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Simats A, Zhang S, Messerer D, Chong F, Beşkardeş S, Chivukula AS, Cao J, Besson-Girard S, Montellano FA, Morbach C, Carofiglio O, Ricci A, Roth S, Llovera G, Singh R, Chen Y, Filser S, Plesnila N, Braun C, Spitzer H, Gokce O, Dichgans M, Heuschmann PU, Hatakeyama K, Beltrán E, Clauss S, Bonev B, Schulz C, Liesz A. Innate immune memory after brain injury drives inflammatory cardiac dysfunction. Cell 2024; 187:4637-4655.e26. [PMID: 39043180 DOI: 10.1016/j.cell.2024.06.028] [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: 06/29/2023] [Revised: 04/22/2024] [Accepted: 06/21/2024] [Indexed: 07/25/2024]
Abstract
The medical burden of stroke extends beyond the brain injury itself and is largely determined by chronic comorbidities that develop secondarily. We hypothesized that these comorbidities might share a common immunological cause, yet chronic effects post-stroke on systemic immunity are underexplored. Here, we identify myeloid innate immune memory as a cause of remote organ dysfunction after stroke. Single-cell sequencing revealed persistent pro-inflammatory changes in monocytes/macrophages in multiple organs up to 3 months after brain injury, notably in the heart, leading to cardiac fibrosis and dysfunction in both mice and stroke patients. IL-1β was identified as a key driver of epigenetic changes in innate immune memory. These changes could be transplanted to naive mice, inducing cardiac dysfunction. By neutralizing post-stroke IL-1β or blocking pro-inflammatory monocyte trafficking with a CCR2/5 inhibitor, we prevented post-stroke cardiac dysfunction. Such immune-targeted therapies could potentially prevent various IL-1β-mediated comorbidities, offering a framework for secondary prevention immunotherapy.
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Affiliation(s)
- Alba Simats
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Cerebrovascular Research Laboratory, Institute of Biomedical Research of Barcelona (IIBB), Spanish National Research Council (CSIC), Barcelona, Spain
| | - Sijia Zhang
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Denise Messerer
- Medizinische Klinik und Poliklinik I, University Hospital, LMU Munich, Munich, Germany
| | - Faye Chong
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Neuherberg, Germany
| | - Sude Beşkardeş
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Neuherberg, Germany
| | | | - Jiayu Cao
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Simon Besson-Girard
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Felipe A Montellano
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany; Institute of Clinical Epidemiology and Biometry, Julius-Maximilian-University Würzburg, Würzburg, Germany
| | - Caroline Morbach
- Department Clinical Research & Epidemiology, Comprehensive Heart Failure Center, and Department Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Olga Carofiglio
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Alessio Ricci
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Stefan Roth
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Gemma Llovera
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Rashween Singh
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Yiming Chen
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Severin Filser
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Nikolaus Plesnila
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Christian Braun
- Institute of Legal Medicine, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Hannah Spitzer
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Ozgun Gokce
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), Partner Sites Munich and Bonn, Germany; Department of Old Age Psychiatry and cognitive Disorders, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Martin Dichgans
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), Partner Sites Munich and Bonn, Germany
| | - Peter U Heuschmann
- Institute of Clinical Epidemiology and Biometry, Julius-Maximilian-University Würzburg, Würzburg, Germany; Institute for Medical Data Sciences, University Hospital Würzburg, Würzburg, Germany; Clinical Trial Centre Würzburg, University Hospital Würzburg, Würzburg, Germany
| | - Kinta Hatakeyama
- Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Eduardo Beltrán
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Institute of Clinical Neuroimmunology, University Hospital, LMU Munich, Munich, Germany; Biomedical Center (BMC), Faculty of Medicine, LMU Munich, Martinsried, Germany
| | - Sebastian Clauss
- Medizinische Klinik und Poliklinik I, University Hospital, LMU Munich, Munich, Germany; Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany; Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Munich, Germany
| | - Boyan Bonev
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Neuherberg, Germany; Physiological Genomics, Biomedical Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, University Hospital, LMU Munich, Munich, Germany; Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany; Department of Immunopharmacology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Arthur Liesz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
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Lv Y, Ma X, Liu Q, Long Z, Li S, Tan Z, Wang D, Xing X, Chen L, Chen W, Wang Q, Wei Q, Hou M, Xiao Y. c-Jun targets miR-451a to regulate HQ-induced inhibition of erythroid differentiation via the BATF/SETD5/ARHGEF3 axis. Toxicology 2024; 505:153843. [PMID: 38801936 DOI: 10.1016/j.tox.2024.153843] [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: 02/19/2024] [Revised: 05/11/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Benzene, a widely used industrial chemical, has been clarified to cause hematotoxicity. Our previous study suggested that miR-451a may play a role in benzene-induced impairment of erythroid differentiation. However, the mechanism underlying remains unclear. In this study, we explored the role of miR-451a and its underlying mechanisms in hydroquinone (HQ)-induced suppression of erythroid differentiation in K562 cells. 0, 1.0, 2.5, 5.0, 10.0, and 50 μM HQ treatment of K562 cells resulted in a dose-dependent inhibition of erythroid differentiation, as well as the expression of miR-451a. Bioinformatics analysis was conducted to predict potential target genes of miR-451a and dual-luciferase reporter assays confirmed that miR-451a can directly bind to the 3'-UTR regions of BATF, SETD5, and ARHGEF3 mRNAs. We further demonstrated that over-expression or down-regulation of miR-451a altered the expression of BATF, SETD5, and ARHGEF3, and also modified erythroid differentiation. In addition, BATF, SETD5, and ARHGEF3 were verified to play a role in HQ-induced inhibition of erythroid differentiation in this study. Knockdown of SETD5 and ARHGEF3 reversed HQ-induced suppression of erythroid differentiation while knockdown of BATF had the opposite effect. On the other hand, we also identified c-Jun as a potential transcriptional regulator of miR-451a. Forced expression of c-Jun increased miR-451a expression and reversed the inhibition of erythroid differentiation induced by HQ, whereas knockdown of c-Jun had the opposite effect. And the binding site of c-Jun and miR-451a was verified by dual-luciferase reporter assay. Collectively, our findings indicate that miR-451a and its downstream targets BATF, SETD5, and ARHGEF3 are involved in HQ-induced erythroid differentiation disorder, and c-Jun regulates miR-451a as a transcriptional regulator in this process.
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Affiliation(s)
- Yanrong Lv
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaoju Ma
- Department of Hospital Acquired Infection Control and Public Health Management, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 517108, China
| | - Qing Liu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zihao Long
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shuangqi Li
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhaoqing Tan
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Dongsheng Wang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiumei Xing
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Liping Chen
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wen Chen
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qing Wang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qing Wei
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Mengjun Hou
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yongmei Xiao
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Joint International Research Laboratory of Environment and Health, Ministry of Education, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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Turi M, Anilkumar Sithara A, Hofmanová L, Žihala D, Radhakrishnan D, Vdovin A, Knápková S, Ševčíková T, Chyra Z, Jelínek T, Šimíček M, Gullà A, Anderson KC, Hájek R, Hrdinka M. Transcriptome Analysis of Diffuse Large B-Cell Lymphoma Cells Inducibly Expressing MyD88 L265P Mutation Identifies Upregulated CD44, LGALS3, NFKBIZ, and BATF as Downstream Targets of Oncogenic NF-κB Signaling. Int J Mol Sci 2023; 24:ijms24065623. [PMID: 36982699 PMCID: PMC10057398 DOI: 10.3390/ijms24065623] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
During innate immune responses, myeloid differentiation primary response 88 (MyD88) functions as a critical signaling adaptor protein integrating stimuli from toll-like receptors (TLR) and the interleukin-1 receptor (IL-1R) family and translates them into specific cellular outcomes. In B cells, somatic mutations in MyD88 trigger oncogenic NF-κB signaling independent of receptor stimulation, which leads to the development of B-cell malignancies. However, the exact molecular mechanisms and downstream signaling targets remain unresolved. We established an inducible system to introduce MyD88 to lymphoma cell lines and performed transcriptomic analysis (RNA-seq) to identify genes differentially expressed by MyD88 bearing the L265P oncogenic mutation. We show that MyD88L265P activates NF-κB signaling and upregulates genes that might contribute to lymphomagenesis, including CD44, LGALS3 (coding Galectin-3), NFKBIZ (coding IkBƺ), and BATF. Moreover, we demonstrate that CD44 can serve as a marker of the activated B-cell (ABC) subtype of diffuse large B-cell lymphoma (DLBCL) and that CD44 expression is correlated with overall survival in DLBCL patients. Our results shed new light on the downstream outcomes of MyD88L265P oncogenic signaling that might be involved in cellular transformation and provide novel therapeutical targets.
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Affiliation(s)
- Marcello Turi
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Anjana Anilkumar Sithara
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Lucie Hofmanová
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - David Žihala
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Dhwani Radhakrishnan
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Alexander Vdovin
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Sofija Knápková
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Tereza Ševčíková
- Faculty of Science, University of Ostrava, 70100 Ostrava, Czech Republic
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Zuzana Chyra
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Tomáš Jelínek
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Michal Šimíček
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Annamaria Gullà
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02215, USA
| | - Kenneth Carl Anderson
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02215, USA
| | - Roman Hájek
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
| | - Matouš Hrdinka
- Department of Haematooncology, Faculty of Medicine, University of Ostrava, 70300 Ostrava, Czech Republic
- Department of Haematooncology, University Hospital Ostrava, 70800 Ostrava, Czech Republic
- Correspondence:
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Choudhury SR, Dutta S, Bhaduri U, Rao MRS. LncRNA Hmrhl regulates expression of cancer related genes in chronic myelogenous leukemia through chromatin association. NAR Cancer 2021; 3:zcab042. [PMID: 34734184 PMCID: PMC8559160 DOI: 10.1093/narcan/zcab042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/11/2021] [Accepted: 10/19/2021] [Indexed: 12/13/2022] Open
Abstract
Long non-coding RNA has emerged as a key regulator of myriad gene functions. One such lncRNA mrhl, reported by our group, was found to have important role in spermatogenesis and embryonic development in mouse. Recently, its human homolog, Hmrhl was shown to have differential expression in several type of cancers. In the present study, we further characterize molecular features of Hmrhl and gain insight into its functional role in leukemia by gene silencing and transcriptome-based studies. Results indicate its high expression in CML patient samples as well as in K562 cell line. Silencing experiments suggest role of Hmrhl in cell proliferation, migration & invasion. RNA-seq and ChiRP-seq data analysis further revealed its association with important biological processes, including perturbed expression of crucial TFs and cancer-related genes. Among them ZIC1, PDGRFβ and TP53 were identified as regulatory targets, with high possibility of triplex formation by Hmrhl at their promoter site. Further, overexpression of PDGRFβ in Hmrhl silenced cells resulted in rescue effect of cancer associated cellular phenotypes. In addition, we also found TAL-1 to be a potential regulator of Hmrhl expression in K562 cells. Thus, we hypothesize that Hmrhl lncRNA may play a significant role in the pathobiology of CML.
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Affiliation(s)
- Subhendu Roy Choudhury
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advance Scientific Research, Bangalore, India
| | - Sangeeta Dutta
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advance Scientific Research, Bangalore, India
| | - Utsa Bhaduri
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advance Scientific Research, Bangalore, India
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Hu RD, Zhang W, Li L, Zuo ZQ, Ma M, Ma JF, Yin TT, Gao CY, Yang SH, Zhao ZB, Li ZJ, Qiao GB, Lian ZX, Qu K. Chromatin accessibility analysis identifies the transcription factor ETV5 as a suppressor of adipose tissue macrophage activation in obesity. Cell Death Dis 2021; 12:1023. [PMID: 34716308 PMCID: PMC8556336 DOI: 10.1038/s41419-021-04308-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/07/2021] [Accepted: 10/13/2021] [Indexed: 12/25/2022]
Abstract
Activation of adipose tissue macrophages (ATMs) contributes to chronic inflammation and insulin resistance in obesity. However, the transcriptional regulatory machinery involved in ATM activation during the development of obesity is not fully understood. Here, we profiled the chromatin accessibility of blood monocytes and ATMs from obese and lean mice using assay for transposase-accessible chromatin sequencing (ATAC-seq). We found that monocytes and ATMs from obese and lean mice exhibited distinct chromatin accessibility status. There are distinct regulatory elements that are specifically associated with monocyte or ATM activation in obesity. We also discovered several transcription factors that may regulate monocyte and ATM activation in obese mice, specifically a predicted transcription factor named ETS translocation variant 5 (ETV5). The expression of ETV5 was significantly decreased in ATMs from obese mice and its downregulation was mediated by palmitate stimulation. The decrease in ETV5 expression resulted in macrophage activation. Our results also indicate that ETV5 suppresses endoplasmic reticulum (ER) stress and Il6 expression in macrophages. Our work delineates the changes in chromatin accessibility in monocytes and ATMs during obesity, and identifies ETV5 as a critical transcription factor suppressing ATM activation, suggesting its potential use as a therapeutic target in obesity-related chronic inflammation.
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Affiliation(s)
- Ren-Dong Hu
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Wen Zhang
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, Anhui, China
| | - Liang Li
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
| | - Zu-Qi Zuo
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, Anhui, China
| | - Min Ma
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Jin-Fen Ma
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Ting-Ting Yin
- Department of General Surgery, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, the Second Affiliated Hospital of South China University of Technology, Guangzhou, Guangdong, China
| | - Cai-Yue Gao
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Shu-Han Yang
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Zhi-Bin Zhao
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Zi-Jun Li
- Guangdong Provincial Institute of Geriatrics, Concord Medical Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Gui-Bin Qiao
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Zhe-Xiong Lian
- Chronic Disease Laboratory, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China. .,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, China.
| | - Kun Qu
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, Anhui, China.
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Hu Y, Gu J, Wang Y, Lin J, Yu H, Yang F, Wu S, Yin J, Lv H, Ji X, Wang S. Promotion Effect of EGCG on the Raised Expression of IL-23 through the Signaling of STAT3-BATF2-c-JUN/ATF2. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7898-7909. [PMID: 34227806 DOI: 10.1021/acs.jafc.1c02433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tea polyphenol of epigallocatechin-3-gallate (EGCG) has been verified to possess multiple biological activities. Interleukin-23 (IL-23) is a heterodimeric cytokine consisting of two subunits of IL-23p19 and IL-12p40, with the functionality in regulating the production of cytokines under physiological or pathological conditions. By serendipity, the raised expression of IL-23 was observed after treating cells with EGCG, whereas the detailed mechanism remains poorly understood. This study was proposed to investigate the signaling related to EGCG-induced IL-23. The raised expression of IL-23 was confirmed primarily by intraperitoneally injecting with different concentrations of EGCG (0, 20, 50, 80 mg/kg) into BALB/c mice, and the raised expression was confirmed by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Results from enzyme-linked immunosorbent assay (ELISA) revealed the increase of IL-23 in serum from 116.09 to 153.90 pg/mL after treating with EGCG. The same results were also observed in RAW264.7 and peritoneal macrophages after treating with EGCG (0, 1, 5, 10, 25 μM) with the increased tendency of IL-23 in cultural medium (7.98 to 25.38 pg/mL for RAW264.7; 3.64 to 260.93 pg/mL for peritoneal macrophages). After preliminary exploration of the signaling related to the increased IL-23, the classical signaling pathways and key transcription factors, such as nuclear factor kappa-B (NF-κB), mitogen-activated protein kinase (MAPK) signaling pathways, and interferon regulatory factor 5 (IRF5), were demonstrated with no relevant contribution. A further study revealed the involvement of the key transcription factor of BATF2, which could antagonistically modulate the transcription and translation of IL-23. The signaling of STAT3-BATF2-c-JUN/ATF2-IL-23 has been further verified in RAW264.7 macrophages using the STAT3 inhibitor of AG490 and the activator of Colivelin TFA. The results indicated that EGCG inhibits the phosphorylation of STAT3 to facilitate the decreased level of BATF2, which contributed to the increased level of IL-23 by the enhancing heterodimerization of c-JUN and ATF2.
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Affiliation(s)
- Yaozhong Hu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jiaxin Gu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yi Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jing Lin
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Huaning Yu
- Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd, Guangdong 528000, China
| | - Feier Yang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Sihao Wu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jia Yin
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Huan Lv
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xuemeng Ji
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
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7
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Sarode AY, Jha MK, Zutshi S, Ghosh SK, Mahor H, Sarma U, Saha B. Residue-Specific Message Encoding in CD40-Ligand. iScience 2020; 23:101441. [PMID: 32827854 PMCID: PMC7452233 DOI: 10.1016/j.isci.2020.101441] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/15/2020] [Accepted: 08/03/2020] [Indexed: 11/15/2022] Open
Abstract
CD40-Ligand (CD40L)-CD40 interaction regulates immune responses against pathogens, autoantigens, and tumor and transplantation antigens. Single amino acid mutations within the 115-155 amino acids stretch, which is responsible for CD40L functions, result in XIgM syndrome. We hypothesize that each of these amino acids of CD40L encodes specific message that, when decoded by CD40 signaling, induces a specific profile of functions. We observed that every single substitution in the XIgM-related amino acids in the 115-155 41-mer peptide in CD40L selectively altered CD40 signaling and effector functions-cytokine productions, HMGCoA reductase, ceramide synthase, inducible nitric oxide synthase and arginase expression, survival of B cells, and control of Leishmania infection and anti-leishmanial T cell response-suggesting residue-specific encoding of a distinct set of messages that collectively define CD40L pleiotropy, serve as a target for engineering the ligand to generate superagonists as immunotherapeutic, and implicate the evolutionary diversification of functions among the ligands in a protein superfamily.
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Affiliation(s)
- Aditya Yashwant Sarode
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Mukesh Kumar Jha
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Shubhranshu Zutshi
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Soumya Kanti Ghosh
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Hima Mahor
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Uddipan Sarma
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Bhaskar Saha
- National Centre for Cell Science, Lab-5, Pathogenesis and Cellular Response, Ganeshkhind, Pune, Maharashtra 411007, India
- Trident Academy of Creative Technology, Bhubaneswar, Orissa 751024, India
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8
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Abdelsamed HA, Zebley CC, Nguyen H, Rutishauser RL, Fan Y, Ghoneim HE, Crawford JC, Alfei F, Alli S, Ribeiro SP, Castellaw AH, McGargill MA, Jin H, Boi SK, Speake C, Serti E, Turka LA, Busch ME, Stone M, Deeks SG, Sekaly RP, Zehn D, James EA, Nepom GT, Youngblood B. Beta cell-specific CD8 + T cells maintain stem cell memory-associated epigenetic programs during type 1 diabetes. Nat Immunol 2020; 21:578-587. [PMID: 32231298 PMCID: PMC7183435 DOI: 10.1038/s41590-020-0633-5] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 02/08/2020] [Indexed: 12/22/2022]
Abstract
The pool of beta cell-specific CD8+ T-cells in type 1 diabetes (T1D) sustains an autoreactive potential despite having access to a constant source of antigen. To investigate the long-lived nature of these cells, we established a DNA methylation-based T cell “multipotency index” and found that beta cell-specific CD8+ T-cells retained a stem-like epigenetic multipotency score. Single cell ATAC-seq analysis confirmed the co-existence of naive and effector-associated epigenetic programs in individual beta cell-specific CD8+ T-cells. Assessment of beta cell-specific CD8+ T-cell anatomical distribution and the establishment of stem-associated epigenetic programs revealed that self-reactive CD8+ T-cells isolated from murine lymphoid tissue retained developmentally plastic phenotypic and epigenetic profiles relative to the same cells isolated from the pancreas. Collectively, these data provide new insight into the longevity of beta cell-specific CD8+ T cell responses, and document the utility of this novel methylation-based multipotency index for investigating human and mouse CD8+ T-cell differentiation.
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Affiliation(s)
- Hossam A Abdelsamed
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, School of Medicine, Pittsburgh, PA, USA
| | - Caitlin C Zebley
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.,Graduate School of Biomedical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Hai Nguyen
- Translational Research Program, Benaroya Research Institute, Seattle, WA, USA
| | - Rachel L Rutishauser
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Yiping Fan
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Hazem E Ghoneim
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH, USA
| | | | - Francesca Alfei
- Division of Animal Physiology and Immunology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Shanta Alli
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | | | - Ashley H Castellaw
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Maureen A McGargill
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Hongjian Jin
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shannon K Boi
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Cate Speake
- Diabetes Research Program, Benaroya Research Institute, Seattle, WA, USA
| | | | - Laurence A Turka
- Immune Tolerance Network, Bethesda, MD, USA.,Center for Translational Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | | | - Mars Stone
- Vitalant Research Institute, San Francisco, CA, USA
| | - Steven G Deeks
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | | | - Dietmar Zehn
- Division of Animal Physiology and Immunology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Eddie A James
- Translational Research Program, Benaroya Research Institute, Seattle, WA, USA
| | - Gerald T Nepom
- Translational Research Program, Benaroya Research Institute, Seattle, WA, USA.,Immune Tolerance Network, Bethesda, MD, USA
| | - Ben Youngblood
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA. .,Graduate School of Biomedical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA.
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9
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Yang Q, Qu J, Jin C, Feng Y, Xie S, Zhu J, Liu G, Xie H, Qiu H, Qi Y, Mu J, Huang J. Schistosoma japonicum Infection Promotes the Response of Tfh Cells Through Down-Regulation of Caspase-3-Mediating Apoptosis. Front Immunol 2019; 10:2154. [PMID: 31572373 PMCID: PMC6753327 DOI: 10.3389/fimmu.2019.02154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 08/28/2019] [Indexed: 01/13/2023] Open
Abstract
CD4+ T follicular helper (Tfh) cells, a new subset of immune cells, have been demonstrated to be involved in granulomatous responses to Schistosoma japonicum (S. japonicum) infection. However, the role and underlying mechanisms of Tfh cell aggregation in S. japonicum infection remain incompletely understood. In this study, we provide evidence that S. japonicum infection enhances the accumulation of Tfh cells in the spleen, lymph nodes, and peripheral blood of C57BL/6 mice. Infection-induced Tfh cells exhibited more potent effects directly on B cell responses than the control Tfh cells (P < 0.05). Furthermore, reduced apoptosis of Tfh cells was found both in S. japonicum infected mice and in soluble egg antigen (SEA) treated Tfh cells (P < 0.05). Mechanistic studies reveal that caspase-3 is the primary drivers of down-regulated apoptotic Tfh cell death in S. japonicum infection. In summary, this study demonstrates that Tfh cell accumulation might have an impact on the generation of immune responses in S. japonicum infection, and caspase-3 signaling mediated apoptosis down-regulation might responsible for the accumulation of Tfh cell in this course.
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Affiliation(s)
- Quan Yang
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jiale Qu
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Chenxi Jin
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuanfa Feng
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Shihao Xie
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jinxin Zhu
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Gaoshen Liu
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hongyan Xie
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Huaina Qiu
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yanwei Qi
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jianbing Mu
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Jun Huang
- Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
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10
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Wang Q, Lu W, Yin T, Lu L. Calycosin suppresses TGF-β-induced epithelial-to-mesenchymal transition and migration by upregulating BATF2 to target PAI-1 via the Wnt and PI3K/Akt signaling pathways in colorectal cancer cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:240. [PMID: 31174572 PMCID: PMC6555005 DOI: 10.1186/s13046-019-1243-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/23/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVES To determine whether the upregulation of basic leucine zipper ATF-like transcription factor 2 (BATF2) by calycosin suppresses the growth and epithelial-to-mesenchymal transition (EMT) in human colorectal cancer (CRC) cells. METHOD Cells were cultured and treated with different concentrations of calycosin for different periods of time. Protein and mRNA expression was determined by western blotting and quantitative PCR. Cell migration was assessed by Transwell experiments. Co-immunoprecipitation and luciferase assays were used to analyze the association between BATF2 and plasminogen activator inhibitor-1. (PAI-1). Cell apoptosis was determined by flow cytometry; β-catenin cellular localization was visualized by immunofluorescent staining. RESULTS Calycosin up-regulated the expression of BATF2 via the signal transducer and activator of transcription 3 (STAT3) pathway, which was antagonized by transforming growth factor beta (TGF-β), calycosin promoted the cell apoptosis and growth inhibition via phosphoinositide 3-kinase (PI3K)/Akt pathway. TGF-β promoted cell growth, which was inhibited by calycosin regulating the expression of proliferating cell nuclear antigen (PCNA) via the phosphoinositide 3-kinase pathway. TGF-β suppressed expression of BAX via the phosphoinositide 3-kinase pathway but induced cell apoptosis .calycosin enhanced the effect of TGF-β on cell apoptosis,In addition, calycosin suppressed TGF-β-induced cell migration by increasing BATF2 to target PAI-1. TGF-β-induced EMT was inhibited by calycosin in human CRC LoVo and HCT116 cell lines via the Wnt signaling pathway. CONCLUSIONS The induction of BATF2 by calycosin may be a feasible therapeutic option for CRC. .
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Affiliation(s)
- Qun Wang
- Department of Hepatopancreatobiliary Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, People's Republic of China. .,Department of Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430079, People's Republic of China. .,Colorectal Cancer Clinical Research Center of Wuhan, Wuhan, Hubei, 430079, People's Republic of China. .,Colorectal Cancer Clinical Research Center of Hubei Province, Wuhan, Hubei, 430079, People's Republic of China.
| | - Weijun Lu
- Department of Hepatopancreatobiliary Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, People's Republic of China.,Department of Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430079, People's Republic of China
| | - Tao Yin
- Department of Hepatopancreatobiliary Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, People's Republic of China.,Department of Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430079, People's Republic of China
| | - Li Lu
- Department of Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430079, People's Republic of China. .,Colorectal Cancer Clinical Research Center of Wuhan, Wuhan, Hubei, 430079, People's Republic of China. .,Colorectal Cancer Clinical Research Center of Hubei Province, Wuhan, Hubei, 430079, People's Republic of China. .,Department of Gastrointestinal Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, People's Republic of China.
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11
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Desmots F, Roussel M, Pangault C, Llamas-Gutierrez F, Pastoret C, Guiheneuf E, Le Priol J, Camara-Clayette V, Caron G, Henry C, Belaud-Rotureau MA, Godmer P, Lamy T, Jardin F, Tarte K, Ribrag V, Fest T. Pan-HDAC Inhibitors Restore PRDM1 Response to IL21 in CREBBP-Mutated Follicular Lymphoma. Clin Cancer Res 2018; 25:735-746. [DOI: 10.1158/1078-0432.ccr-18-1153] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 07/26/2018] [Accepted: 10/17/2018] [Indexed: 11/16/2022]
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12
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Morman RE, Schweickert PG, Konieczny SF, Taparowsky EJ. BATF regulates the expression of Nfil3, Wnt10a and miR155hg for efficient induction of antibody class switch recombination in mice. Eur J Immunol 2018; 48:1492-1505. [PMID: 29898247 DOI: 10.1002/eji.201747360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 05/14/2018] [Accepted: 06/08/2018] [Indexed: 12/16/2022]
Abstract
BATF functions in T cells and B cells to control the host response to antigen and promote the production of class switched immunoglobulins. In this study, we demonstrate that BATF expression increases rapidly, and transiently, following B cell stimulation and use an inducible murine model of BATF deletion to show that this induction is necessary, and sufficient, for immunoglobulin (Ig) class switch recombination (CSR). We examine two genes (Nfil3 and miR155gh) that are positively regulated, and one gene (Wnt10a) that is negatively regulated by BATF during CSR. These genes play essential roles in CSR and each impacts the expression and/or function of the others. Our observations allow these targets of BATF regulation to be positioned in a network upstream of the activation of germline transcripts (GLT) from the IgH locus and of transcriptional activation of Aicda - the gene encoding the enzyme directing Ig gene rearrangements. This work extends the knowledge of the molecular control of CSR and, importantly, positions the induction and function of BATF as an early event in this process.
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Affiliation(s)
- Rosemary E Morman
- Department of Biological Sciences and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Patrick G Schweickert
- Department of Biological Sciences and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Stephen F Konieczny
- Department of Biological Sciences and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Elizabeth J Taparowsky
- Department of Biological Sciences and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA
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13
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Increased BATF expression is associated with the severity of liver damage in patients with chronic hepatitis B. Clin Exp Med 2017; 18:263-272. [PMID: 29164410 DOI: 10.1007/s10238-017-0480-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 11/12/2017] [Indexed: 12/29/2022]
Abstract
T helper (Th) 17 cells have a critical role in the pathogenesis of chronic hepatitis B virus (HBV) infection, and basic leucine zipper transcription factor, ATF-like (BATF) is a newly identified transcriptional factor regulating the differentiation of Th17 cells. However, its precise role in patients with chronic hepatitis B remains unclear. Sixty chronic hepatitis B (CHB) patients, twenty-two acute-on-chronic hepatitis B liver failure (ACHBLF) patients and seventeen healthy controls were included in our study. Both peripheral and intrahepatic expressions of BATF were analyzed by flow cytometry, quantitative real-time polymerase chain reaction and immunohistochemical staining. Peripheral BATF mRNA and protein expression levels were higher in CHB patients than those in healthy controls. Particularly in ACHBLF patients, the BATF mRNA and protein levels were further increased over those in CHB patients. Intrahepatic BATF-positive infiltrating cells were enriched in portal area of CHB patients, and more positive cells were found in patients with higher inflammation grade. Peripheral BATF expression was positively correlated with serum parameters of liver injury and plasma HBV DNA load. Furthermore, a positive correlation was found between the frequency of BATF-positive CD3+ T cells and the increased Th17 response in chronic HBV-infected patients. BATF over-expression might augment Th17 cell response and relate to the disease progression of CHB.
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14
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Sopel N, Graser A, Mousset S, Finotto S. The transcription factor BATF modulates cytokine-mediated responses in T cells. Cytokine Growth Factor Rev 2016; 30:39-45. [PMID: 26970726 DOI: 10.1016/j.cytogfr.2016.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The transcription factor BATF (basic leucine zipper transcription factor, ATF-like), belongs to the AP-1 family of transcription factors and has been shown to be predominantly expressed in cells of haematopoietic origin, especially in B and T cells. In studies using Batf-deficient mice, a profound defect in the differentiation of T helper cells type 17 (Th17) and follicular T helper cells (Tfh) was described, as well as an impairment of antibody production with switched isotypes. More recently BATF has been described to influence also Th2 and Th9 responses in models of murine experimental asthma. In CD8(+) T cells BATF has been found associated with anti-viral responses. This review summarizes the role of BATF in CD4(+) T cell subsets and in CD8(+) T cells, with particular focus on this transcription factor in the setting of allergic asthma.
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Affiliation(s)
- Nina Sopel
- Department of Molecular Pneumology, Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Anna Graser
- Department of Molecular Pneumology, Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Stephanie Mousset
- Department of Molecular Pneumology, Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany.
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15
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Gil M, Pak HK, Park SJ, Lee AN, Park YS, Lee H, Lee H, Kim KE, Lee KJ, Yoon DH, Chung YS, Park CS. Engagement of CD99 Reduces AP-1 Activity by Inducing BATF in the Human Multiple Myeloma Cell Line RPMI8226. Immune Netw 2015; 15:260-7. [PMID: 26557810 PMCID: PMC4637347 DOI: 10.4110/in.2015.15.5.260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/28/2015] [Accepted: 10/18/2015] [Indexed: 12/01/2022] Open
Abstract
CD99 signaling is crucial to a diverse range of biological functions including survival and proliferation. CD99 engagement is reported to augment activator protein-1 (AP-1) activity through mitogen-activated protein (MAP) kinase pathways in a T-lymphoblastic lymphoma cell line Jurkat and in breast cancer cell lines. In this study, we report that CD99 differentially regulated AP-1 activity in the human myeloma cell line RPMI8226. CD99 was highly expressed and the CD99 engagement led to activation of the MAP kinases, but suppressed AP-1 activity by inducing the expression of basic leucine zipper transcription factor, ATF-like (BATF), a negative regulator of AP-1 in RPMI8226 cells. By contrast, engagement of CD99 enhanced AP-1 activity and did not change the BATF expression in Jurkat cells. CD99 engagement reduced the proliferation of RPMI8226 cells and expression of cyclin 1 and 3. Overall, these results suggest novel CD99 functions in RPMI8226 cells.
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Affiliation(s)
- Minchan Gil
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hyo-Kyung Pak
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Seo-Jeong Park
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - A-Neum Lee
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Young-Soo Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hyangsin Lee
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hyunji Lee
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Kyung-Eun Kim
- SIS Immunology Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Kyung Jin Lee
- Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Dok Hyun Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Yoo-Sam Chung
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Chan-Sik Park
- Cell Dysfunction Research Center, University of Ulsan College of Medicine, Seoul 05505, Korea. ; Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
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16
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Zhang X, Gao L, Liu ZP, Chen L. Identifying module biomarker in type 2 diabetes mellitus by discriminative area of functional activity. BMC Bioinformatics 2015; 16:92. [PMID: 25888350 PMCID: PMC4374500 DOI: 10.1186/s12859-015-0519-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 02/24/2015] [Indexed: 02/07/2023] Open
Abstract
Background Identifying diagnosis and prognosis biomarkers from expression profiling data is of great significance for achieving personalized medicine and designing therapeutic strategy in complex diseases. However, the reproducibility of identified biomarkers across tissues and experiments is still a challenge for this issue. Results We propose a strategy based on discriminative area of module activities to identify gene biomarkers which interconnect as a subnetwork or module by integrating gene expression data and protein-protein interactions. Then, we implement the procedure in T2DM as a case study and identify a module biomarker with 32 genes from mRNA expression data in skeletal muscle for T2DM. This module biomarker is enriched with known causal genes and related functions of T2DM. Further analysis shows that the module biomarker is of superior performance in classification, and has consistently high accuracies across tissues and experiments. Conclusion The proposed approach can efficiently identify robust and functionally meaningful module biomarkers in T2DM, and could be employed in biomarker discovery of other complex diseases characterized by expression profiles. Electronic supplementary material The online version of this article (doi:10.1186/s12859-015-0519-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xindong Zhang
- School of Computer Science and Technology, Xidian University, Xi'an, 710000, China. .,Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Lin Gao
- School of Computer Science and Technology, Xidian University, Xi'an, 710000, China. .,Institute of Industrial Science, University of Tokyo, Tokyo, 153-8505, Japan.
| | - Zhi-Ping Liu
- Department of Biomedical Engineering, School of Control Science and Engineering, Shandong University, Shandong, 250061, China.
| | - Luonan Chen
- Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China. .,Institute of Industrial Science, University of Tokyo, Tokyo, 153-8505, Japan. .,School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
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17
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Balabko L, Andreev K, Burmann N, Schubert M, Mathews M, Trufa DI, Reppert S, Rau T, Schicht M, Sirbu H, Hartmann A, Finotto S. Increased expression of the Th17-IL-6R/pSTAT3/BATF/RorγT-axis in the tumoural region of adenocarcinoma as compared to squamous cell carcinoma of the lung. Sci Rep 2014; 4:7396. [PMID: 25491772 PMCID: PMC4261178 DOI: 10.1038/srep07396] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/12/2014] [Indexed: 01/05/2023] Open
Abstract
Here we describe increased expression of IL6R in the tumoural region of lung tissue from patients affected by lung adenocarcinoma as compared to squamous cell lung carcinoma. Moreover, here we found increased IL6R in the tumour free part of the lung. By using a murine model of lung adenocarcinoma, we discovered that few lung tumour cells expressed IL-6R and CD4+CD25+Foxp-3+ T regulatory cells down-regulated IL-6R in the tumour bearing lungs. Downstream of IL-6R, the Th17 lineage-specification factors: Signal transducer and activator of transcription 3 (STAT3), Basic leucine zipper transcription factor, BATF and a protein encoded by the RORC in human (RAR-related orphan receptor C) (RORγT), were also found induced in the tumoural region of lung tissue from patients affected by lung adenocarcinoma as compared to those carrying squamous cell carcinoma. Moreover, pSTAT3 protein was found phosphorylated and auto-phosphorylated in the tumoural region of patients with adeno cell carcinoma of the lung as compared to the tumoural region of patients with squamous cell carcinoma of the lung. Intranasal application of anti-IL-6R antibodies in a murine model of lung adenocarcinoma, induced T regulatory cell markers such as Foxp3, Ctla4, Icos, Il10, Il21, Folr4 and Lag3 and inhibited Rorc in lung adenocarcinoma.
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Affiliation(s)
- Ljubov Balabko
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Katerina Andreev
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Nadine Burmann
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Melanie Schubert
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Martina Mathews
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Denis I Trufa
- Department of Thoracic Surgery, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sarah Reppert
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Tilmann Rau
- Institute of Pathology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Martin Schicht
- Department of Anatomy II, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Arndt Hartmann
- Institute of Pathology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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18
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Figlioli G, Köhler A, Chen B, Elisei R, Romei C, Cipollini M, Cristaudo A, Bambi F, Paolicchi E, Hoffmann P, Herms S, Kalemba M, Kula D, Pastor S, Marcos R, Velázquez A, Jarząb B, Landi S, Hemminki K, Försti A, Gemignani F. Novel genome-wide association study-based candidate loci for differentiated thyroid cancer risk. J Clin Endocrinol Metab 2014; 99:E2084-92. [PMID: 25029422 DOI: 10.1210/jc.2014-1734] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Genome-wide association studies (GWASs) on differentiated thyroid cancer (DTC) have identified robust associations with single nucleotide polymorphisms (SNPs) at 9q22.33 (FOXE1), 14q13.3 (NKX2-1), and 2q35 (DIRC3). Our recently published GWAS suggested additional susceptibility loci specific for the high-incidence Italian population. OBJECTIVE The purpose of this study was to identify novel Italian-specific DTC risk variants based on our GWAS and to test them further in low-incidence populations. DESIGN We investigated 45 SNPs selected from our GWAS first in an Italian population. SNPs that showed suggestive evidence of association were investigated in the Polish and Spanish cohorts. RESULTS The combined analysis of the GWAS and the Italian replication study (2260 case patients and 2218 control subjects) provided strong evidence of association with rs10136427 near BATF (odds ratio [OR] =1.40, P = 4.35 × 10(-7)) and rs7267944 near DHX35 (OR = 1.39, P = 2.13 × 10(-8)). A possible role in DTC susceptibility in the Italian populations was also found for rs13184587 (ARSB) (P = 8.54 × 10(-6)) and rs1220597 (SPATA13) (P = 3.25 × 10(-6)). Only the associations between rs10136427 and rs7267944 and DTC risk were replicated in the Polish and the Spanish populations with little evidence of population heterogeneity (GWAS and all replications combined, OR = 1.30, P = 9.30 × 10(-7) and OR = 1.32, P = 1.34 × 10(-8), respectively). In silico analyses provided new insights into the possible functional consequences of the SNPs that showed the strongest association with DTC. CONCLUSIONS Our findings provide evidence for novel DTC susceptibility variants. Further studies are warranted to identify the specific genetic variants responsible for the observed associations and to functionally validate our in silico predictions.
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Affiliation(s)
- Gisella Figlioli
- Department of Biology (G.F., M.C., E.P., S.L., F.G.), University of Pisa, 56123 Pisa, Italy; Molecular Genetic Epidemiology (A.K., B.C., K.H., A.F.), German Cancer Research Center, 69120 Heidelberg, Germany; Department of Endocrinology and Metabolism (R.E., C.R., A.C.), University of Pisa, 56124 Pisa, Italy; Blood Centre (F.B.), Azienda Ospedaliero Universitaria A. Meyer, 50139 Firenze, Italy; Department of Genomics (P.H., S.H.), Life and Brain Center and Institute of Human Genetics (P.H., S.H.), University of Bonn, D-53127 Bonn, Germany; Division of Medical Genetics (P.H., S.H.), University Hospital Basel and Department of Biomedicine, University of Basel, CH-4058 Basel, Switzerland; Department of Nuclear Medicine and Endocrine Oncology (M.K., D.K., B.J.), Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, 44-101 Gliwice, Poland; Grup de Mutagènesi (S.P., R.M., A.V.), Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Barcelona, Spain; Centro de Investigación Biomédica en Red y Epidemiologia y Salud Pública (S.P., R.M., A.V.), Instituto de Salud Carlos III, 28029 Madrid, Spain; and Center for Primary Health Care Research (K.H., A.F.), Clinical Research Center, Lund University, 205 02 Malmö, Sweden
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19
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Abstract
Human UTX, a member of the Jumonji C family of proteins, associates with mixed-lineage leukemia 3/4 complexes. Stimulation with retinoic acid leads to the recruitment of UTX-containing complexes to HOX genes, which results in demethylation of histone H3 lysine 27 and concomitant methylation of histone H3 lysine 4. Here, we show that UTX interacts with the retinoic acid receptor α (RARα) and that this interaction is essential for proper differentiation of leukemic U937 cells in response to retinoic acid. UTX occupies the promoters of several RAR target genes and regulates their transcriptional output by modulating ASH2L complex recruitment. Overexpression of UTX in promyelocytic NB4 cells results in enhanced cellular differentiation upon retinoic acid treatment. Our results show that UTX is important for RAR-mediated transcription and provide insight into the critical role of cross talk between histone H3 lysine 4 methylation and histone H3 lysine 27 demethylation during cellular differentiation.
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20
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Jabeen R, Goswami R, Awe O, Kulkarni A, Nguyen ET, Attenasio A, Walsh D, Olson MR, Kim MH, Tepper RS, Sun J, Kim CH, Taparowsky EJ, Zhou B, Kaplan MH. Th9 cell development requires a BATF-regulated transcriptional network. J Clin Invest 2014; 123:4641-53. [PMID: 24216482 DOI: 10.1172/jci69489] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 08/08/2013] [Indexed: 12/24/2022] Open
Abstract
T helper 9 (Th9) cells are specialized for the production of IL-9, promote allergic inflammation in mice, and are associated with allergic disease in humans. It has not been determined whether Th9 cells express a characteristic transcriptional signature. In this study, we performed microarray analysis to identify genes enriched in Th9 cells compared with other Th subsets. This analysis defined a transcriptional regulatory network required for the expression of a subset of Th9-enriched genes. The activator protein 1 (AP1) family transcription factor BATF (B cell, activating transcription factor–like) was among the genes enriched in Th9 cells and was required for the expression of IL-9 and other Th9-associated genes in both human and mouse T cells. The expression of BATF was increased in Th9 cultures derived from atopic infants compared with Th9 cultures from control infants. T cells deficient in BATF expression had a diminished capacity to promote allergic inflammation compared with wild-type controls. Moreover, mouse Th9 cells ectopically expressing BATF were more efficient at promoting allergic inflammation than control transduced cells. These data indicate that BATF is a central regulator of the Th9 phenotype and contributes to the development of allergic inflammation.
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MESH Headings
- Adoptive Transfer
- Animals
- Basic-Leucine Zipper Transcription Factors/deficiency
- Basic-Leucine Zipper Transcription Factors/genetics
- Basic-Leucine Zipper Transcription Factors/metabolism
- Cell Lineage/genetics
- Cell Lineage/immunology
- Humans
- Hypersensitivity/etiology
- Hypersensitivity/immunology
- Hypersensitivity/metabolism
- Hypersensitivity, Immediate/genetics
- Hypersensitivity, Immediate/immunology
- Hypersensitivity, Immediate/metabolism
- Infant
- Inflammation/etiology
- Inflammation/immunology
- Inflammation/metabolism
- Interferon Regulatory Factors/deficiency
- Interferon Regulatory Factors/genetics
- Interferon Regulatory Factors/metabolism
- Interleukin-9/biosynthesis
- Interleukin-9/genetics
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Oligonucleotide Array Sequence Analysis
- T-Lymphocyte Subsets/classification
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Helper-Inducer/classification
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- Transcription, Genetic
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21
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Hardee J, Ouyang Z, Zhang Y, Kundaje A, Lacroute P, Snyder M. STAT3 targets suggest mechanisms of aggressive tumorigenesis in diffuse large B-cell lymphoma. G3 (BETHESDA, MD.) 2013; 3:2173-85. [PMID: 24142927 PMCID: PMC3852380 DOI: 10.1534/g3.113.007674] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 10/05/2013] [Indexed: 01/02/2023]
Abstract
The signal transducer and activator of transcription 3 (STAT3) is a transcription factor that, when dysregulated, becomes a powerful oncogene found in many human cancers, including diffuse large B-cell lymphoma. Diffuse large B-cell lymphoma is the most common form of non-Hodgkin's lymphoma and has two major subtypes: germinal center B-cell-like and activated B-cell-like. Compared with the germinal center B-cell-like form, activated B-cell-like lymphomas respond much more poorly to current therapies and often exhibit overexpression or overactivation of STAT3. To investigate how STAT3 might contribute to this aggressive phenotype, we have integrated genome-wide studies of STAT3 DNA binding using chromatin immunoprecipitation-sequencing with whole-transcriptome profiling using RNA-sequencing. STAT3 binding sites are present near almost a third of all genes that differ in expression between the two subtypes, and examination of the affected genes identified previously undetected and clinically significant pathways downstream of STAT3 that drive oncogenesis. Novel treatments aimed at these pathways may increase the survivability of activated B-cell-like diffuse large B-cell lymphoma.
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Affiliation(s)
- Jennifer Hardee
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
- Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06520
| | - Zhengqing Ouyang
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
| | - Yuping Zhang
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
| | - Anshul Kundaje
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
- Department of Computer Science, Stanford University School of Engineering, Stanford, California 94305
| | - Philippe Lacroute
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
| | - Michael Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305
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22
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Jordan-Williams KL, Poston S, Taparowsky EJ. BATF regulates the development and function of IL-17 producing iNKT cells. BMC Immunol 2013; 14:16. [PMID: 23537103 PMCID: PMC3621619 DOI: 10.1186/1471-2172-14-16] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 03/05/2013] [Indexed: 02/08/2023] Open
Abstract
Background BATF plays important roles in the function of the immune system. Batf null mice are deficient in both CD4+ Th17 cells and T follicular helper cells and possess an intrinsic B cell defect that leads to the complete absence of class switched Ig. In this study, Tg mice overexpressing BATF in T cells were used together with Batf null mice to investigate how altering levels of BATF expression in T cells impacts the development and function of a recently characterized population of iNKT cells expressing IL-17 (iNKT-17). Results BATF has a direct impact on IL-17 expression by iNKT cells. However, in contrast to the Th17 lineage where BATF activates IL-17 expression and leads to the expansion of the lineage, BATF overexpression restricts overall iNKT cell numbers while skewing the compartment in vivo and in vitro toward an iNKT-17 phenotype. Conclusions This work is the first to demonstrate that BATF joins RORγt as the molecular signature for all IL-17 producing cells in vivo and identifies BATF as a component of the nuclear protein network that could be targeted to regulate IL-17-mediated disease. Interestingly, these studies also reveal that while the Il17a gene is a common target for BATF regulation in Th17 and iNKT-17 cells, this regulation is accompanied by opposite effects on the growth and expansion of these two cell lineages.
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Affiliation(s)
- Kimberly L Jordan-Williams
- Department of Biological Sciences and Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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23
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Logan MR, Jordan-Williams KL, Poston S, Liao J, Taparowsky EJ. Overexpression of Batf induces an apoptotic defect and an associated lymphoproliferative disorder in mice. Cell Death Dis 2012; 3:e310. [PMID: 22592317 PMCID: PMC3366083 DOI: 10.1038/cddis.2012.49] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Activator protein-1 (AP-1) is a dimeric transcription factor composed of the Jun, Fos and Atf families of proteins. Batf is expressed in the immune system and participates in AP-1 dimers that modulate gene expression in response to a variety of stimuli. Transgenic (Tg) mice overexpressing human BATF in T cells were generated using the human CD2 promoter (CD2-HA (hemagglutinin antigen) - BATF). By 1 year of age, over 90% of the mice developed a lymphoproliferative disorder (LPD). The enlarged lymph nodes characteristic of this LPD contain a polyclonal accumulation of T cells with a CD4+ bias, yet efforts to propagate these tumor cells in vitro demonstrate that they do not proliferate as well as wild-type CD4+ T cells. Instead, the accumulation of these cells is likely due to an apoptotic defect as CD2-HA-BATF Tg T cells challenged by trophic factor withdrawal in vitro resist apoptosis and display a pro-survival pattern of Bcl-2 family protein expression. As elevated levels of Batf expression are a feature of lymphoid tumors in both humans and mice, these observations support the use of CD2-HA-BATF mice as a model for investigating the molecular details of apoptotic dysregulation in LPD.
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Affiliation(s)
- M R Logan
- Department of Biological Sciences, College of Science, Purdue University, West Lafayette, IN 47907-2064, USA
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24
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Abstract
Aging of hematopoietic stem cells (HSCs) is accompanied by diminished functional potential. Wang et al. now provide evidence for an HSC-specific differentiation checkpoint mediated by the transcription factor BATF, which limits self-renewal of HSCs in response to the accumulation of DNA damage.
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25
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Abstract
Sequences of molecular events that initiate and advance the progression of human colorectal cancer (CRC) are becoming clearer. Accepting that these events, once they are in place, accumulate over time, rapid disease progression might be expected. Yet CRC usually develops slowly over decades. Emerging insights suggest that the tumor cell microenvironment encompassing fibroblasts and endothelial and immune cells dictate when, whether, and how malignancies progress. Signaling pathways that affect the microenvironment and the inflammatory response seem to play a central role in CRC. Indeed, some of these pathways directly regulate the stem/progenitor cell niche at the base of the crypt; it now appears that the survival and growth of neoplastic cells often relies upon their subverted engagement of these pathways. Spurned on by the use of gene manipulation technologies in the mouse, dissecting and recapitulating these complex molecular interactions between the tumor and its microenvironment in the gastrointestinal (GI) tract is a reality. In parallel, our ability to isolate and grow GI stem cells in vitro enables us, for the first time, to complement reductionist in vitro findings with complex in vivo observations. Surprisingly, data suggest that the large number of signaling pathways underpinning the reciprocal interaction between the neoplastic epithelium and its microenvironment converge on a small number of common transcription factors. Here, we review the separate and interactive roles of NFκB, Stat3, and Myb, transcription factors commonly overexpressed or excessively activated in CRC. They confer molecular links between inflammation, stroma, the stem cell niche, and neoplastic cell growth.
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Affiliation(s)
- Matthias Ernst
- Ludwig Institute for Cancer Research, Melbourne, Victoria, Australia
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