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Titcombe PJ, Silva Morales M, Zhang N, Mueller DL. BATF represses BIM to sustain tolerant T cells in the periphery. J Exp Med 2023; 220:e20230183. [PMID: 37862030 PMCID: PMC10588758 DOI: 10.1084/jem.20230183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 08/13/2023] [Accepted: 10/05/2023] [Indexed: 10/21/2023] Open
Abstract
T cells that encounter self-antigens after exiting the thymus avert autoimmunity through peripheral tolerance. Pathways for this include an unresponsive state known as anergy, clonal deletion, and T regulatory (Treg) cell induction. The transcription factor cues and kinetics that guide distinct peripheral tolerance outcomes remain unclear. Here, we found that anergic T cells are epigenetically primed for regulation by the non-classical AP-1 family member BATF. Tolerized BATF-deficient CD4+ T cells were resistant to anergy induction and instead underwent clonal deletion due to proapoptotic BIM (Bcl2l11) upregulation. During prolonged antigen exposure, BIM derepression resulted in fewer PD-1+ conventional T cells as well as loss of peripherally induced FOXP3+ Treg cells. Simultaneous Batf and Bcl2l11 knockdown meanwhile restored anergic T cell survival and Treg cell maintenance. The data identify the AP-1 nuclear factor BATF as a dominant driver of sustained T cell anergy and illustrate a mechanism for divergent peripheral tolerance fates.
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Affiliation(s)
- Philip J. Titcombe
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Milagros Silva Morales
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Na Zhang
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Daniel L. Mueller
- Department of Medicine, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
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Jain N, Zhao Z, Feucht J, Koche R, Iyer A, Dobrin A, Mansilla-Soto J, Yang J, Zhan Y, Lopez M, Gunset G, Sadelain M. TET2 guards against unchecked BATF3-induced CAR T cell expansion. Nature 2023; 615:315-322. [PMID: 36755094 PMCID: PMC10511001 DOI: 10.1038/s41586-022-05692-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/30/2022] [Indexed: 02/10/2023]
Abstract
Further advances in cell engineering are needed to increase the efficacy of chimeric antigen receptor (CAR) and other T cell-based therapies1-5. As T cell differentiation and functional states are associated with distinct epigenetic profiles6,7, we hypothesized that epigenetic programming may provide a means to improve CAR T cell performance. Targeting the gene that encodes the epigenetic regulator ten-eleven translocation 2 (TET2)8 presents an interesting opportunity as its loss may enhance T cell memory9,10, albeit not cause malignancy9,11,12. Here we show that disruption of TET2 enhances T cell-mediated tumour rejection in leukaemia and prostate cancer models. However, loss of TET2 also enables antigen-independent CAR T cell clonal expansions that may eventually result in prominent systemic tissue infiltration. These clonal proliferations require biallelic TET2 disruption and sustained expression of the AP-1 factor BATF3 to drive a MYC-dependent proliferative program. This proliferative state is associated with reduced effector function that differs from both canonical T cell memory13,14 and exhaustion15,16 states, and is prone to the acquisition of secondary somatic mutations, establishing TET2 as a guardian against BATF3-induced CAR T cell proliferation and ensuing genomic instability. Our findings illustrate the potential of epigenetic programming to enhance T cell immunity but highlight the risk of unleashing unchecked proliferative responses.
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Affiliation(s)
- Nayan Jain
- Louis V. Gerstner Jr Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Zeguo Zhao
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Judith Feucht
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
- University Children's Hospital, Tübingen, Germany
| | - Richard Koche
- Centre for Epigenetics Research, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Archana Iyer
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Anton Dobrin
- Louis V. Gerstner Jr Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Jorge Mansilla-Soto
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Julie Yang
- Centre for Epigenetics Research, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Yingqian Zhan
- Centre for Epigenetics Research, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Michael Lopez
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Gertrude Gunset
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA
| | - Michel Sadelain
- Centre for Cell Engineering and Immunology Program, Memorial Sloan Kettering Cancer Centre, New York, NY, USA.
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Oladipo OO, Adedeji BO, Adedokun SP, Gbadamosi JA, Salaudeen M. Regulation of effector and memory CD8 + T cell differentiation: a focus on orphan nuclear receptor NR4A family, transcription factor, and metabolism. Immunol Res 2022; 71:314-327. [PMID: 36571657 DOI: 10.1007/s12026-022-09353-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/16/2022] [Indexed: 12/27/2022]
Abstract
CD8 + T cells undergo rapid expansion followed by contraction and the development of memory cells after their receptors are activated. The development of immunological memory following acute infection is a complex phenomenon that involves several molecular, transcriptional, and metabolic mechanisms. As memory cells confer long-term protection and respond to secondary stimulation with strong effector function, understanding the mechanisms that influence their development is of great importance. Orphan nuclear receptors, NR4As, are immediate early genes that function as transcription factors and bind with the NBRE region of chromatin. Interestingly, the NBRE region of activated CD8 + T cells is highly accessible at the same time the expression of NR4As is induced. This suggests a potential role of NR4As in the early events post T cell activation that determines cell fate decisions. In this review, we will discuss the influence of NR4As on the differentiation of CD8 + T cells during the immune response to acute infection and the development of immunological memory. We will also discuss the signals, transcription factors, and metabolic mechanisms that control cell fate decisions. HIGHLIGHTS: Memory CD8 + T cells are an essential subset that mediates long-term protection after pathogen encounters. Some specific environmental cues, transcriptional factors, and metabolic pathways regulate the differentiation of CD8 + T cells and the development of memory cells. Orphan nuclear receptor NR4As are early genes that act as transcription factors and are highly expressed post-T cell receptor activation. NR4As influence the effector function and differentiation of CD8 + T cells and also control the development of immunological memory following acute infection.
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Affiliation(s)
- Oladapo O Oladipo
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria.
- College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria.
| | - Bernard O Adedeji
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
- College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
- Department of Biochemistry and Nutrition, Nigerian Institute of Medical Research (NIMR), Yaba, Lagos, Nigeria
| | - Samson P Adedokun
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
- College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
| | - Jibriil A Gbadamosi
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
- College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
| | - Marzuq Salaudeen
- Department of Physiology, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
- College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria
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Liu Q, Kim MH, Friesen L, Kim CH. BATF regulates innate lymphoid cell hematopoiesis and homeostasis. Sci Immunol 2020; 5:eaaz8154. [PMID: 33277375 PMCID: PMC8375455 DOI: 10.1126/sciimmunol.aaz8154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 06/01/2020] [Accepted: 11/09/2020] [Indexed: 12/31/2022]
Abstract
Early hematopoietic progenitors undergo sophisticated developmental processes to become committed innate lymphoid cell (ILC) progenitors and ultimately mature ILC subsets in the periphery. Basic leucine zipper ATF-like transcription factor (Batf) plays important roles in lymphocyte biology. We report here that Batf regulates the production of bone marrow ILC progenitors and maintenance of peripheral ILCs. The expression of Batf is induced during ILC development at the α-lymphoid progenitor stage in response to the cytokine IL-7. As a potential mechanism, up-regulated Batf binds and activates transcription of the Nfil3 gene to promote ILC hematopoiesis. Batf is necessary to maintain normal numbers of early and late ILC progenitors in the bone marrow and mature ILC1, ILC2, ILC3, and NK cells in most peripheral tissues. Batf deficiency causes ILC lymphopenia, leading to defective ILC responses to inflammatory cytokines and defective immunity to enteric bacterial infections. Thus, Batf plays critical roles in bone marrow hematopoiesis, peripheral homeostasis, and effector functions of ILCs.
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Affiliation(s)
- Qingyang Liu
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
- Mary H. Weiser Food Allergy Center, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
| | - Myung H Kim
- Laboratory of Immunology and Hematopoiesis, Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA
| | - Leon Friesen
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
- Mary H. Weiser Food Allergy Center, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
| | - Chang H Kim
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA.
- Mary H. Weiser Food Allergy Center, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
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Alsagaby SA, Vijayakumar R, Premanathan M, Mickymaray S, Alturaiki W, Al-Baradie RS, AlGhamdi S, Aziz MA, Alhumaydhi FA, Alzahrani FA, Alwashmi AS, Al Abdulmonem W, Alharbi NK, Pepper C. Transcriptomics-Based Characterization of the Toxicity of ZnO Nanoparticles Against Chronic Myeloid Leukemia Cells. Int J Nanomedicine 2020; 15:7901-7921. [PMID: 33116508 PMCID: PMC7568638 DOI: 10.2147/ijn.s261636] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/19/2020] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Zinc oxide nanoparticles (ZnO NPs) have recently attracted attention as potential anti-cancer agents. To the best of our knowledge, the toxicity of ZnO NPs against human chronic myeloid leukemia cells (K562 cell line) has not been studied using transcriptomics approach. OBJECTIVE The goals of this study were to evaluate the capability of ZnO NPs to induce apoptosis in human chronic myeloid leukemia cells (K562 cells) and to investigate the putative mechanisms of action. METHODS We used viability assay and flowcytometry coupled with Annexin V-FITC and propidium iodide to investigate the toxicity of ZnO NPs on K562 cells and normal peripheral blood mononuclear cells. Next we utilized a DNA microarray-based transcriptomics approach to characterize the ZnO NPs-induced changes in the transcriptome of K562 cells. RESULTS ZnO NPs exerted a selective toxicity (mainly by apoptosis) on the leukemic cells (p≤0.005) and altered their transcriptome; 429 differentially expressed genes (DEGs) with fold change (FC)≥4 and p≤0.008 with corrected p≤0.05 were identified in K562 cells post treatment with ZnO NPs. The over-expressed genes were implicated in "response to zinc", "response to toxic substance" and "negative regulation of growth" (corrected p≤0.05). In contrast, the repressed genes positively regulated "cell proliferation", "cell migration", "cell adhesion", "receptor signaling pathway via JAK-STAT" and "phosphatidylinositol 3-kinase signaling" (corrected p≤0.05). Lowering the FC to ≥1.5 with p≤0.05 and corrected p≤0.1 showed that ZnO NPs over-expressed the anti-oxidant defense system, drove K562 cells to undergo mitochondrial-dependent apoptosis, and targeted NF-κB pathway. CONCLUSION Taken together, our findings support the earlier studies that reported anti-cancer activity of ZnO NPs and revealed possible molecular mechanisms employed by ZnO NPs to induce apoptosis in K562 cells.
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Affiliation(s)
- Suliman A Alsagaby
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Rajendran Vijayakumar
- Department of Biology, College of Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Mariappan Premanathan
- Department of Biology, College of Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Suresh Mickymaray
- Department of Biology, College of Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Wael Alturaiki
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Raid S Al-Baradie
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah11932, Saudi Arabia
| | - Saleh AlGhamdi
- Clinical Research Department, Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh11426, Saudi Arabia
| | - Mohammad A Aziz
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh11426, Saudi Arabia
- Colorectal Cancer Research Program, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Fahad A Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Faisal A Alzahrani
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah21589, Saudi Arabia
| | - Ameen S Alwashmi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Naif Khalaf Alharbi
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh11426, Saudi Arabia
- Department of Infectious Disease Research, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Chris Pepper
- Brighton and Sussex Medical School, University of Sussex, Brighton, UK
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Ataide MA, Komander K, Knöpper K, Peters AE, Wu H, Eickhoff S, Gogishvili T, Weber J, Grafen A, Kallies A, Garbi N, Einsele H, Hudecek M, Gasteiger G, Hölzel M, Vaeth M, Kastenmüller W. BATF3 programs CD8 + T cell memory. Nat Immunol 2020; 21:1397-407. [PMID: 32989328 DOI: 10.1038/s41590-020-0786-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 08/17/2020] [Indexed: 12/29/2022]
Abstract
Antiviral CD8+ T cell responses are characterized by an initial activation/priming of T lymphocytes followed by a massive proliferation, subset differentiation, population contraction and the development of a stable memory pool. The transcription factor BATF3 has been shown to play a central role in the development of conventional dendritic cells, which in turn are critical for optimal priming of CD8+ T cells. Here we show that BATF3 was expressed transiently within the first days after T cell priming and had long-lasting T cell-intrinsic effects. T cells that lacked Batf3 showed normal expansion and differentiation, yet succumbed to an aggravated contraction and had a diminished memory response. Vice versa, BATF3 overexpression in CD8+ T cells promoted their survival and transition to memory. Mechanistically, BATF3 regulated T cell apoptosis and longevity via the proapoptotic factor BIM. By programing CD8+ T cell survival and memory, BATF3 is a promising molecule to optimize adoptive T cell therapy in patients.
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Lollies A, Hartmann S, Schneider M, Bracht T, Weiß AL, Arnolds J, Klein-Hitpass L, Sitek B, Hansmann ML, Küppers R, Weniger MA. An oncogenic axis of STAT-mediated BATF3 upregulation causing MYC activity in classical Hodgkin lymphoma and anaplastic large cell lymphoma. Leukemia 2017; 32:92-101. [PMID: 28659618 DOI: 10.1038/leu.2017.203] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/13/2017] [Accepted: 06/16/2017] [Indexed: 02/07/2023]
Abstract
Classical Hodgkin lymphoma (cHL) and anaplastic large cell lymphoma (ALCL) feature high expression of activator protein-1 (AP-1) transcription factors, which regulate various physiological processes but also promote lymphomagenesis. The AP-1 factor basic leucine zipper transcription factor, ATF-like 3 (BATF3), is highly transcribed in cHL and ALCL; however, its functional importance in lymphomagenesis is unknown. Here we show that proto-typical CD30+ lymphomas, namely cHL (21/30) and primary mediastinal B-cell lymphoma (8/9), but also CD30+ diffuse large B-cell lymphoma (15/20) frequently express BATF3 protein. Mass spectrometry and co-immunoprecipitation established interactions of BATF3 with JUN and JUNB in cHL and ALCL lines. BATF3 knockdown using short hairpin RNAs was toxic for cHL and ALCL lines, reducing their proliferation and survival. We identified MYC as a critical BATF3 target and confirmed binding of BATF3 to the MYC promoter. JAK/STAT signaling regulated BATF3 expression, as chemical JAK2 inhibition reduced and interleukin 13 stimulation induced BATF3 expression in cHL lines. Chromatin immunoprecipitation substantiated a direct regulation of BATF3 by STAT proteins in cHL and ALCL lines. In conclusion, we identified STAT-mediated BATF3 expression that is essential for lymphoma cell survival and promoted MYC activity in cHL and ALCL, hence we recognized a new oncogenic axis in these lymphomas.
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Affiliation(s)
- A Lollies
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - S Hartmann
- Dr Senckenberg Institute of Pathology, Goethe-University of Frankfurt, Medical School, Frankfurt, Germany
| | - M Schneider
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany.,Dr Senckenberg Institute of Pathology, Goethe-University of Frankfurt, Medical School, Frankfurt, Germany
| | - T Bracht
- Medizinisches Proteom-Center, Ruhr-University Bochum, Bochum, Germany
| | - A L Weiß
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - J Arnolds
- Department of Otorhinolaryngology, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - L Klein-Hitpass
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - B Sitek
- Medizinisches Proteom-Center, Ruhr-University Bochum, Bochum, Germany
| | - M-L Hansmann
- Dr Senckenberg Institute of Pathology, Goethe-University of Frankfurt, Medical School, Frankfurt, Germany
| | - R Küppers
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - M A Weniger
- Institute of Cell Biology (Cancer Research), Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
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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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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) 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] [What about the content of this article? (0)] [Affiliation(s)] [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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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] [What about the content of this article? (0)] [Affiliation(s)] [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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11
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Wang C, Thangamani S, Kim M, Gu BH, Lee JH, Taparowsky EJ, Kim CH. BATF is required for normal expression of gut-homing receptors by T helper cells in response to retinoic acid. ACTA ACUST UNITED AC 2013; 210:475-89. [PMID: 23460729 PMCID: PMC3600908 DOI: 10.1084/jem.20121088] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Induction of gut-homing receptors in T cells in response to retinoic acid requires the transcription factor BATF. CCR9 and α4β7 are the major trafficking receptors for lymphocyte migration to the gut, and their expression is induced during lymphocyte activation under the influence of retinoic acid (RA). We report here that BATF (basic leucine zipper transcription factor, ATF-like), an AP-1 protein family factor, is required for optimal expression of CCR9 and α4β7 by T helper cells. BATF-deficient (knockout [KO]) mice had reduced numbers of effector T and regulatory T cells in the intestine. The intestinal T cells in BATF KO mice expressed CCR9 and α4β7 at abnormally low levels compared with their wild-type (WT) counterparts, and BATF KO CD4+ T cells failed to up-regulate the expression of CCR9 and α4β7 to WT levels in response to RA. Defective binding of RARα and histone acetylation at the regulatory regions of the CCR9 and Itg-α4 genes were observed in BATF KO T cells. As a result, BATF KO effector and FoxP3+ T cells failed to populate the intestine, and neither population functioned normally in the induction and regulation of colitis. Our results establish BATF as a cellular factor required for normal expression of CCR9 and α4β7 and for the homeostasis and effector functions of T cell populations in the intestine.
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Affiliation(s)
- Chuanwu Wang
- Laboratory of Immunology and Hematopoiesis, Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA
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