institute of Health Sciences, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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50
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Wu L, Chen X, Huang L, Tian J, Ke F, Xu J, Chen Y, Zheng M. A Novobiocin Derivative, XN4, Inhibits the Proliferation of Chronic Myeloid Leukemia Cells by Inducing Oxidative DNA Damage. PLoS One 2015; 10:e0123314. [PMID: 25928540 PMCID: PMC4415758 DOI: 10.1371/journal.pone.0123314] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 03/02/2015] [Indexed: 12/22/2022] Open
Abstract
XN4 might induce DNA damage and apoptotic cell death through reactive oxygen species (ROS). The inhibition of proliferation of K562 and K562/G01 cells was measured by MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide). The mRNA levels of NADPH oxidase 1-5 (Nox1-5) genes were evaluated by qRT-PCR. The levels of extracellular reactive oxygen species (ROS), DNA damage, apoptosis, and cell cycle progression were examined by flow cytometry (FCM). Protein levels were analyzed by immunoblotting. XN4 significantly inhibited the proliferation of K562 and K562/G01 cells, with IC50 values of 3.75±0.07 µM and 2.63±0.43 µM, respectively. XN4 significantly increased the levels of Nox4 and Nox5 mRNA, stimulating the generation of intracellular ROS, inducing DNA damage and activating ATM-γ-H2AX signaling, which increased the number of cells in the S and G2/M phase of the cell cycle. Subsequently, XN4 induced apoptotic cell death by activating caspase-3 and PARP. Moreover, the above effects were all reversed by the ROS scavenger N-acetylcysteine (NAC). Additionally, XN4 can induce apoptosis in progenitor/stem cells isolated from CML patients’ bone marrow. In conclusion, XN4-induced DNA damage and cell apoptosis in CML cells is mediated by the generation of ROS.
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Affiliation(s)
- Lixian Wu
- Department of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, P. R.China
- Institute of Materia Medica, FMU, Fuzhou, P. R.China
- Fuijan Key Laboratory of Natural Medicine pharmacology, FMU, Fuzhou, P. R.China
- * E-mail: (LW); (MZ)
| | - Xianling Chen
- Fujian Institute of Hematology, Union Hospital, FMU, Fuzhou, P. R.China
| | - Lisen Huang
- Department of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, P. R.China
- Institute of Materia Medica, FMU, Fuzhou, P. R.China
- Fuijan Key Laboratory of Natural Medicine pharmacology, FMU, Fuzhou, P. R.China
| | - Jue Tian
- Department of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, P. R.China
- Institute of Materia Medica, FMU, Fuzhou, P. R.China
- Fuijan Key Laboratory of Natural Medicine pharmacology, FMU, Fuzhou, P. R.China
| | - Fang Ke
- Department of Pharmacochemistry, School of Pharmacy, FMU, Fuzhou, P. R.China
| | - Jianhua Xu
- Department of Pharmacology, School of Pharmacy, Fujian Medical University (FMU), Fuzhou, P. R.China
- Institute of Materia Medica, FMU, Fuzhou, P. R.China
- Fuijan Key Laboratory of Natural Medicine pharmacology, FMU, Fuzhou, P. R.China
| | - Yuanzhong Chen
- Fujian Institute of Hematology, Union Hospital, FMU, Fuzhou, P. R.China
| | - Ming Zheng
- Department of Anatomy, School of Basic Medicine, FMU, Fuzhou, P. R.China
- * E-mail: (LW); (MZ)
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