1
|
Kiran S, Xue Y, Sarker DB, Li Y, Sang QXA. Feeder-free differentiation of human iPSCs into natural killer cells with cytotoxic potential against malignant brain rhabdoid tumor cells. Bioact Mater 2024; 36:301-316. [PMID: 38496035 PMCID: PMC10940949 DOI: 10.1016/j.bioactmat.2024.02.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024] Open
Abstract
Natural killer (NK) cells are cytotoxic immune cells that can eliminate target cells without prior stimulation. Human induced pluripotent stem cells (iPSCs) provide a robust source of NK cells for safe and effective cell-based immunotherapy against aggressive cancers. In this in vitro study, a feeder-free iPSC differentiation was performed to obtain iPSC-NK cells, and distinct maturational stages of iPSC-NK were characterized. Mature cells of CD56bright CD16bright phenotype showed upregulation of CD56, CD16, and NK cell activation markers NKG2D and NKp46 upon IL-15 exposure, while exposure to aggressive atypical teratoid/rhabdoid tumor (ATRT) cell lines enhanced NKG2D and NKp46 expression. Malignant cell exposure also increased CD107a degranulation markers and stimulated IFN-γ secretion in activated NK cells. CD56bright CD16bright iPSC-NK cells showed a ratio-dependent killing of ATRT cells, and the percentage lysis of CHLA-05-ATRT was higher than that of CHLA-02-ATRT. The iPSC-NK cells were also cytotoxic against other brain, kidney, and lung cancer cell lines. Further NK maturation yielded CD56-ve CD16bright cells, which lacked activation markers even after exposure to interleukins or ATRT cells - indicating diminished cytotoxicity. Generation and characterization of different NK phenotypes from iPSCs, coupled with their promising anti-tumor activity against ATRT in vitro, offer valuable insights into potential immunotherapeutic strategies for brain tumors.
Collapse
Affiliation(s)
- Sonia Kiran
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Yu Xue
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Drishty B. Sarker
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, 32310-6046, USA
- Institute of Molecular Biophysics, Florida State University, Tallahassee, FL, 32306-4380, USA
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
- Institute of Molecular Biophysics, Florida State University, Tallahassee, FL, 32306-4380, USA
| |
Collapse
|
2
|
Mao Y, Su X, Guo Q, Yao X, Zhao Q, Guo Y, Wang Y, Li X, Lu Y. Long non-coding RNA LINC00930 targeting miR-6792-3p/ZBTB16 regulates the proliferation and EMT of pancreatic cancer. BMC Cancer 2024; 24:638. [PMID: 38789960 PMCID: PMC11127394 DOI: 10.1186/s12885-024-12365-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Emerging evidence suggests the dysregulation of long non-coding RNAs (lncRNAs) involved in pancreatic cancer (PC). However, the function of LINC00930 in PC has not been elaborated. In this study, we found that LINC00930 was significantly down-regulated in PC cell lines and tissues, and associated with tumor size, lymphatic metastasis, TNM stage and poor prognosis. According to the bioinformatics database, the downregulation of LINC00930 was a common event in PC associated with prognosis and EMT. Overexpression of LINC00930 inhibited the aggressive cancer phenotypes including proliferation, metastasis and epithelial-mesenchymal transition (EMT) of PC in vitro and in vivo. Bioinformatics and dual-luciferase reporter assay indicated that miR-6792-3p could directly bind to LINC00930. Additionally, the Zinc finger and BTB domain containing 16 (ZBTB16) was significantly declined in PC, which was predicted to be the downstream gene of miR-6792-3p. MiR-6792-3p mimic rescued the decreased proliferation, metastasis and EMT caused by ZBTB16 in PC cells. The LINC00930/miR-6792-3p/ZBTB16 axis was associated with the malignant progression and process of PC. The relative expression of LINC00930 was negatively correlated with the expression of miR-6792-3p and was closely linked with ZBTB16 levels in PC. LINC00930 might serve as a potential prognostic biomarker and therapeutic target for PC.
Collapse
Affiliation(s)
- Yingqing Mao
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
- The Sixth People's Hospital of Nantong, Nantong, 226001, P. R. China
| | - Xian Su
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
- Department of Hepatobiliary Surgery, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, P. R. China
| | - Qingsong Guo
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
| | - Xihao Yao
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
| | - Qun Zhao
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
| | - Yibing Guo
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
| | - Yao Wang
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China
| | - Xiaohong Li
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China.
| | - Yuhua Lu
- Research Center of Clinical Medical, Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, P. R. China.
| |
Collapse
|
3
|
Yang Z, Liu L, Zhu Z, Hu Z, Liu B, Gong J, Jin Y, Luo J, Deng Y, Jin Y, Wang G, Yin Y. Tumor-Associated Monocytes Reprogram CD8 + T Cells into Central Memory-Like Cells with Potent Antitumor Effects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2304501. [PMID: 38386350 DOI: 10.1002/advs.202304501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 01/09/2024] [Indexed: 02/23/2024]
Abstract
CD8+ T cells are critical for host antitumor responses, whereas persistent antigenic stimulation and excessive inflammatory signals lead to T cell dysfunction or exhaustion. Increasing early memory T cells can improve T cell persistence and empower T cell-mediated tumor eradication, especially for adoptive cancer immunotherapy. Here, it is reported that tumor-associated monocytes (TAMos) are highly correlated with the accumulation of CD8+ memory T cells in human cancers. Further analysis identifies that TAMos selectively reprogram CD8+ T cells into T central memory-like (TCM-like) cells with enhanced recall responses. L-NMMA, a pan nitric oxide synthase inhibitor, can mitigate TAMo-mediated inhibition of T cell proliferation without affecting TCM-like cell generation. Moreover, the modified T cells by TAMo exposure and L-NMMA treatment exhibit long-term persistence and elicit superior antitumor effects in vivo. Mechanistically, the transmembrane protein CD300LG is involved in TAMo-mediated TCM-like cell polarization in a cell-cell contact-dependent manner. Thus, the terminally differentiated TAMo subset (CD300LGhighACElow) mainly contributes to TCM-like cell development. Taken together, these findings establish the significance of TAMos in boosting T-cell antitumor immunity.
Collapse
Affiliation(s)
- Zeliang Yang
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Liang Liu
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Zhenyu Zhu
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Zixi Hu
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Bowen Liu
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Jingjing Gong
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Yuan Jin
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Juan Luo
- Institute of Precision Medicine, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Yichen Deng
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Yan Jin
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Guangxi Wang
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Yuxin Yin
- Department of Pathology, Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
- Institute of Precision Medicine, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191, China
| |
Collapse
|
4
|
Dong D, Du Y, Fei X, Yang H, Li X, Yang X, Ma J, Huang S, Ma Z, Zheng J, Chan DW, Shi L, Li Y, Irving AT, Yuan X, Liu X, Ni P, Hu Y, Meng G, Peng Y, Sadler A, Xu D. Inflammasome activity is controlled by ZBTB16-dependent SUMOylation of ASC. Nat Commun 2023; 14:8465. [PMID: 38123560 PMCID: PMC10733316 DOI: 10.1038/s41467-023-43945-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Inflammasome activity is important for the immune response and is instrumental in numerous clinical conditions. Here we identify a mechanism that modulates the central Caspase-1 and NLR (Nod-like receptor) adaptor protein ASC (apoptosis-associated speck-like protein containing a CARD). We show that the function of ASC in assembling the inflammasome is controlled by its modification with SUMO (small ubiquitin-like modifier) and identify that the nuclear ZBTB16 (zinc-finger and BTB domain-containing protein 16) promotes this SUMOylation. The physiological significance of this activity is demonstrated through the reduction of acute inflammatory pathogenesis caused by a constitutive hyperactive inflammasome by ablating ZBTB16 in a mouse model of Muckle-Wells syndrome. Together our findings identify an further mechanism by which ZBTB16-dependent control of ASC SUMOylation assembles the inflammasome to promote this pro-inflammatory response.
Collapse
Affiliation(s)
- Danfeng Dong
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuzhang Du
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuefeng Fei
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Yang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofang Li
- Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, Shaanxi Province, 710003, China
| | - Xiaobao Yang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junrui Ma
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shu Huang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhihui Ma
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juanjuan Zheng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - David W Chan
- School of Medicine, The Chinese University of Hong Kong-Shenzhen, Shenzhen, China
| | - Liyun Shi
- Department of Microbiology and Immunology, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yunqi Li
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Aaron T Irving
- Department of Clinical Laboratory Studies, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Centre for Infection, Immunity &Cancer, Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Haining, China
| | - Xiangliang Yuan
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiangfan Liu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peihua Ni
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiqun Hu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guangxun Meng
- The Center for Microbes, Development and Health, CAS Key Laboratory of Molecular Virology & Immunology, Shanghai Institute of Immunity and Infection, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yibing Peng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Anthony Sadler
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, 27-31 Wright Street, Clayton, VIC, 3168, Australia.
- Department of Molecular and Translational Science, Monash University, Clayton, VIC, Australia.
| | - Dakang Xu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- College of Health Sciences and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
5
|
Silonov SA, Mokin YI, Nedelyaev EM, Smirnov EY, Kuznetsova IM, Turoverov KK, Uversky VN, Fonin AV. On the Prevalence and Roles of Proteins Undergoing Liquid-Liquid Phase Separation in the Biogenesis of PML-Bodies. Biomolecules 2023; 13:1805. [PMID: 38136675 PMCID: PMC10741438 DOI: 10.3390/biom13121805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
The formation and function of membrane-less organelles (MLOs) is one of the main driving forces in the molecular life of the cell. These processes are based on the separation of biopolymers into phases regulated by multiple specific and nonspecific inter- and intramolecular interactions. Among the realm of MLOs, a special place is taken by the promyelocytic leukemia nuclear bodies (PML-NBs or PML bodies), which are the intranuclear compartments involved in the regulation of cellular metabolism, transcription, the maintenance of genome stability, responses to viral infection, apoptosis, and tumor suppression. According to the accepted models, specific interactions, such as SUMO/SIM, the formation of disulfide bonds, etc., play a decisive role in the biogenesis of PML bodies. In this work, a number of bioinformatics approaches were used to study proteins found in the proteome of PML bodies for their tendency for spontaneous liquid-liquid phase separation (LLPS), which is usually caused by weak nonspecific interactions. A total of 205 proteins found in PML bodies have been identified. It has been suggested that UBC9, P53, HIPK2, and SUMO1 can be considered as the scaffold proteins of PML bodies. It was shown that more than half of the proteins in the analyzed proteome are capable of spontaneous LLPS, with 85% of the analyzed proteins being intrinsically disordered proteins (IDPs) and the remaining 15% being proteins with intrinsically disordered protein regions (IDPRs). About 44% of all proteins analyzed in this study contain SUMO binding sites and can potentially be SUMOylated. These data suggest that weak nonspecific interactions play a significantly larger role in the formation and biogenesis of PML bodies than previously expected.
Collapse
Affiliation(s)
- Sergey A. Silonov
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Yakov I. Mokin
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Eugene M. Nedelyaev
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Eugene Y. Smirnov
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Irina M. Kuznetsova
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Konstantin K. Turoverov
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| | - Vladimir N. Uversky
- Department of Molecular Medicine and USF Health Byrd Alzheimer’s Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA;
| | - Alexander V. Fonin
- Laboratory of Structural Dynamics, Stability and Folding of Proteins, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia; (S.A.S.); (Y.I.M.); (E.M.N.); (E.Y.S.); (I.M.K.); (K.K.T.)
| |
Collapse
|
6
|
Gómez-Carballa A, Albericio G, Montoto-Louzao J, Pérez P, Astorgano D, Rivero-Calle I, Martinón-Torres F, Esteban M, Salas A, García-Arriaza J. Lung transcriptomics of K18-hACE2 mice highlights mechanisms and genes involved in the MVA-S vaccine-mediated immune response and protection against SARS-CoV-2 infection. Antiviral Res 2023; 220:105760. [PMID: 37992765 DOI: 10.1016/j.antiviral.2023.105760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/12/2023] [Accepted: 11/16/2023] [Indexed: 11/24/2023]
Abstract
Unravelling the molecular mechanism of COVID-19 vaccines through transcriptomic pathways involved in the host response to SARS-CoV-2 infection is key to understand how vaccines work, and for the development of optimized COVID-19 vaccines that can prevent the emergence of SARS-CoV-2 variants of concern (VoCs) and future outbreaks. In this study, we investigated the effects of vaccination with a modified vaccinia virus Ankara (MVA)-based vector expressing the full-length SARS-CoV-2 spike protein (MVA-S) on the lung transcriptome from susceptible K18-hACE2 mice after SARS-CoV-2 infection. One dose of MVA-S regulated genes related to viral infection control, inflammation processes, T-cell response, cytokine production and IFN-γ signalling. Down-regulation of Rhcg and Tnfsf18 genes post-vaccination with one and two doses of MVA-S may represent a mechanism for controlling infection immunity and vaccine-induced protection. One dose of MVA-S provided partial protection with a distinct lung transcriptomic profile to healthy animals, while two doses of MVA-S fully protected against infection with a transcriptomic profile comparable to that of non-vaccinated healthy animals. This suggests that the MVA-S booster generates a robust and rapid antigen-specific immune response preventing virus infection. Notably, down-regulation of Atf3 and Zbtb16 genes in mice vaccinated with two doses of MVA-S may contribute to vaccine control of innate immune system and inflammation processes in the lungs during SARS-CoV-2 infection. This study shows host transcriptomic mechanisms likely involved in the MVA-S vaccine-mediated immune response against SARS-CoV-2 infection, which could help in improving vaccine dose assessment and developing novel, well-optimized SARS-CoV-2 vaccine candidates against prevalent or emerging VoCs.
Collapse
Affiliation(s)
- Alberto Gómez-Carballa
- Genetics, Vaccines and Infectious Diseases Research Group (Genvip), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain; Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Hospital Clínico Universitario de Santiago de Compostela (CHUS), Servicio Gallego de Salud (SERGAS), Santiago de Compostela, Galicia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Guillermo Albericio
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Julián Montoto-Louzao
- Genetics, Vaccines and Infectious Diseases Research Group (Genvip), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain; Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Hospital Clínico Universitario de Santiago de Compostela (CHUS), Servicio Gallego de Salud (SERGAS), Santiago de Compostela, Galicia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Patricia Pérez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Madrid, Spain
| | - David Astorgano
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Irene Rivero-Calle
- Genetics, Vaccines and Infectious Diseases Research Group (Genvip), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain; Translational Pediatrics and Infectious Diseases, Department of Pediatrics, Hospital Clínico Universitario de Santiago de Compostela (CHUS), Santiago de Compostela, Spain
| | - Federico Martinón-Torres
- Genetics, Vaccines and Infectious Diseases Research Group (Genvip), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain; Translational Pediatrics and Infectious Diseases, Department of Pediatrics, Hospital Clínico Universitario de Santiago de Compostela (CHUS), Santiago de Compostela, Spain
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Antonio Salas
- Genetics, Vaccines and Infectious Diseases Research Group (Genvip), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain; Unidade de Xenética, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPoB Research Group, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Hospital Clínico Universitario de Santiago de Compostela (CHUS), Servicio Gallego de Salud (SERGAS), Santiago de Compostela, Galicia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.
| | - Juan García-Arriaza
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Madrid, Spain.
| |
Collapse
|
7
|
Zou J, Tian S, Zhu Y, Cheng Y, Jiang M, Tu S, Jin M, Chen H, Zhou H. Prohibitin1 facilitates viral replication by impairing the RIG-I-like receptor signaling pathway. J Virol 2023; 97:e0092623. [PMID: 37754758 PMCID: PMC10617439 DOI: 10.1128/jvi.00926-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/07/2023] [Indexed: 09/28/2023] Open
Abstract
IMPORTANCE Type I interferon (IFN-I), produced by the innate immune system, plays an essential role in host antiviral responses. Proper regulation of IFN-I production is required for the host to balance immune responses and prevent superfluous inflammation. IFN regulatory factor 3 (IRF3) and subsequent sensors are activated by RNA virus infection to induce IFN-I production. Therefore, proper regulation of IRF3 serves as an important way to control innate immunity and viral replication. Here, we first identified Prohibitin1 (PHB1) as a negative regulator of host IFN-I innate immune responses. Mechanistically, PHB1 inhibited the nucleus import of IRF3 by impairing its binding with importin subunit alpha-1 and importin subunit alpha-5. Our study demonstrates the mechanism by which PHB1 facilitates the replication of multiple RNA viruses and provides insights into the negative regulation of host immune responses.
Collapse
Affiliation(s)
- Jiahui Zou
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shan Tian
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yinxing Zhu
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yanqing Cheng
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Meijun Jiang
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shaoyu Tu
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Meilin Jin
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Huanchun Chen
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, Hubei, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, China
| | - Hongbo Zhou
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
- Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, Hubei, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, China
| |
Collapse
|
8
|
Hu H, Sun N, Du H, He Y, Pan K, Liu X, Lu X, Wei J, Liao M, Duan C. Mouse promyelocytic leukemia zinc finger protein (PLZF) regulates hepatic lipid and glucose homeostasis dependent on SIRT1. Front Pharmacol 2022; 13:1039726. [PMID: 36438786 PMCID: PMC9684722 DOI: 10.3389/fphar.2022.1039726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/21/2022] [Indexed: 11/11/2022] Open
Abstract
Previous studies have demonstrated that promyelocytic leukemia zinc finger protein (PLZF) promotes the expression of gluconeogenic genes and hepatic glucose output, which leads to hyperglycemia. However, the role played by PLZF in regulating lipid metabolism is not known. In this study, we aimed to examine the function of PLZF in regulating hepatic lipid and glucose homeostasis and the underlying mechanisms. The expression of PLZF was determined in different mouse models with regard to non-alcoholic fatty liver disease (NAFLD). In the next step, adenoviruses that express PLZF (Ad-PLZF) or PLZF-specific shRNA (Ad-shPLZF) were utilized to alter PLZF expression in mouse livers and in primary hepatocytes. For the phenotype of the fatty liver, histologic and biochemical analyses of hepatic triglyceride (TG), serum TG and cholesterol levels were carried out. The underlying molecular mechanism for the regulation of lipid metabolism by PLZF was further explored using luciferase reporter gene assay and ChIP analysis. The results demonstrated that PLZF expression was upregulated in livers derived from ob/ob, db/db and diet-induced obesity (DIO) mice. Liver PLZF-overexpressing C57BL/6J mice showed fatty liver phenotype, liver inflammation, impaired glucose tolerance and insulin sensitivity. On the other hand, hepatic PLZF knockdown in db/db and DIO mice alleviated hepatic steatosis. Of note, we found that PLZF activates SREBP-1c gene transcription through binding directly to the promoter fragment of this gene, which would induce a repressor-to-activator conversion depending on its interaction with SIRT1 in the role played by PLZF in the transcription process through deacetylation. Thus, PLZF is identified as an essential regulator of hepatic lipid and glucose metabolism, where the modulation of its liver expression could open up a therapeutic path for treating NAFLD.
Collapse
Affiliation(s)
- Huiling Hu
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Nannan Sun
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Haiyan Du
- Department of Hepatology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Yuqing He
- Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Kunyi Pan
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiuli Liu
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiaoxia Lu
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jie Wei
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Jie Wei, ; Mianmian Liao, ; Chaohui Duan,
| | - Mianmian Liao
- Department of Hepatology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
- *Correspondence: Jie Wei, ; Mianmian Liao, ; Chaohui Duan,
| | - Chaohui Duan
- Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Jie Wei, ; Mianmian Liao, ; Chaohui Duan,
| |
Collapse
|
9
|
TMEΜ45B Interacts with Sindbis Virus Nsp1 and Nsp4 and Inhibits Viral Replication. J Virol 2022; 96:e0091922. [PMID: 35938871 PMCID: PMC9472651 DOI: 10.1128/jvi.00919-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Alphavirus infection induces the expression of type I interferons, which inhibit the viral replication by upregulating the expression of interferon-stimulated genes (ISGs). Identification and mechanistic studies of the antiviral ISGs help to better understand how the host controls viral infection and help to better understand the viral replication process. Here, we report that the ISG product TMEM45B inhibits the replication of Sindbis virus (SINV). TMEM45B is a transmembrane protein that was detected mainly in the trans-Golgi network, endosomes, and lysosomes but not obviously at the plasma membrane or endoplasmic reticulum. TMEM45B interacted with the viral nonstructural proteins Nsp1 and Nsp4 and inhibited the translation and promoted the degradation of SINV RNA. TMEM45B overexpression rendered the intracellular membrane-associated viral RNA sensitive to RNase treatment. In line with these results, the formation of cytopathic vacuoles (CPVs) was dramatically diminished in TMEM45B-expressing cells. TMEM45B also interacted with Nsp1 and Nsp4 of chikungunya virus (CHIKV), suggesting that it may also inhibit the replication of other alphaviruses. These findings identified TMEM45B as an antiviral factor against alphaviruses and help to better understand the process of the viral genome replication. IMPORTANCE Alphaviruses are positive-stranded RNA viruses with more than 30 members. Infection with Old World alphaviruses, which comprise some important human pathogens such as chikungunya virus and Ross River virus, rarely results in fatal diseases but can lead to high morbidity in humans. Infection with New World alphaviruses usually causes serious encephalitis but low morbidity in humans. Alphavirus infection induces the expression of type I interferons, which subsequently upregulate hundreds of interferon-stimulated genes. Identification and characterization of host antiviral factors help to better understand how the viruses can establish effective infection. Here, we identified TMEM45B as a novel interferon-stimulated antiviral factor against Sindbis virus, a prototype alphavirus. TMEM45B interacted with viral proteins Nsp1 and Nsp4, interfered with the interaction between Nsp1 and Nsp4, and inhibited the viral replication. These findings provide insights into the detailed process of the viral replication and help to better understand the virus-host interactions.
Collapse
|
10
|
Esposito S, D’Abrosca G, Antolak A, Pedone PV, Isernia C, Malgieri G. Host and Viral Zinc-Finger Proteins in COVID-19. Int J Mol Sci 2022; 23:ijms23073711. [PMID: 35409070 PMCID: PMC8998646 DOI: 10.3390/ijms23073711] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 01/08/2023] Open
Abstract
An unprecedented effort to tackle the ongoing COVID-19 pandemic has characterized the activity of the global scientific community over the last two years. Hundreds of published studies have focused on the comprehension of the immune response to the virus and on the definition of the functional role of SARS-CoV-2 proteins. Proteins containing zinc fingers, both belonging to SARS-CoV-2 or to the host, play critical roles in COVID-19 participating in antiviral defenses and regulation of viral life cycle. Differentially expressed zinc finger proteins and their distinct activities could thus be important in determining the severity of the disease and represent important targets for drug development. Therefore, we here review the mechanisms of action of host and viral zinc finger proteins in COVID-19 as a contribution to the comprehension of the disease and also highlight strategies for therapeutic developments.
Collapse
|
11
|
Kafai NM, Diamond MS, Fox JM. Distinct Cellular Tropism and Immune Responses to Alphavirus Infection. Annu Rev Immunol 2022; 40:615-649. [PMID: 35134315 DOI: 10.1146/annurev-immunol-101220-014952] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Alphaviruses are emerging and reemerging viruses that cause disease syndromes ranging from incapacitating arthritis to potentially fatal encephalitis. While infection by arthritogenic and encephalitic alphaviruses results in distinct clinical manifestations, both virus groups induce robust innate and adaptive immune responses. However, differences in cellular tropism, type I interferon induction, immune cell recruitment, and B and T cell responses result in differential disease progression and outcome. In this review, we discuss aspects of immune responses that contribute to protective or pathogenic outcomes after alphavirus infection. Expected final online publication date for the Annual Review of Immunology, Volume 40 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
Collapse
Affiliation(s)
- Natasha M Kafai
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA; , .,Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Michael S Diamond
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA; , .,Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, USA.,Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, Missouri, USA.,Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Julie M Fox
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA;
| |
Collapse
|
12
|
Wang G, Zheng C. Zinc finger proteins in the host-virus interplay: multifaceted functions based on their nucleic acid-binding property. FEMS Microbiol Rev 2021; 45:fuaa059. [PMID: 33175962 DOI: 10.1093/femsre/fuaa059] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/07/2020] [Indexed: 12/14/2022] Open
Abstract
Zinc finger proteins (ZFPs) are a huge family comprised of massive, structurally diverse proteins characterized by zinc ion coordinating. They engage in the host-virus interplay in-depth and occupy a significant portion of the host antiviral arsenal. Nucleic acid-binding is the basic property of certain ZFPs, which draws increasing attention due to their immense influence on viral infections. ZFPs exert multiple roles on the viral replications and host cell transcription profiles by recognizing viral genomes and host mRNAs. Their roles could be either antiviral or proviral and were separately discussed. Our review covers the recent research progress and provides a comprehensive understanding of ZFPs in antiviral immunity based on their DNA/RNA binding property.
Collapse
Affiliation(s)
- Guanming Wang
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, No.1 Xue Yuan Road, University Town, FuZhou Fujian, 350108, China
| | - Chunfu Zheng
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, No.1 Xue Yuan Road, University Town, FuZhou Fujian, 350108, China
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta, Canada, AB T2N 4N1
| |
Collapse
|
13
|
Qin S, Xu W, Wang C, Jiang S, Dai W, Yang Y, Shen J, Jin P, Ma F, Xia X. Analyzing master regulators and scRNA-seq of COVID-19 patients reveals an underlying anti-SARS-CoV-2 mechanism of ZNF proteins. Brief Bioinform 2021; 22:6255371. [PMID: 33907801 PMCID: PMC8135462 DOI: 10.1093/bib/bbab118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 02/14/2021] [Accepted: 03/13/2021] [Indexed: 12/23/2022] Open
Abstract
Studies have demonstrated that both mortality and severe illness rates exist significant difference in different gender COVID-19 patients, but the reasons are still very mysterious to date. Here, we firstly find that the survival outcome of female patients is better to male patients through analyzing the 3044 COVID-19 cases. Secondly, we identify many important master regulators [e.g. STAT1/STAT2 and zinc finger (ZNF) proteins], in particular female patients can express more ZNF proteins and stronger transcriptional activities than male patients in response to SARS-CoV-2 infection. Thirdly, we discover that ZNF protein activity is significantly negative correlation with the SARS-CoV-2 load of COVID-19 patients, and ZNF proteins as transcription factors can also activate their target genes to participate in anti-SARS-CoV-2 infection. Fourthly, we demonstrate that ZNF protein activity is positive correlation with the abundance of multiple immune cells of COVID-19 patients, implying that the highly ZNF protein activity might promote the abundance and the antiviral activity of multiple immune cells to effectively suppress SARS-CoV-2 infection. Taken together, our study proposes an underlying anti-SARS-COV-2 role of ZNF proteins, and differences in the amount and activity of ZNF proteins might be responsible for the distinct prognosis of different gender COVID-19 patients.
Collapse
Affiliation(s)
- Shijie Qin
- Comparative Genomics and Bioinformatics Laboratory of the College of Life Sciences, Nanjing Normal University, China
| | - Weijun Xu
- COVID-19 Research Center, Institute of laboratory medicine, Jinling Hospital, Nanjing University School of medicine, the first school of clinical medicine, Southern Medical University, China
| | - Canbiao Wang
- Comparative Genomics and Bioinformatics Laboratory of the College of Life Sciences, Nanjing Normal University, China
| | - Sizhu Jiang
- College of Arts and Sciences, Emory University, Atlanta, USA
| | - Wei Dai
- COVID-19 Research Center, Institute of laboratory medicine, Jinling Hospital, Nanjing University School of medicine, the first school of clinical medicine, Southern Medical University, China
| | - Yang Yang
- COVID-19 Research Center, Institute of laboratory medicine, Jinling Hospital, Nanjing University School of medicine, the first school of clinical medicine, Southern Medical University, China
| | - Jiawei Shen
- COVID-19 Research Center, Institute of laboratory medicine, Jinling Hospital, Nanjing University School of medicine, the first school of clinical medicine, Southern Medical University, China
| | - Ping Jin
- Laboratory of Comparative Genomics and Bioinformatics, School of Life Sciences, Nanjing Normal University, China
| | - Fei Ma
- Laboratory of Comparative Genomics and Bioinformatics at the School of Life Sciences, Nanjing Normal University, China
| | - Xinyi Xia
- COVID-19 Research Center, Institute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine; Nanjing Clinical College of Southern Medical University, Nanjing, China
| |
Collapse
|
14
|
Wei YD, Du XM, Yang DH, Ma FL, Yu XW, Zhang MF, Li N, Peng S, Liao MZ, Li GP, Bai CL, Liu WS, Hua JL. Dmrt1 regulates the immune response by repressing the TLR4 signaling pathway in goat male germline stem cells. Zool Res 2021; 42:14-27. [PMID: 33420764 PMCID: PMC7840460 DOI: 10.24272/j.issn.2095-8137.2020.186] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Double sex and mab-3-related transcription factor 1 (Dmrt1), which is expressed in goat male germline stem cells (mGSCs) and Sertoli cells, is one of the most conserved transcription factors involved in sex determination. In this study, we highlighted the role of Dmrt1 in balancing the innate immune response in goat mGSCs. Dmrt1 recruited promyelocytic leukemia zinc finger (Plzf), also known as zinc finger and BTB domain-containing protein 16 (Zbtb16), to repress the Toll-like receptor 4 (TLR4)-dependent inflammatory signaling pathway and nuclear factor (NF)-κB. Knockdown of Dmrt1 in seminiferous tubules resulted in widespread degeneration of germ and somatic cells, while the expression of proinflammatory factors were significantly enhanced. We also demonstrated that Dmrt1 stimulated proliferation of mGSCs, but repressed apoptosis caused by the immune response. Thus, Dmrt1 is sufficient to reduce inflammation in the testes, thereby establishing the stability of spermatogenesis and the testicular microenvironment.
Collapse
Affiliation(s)
- Yu-Dong Wei
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Xiao-Min Du
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Dong-Hui Yang
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Fang-Lin Ma
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Xiu-Wei Yu
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Meng-Fei Zhang
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Na Li
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Sha Peng
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China
| | - Ming-Zhi Liao
- College of Life Sciences, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Guang-Peng Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
| | - Chun-Ling Bai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China. E-mail:
| | - Wei-Shuai Liu
- Department of Pathology, Yangling Demonstration Zone Hospital, Yangling Shaanxi 712100, China. E-mail:
| | - Jin-Lian Hua
- College of Veterinary Medicine, Northwest A & F University, Shaanxi Centre of Stem Cells Engineering & Technology, Yangling, Shaanxi 712100, China. E-mail:
| |
Collapse
|
15
|
Yamanaka S, Murai H, Saito D, Abe G, Tokunaga E, Iwasaki T, Takahashi H, Takeda H, Suzuki T, Shibata N, Tamura K, Sawasaki T. Thalidomide and its metabolite 5-hydroxythalidomide induce teratogenicity via the cereblon neosubstrate PLZF. EMBO J 2021; 40:e105375. [PMID: 33470442 PMCID: PMC7883055 DOI: 10.15252/embj.2020105375] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 11/17/2020] [Accepted: 11/30/2020] [Indexed: 12/17/2022] Open
Abstract
Thalidomide causes teratogenic effects by inducing protein degradation via cereblon (CRBN)‐containing ubiquitin ligase and modification of its substrate specificity. Human P450 cytochromes convert thalidomide into two monohydroxylated metabolites that are considered to contribute to thalidomide effects, through mechanisms that remain unclear. Here, we report that promyelocytic leukaemia zinc finger (PLZF)/ZBTB16 is a CRBN target protein whose degradation is involved in thalidomide‐ and 5‐hydroxythalidomide‐induced teratogenicity. Using a human transcription factor protein array produced in a wheat cell‐free protein synthesis system, PLZF was identified as a thalidomide‐dependent CRBN substrate. PLZF is degraded by the ubiquitin ligase CRL4CRBN in complex with thalidomide, its derivatives or 5‐hydroxythalidomide in a manner dependent on the conserved first and third zinc finger domains of PLZF. Surprisingly, thalidomide and 5‐hydroxythalidomide confer distinctly different substrate specificities to mouse and chicken CRBN, and both compounds cause teratogenic phenotypes in chicken embryos. Consistently, knockdown of Plzf induces short bone formation in chicken limbs. Most importantly, degradation of PLZF protein, but not of the known thalidomide‐dependent CRBN substrate SALL4, was induced by thalidomide or 5‐hydroxythalidomide treatment in chicken embryos. Furthermore, PLZF overexpression partially rescued the thalidomide‐induced phenotypes. Our findings implicate PLZF as an important thalidomide‐induced CRBN neosubstrate involved in thalidomide teratogenicity.
Collapse
Affiliation(s)
- Satoshi Yamanaka
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Hidetaka Murai
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Daisuke Saito
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Gembu Abe
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Nagoya, Japan
| | - Takahiro Iwasaki
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Hirotaka Takahashi
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Hiroyuki Takeda
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| | - Takayuki Suzuki
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Nagoya, Japan
| | - Koji Tamura
- Department of Ecological Developmental Adaptability Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, Japan
| |
Collapse
|
16
|
Joyce S, Okoye GD, Van Kaer L. Natural Killer T Lymphocytes Integrate Innate Sensory Information and Relay Context to Effector Immune Responses. Crit Rev Immunol 2021; 41:55-88. [PMID: 35381143 PMCID: PMC11078124 DOI: 10.1615/critrevimmunol.2021040076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
It is now appreciated that a group of lymphoid lineage cells, collectively called innate-like effector lymphocytes, have evolved to integrate information relayed by the innate sensory immune system about the state of the local tissue environment and to pass on this context to downstream effector innate and adaptive immune responses. Thereby, innate functions engrained into such innate-like lymphoid lineage cells during development can control the quality and magnitude of an immune response to a tissue-altering pathogen and facilitate the formation of memory engrams within the immune system. These goals are accomplished by the innate lymphoid cells that lack antigen-specific receptors, γδ T cell receptor (TCR)-expressing T cells, and several αβ TCR-expressing T cell subsets-such as natural killer T cells, mucosal-associated invariant T cells, et cetera. Whilst we briefly consider the commonalities in the origins and functions of these diverse lymphoid subsets to provide context, the primary topic of this review is to discuss how the semi-invariant natural killer T cells got this way in evolution through lineage commitment and onward ontogeny. What emerges from this discourse is the question: Has a "limbic immune system" emerged (screaming quietly in plain sight!) out of what has been dubbed "in-betweeners"?
Collapse
Affiliation(s)
- Sebastian Joyce
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| | - Gosife Donald Okoye
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
- Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA
| | - Luc Van Kaer
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| |
Collapse
|
17
|
Wu J, Chi H, Fu Y, Cao A, Shi J, Zhu M, Zhang L, Hua D, Huang J. The antiviral protein viperin interacts with the viral N protein to inhibit proliferation of porcine epidemic diarrhea virus. Arch Virol 2020; 165:2279-2289. [PMID: 32719955 PMCID: PMC7382991 DOI: 10.1007/s00705-020-04747-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
In the early stage of virus infection, the pattern recognition receptor (PRR) signaling pathway of the host cell is activated to induce interferon production, activating interferon-stimulated genes (ISGs) that encode antiviral proteins that exert antiviral effects. Viperin is one of the innate antiviral proteins that exert broad-spectrum antiviral effects by various mechanisms. Porcine epidemic diarrhea virus (PEDV) is a coronavirus that causes huge losses to the pig industry. Research on early antiviral responses in the gastrointestinal tract is essential for developing strategies to prevent the spread of PEDV. In this study, we investigated the mechanisms of viperin in PEDV-infected IPEJ-C2 cells. Increased expression of interferon and viperin and decreased replication of PEDV with a clear reduction in the viral load were observed in PEDV-infected IPEC-J2 cells. Amino acids 1-50 of porcine viperin contain an endoplasmic reticulum signal sequence that allows viperin to be anchored to the endoplasmic reticulum and are necessary for its function in inhibiting PEDV proliferation. The interaction of the viperin S-adenosylmethionine domain with the N protein of PEDV was confirmed via confocal laser scanning microscopy and co-immunoprecipitation. This interaction might interfere with viral replication or assembly to reduce virus proliferation. Our results highlight a potential mechanism whereby viperin is able to inhibit PEDV replication and play an antiviral role in innate immunity.
Collapse
Affiliation(s)
- Jiaqi Wu
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Heng Chi
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Yali Fu
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Aiping Cao
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Jingxuan Shi
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Min Zhu
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Lilin Zhang
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Deping Hua
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, 300072, China.
| |
Collapse
|
18
|
Rivera-Serrano EE, Gizzi AS, Arnold JJ, Grove TL, Almo SC, Cameron CE. Viperin Reveals Its True Function. Annu Rev Virol 2020; 7:421-446. [PMID: 32603630 DOI: 10.1146/annurev-virology-011720-095930] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Most cells respond to viral infections by activating innate immune pathways that lead to the induction of antiviral restriction factors. One such factor, viperin, was discovered almost two decades ago based on its induction during viral infection. Since then, viperin has been shown to possess activity against numerous viruses via multiple proposed mechanisms. Most recently, however, viperin was demonstrated to catalyze the conversion of cytidine triphosphate (CTP) to 3'-deoxy-3',4'-didehydro-CTP (ddhCTP), a previously unknown ribonucleotide. Incorporation of ddhCTP causes premature termination of RNA synthesis by the RNA-dependent RNA polymerase of some viruses. To date, production of ddhCTP by viperin represents the only activity of viperin that links its enzymatic activity directly to an antiviral mechanism in human cells. This review examines the multiple antiviral mechanisms and biological functions attributed to viperin.
Collapse
Affiliation(s)
- Efraín E Rivera-Serrano
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA;
| | - Anthony S Gizzi
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA; , .,Department of Pharmacology, Johns Hopkins University, Baltimore, Maryland 21205, USA
| | - Jamie J Arnold
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA;
| | - Tyler L Grove
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA; ,
| | - Steven C Almo
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA; ,
| | - Craig E Cameron
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA;
| |
Collapse
|
19
|
The oncogene BCL6 is up-regulated in glioblastoma in response to DNA damage, and drives survival after therapy. PLoS One 2020; 15:e0231470. [PMID: 32320427 PMCID: PMC7176076 DOI: 10.1371/journal.pone.0231470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 03/24/2020] [Indexed: 12/26/2022] Open
Abstract
The prognosis for people with the high-grade brain tumor glioblastoma is very poor, due largely to low cell death in response to genotoxic therapy. The transcription factor BCL6, a protein that normally suppresses the DNA damage response during immune cell maturation, and a known driver of B-cell lymphoma, was shown to mediate the survival of glioblastoma cells. Expression was observed in glioblastoma tumor specimens and cell lines. When BCL6 expression or activity was reduced in these lines, increased apoptosis and a profound loss of proliferation was observed, consistent with gene expression signatures suggestive of anti-apoptotic and pro-survival signaling role for BCL6 in glioblastoma. Further, treatment with the standard therapies for glioblastoma—ionizing radiation and temozolomide—both induced BCL6 expression in vitro, and an in vivo orthotopic animal model of glioblastoma. Importantly, inhibition of BCL6 in combination with genotoxic therapies enhanced the therapeutic effect. Together these data demonstrate that BCL6 is an active transcription factor in glioblastoma, that it drives survival of cells, and that it increased with DNA damage, which increased the survival rate of therapy-treated cells. This makes BCL6 an excellent therapeutic target in glioblastoma—by increasing sensitivity to standard DNA damaging therapy, BCL6 inhibitors have real potential to improve the outcome for people with this disease.
Collapse
|
20
|
Abstract
Flaviviruses are a genus of mostly arthropod-borne RNA viruses that cause a range of pathologies in humans. Basic knowledge on flaviviruses is rapidly expanding, partly due to their status as frequent emerging or re-emerging pathogens. Flaviviruses include the dengue, Zika, West Nile, tick-borne encephalitis and yellow fever viruses (DENV, ZIKV, WNV, TBEV and YFV, respectively). As is the case with other families of viruses, the success of productive infection of human cells by flaviviruses depends in part on the antiviral activity of a heterogeneous group of cellular antiviral proteins called restriction factors. Restriction factors are the effector proteins of the cell-autonomous innate response against viruses, an immune pathway that also includes virus sensors as well as intracellular and extracellular signal mediators such as type I interferons (IFN-I). In this review, I summarize recent progress toward the identification and characterization of flavivirus restriction factors. In particular, I focus on IFI6, Schlafen 11, FMRP, OAS-RNase L, RyDEN, members of the TRIM family of proteins (TRIM5α, TRIM19, TRIM56, TRIM69 and TRIM79α) and a new mechanism of action proposed for viperin. Recent and future studies on this topic will lead to a more complete picture of the flavivirus restrictome, defined as the ensemble of cellular factors with demonstrated anti-flaviviral activity.
Collapse
|
21
|
Peng X, Liao G, Sun P, Yu Z, Chen J. An Overview of HDAC Inhibitors and their Synthetic Routes. Curr Top Med Chem 2019; 19:1005-1040. [DOI: 10.2174/1568026619666190227221507] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/19/2019] [Accepted: 01/28/2019] [Indexed: 12/21/2022]
Abstract
Epigenetics play a key role in the origin, development and metastasis of cancer. Epigenetic processes include DNA methylation, histone acetylation, histone methylation, and histone phosphorylation, among which, histone acetylation is the most common one that plays important roles in the regulation of normal cellular processes, and is controlled by histone deacetylases (HDACs) and histone acetyltransferases (HATs). HDACs are involved in the regulation of many key cellular processes, such as DNA damage repair, cell cycle control, autophagy, metabolism, senescence and chaperone function, and can lead to oncogene activation. As a result, HDACs are considered to be an excellent target for anti-cancer therapeutics like histone deacetylase inhibitors (HDACi) which have attracted much attention in the last decade. A wide-ranging knowledge of the role of HDACs in tumorigenesis, and of the action of HDACi, has been achieved. The primary purpose of this paper is to summarize recent HDAC inhibitors and the synthetic routes as well as to discuss the direction for the future development of new HDAC inhibitors.
Collapse
Affiliation(s)
- Xiaopeng Peng
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Guochao Liao
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Pinghua Sun
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Jianjun Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
22
|
Deng L, Wang R, Li H, Zhang C, Zhao L, Zhang M. miRNA-Gene Regulatory Network in Gnotobiotic Mice Stimulated by Dysbiotic Gut Microbiota Transplanted From a Genetically Obese Child. Front Microbiol 2019; 10:1517. [PMID: 31333621 PMCID: PMC6624655 DOI: 10.3389/fmicb.2019.01517] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 06/18/2019] [Indexed: 12/12/2022] Open
Abstract
Gut microbiota (GM) dysbiosis has been considered a pathogenic origin of many chronic diseases. In our previous trial, a shift in GM structure caused by a complex fiber-rich diet was associated with the health improvement of obese Prader-Willi syndrome (PWS) children. The pre- and post-intervention GMs (pre- and post-group, respectively) from one child were then transplanted into gnotobiotic mice, which resulted in significantly different physiological phenotypes, each of which was similar to the phenotype of the corresponding GM donor. This study was designed to investigate the miRNA-gene regulatory networks involved in causing these phenotypic differences. Using the post-group as a reference, we systematically identified and annotated the differentially expressed (DE) miRNAs and genes in the colon and liver of the pre-group in the second and fourth weeks after GM inoculation. Most of the significantly enriched GO terms and KEGG pathways were observed in the liver and were in the second week after GM transplantation. We screened 23 key genes along with their 73 miRNA regulators relevant to the host phenotype changes and constructed a network. The network contained 92 miRNA-gene regulation relationships, 51 of which were positive, and 41 of which were negative. Both the colon and liver had upregulated pro-inflammatory genes, and genes involved in fatty acid oxidation, lipolysis, and plasma cholesterol clearance were downregulated in only the liver. These changes were consistent with lipid and cholesterol accumulation in the host and with a high inflammation level. In addition, the colon showed an impacted glucagon-like peptide 1 (GLP-1) signaling pathway, while the liver displayed decreased insulin receptor signaling pathway activity. These molecular changes were mainly found in the second week, 2 weeks before changes in body fat occurred. This time lag indicated that GM dysbiosis might initially induce cholesterol and lipid metabolism-related miRNA and gene expression disorder and then lead to lipid accumulation and obesity development, which implicates a causative role of GM dysbiosis in obesity development rather than a result of obesity. This study provides fundamental molecular information that elucidates how dysbiotic GM increases host inflammation and disturbs host lipid and glucose metabolism.
Collapse
Affiliation(s)
- Liman Deng
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Ruirui Wang
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Li
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Chenhong Zhang
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Liping Zhao
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.,Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers New Jersey Institute for Food, Nutrition, and Health, Rutgers University-New Brunswick, New Brunswick, NJ, United States
| | - Menghui Zhang
- State Key Laboratory of Microbial Metabolism and Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
23
|
Xia Z, Xu G, Nie L, Liu L, Peng N, He Q, Zuo Q, Zhou Y, Cao Z, Liu S, Zhu Y. NAC1 Potentiates Cellular Antiviral Signaling by Bridging MAVS and TBK1. THE JOURNAL OF IMMUNOLOGY 2019; 203:1001-1011. [DOI: 10.4049/jimmunol.1801110] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 06/10/2019] [Indexed: 12/17/2022]
|
24
|
Mostafavi H, Abeyratne E, Zaid A, Taylor A. Arthritogenic Alphavirus-Induced Immunopathology and Targeting Host Inflammation as A Therapeutic Strategy for Alphaviral Disease. Viruses 2019; 11:v11030290. [PMID: 30909385 PMCID: PMC6466158 DOI: 10.3390/v11030290] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 12/25/2022] Open
Abstract
Arthritogenic alphaviruses are a group of medically important arboviruses that cause inflammatory musculoskeletal disease in humans with debilitating symptoms, such as arthralgia, arthritis, and myalgia. The arthritogenic, or Old World, alphaviruses are capable of causing explosive outbreaks, with some viruses of major global concern. At present, there are no specific therapeutics or commercially available vaccines available to prevent alphaviral disease. Infected patients are typically treated with analgesics and non-steroidal anti-inflammatory drugs to provide often inadequate symptomatic relief. Studies to determine the mechanisms of arthritogenic alphaviral disease have highlighted the role of the host immune system in disease pathogenesis. This review discusses the current knowledge of the innate immune response to acute alphavirus infection and alphavirus-induced immunopathology. Therapeutic strategies to treat arthritogenic alphavirus disease by targeting the host immune response are also examined.
Collapse
Affiliation(s)
- Helen Mostafavi
- Emerging Viruses and Inflammation Research Group, Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Eranga Abeyratne
- Emerging Viruses and Inflammation Research Group, Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Ali Zaid
- Emerging Viruses and Inflammation Research Group, Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Adam Taylor
- Emerging Viruses and Inflammation Research Group, Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia.
| |
Collapse
|
25
|
Hai L, Szwarc MM, Lanza DG, Heaney JD, Lydon JP. Using CRISPR/Cas9 engineering to generate a mouse with a conditional knockout allele for the promyelocytic leukemia zinc finger transcription factor. Genesis 2019; 57:e23281. [PMID: 30628160 PMCID: PMC6422732 DOI: 10.1002/dvg.23281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/07/2019] [Indexed: 12/23/2022]
Abstract
The promyelocytic leukemia zinc finger (PLZF) transcription factor mediates a wide-range of biological processes. Accordingly, perturbation of PLZF function results in a myriad of physiologic defects, the most conspicuous of which is abnormal skeletal patterning. Although whole body knockout of Plzf in the mouse (Plzf KO ) has significantly expanded our understanding of Plzf function in vivo, a conditional knockout mouse model that enables tissue or cell-type specific ablation of Plzf has not been developed. Therefore, we used CRISPR/Cas 9 gene editing to generate a mouse model in which exon 2 of the murine Plzf gene is specifically flanked (or floxed) by LoxP sites (Plzf f/f ). Crossing our Plzf f/f mouse with a global cre-driver mouse to generate the Plzf d/d bigenic mouse, we demonstrate that exon 2 of the Plzf gene is ablated in the Plzf d/d bigenic. Similar to the previously reported Plzf KO mouse, the Plzf d/d mouse exhibits a severe defect in skeletal patterning of the hindlimb, indicating that the Plzf f/f mouse functions as designed. Therefore, studies in this short technical report demonstrate that the Plzf f/f mouse will be useful to investigators who wish to explore the role of the Plzf transcription factor in a specific tissue or cell-type.
Collapse
Affiliation(s)
- Lan Hai
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030
| | - Maria M. Szwarc
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030
| | - Denise G. Lanza
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030
| | - Jason D. Heaney
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030
| | - John P. Lydon
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030
| |
Collapse
|
26
|
Agrawal Singh S, Lerdrup M, Gomes ALR, van de Werken HJ, Vilstrup Johansen J, Andersson R, Sandelin A, Helin K, Hansen K. PLZF targets developmental enhancers for activation during osteogenic differentiation of human mesenchymal stem cells. eLife 2019; 8:40364. [PMID: 30672466 PMCID: PMC6344081 DOI: 10.7554/elife.40364] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 12/13/2018] [Indexed: 12/14/2022] Open
Abstract
The PLZF transcription factor is essential for osteogenic differentiation of hMSCs; however, its regulation and molecular function during this process is not fully understood. Here, we revealed that the ZBTB16 locus encoding PLZF, is repressed by Polycomb (PcG) and H3K27me3 in naive hMSCs. At the pre-osteoblast stage of differentiation, the locus lost PcG binding and H3K27me3, gained JMJD3 recruitment, and H3K27ac resulting in high expression of PLZF. Subsequently, PLZF was recruited to osteogenic enhancers, influencing H3K27 acetylation and expression of nearby genes important for osteogenic function. Furthermore, we identified a latent enhancer within the ZBTB16/PLZF locus itself that became active, gained PLZF, p300 and Mediator binding and looped to the promoter of the nicotinamide N-methyltransferase (NNMT) gene. The increased expression of NNMT correlated with a decline in SAM levels, which is dependent on PLZF and is required for osteogenic differentiation.
Collapse
Affiliation(s)
- Shuchi Agrawal Singh
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Hematology, Cambridge Institute for Medical Research and Welcome Trust/MRC Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mads Lerdrup
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ana-Luisa R Gomes
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Harmen Jg van de Werken
- Department of Cell Biology, University Medical Center, Rotterdam, Netherlands.,Cancer Computational Biology Center, University Medical Center, Rotterdam, Netherlands.,Department of Urology, University Medical Center, Rotterdam, Netherlands
| | - Jens Vilstrup Johansen
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Biology, The Bioinformatics Centre, University of Copenhagen, Copenhagen, Denmark
| | - Robin Andersson
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Biology, The Bioinformatics Centre, University of Copenhagen, Copenhagen, Denmark
| | - Albin Sandelin
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Biology, The Bioinformatics Centre, University of Copenhagen, Copenhagen, Denmark
| | - Kristian Helin
- The Novo Nordisk Center for Stem Cell Biology, Faculty of Health and Medical Sciences University of Copenhagen, Copenhagen, Denmark.,Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, United States.,Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Klaus Hansen
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Epigenetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
27
|
Gust KA, Chaitankar V, Ghosh P, Wilbanks MS, Chen X, Barker ND, Pham D, Scanlan LD, Rawat A, Talent LG, Quinn MJ, Vulpe CD, Elasri MO, Johnson MS, Perkins EJ, McFarland CA. Multiple environmental stressors induce complex transcriptomic responses indicative of phenotypic outcomes in Western fence lizard. BMC Genomics 2018; 19:877. [PMID: 30518325 PMCID: PMC6282355 DOI: 10.1186/s12864-018-5270-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 11/19/2018] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The health and resilience of species in natural environments is increasingly challenged by complex anthropogenic stressor combinations including climate change, habitat encroachment, and chemical contamination. To better understand impacts of these stressors we examined the individual- and combined-stressor impacts of malaria infection, food limitation, and 2,4,6-trinitrotoluene (TNT) exposures on gene expression in livers of Western fence lizards (WFL, Sceloporus occidentalis) using custom WFL transcriptome-based microarrays. RESULTS Computational analysis including annotation enrichment and correlation analysis identified putative functional mechanisms linking transcript expression and toxicological phenotypes. TNT exposure increased transcript expression for genes involved in erythropoiesis, potentially in response to TNT-induced anemia and/or methemoglobinemia and caused dose-specific effects on genes involved in lipid and overall energy metabolism consistent with a hormesis response of growth stimulation at low doses and adverse decreases in lizard growth at high doses. Functional enrichment results were indicative of inhibited potential for lipid mobilization and catabolism in TNT exposures which corresponded with increased inguinal fat weights and was suggestive of a decreased overall energy budget. Malaria infection elicited enriched expression of multiple immune-related functions likely corresponding to increased white blood cell (WBC) counts. Food limitation alone enriched functions related to cellular energy production and decreased expression of immune responses consistent with a decrease in WBC levels. CONCLUSIONS Despite these findings, the lizards demonstrated immune resilience to malaria infection under food limitation with transcriptional results indicating a fully competent immune response to malaria, even under bio-energetic constraints. Interestingly, both TNT and malaria individually increased transcriptional expression of immune-related genes and increased overall WBC concentrations in blood; responses that were retained in the TNT x malaria combined exposure. The results demonstrate complex and sometimes unexpected responses to multiple stressors where the lizards displayed remarkable resiliency to the stressor combinations investigated.
Collapse
Affiliation(s)
- Kurt A Gust
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, 39180, USA.
| | - Vijender Chaitankar
- National Institute of Health - National Heart, Lung, and Blood Institute, Bethesda, MD, 20892, USA
| | - Preetam Ghosh
- Virginia Commonwealth University, School of Engineering, Richmond, VA, 23284, USA
| | - Mitchell S Wilbanks
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, 39180, USA
| | - Xianfeng Chen
- IFXworks LLC, 2915 Columbia Pike, Arlington, VA, 22204, USA
| | | | - Don Pham
- Department of Nutritional Sciences and Toxicology, University of California Berkeley, Berkeley, CA, 94720, USA.,Carlsbad Unified School District, Carlsbad, CA, 92009, USA
| | - Leona D Scanlan
- Department of Nutritional Sciences and Toxicology, University of California Berkeley, Berkeley, CA, 94720, USA.,Department of Pesticide Regulation, California Environmental Protection Agency, Sacramento, CA, 95812, USA
| | - Arun Rawat
- Sidra Medicine, Education City (North Campus), Doha, 26999, Qatar
| | - Larry G Talent
- Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Michael J Quinn
- U.S. Army Public Health Center, Aberdeen Proving Ground, Aberdeen, MD, 21010, USA
| | - Christopher D Vulpe
- College of Veterinary Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Mohamed O Elasri
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, 39406-5018, USA
| | - Mark S Johnson
- U.S. Army Public Health Center, Aberdeen Proving Ground, Aberdeen, MD, 21010, USA
| | - Edward J Perkins
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, 39180, USA
| | - Craig A McFarland
- U.S. Army Public Health Center, Aberdeen Proving Ground, Aberdeen, MD, 21010, USA
| |
Collapse
|
28
|
Suliman BA, Al-Yahya S. Promyelocytic leukemia zinc finger triggers ATP-binding cassette subfamily E member 1-mediated growth inhibition in breast cancer cells. Oncol Lett 2018; 16:4143-4150. [PMID: 30214553 PMCID: PMC6126154 DOI: 10.3892/ol.2018.9207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 12/19/2017] [Indexed: 11/18/2022] Open
Abstract
The promyelocytic leukemia zinc finger (PLZF) protein is a transcription factor that is involved in a number of biological processes, including those regulating cellular growth; however, little is known regarding how it achieves its inhibitory effect in different cell and tissue types. It has previously been demonstrated that PLZF expression levels become diminished during the oncogenic transformation of certain tissue types and thus, may serve as a hallmark for tumor aggressiveness. To examine this in breast cancer, survival curves from available oncology databases were analyzed and demonstrated that PLZF expression was positively associated with increased survival in patients with breast cancer. The mRNA and protein levels of PLZF were also revealed to be associated with the tumorigenicity of four breast cancer cell lines. Since ATP-binding cassette subfamily E member 1 (ABCE1), also known as RNase L inhibitor, has been determined to be a target gene of PLZF, the present study also investigated whether the tumor suppressive effect of PLZF was associated with ABCE1 expression. PLZF was revealed to downregulate the expression of ABCE1 in vitro, which relieved the inhibitory effect of ABCE1 on the ribonuclease L enzyme. Finally, it was concluded that PLZF expression caused an ABCE1-mediated increase in cellular cytotoxicity, as demonstrated by a reduction in the proliferation rate of breast cancer cell lines. The results of the present study are important for understanding how PLZF exerts its final inhibitory actions in breast cancer cells, and potentially in other solid tumors, through the modulation of immunological pathways.
Collapse
Affiliation(s)
- Bandar A Suliman
- BndrGene Medical Center, Research and Consultation Institute, Taibah University, Tayba, Medina 300, Saudi Arabia.,Center for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia
| | - Suhad Al-Yahya
- Molecular Biomedicine Program, Research Center, King Faisal Specialist Hospital, Riyadh 12713, Saudi Arabia
| |
Collapse
|
29
|
Holder KA, Comeau EM, Grant MD. Origins of natural killer cell memory: special creation or adaptive evolution. Immunology 2018; 154:38-49. [PMID: 29355919 DOI: 10.1111/imm.12898] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/09/2018] [Accepted: 01/14/2018] [Indexed: 12/13/2022] Open
Abstract
The few initial formative studies describing non-specific and apparently spontaneous activity of natural killer (NK) cells have since multiplied into thousands of scientific reports defining their unique capacities and means of regulation. Characterization of the array of receptors that govern NK cell education and activation revealed an unexpected relationship with the major histocompatibility molecules that NK cells originally became well known for ignoring. Proceeding true to form, NK cells continue to up-end archetypal understanding of their ever-expanding capabilities. Discovery that the NK cell repertoire is extremely diverse and can be reshaped by particular viruses into unique subsets of adaptive NK cells challenges, or at least broadens, the definition of immunological memory. This review provides an overview of studies identifying adaptive NK cells, addressing the origins of NK cell memory and introducing the heretical concept of NK cells with extensive antigenic specificity. Whether these newly apparent properties reflect adaptive utilization of known NK cell attributes and receptors or a specially creative allocation from an undefined receptor array remains to be fully determined.
Collapse
Affiliation(s)
- Kayla A Holder
- Immunology and Infectious Diseases Programme, Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| | - Emilie M Comeau
- Immunology and Infectious Diseases Programme, Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| | - Michael D Grant
- Immunology and Infectious Diseases Programme, Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St John's, NL, Canada
| |
Collapse
|
30
|
PLZF inhibits proliferation and metastasis of gallbladder cancer by regulating IFIT2. Cell Death Dis 2018; 9:71. [PMID: 29358655 PMCID: PMC5833736 DOI: 10.1038/s41419-017-0107-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 02/06/2023]
Abstract
Gallbladder cancer (GBC) is a malignant cancer with very poor prognosis. Although promyelocytic leukemia zinc-finger protein (PLZF) was reported to be deregulated in numerous cancers and also relevant to clinical prognosis, its role in GBC progression has been little known. In this study, we found PLZF expression was decreased in GBC, correlating to advanced TNM stage, distant metastasis, and shorter overall survival. Moreover, ectopic PLZF expression in GBC cells (NOZ and GBC-SD) significantly reduced the cell proliferation, migration, and invasion. Consistently, overexpression of PLZF in xenograft mice model could suppress tumor growth and liver metastasis. Mechanical investigations verified PLZF could regulate the expression of cell cycle arrest-associated gene p21 and epithelial–mesenchymal transition (EMT)-related genes (E-cadherin and N-cadherin) in GBC cell lines. Importantly, PLZF remarkably increased the mRNA transcription of interferon-induced protein with tetratricopeptide repeat 2 (IFIT2) by increasing STAT1 protein level, a known factor involved in tumor progression. Furthermore, ablation of IFIT2 in PLZF overexpression cells abrogated the tumor-suppressive function of PLZF, at least partially, leading to impaired tumor growth and EMT program. These studies indicated PLZF inhibited the proliferation and metastasis via regulation of IFIT2. In conclusion, our study demonstrated PLZF could be a promising tumor biomarker for GBC, and also be a potential therapeutic target.
Collapse
|
31
|
Large-scale reduction of tyrosine kinase activities in human monocytes stimulated in vitro with N. meningitidis. PLoS One 2018; 13:e0181912. [PMID: 29357362 PMCID: PMC5774972 DOI: 10.1371/journal.pone.0181912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 07/10/2017] [Indexed: 01/07/2023] Open
Abstract
N. meningitidis induces extensive gene expression changes in human monocytes, suggesting that complex networks of signaling pathways are activated during meningococcal sepsis. These effects are modulated by the anti-inflammatory cytokine interleukin-10 (IL-10). To further study changes in signal transduction suggested by mRNA data, we used kinase substrate arrays to identify composite kinase activities induced by lysates from a primary human monocyte model system. Cell lysates were prepared from monocytes treated with the following experimental conditions: 106 N. meningitidis/mL, 25 ng/mL IL-10, 106 N. meningitidis/mL in combination with 25 ng/mL IL-10, and vehicle. Lysates were subjected to kinase activity profiling with Tyrosine Kinase PamChip® arrays containing 144 kinase peptide substrates. In our experimental model, we were not able to detect a statistically significant large-scale change in ex vivo array peptide phosphorylation by lysates from monocytes treated for 15 minutes. Targets of the IL-10 anti-inflammatory response were not identified. A profound inhibition of array peptide phosphorylation by monocytes treated for 60 minutes was identified, suggesting low activity of a large number of kinases associated with different signaling pathways and immune cell functions, including STAT3 activity, Nf-κB and VEGF signaling, and PTEN signaling activity. The peptide representing ZBTB16, which was reduced in phosphorylation by lysates from all three experimental conditions, was in Ingenuity Pathway Analysis identified to be linked to reduced cytokine release and mRNA levels of tumor necrosis factor (TNF), IL-6, and CXCL10. Further studies should investigate changes in tyrosine kinase-mediated signal transduction in human immune cells, in order to evaluate the potential clinical application of kinome profiling in the study of systemic inflammatory responses to pathogens.
Collapse
|
32
|
Carpentier KS, Morrison TE. Innate immune control of alphavirus infection. Curr Opin Virol 2017; 28:53-60. [PMID: 29175515 DOI: 10.1016/j.coviro.2017.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/06/2017] [Indexed: 12/29/2022]
Abstract
Alphaviruses are important human pathogens that cause diseases ranging from acute and chronic polyarthralgia to encephalitis. Transmitted by mosquito vectors, alphaviruses have high potential for emergence and have initiated several recent epidemics. The innate immune response is critical for controlling the acute phase of alphavirus disease, and the induction of type I interferon (IFN) is essential in this response. In this review, we discuss our current understanding of innate host sensors that initiate antiviral responses following alphavirus infection, and the IFN-induced effector proteins that limit alphavirus replication and dissemination.
Collapse
Affiliation(s)
- Kathryn S Carpentier
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Thomas E Morrison
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA.
| |
Collapse
|
33
|
Ying L, Yan F, Williams BR, Xu P, Li X, Zhao Y, Hu Y, Wang Y, Xu D, Dai J. (-)-Epigallocatechin-3-gallate and EZH2 inhibitor GSK343 have similar inhibitory effects and mechanisms of action on colorectal cancer cells. Clin Exp Pharmacol Physiol 2017; 45:58-67. [PMID: 28925507 DOI: 10.1111/1440-1681.12854] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/10/2017] [Accepted: 09/11/2017] [Indexed: 12/31/2022]
Abstract
Epigallocatechin-3-gallate (EGCG) is a type of catechin. It exhibits excellent antioxidant effects and anti-tumour activities for cancer chemoprevention. The mechanism of anti-tumour effects of EGCG on different cancers has been studied for the past few decades, but remains controversial. To investigate the potential role that EGCG may play in the epigenetic regulation of colorectal cancer (CRC) cell line, we integrated bioinformatics analysis with experimental validation. We found that levels of the enhancer of zeste homologue 2 (EZH2) were significantly higher in CRC tissues compared to normal adjacent tissues, based on the Genomic Data Commons (GDC) data portal. Different human CRC cell lines exhibited differing expression of levels of the EZH2 protein. In RKO cells, EGCG and the EZH2 inhibitor GSK343 exhibited similar inhibitory efficacy on the proliferation, invasion and migration abilities of the cells, and suppressed protein expression of trimethylated lysine 27 on histone H3 (H3K27me3), which may be caused by the loss of the enzymatic function of EZH2. EGCG and GSK343 were found to have a synergistic effect on the growth of RKO cells in lower concentrations. EZH2-correlated genes were enriched in the cell cycle pathway, the top-ranking up-regulated pathway in tumour tissues, based on pathway analyses using the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Set Enrichment Analysis (GSEA). In accord with this, we confirmed that EGCG and GSK343 could both significantly arrest the G0/G1 phase in RKO cell cycle, suggesting EGCG and EZH2 inhibitor share a common mechanism of action in RKO cells.
Collapse
Affiliation(s)
- Le Ying
- Department of Tea Science, Zhejiang University, Hangzhou, China.,Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Feng Yan
- Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Bryan Rg Williams
- Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Ping Xu
- Department of Tea Science, Zhejiang University, Hangzhou, China
| | - Xin Li
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Yueling Zhao
- Department of Tea Science, Zhejiang University, Hangzhou, China
| | - Yiqun Hu
- Department of Medical Laboratory Science, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yuefei Wang
- Department of Tea Science, Zhejiang University, Hangzhou, China
| | - Dakang Xu
- Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia.,Institute of Ageing Research, Hangzhou Normal University School of Medicine, Hangzhou, China
| | - Jing Dai
- Laboratory of Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
34
|
Nagesh PT, Hussain M, Galvin HD, Husain M. Histone Deacetylase 2 Is a Component of Influenza A Virus-Induced Host Antiviral Response. Front Microbiol 2017; 8:1315. [PMID: 28769891 PMCID: PMC5511851 DOI: 10.3389/fmicb.2017.01315] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 06/29/2017] [Indexed: 11/13/2022] Open
Abstract
Host cells produce variety of antiviral factors that create an antiviral state and target various stages of influenza A virus (IAV) life cycle to inhibit infection. However, IAV has evolved various strategies to antagonize those antiviral factors. Recently, we reported that a member of class I host histone deacetylases (HDACs), HDAC1 possesses an anti-IAV function. Herein, we provide evidence that HDAC2, another class I member and closely related to HDAC1 in structure and function, also possesses anti-IAV properties. In turn, IAV, like HDAC1, dysregulates HDAC2, mainly at the polypeptide level through proteasomal degradation to potentially minimize its antiviral effect. We found that IAV downregulated the HDAC2 polypeptide level in A549 cells in an H1N1 strain-independent manner by up to 47%, which was recovered to almost 100% level in the presence of proteasome-inhibitor MG132. A further knockdown in HDAC2 expression by up to 90% via RNA interference augmented the growth kinetics of IAV in A549 cells by more than four-fold after 24 h of infection. Furthermore, the knockdown of HDAC2 expression decreased the IAV-induced phosphorylation of the transcription factor, Signal Transducer and Activator of Transcription I (STAT1) and the expression of interferon-stimulated gene, viperin in infected cells by 41 and 53%, respectively. The role of HDAC2 in viperin expression was analogous to that of HDAC1, but it was not in the phosphorylation of STAT1. This indicated that, like HDAC1, HDAC2 is a component of IAV-induced host innate antiviral response and performs both redundant and non-redundant functions vis-a-vis HDAC1; however, IAV dysregulates them both in a redundant manner.
Collapse
Affiliation(s)
- Prashanth T Nagesh
- Department of Microbiology and Immunology, University of OtagoDunedin, New Zealand.,Department of Microbiology, New York University School of Medicine, New YorkNY, United States
| | - Mazhar Hussain
- Department of Microbiology and Immunology, University of OtagoDunedin, New Zealand
| | - Henry D Galvin
- Department of Microbiology and Immunology, University of OtagoDunedin, New Zealand
| | - Matloob Husain
- Department of Microbiology and Immunology, University of OtagoDunedin, New Zealand
| |
Collapse
|
35
|
Zhang J, Sze DMY, Yung BYM, Tang P, Chen WJ, Chan KH, Leung PHM. Distinct expression of interferon-induced protein with tetratricopeptide repeats (IFIT) 1/2/3 and other antiviral genes between subsets of dendritic cells induced by dengue virus 2 infection. Immunology 2017; 148:363-76. [PMID: 27135915 DOI: 10.1111/imm.12615] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 04/02/2016] [Accepted: 04/19/2016] [Indexed: 12/31/2022] Open
Abstract
Dengue virus (DENV) infection is an emerging public health hazard threatening inhabitants of the tropics and sub-tropics. Dendritic cells (DCs) are one of the major targets of DENV and the initiators of the innate immune response against the virus. However, current in vitro research on the DENV-DC interaction is hampered by the low availability of ex vivo DCs and donor variation. In the current study, we attempted to develop a novel in vitro DC model using immature DCs derived from the myeloid leukaemia cell line MUTZ-3 (IMDCs) to investigate the DENV-DC interaction. The IMDCs morphologically and phenotypically resembled human immature monocyte-derived dendritic cells (IMMoDCs). However, the permissiveness of IMDCs to DENV2 was lower than that of IMMoDCs. RT-PCR arrays showed that a group of type I interferon (IFN) -inducible genes, especially IFIT1, IFITM1, and IFI27, were significantly up-regulated in IMMoDCs but not in IMDCs after DENV2 infection. Further investigation revealed that IFIT genes were spontaneously expressed at both transcriptional and protein levels in the naive IMDCs but not in the naive IMMoDCs. It is possible that the poor permissiveness of IMDCs to DENV2 was a result of the high basal levels of IFIT proteins. We conclude that the IMDC model, although less permissive to DENV2, is a useful platform for studying the suppression mechanism of DENV2 and we expand the knowledge of cellular factors that modulate DENV2 infection in the human body.
Collapse
Affiliation(s)
- Jingshu Zhang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China.,HKU-Pasteur Research Pole, School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Daniel Man-Yuen Sze
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China.,School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC, Australia
| | - Benjamin Yat-Ming Yung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Petrus Tang
- Molecular Regulation and Bioinformatics Laboratory, Department of Public Health and Parasitology, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.,Graduate Institute of Biomedical Sciences, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Wei-June Chen
- Graduate Institute of Biomedical Sciences, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan.,Department of Public Health and Parasitology, College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Kwok-Hung Chan
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Polly Hang-Mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| |
Collapse
|
36
|
Vasanthakumar A, Xu D, Lun AT, Kueh AJ, van Gisbergen KP, Iannarella N, Li X, Yu L, Wang D, Williams BR, Lee SC, Majewski IJ, Godfrey DI, Smyth GK, Alexander WS, Herold MJ, Kallies A, Nutt SL, Allan RS. A non-canonical function of Ezh2 preserves immune homeostasis. EMBO Rep 2017; 18:619-631. [PMID: 28223321 DOI: 10.15252/embr.201643237] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 01/18/2017] [Accepted: 01/22/2017] [Indexed: 12/22/2022] Open
Abstract
Enhancer of zeste 2 (Ezh2) mainly methylates lysine 27 of histone-H3 (H3K27me3) as part of the polycomb repressive complex 2 (PRC2) together with Suz12 and Eed. However, Ezh2 can also modify non-histone substrates, although it is unclear whether this mechanism has a role during development. Here, we present evidence for a chromatin-independent role of Ezh2 during T-cell development and immune homeostasis. T-cell-specific depletion of Ezh2 induces a pronounced expansion of natural killer T (NKT) cells, although Ezh2-deficient T cells maintain normal levels of H3K27me3. In contrast, removal of Suz12 or Eed destabilizes canonical PRC2 function and ablates NKT cell development completely. We further show that Ezh2 directly methylates the NKT cell lineage defining transcription factor PLZF, leading to its ubiquitination and subsequent degradation. Sustained PLZF expression in Ezh2-deficient mice is associated with the expansion of a subset of NKT cells that cause immune perturbation. Taken together, we have identified a chromatin-independent function of Ezh2 that impacts on the development of the immune system.
Collapse
Affiliation(s)
- Ajithkumar Vasanthakumar
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Dakang Xu
- Institute of Ageing Research, Hangzhou Normal University School of Medicine, Hangzhou, China.,Hudson Institute of Medical Research, Monash University, Clayton, Vic., Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Vic., Australia
| | - Aaron Tl Lun
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Andrew J Kueh
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Klaas Pjm van Gisbergen
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Nadia Iannarella
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia
| | - Xiaofang Li
- Institute of Ageing Research, Hangzhou Normal University School of Medicine, Hangzhou, China.,Hudson Institute of Medical Research, Monash University, Clayton, Vic., Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Vic., Australia
| | - Liang Yu
- Hudson Institute of Medical Research, Monash University, Clayton, Vic., Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Vic., Australia
| | - Die Wang
- Hudson Institute of Medical Research, Monash University, Clayton, Vic., Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Vic., Australia
| | - Bryan Rg Williams
- Hudson Institute of Medical Research, Monash University, Clayton, Vic., Australia.,Department of Molecular and Translational Science, Monash University, Clayton, Vic., Australia
| | - Stanley Cw Lee
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Ian J Majewski
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Dale I Godfrey
- Department of Microbiology and Immunology, The University of Melbourne, Parkville, Vic., Australia.,ARC Centre of Excellence for Advanced Molecular Imaging, The University of Melbourne, Parkville, Vic., Australia
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Mathematics and Statistics, The University of Melbourne, Parkville, Vic., Australia
| | - Warren S Alexander
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Marco J Herold
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Axel Kallies
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia .,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Rhys S Allan
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia .,Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| |
Collapse
|
37
|
Jia X, Yu H, Zhang H, Si Y, Tian D, Zhao X, Luan J, Jia H. Integrated analysis of different microarray studies to identify candidate genes in type 1 diabetes. J Diabetes 2017; 9:149-157. [PMID: 26930153 DOI: 10.1111/1753-0407.12391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 01/20/2016] [Accepted: 02/15/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Type 1 diabetes (T1D), an autoimmune disease, occurs most commonly in children. Identifying altered gene expression in peripheral blood mononuclear cells (PBMCs) of T1D may lead to new strategies for preserving or improving β-ell function in patients with T1D. METHODS The Gene Expression Omnibus database was searched for microarray studies in PBMCs of T1D. Subsequently, gene expression datasets from multiple microarray studies were integrated to obtain differentially expressed genes (DEGs) between T1D and normal controls (NC). Gene function analysis was performed to determine the functions of the DEGs identified. RESULTS Four microarray studies were available for analysis, including 199 T1D samples and 74 NC samples. Analysis revealed 695 genes that were significantly differentially expressed in PBMCs from T1D compared with NC samples, with 450 upregulated and 245 downregulated. Signal transduction (gene ontology [GO]: 0007165; false discovery rate [FDR] = 1.54 × 10-7 ) and protein binding (GO: 0005515; FDR = 2.93 × 10-24 ) were significantly enriched for the GO categories of biological processes and molecular functions, respectively. The most significant pathway in the Kyoto Encyclopedia of Genes and Genomes analysis was arachidonic acid metabolism (FDR = 1.44 × 10-3 ). Protein-protein interaction network analysis showed that the significant hub proteins contained immature colon carcinoma transcript 1 (ICT1; degree = 214; clustering coefficient [C] = 4.39 × 10-5 ), zinc finger and BTB domain containing 16 (ZBTB16; degree = 112; C = 8.04 × 10-4 ), and SERTA domain containing 1 (SERTAD1; degree = 38; C = 0.0014). CONCLUSIONS This integrated analysis will help develop improved therapies and interventions for T1D by identifying novel drug targets.
Collapse
Affiliation(s)
- Xiaowei Jia
- Department of Endocrinology, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Haotian Yu
- Department of Medicine, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Hui Zhang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China
| | - Yanfang Si
- Department of Ophthalmology, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Dengmei Tian
- Department of Hematology, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Xin Zhao
- Department of Endocrinology, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| | - Jin Luan
- Department of Disease Control, Center for Disease Control and Prevention of the Chinese Armed Police Force (CAPF), Beijing, China
| | - Hetang Jia
- Department of Endocrinology, The 309 Hospital of Chinese People's Liberation Army, Beijing, China
| |
Collapse
|
38
|
Chaharbakhshi E, Jemc JC. Broad-complex, tramtrack, and bric-à-brac (BTB) proteins: Critical regulators of development. Genesis 2016; 54:505-518. [DOI: 10.1002/dvg.22964] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/08/2016] [Accepted: 08/11/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Edwin Chaharbakhshi
- Department of Biology; Loyola University Chicago; Chicago IL
- Stritch School of Medicine; Loyola University Chicago; Maywood IL
| | | |
Collapse
|
39
|
Epigenetic Regulation of Adaptive NK Cell Diversification. Trends Immunol 2016; 37:451-461. [PMID: 27160662 DOI: 10.1016/j.it.2016.04.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/11/2016] [Accepted: 04/14/2016] [Indexed: 01/08/2023]
Abstract
Natural killer (NK) cells were previously considered to represent short-lived, innate lymphocytes. However, mouse models have revealed expansion and persistence of differentiated NK cell subsets in response to cytomegalovirus (CMV) infection, paralleling antigen-specific T cell differentiation. Congruently, analyses of humans have uncovered CMV-associated NK cell subsets characterized by epigenetic diversification processes that lead to altered target cell specificities and functional capacities. Here, focusing on responses to viruses, we review similarities and differences between mouse and human adaptive NK cells, identifying molecular analogies that may be key to transcriptional reprogramming and functional alterations. We discuss possible molecular mechanisms underlying epigenetic diversification and hypothesize that processes driving epigenetic diversification may represent a more widespread mechanism for fine-tuning and optimization of cellular immunity.
Collapse
|
40
|
Influenza A Virus Dysregulates Host Histone Deacetylase 1 That Inhibits Viral Infection in Lung Epithelial Cells. J Virol 2016; 90:4614-4625. [PMID: 26912629 DOI: 10.1128/jvi.00126-16] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 02/16/2016] [Indexed: 01/17/2023] Open
Abstract
UNLABELLED Viruses dysregulate the host factors that inhibit virus infection. Here, we demonstrate that human enzyme, histone deacetylase 1 (HDAC1) is a new class of host factor that inhibits influenza A virus (IAV) infection, and IAV dysregulates HDAC1 to efficiently replicate in epithelial cells. A time-dependent decrease in HDAC1 polypeptide level was observed in IAV-infected cells, reducing to <50% by 24 h of infection. A further depletion (97%) of HDAC1 expression by RNA interference increased the IAV growth kinetics, increasing it by >3-fold by 24 h and by >6-fold by 48 h of infection. Conversely, overexpression of HDAC1 decreased the IAV infection by >2-fold. Likewise, a time-dependent decrease in HDAC1 activity, albeit with slightly different kinetics to HDAC1 polypeptide reduction, was observed in infected cells. Nevertheless, a further inhibition of deacetylase activity increased IAV infection in a dose-dependent manner. HDAC1 is an important host deacetylase and, in addition to its role as a transcription repressor, HDAC1 has been lately described as a coactivator of type I interferon response. Consistent with this property, we found that inhibition of deacetylase activity either decreased or abolished the phosphorylation of signal transducer and activator of transcription I (STAT1) and expression of interferon-stimulated genes, IFITM3, ISG15, and viperin in IAV-infected cells. Furthermore, the knockdown of HDAC1 expression in infected cells decreased viperin expression by 58% and, conversely, the overexpression of HDAC1 increased it by 55%, indicating that HDAC1 is a component of IAV-induced host type I interferon antiviral response. IMPORTANCE Influenza A virus (IAV) continues to significantly impact global public health by causing regular seasonal epidemics, occasional pandemics, and zoonotic outbreaks. IAV is among the successful human viral pathogens that has evolved various strategies to evade host defenses, prevent the development of a universal vaccine, and acquire antiviral drug resistance. A comprehensive knowledge of IAV-host interactions is needed to develop a novel and alternative anti-IAV strategy. Host produces a variety of factors that are able to fight IAV infection by employing various mechanisms. However, the full repertoire of anti-IAV host factors and their antiviral mechanisms has yet to be identified. We have identified here a new host factor, histone deacetylase 1 (HDAC1) that inhibits IAV infection. We demonstrate that HDAC1 is a component of host innate antiviral response against IAV, and IAV undermines HDAC1 to limit its role in antiviral response.
Collapse
|
41
|
Aleksejeva E, Houel A, Briolat V, Levraud JP, Langevin C, Boudinot P. Zebrafish Plzf transcription factors enhance early type I IFN response induced by two non-enveloped RNA viruses. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 57:48-56. [PMID: 26719025 DOI: 10.1016/j.dci.2015.12.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 12/18/2015] [Accepted: 12/18/2015] [Indexed: 06/05/2023]
Abstract
The BTB-POZ transcription factor Promyelocytic Leukemia Zinc Finger (PLZF, or ZBTB16) has been recently identified as a major factor regulating the induction of a subset of Interferon stimulated genes in human and mouse. We show that the two co-orthologues of PLZF found in zebrafish show distinct expression patterns, especially in larvae. Although zbtb16a/plzfa and zbtb16b/plzfb are not modulated by IFN produced during viral infection, their over-expression increases the level of the early type I IFN response, at a critical phase in the race between the virus and the host response. The effect of Plzfb on IFN induction was also detectable after cell infection by different non-enveloped RNA viruses, but not after infection by the rhabdovirus SVCV. Our findings indicate that plzf implication in the regulation of type I IFN responses is conserved across vertebrates, but at multiple levels of the pathway and through different mechanisms.
Collapse
Affiliation(s)
- E Aleksejeva
- INRA, Virologie et Immunologie Moléculaires, 78352 Jouy-en-Josas, France
| | - A Houel
- INRA, Virologie et Immunologie Moléculaires, 78352 Jouy-en-Josas, France
| | - V Briolat
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, 25-28 rue du Docteur Roux, F-75015 Paris, France; CNRS, URA 2578, F-75015 Paris, France
| | - J-P Levraud
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, 25-28 rue du Docteur Roux, F-75015 Paris, France; CNRS, URA 2578, F-75015 Paris, France
| | - C Langevin
- INRA, Virologie et Immunologie Moléculaires, 78352 Jouy-en-Josas, France
| | - P Boudinot
- INRA, Virologie et Immunologie Moléculaires, 78352 Jouy-en-Josas, France.
| |
Collapse
|
42
|
Ding M, Zhang H, Li Z, Wang C, Chen J, Shi L, Xu D, Gao Y. The polycomb group protein enhancer of zeste 2 is a novel therapeutic target for cervical cancer. Clin Exp Pharmacol Physiol 2016; 42:458-64. [PMID: 25739318 DOI: 10.1111/1440-1681.12382] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 02/09/2015] [Accepted: 02/20/2015] [Indexed: 01/09/2023]
Abstract
Enhancer of zeste 2 (EZH2), a polycomb histone methyltransferase, is overexpressed in various cancers, including cervical cancer. Gene expression analysis revealed that increased expression of EZH2 is associated with cervical cancer progression, particularly the progression to invasive squamous cell carcinoma. Enhancer of zeste 2 is known to trimethylate lysine 27 on histone H3, leading to gene silencing that contributes to the progression of tumours into a more aggressive form of cancer. However, the specific molecular mechanisms by which EZH2 contributes to the development of cervical cancer remain largely unknown. Recently, an EZH2 inhibitor was reported to selectively inhibit trimethylated lysine 27 on histone H3 and to reactivate silenced genes in cancer cells. In this study, we found that GSK343 (a specific inhibitor of EZH2 methyltransferase) induces phenotypic reprogramming of cancer cells from mesenchymal to epithelial cells, reducing proliferation and cell motility and blocking the invasion of cervical cancer cell lines both in vitro and in vivo. Treatment with the EZH2 inhibitor led to increased levels of the epithelial marker E-cadherin and decreased levels of mesenchymal markers such as N-cadherin and vimentin. The observed reprogramming is associated with restrained cervical cancer progression and provides direct evidence in support of EZH2 as a therapeutic target.
Collapse
Affiliation(s)
- Muyang Ding
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Histone deacetylases in monocyte/macrophage development, activation and metabolism: refining HDAC targets for inflammatory and infectious diseases. Clin Transl Immunology 2016; 5:e62. [PMID: 26900475 PMCID: PMC4735065 DOI: 10.1038/cti.2015.46] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/22/2015] [Accepted: 12/22/2015] [Indexed: 02/07/2023] Open
Abstract
Macrophages have central roles in danger detection, inflammation and host defense, and consequently, these cells are intimately linked to most disease processes. Major advances in our understanding of the development and function of macrophages have recently come to light. For example, it is now clear that tissue-resident macrophages can be derived from either blood monocytes or through local proliferation of phagocytes that are originally seeded during embryonic development. Metabolic state has also emerged as a major control point for macrophage activation phenotypes. Herein, we review recent literature linking the histone deacetylase (HDAC) family of enzymes to macrophage development and activation, particularly in relation to these recent developments. There has been considerable interest in potential therapeutic applications for small molecule inhibitors of HDACs (HDACi), not only for cancer, but also for inflammatory and infectious diseases. However, the enormous range of molecular and cellular processes that are controlled by different HDAC enzymes presents a potential stumbling block to clinical development. We therefore present examples of how classical HDACs control macrophage functions, roles of specific HDACs in these processes and approaches for selective targeting of drugs, such as HDACi, to macrophages. Development of selective inhibitors of macrophage-expressed HDACs and/or selective delivery of pan HDACi to macrophages may provide avenues for enhancing efficacy of HDACi in therapeutic applications, while limiting unwanted side effects.
Collapse
|
44
|
Xu F, Kang Y, Zhuang N, Lu Z, Zhang H, Xu D, Ding Y, Yin H, Shi L. Bcl6 Sets a Threshold for Antiviral Signaling by Restraining IRF7 Transcriptional Program. Sci Rep 2016; 6:18778. [PMID: 26728228 PMCID: PMC4700451 DOI: 10.1038/srep18778] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 11/26/2015] [Indexed: 02/04/2023] Open
Abstract
The coordination of restraining and priming of antiviral signaling constitute a fundamental aspect of immunological functions. However, we currently know little about the molecular events that can translate the pathogenic cues into the appropriate code for antiviral defense. Our present study reports a specific role of B cell lymphoma (Bcl)6 as a checkpoint in the initiation of the host response to cytosolic RNA viruses. Remarkably, Bcl6 specifically binds to the interferon-regulatory factor (IRF)7 loci and restrains its transcription, thereby functioning as a negative regulator for interferon (IFN)-β production and antiviral responses. The signal-controlled turnover of the Bcl6, most likely mediated by microRNA-127, coordinates the antiviral response and inflammatory sequelae. Accordingly, de-repression of Bcl6 resulted in a phenotypic conversion of macrophages into highly potent IFN-producing cells and rendered mice more resistant to pathogenic RNA virus infection. The failure to remove the Bcl6 regulator, however, impedes the antiviral signaling and exaggerates viral pneumonia in mice. We thus reveal a novel key molecular checkpoint to orchestrate antiviral innate immunity.
Collapse
Affiliation(s)
- Feng Xu
- Department of Infectious Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yanhua Kang
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Ningtong Zhuang
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Zhe Lu
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Hang Zhang
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Dakang Xu
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China.,MIMR-PHI Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Yina Ding
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Hongping Yin
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Liyun Shi
- Department of Microbiology and Immunology, Key Lab of Immunology and Molecular Medicine, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China.,Department of Microbiology and Immunology, Nanjing University of Chinese Medicine, Nanjing 210046, China
| |
Collapse
|
45
|
Liu TM, Lee EH, Lim B, Shyh-Chang N. Concise Review: Balancing Stem Cell Self-Renewal and Differentiation with PLZF. Stem Cells 2016; 34:277-87. [DOI: 10.1002/stem.2270] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/21/2015] [Accepted: 11/29/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Tong Ming Liu
- Cancer Stem Cell Biology, Genome Institute of Singapore; Singapore
| | - Eng Hin Lee
- Department of Orthopaedic Surgery; National University of Singapore; Singapore
- NUS Tissue Engineering Program (NUSTEP); National University of Singapore; Singapore
| | - Bing Lim
- Cancer Stem Cell Biology, Genome Institute of Singapore; Singapore
| | - Ng Shyh-Chang
- Stem Cell and Regenerative Biology; Genome Institute of Singapore; Singapore
| |
Collapse
|
46
|
Chen S, Qian J, Shi X, Gao T, Liang T, Liu C. Control of hepatic gluconeogenesis by the promyelocytic leukemia zinc finger protein. Mol Endocrinol 2015; 28:1987-98. [PMID: 25333514 DOI: 10.1210/me.2014-1164] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The promyelocytic leukemia zinc finger (PLZF) protein is involved in major biological processes including energy metabolism, although its role remains unknown. In this study, we demonstrated that hepatic PLZF expression was induced in fasted or diabetic mice. PLZF promoted gluconeogenic gene expression and hepatic glucose output, leading to hyperglycemia. In contrast, hepatic PLZF knockdown improved glucose homeostasis in db/db mice. Mechanistically, peroxisome proliferator-activated receptor γ coactivator 1α and the glucocorticoid receptor synergistically activated PLZF expression. We conclude that PLZF is a critical regulator of hepatic gluconeogenesis. PLZF manipulation may benefit the treatment of metabolic diseases associated with gluconeogenesis.
Collapse
Affiliation(s)
- Siyu Chen
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology and College of Life Sciences (S.C., J.Q., X.S., T.G., T.L., C.L.), Nanjing Normal University, Nanjing, Jiangsu 210023, China; and State Key Laboratory of Natural Medicines (C.L.), China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | | | | | | | | | | |
Collapse
|
47
|
Schlums H, Cichocki F, Tesi B, Theorell J, Beziat V, Holmes TD, Han H, Chiang SCC, Foley B, Mattsson K, Larsson S, Schaffer M, Malmberg KJ, Ljunggren HG, Miller JS, Bryceson YT. Cytomegalovirus infection drives adaptive epigenetic diversification of NK cells with altered signaling and effector function. Immunity 2015; 42:443-56. [PMID: 25786176 DOI: 10.1016/j.immuni.2015.02.008] [Citation(s) in RCA: 535] [Impact Index Per Article: 59.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 12/31/2014] [Accepted: 02/20/2015] [Indexed: 12/20/2022]
Abstract
The mechanisms underlying human natural killer (NK) cell phenotypic and functional heterogeneity are unknown. Here, we describe the emergence of diverse subsets of human NK cells selectively lacking expression of signaling proteins after human cytomegalovirus (HCMV) infection. The absence of B and myeloid cell-related signaling protein expression in these NK cell subsets correlated with promoter DNA hypermethylation. Genome-wide DNA methylation patterns were strikingly similar between HCMV-associated adaptive NK cells and cytotoxic effector T cells but differed from those of canonical NK cells. Functional interrogation demonstrated altered cytokine responsiveness in adaptive NK cells that was linked to reduced expression of the transcription factor PLZF. Furthermore, subsets of adaptive NK cells demonstrated significantly reduced functional responses to activated autologous T cells. The present results uncover a spectrum of epigenetically unique adaptive NK cell subsets that diversify in response to viral infection and have distinct functional capabilities compared to canonical NK cell subsets.
Collapse
Affiliation(s)
- Heinrich Schlums
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Frank Cichocki
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden; Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Bianca Tesi
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital Solna, 17164 Stockholm, Sweden; Clinical Genetics Unit, Department of Molecular Medicine and Surgery, and Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital Solna, 14186 Stockholm, Sweden
| | - Jakob Theorell
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Vivien Beziat
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Tim D Holmes
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Hongya Han
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Samuel C C Chiang
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Bree Foley
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Kristin Mattsson
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Stella Larsson
- Department of Clinical Immunology and Transfusion Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Marie Schaffer
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Karl-Johan Malmberg
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden; K.G. Jebsen Center for Cancer Immunotherapy, Institute of Clinical Medicine, University of Oslo, 0310 Oslo, Norway; Department of Immunology, Institute for Cancer Research, Oslo University Hospital, 0310 Oslo, Norway
| | - Hans-Gustaf Ljunggren
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden
| | - Jeffrey S Miller
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Cancer Center, Minneapolis, MN 55455, USA
| | - Yenan T Bryceson
- Centre for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 14186 Stockholm, Sweden; Broegelmann Research Laboratory, Department of Clinical Sciences, University of Bergen, 5021 Bergen, Norway.
| |
Collapse
|
48
|
The acetyltransferase HAT1 moderates the NF-κB response by regulating the transcription factor PLZF. Nat Commun 2015; 6:6795. [DOI: 10.1038/ncomms7795] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 02/27/2015] [Indexed: 01/03/2023] Open
|
49
|
Singh SP, Zhang HH, Tsang H, Gardina PJ, Myers TG, Nagarajan V, Lee CH, Farber JM. PLZF regulates CCR6 and is critical for the acquisition and maintenance of the Th17 phenotype in human cells. THE JOURNAL OF IMMUNOLOGY 2015; 194:4350-61. [PMID: 25833398 DOI: 10.4049/jimmunol.1401093] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 03/01/2015] [Indexed: 12/31/2022]
Abstract
Th17 cells, which express the chemokine receptor CCR6, are implicated in many immune-mediated disorders, such as psoriasis and multiple sclerosis. We found that expression levels of CCR6 on human effector/memory CD4(+) T cells reflect a continuum of Th17 differentiation. By evaluating the transcriptome in cells with increasing CCR6, we detected progressive upregulation of ZBTB16, which encodes the broad complex, tramtrack, bric-à-brac-zinc finger transcription factor promyelocytic leukemia zinc finger protein (PLZF). Using chromatin immunoprecipitation for modified histones, p300, and PLZF, we identified enhancer-like sites at -9/-10 and -13/-14 kb from the upstream transcription start site of CCR6 that bind PLZF in CCR6(+) cells. For Th cells from adult blood, both in the CCR6(+) memory population and in naive cells activated ex vivo, knockdown of ZBTB16 downregulated CCR6 and other Th17-associated genes. ZBTB16 and RORC (which encodes the "master regulator" RORγt) cross-regulate each other, and PLZF binds at the RORC promoter in CCR6(+) cells. In naive Th cells from cord blood, ZBTB16 expression was confined to CD161(+) cells, which are Th17 cell precursors. ZBTB16 was not expressed in mouse Th17 cells, and Th17 cells could be made from luxoid mice, which harbor an inactivating mutation in Zbtb16. These studies demonstrate a role for PLZF as an activator of transcription important both for Th17 differentiation and the maintenance of the Th17 phenotype in human cells, expand the role of PLZF as a critical regulator in the human adaptive immune system, and identify a novel, essential element in a regulatory network that is of significant therapeutic interest.
Collapse
Affiliation(s)
- Satya P Singh
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Hongwei H Zhang
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Hsinyi Tsang
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Paul J Gardina
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Timothy G Myers
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Vijayaraj Nagarajan
- Bioinformatics and Computational Biosciences Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Chang Hoon Lee
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Joshua M Farber
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892;
| |
Collapse
|
50
|
BTB-ZF transcriptional regulator PLZF modifies chromatin to restrain inflammatory signaling programs. Proc Natl Acad Sci U S A 2015; 112:1535-40. [PMID: 25605927 DOI: 10.1073/pnas.1409728112] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Inflammation is critical for host defense, but without appropriate control, it can cause chronic disease or even provoke fatal responses. Here we identify a mechanism that limits the inflammatory response. Probing the responses of macrophages to the key sensory Toll-like receptors, we identify that the Broad-complex, Tramtrack and Bric-a-brac/poxvirus and zinc finger (BTB/POZ), transcriptional regulator promyelocytic leukemia zinc finger (PLZF) limits the expression of inflammatory gene products. In accord with this finding, PLZF-deficient animals express higher levels of potent inflammatory cytokines and mount exaggerated inflammatory responses to infectious stimuli. Temporal quantitation of inflammatory gene transcripts shows increased gene induction in the absence of PLZF. Genome-wide analysis of histone modifications distinguish that PLZF establishes basal activity states of early response genes to maintain immune homeostasis and limit damaging inflammation. We show that PLZF stabilizes a corepressor complex that encompasses histone deacetylase activity to control chromatin. Together with our previous demonstration that PLZF promotes the antiviral response, these results suggest a strategy that could realize one of the major goals of immune therapy to retain immune resistance to pathogens while curbing damaging inflammation.
Collapse
|