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Utsumi T, Tsumura M, Yashiro M, Kato Z, Noma K, Sakura F, Kagawa R, Mizoguchi Y, Karakawa S, Ohnishi H, Cunningham-Rundles C, Arkwright PD, Kobayashi M, Kanegane H, Bogunovic D, Boisson B, Casanova JL, Asano T, Okada S. Exclusive Characteristics of the p.E555K Dominant-Negative Variant in Autosomal Dominant E47 Deficiency. J Clin Immunol 2024; 44:167. [PMID: 39073655 PMCID: PMC11286708 DOI: 10.1007/s10875-024-01758-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/21/2024] [Indexed: 07/30/2024]
Abstract
PURPOSE Transcription factor 3 (TCF3) encodes 2 transcription factors generated by alternative splicing, E12 and E47, which contribute to early lymphocyte differentiation. In humans, autosomal dominant (AD) E47 transcription factor deficiency is an inborn error of immunity characterized by B-cell deficiency and agammaglobulinemia. Only the recurrent de novo p.E555K pathogenic variant has been associated with this disease and acts via a dominant-negative (DN) mechanism. In this study, we describe the first Asian patient with agammaglobulinemia caused by the TCF3 p.E555K variant and provide insights into the structure and function of this variant. METHODS TCF3 variant was identified by inborn errors of immunity-related gene panel sequencing. The variant E555K was characterized by alanine scanning of the E47 basic region and comprehensive mutational analysis focused on position 555. RESULTS The patient was a 25-year-old male with B-cell deficiency, agammaglobulinemia, and mild facial dysmorphic features. We confirmed the diagnosis of AD E47 transcription factor deficiency by identifying a heterozygous missense variant, c.1663 G>A; p.E555K, in TCF3. Alanine scanning of the E47 basic region revealed the structural importance of position 555. Comprehensive mutational analysis focused on position 555 showed that only the glutamate-to-lysine substitution had a strong DN effect. 3D modeling demonstrated that this variant not only abolished hydrogen bonds involved in protein‒DNA interactions, but also inverted the charge on the surface of the E47 protein. CONCLUSIONS Our study reveals the causative mutation hotspot in the TCF3 DN variant and highlights the weak negative selection associated with the TCF3 gene.
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Affiliation(s)
- Takanori Utsumi
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Miyuki Tsumura
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masato Yashiro
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Zenichiro Kato
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Structural Medicine, United Graduate School of Drug Discovery and Medical Information Science, Gifu University, Gifu, Japan
| | - Kosuke Noma
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fumiaki Sakura
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Applied Genomics, Kazusa DNA Research Institute, Chiba, Japan
| | - Reiko Kagawa
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yoko Mizoguchi
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shuhei Karakawa
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Charlotte Cunningham-Rundles
- Division of Allergy and Clinical Immunology, Departments of Medicine and Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Peter D Arkwright
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - Masao Kobayashi
- Japanese Red Cross Chugoku-Shikoku Block Blood Center, Hiroshima, Japan
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Dusan Bogunovic
- Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bertrand Boisson
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Paris Descartes University, Imagine Institute, Paris, France
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France
- Paris Descartes University, Imagine Institute, Paris, France
- Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, AP-HP, Paris, France
- Howard Hughes Medical Institute (HHMI), New York, NY, USA
| | - Takaki Asano
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
- Department of Genetics and Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.
| | - Satoshi Okada
- Department of Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
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Tambe A, MacCarthy T, Pavri R. Interpretable deep learning reveals the role of an E-box motif in suppressing somatic hypermutation of AGCT motifs within human immunoglobulin variable regions. Front Immunol 2024; 15:1407470. [PMID: 38863710 PMCID: PMC11165027 DOI: 10.3389/fimmu.2024.1407470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024] Open
Abstract
Introduction Somatic hypermutation (SHM) of immunoglobulin variable (V) regions by activation induced deaminase (AID) is essential for robust, long-term humoral immunity against pathogen and vaccine antigens. AID mutates cytosines preferentially within WRCH motifs (where W=A or T, R=A or G and H=A, C or T). However, it has been consistently observed that the mutability of WRCH motifs varies substantially, with large variations in mutation frequency even between multiple occurrences of the same motif within a single V region. This has led to the notion that the immediate sequence context of WRCH motifs contributes to mutability. Recent studies have highlighted the potential role of local DNA sequence features in promoting mutagenesis of AGCT, a commonly mutated WRCH motif. Intriguingly, AGCT motifs closer to 5' ends of V regions, within the framework 1 (FW1) sub-region1, mutate less frequently, suggesting an SHM-suppressing sequence context. Methods Here, we systematically examined the basis of AGCT positional biases in human SHM datasets with DeepSHM, a machine-learning model designed to predict SHM patterns. This was combined with integrated gradients, an interpretability method, to interrogate the basis of DeepSHM predictions. Results DeepSHM predicted the observed positional differences in mutation frequencies at AGCT motifs with high accuracy. For the conserved, lowly mutating AGCT motifs in FW1, integrated gradients predicted a large negative contribution of 5'C and 3'G flanking residues, suggesting that a CAGCTG context in this location was suppressive for SHM. CAGCTG is the recognition motif for E-box transcription factors, including E2A, which has been implicated in SHM. Indeed, we found a strong, inverse relationship between E-box motif fidelity and mutation frequency. Moreover, E2A was found to associate with the V region locale in two human B cell lines. Finally, analysis of human SHM datasets revealed that naturally occurring mutations in the 3'G flanking residues, which effectively ablate the E-box motif, were associated with a significantly increased rate of AGCT mutation. Discussion Our results suggest an antagonistic relationship between mutation frequency and the binding of E-box factors like E2A at specific AGCT motif contexts and, therefore, highlight a new, suppressive mechanism regulating local SHM patterns in human V regions.
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Affiliation(s)
- Abhik Tambe
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, United States
| | - Thomas MacCarthy
- Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY, United States
| | - Rushad Pavri
- Research Institute of Molecular Pathology (IMP), Vienna, Austria
- Peter Gorer Department of Immunobiology, School of Immunology & Microbial Sciences, King’s College London, London, United Kingdom
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Miyazaki M, Miyazaki K. The Function of E2A in B-Cell Development. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1459:97-113. [PMID: 39017841 DOI: 10.1007/978-3-031-62731-6_5] [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: 07/18/2024]
Abstract
Helix-loop-helix (HLH) transcription factors (TFs) play a key role in various cellular differentiation and function through the regulation of enhancer activity. E2A, a member of the mammalian E-protein family (class I HLH protein), is well known to play an important role in hematopoiesis, especially in adaptive lymphocyte development. E2A instructs B- and T-cell lineage development through the regulation of enhancer activity for B- or T-cell signature gene expression, including Rag1 and Rag2 (Rag1/2) genes. In this chapter, we mainly focus on the function of E2A in B-cell development and on the roles of E2A in establishing the enhancer landscape through the recruitment of EP300/KAT3B, chromatin remodeling complex, mediator, cohesion, and TET proteins. Finally, we demonstrate how E2A orchestrates the assembly of the Rag1/2 gene super-enhancer (SE) formation by changing the chromatin conformation across the Rag gene locus.
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Affiliation(s)
- Masaki Miyazaki
- Laboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.
| | - Kazuko Miyazaki
- Laboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
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Lee WH, Hong KJ, Li H, Lee GR. Transcription Factor Id1 Plays an Essential Role in Th9 Cell Differentiation by Inhibiting Tcf3 and Tcf4. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2305527. [PMID: 37867222 PMCID: PMC10724384 DOI: 10.1002/advs.202305527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/08/2023] [Indexed: 10/24/2023]
Abstract
T helper type 9 (Th9) cells play important roles in immune responses by producing interleukin-9 (IL-9). Several transcription factors are responsible for Th9 cell differentiation; however, transcriptional regulation of Th9 cells is not fully understood. Here, it is shown that Id1 is an essential transcriptional regulator of Th9 cell differentiation. Id1 is induced by IL-4 and TGF-β. Id1-deficient naïve CD4 T cells fail to differentiate into Th9 cells, and overexpression of Id1 induce expression of IL-9. Mass spectrometry analysis reveals that Id1 interacts with Tcf3 and Tcf4 in Th9 cells. In addition, RNA-sequencing, chromatin immunoprecipitation, and transient reporter assay reveal that Tcf3 and Tcf4 bind to the promoter region of the Il9 gene to suppress its expression, and that Id1 inhibits their function, leading to Th9 differentiation. Finally, Id1-deficient Th9 cells ameliorate airway inflammation in an animal model of asthma. Thus, Id1 is a transcription factor that plays an essential role in Th9 cell differentiation by inhibiting Tcf3 and Tcf4.
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Affiliation(s)
- Woo Ho Lee
- Department of Life ScienceSogang University35 Baekbeom‐roMapo‐guSeoul04107South Korea
| | - Kyung Jin Hong
- Department of Life ScienceSogang University35 Baekbeom‐roMapo‐guSeoul04107South Korea
| | - Hua‐Bing Li
- Shanghai Institute of Immunology, State Key Laboratory of Oncogenes and Related GenesShanghai Jiao Tong University School of Medicine280 Chongqing South Rd, Building #5‐602Shanghai200025China
| | - Gap Ryol Lee
- Department of Life ScienceSogang University35 Baekbeom‐roMapo‐guSeoul04107South Korea
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Mihai A, Roy S, Krangel MS, Zhuang Y. E protein binding at the Tcra enhancer promotes Tcra repertoire diversity. Front Immunol 2023; 14:1188738. [PMID: 37483636 PMCID: PMC10358851 DOI: 10.3389/fimmu.2023.1188738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/21/2023] [Indexed: 07/25/2023] Open
Abstract
V(D)J recombination of antigen receptor loci is a highly developmentally regulated process. During T lymphocyte development, recombination of the Tcra gene occurs in CD4+CD8+ double positive (DP) thymocytes and requires the Tcra enhancer (Eα). E proteins are known regulators of DP thymocyte development and have three identified binding sites in Eα. To understand the contribution of E proteins to Eα function, mutants lacking one or two of the respective binding sites were generated. The double-binding site mutant displayed a partial block at the positive selection stage of αβ T cell development. Further investigation revealed loss of germline transcription within the Tcra locus at the Jα array, along with dysregulated primary and impaired secondary Vα-Jα rearrangement. Eα E protein binding increases Tcra locus accessibility and regulates TCRα recombination, thus directly promoting Tcra repertoire diversity.
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Affiliation(s)
| | | | - Michael S. Krangel
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
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Li Q, Tang C, Zhu J, Zhang L. A case of progressive multifocal leukoencephalopathy with hypogammaglobulinemia and a TCF3 mutation. J Neurovirol 2022; 28:616-618. [PMID: 35976539 DOI: 10.1007/s13365-022-01092-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/03/2022] [Accepted: 08/10/2022] [Indexed: 01/13/2023]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a rare and potentially fatal demyelinating disease of the central nervous system (CNS) caused by JC virus; it was previously seen predominantly in immunocompromised patients and those under intense immune suppression. Here, we report the case of a patient with PML with hypogammaglobulinemia and a heterozygous mutation in the TCF3 gene. As the TCF3 gene has been demonstrated to play an important role in the B cell differentiation process and the patient had no other medical history of the immune system, he was diagnosed with common variable immunodeficiency (CVID). To our knowledge, this is the first case of patient with a TCF3 gene deficiency and hypogammaglobulinemia who developed PML.
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Affiliation(s)
- Qiong Li
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Chunhua Tang
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Jie Zhu
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China
| | - Lili Zhang
- Department of Neurology, Daping Hospital, Army Medical University, Chongqing, 400042, People's Republic of China.
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LYL1 facilitates AETFC assembly and gene activation by recruiting CARM1 in t(8;21) AML. Proc Natl Acad Sci U S A 2022; 119:e2213718119. [PMID: 36215477 PMCID: PMC9586329 DOI: 10.1073/pnas.2213718119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Transcription factors (TFs) play critical roles in hematopoiesis, and their aberrant expression can lead to various types of leukemia. The t(8;21) leukemogenic fusion protein AML1-ETO (AE) is the most common fusion protein in acute myeloid leukemia and can enhance hematopoietic stem cell renewal while blocking differentiation. A key question in understanding AE-mediated leukemia is what determines the choice of AE to activate self-renewal genes or repress differentiation genes. Toward the resolution of this problem, we earlier showed that AE resides in the stable AETFC complex and that its components colocalize on up- or down-regulated target genes and are essential for leukemogenesis. In the current study, using biochemical and genomic approaches, we show that AE-containing complexes are heterogeneous, and that assembly of the larger AETFC (containing AE, CBFβ, HEB, E2A, LYL1, LMO2, and LDB1) requires LYL1. Furthermore, we provide strong evidence that the LYL1-containing AETFC preferentially binds to active enhancers and promotes AE-dependent gene activation. Moreover, we show that coactivator CARM1 interacts with AETFC and facilitates gene activation by AETFC. Collectively, this study describes a role of oncoprotein LYL1 in AETFC assembly and gene activation by recruiting CARM1 to chromatin for AML cell survival.
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Asashima H, Axisa PP, Pham THG, Longbrake EE, Ruff WE, Lele N, Cohen I, Raddassi K, Sumida TS, Hafler DA. Impaired TIGIT expression on B cells drives circulating follicular helper T cell expansion in multiple sclerosis. J Clin Invest 2022; 132:156254. [PMID: 36250467 PMCID: PMC9566906 DOI: 10.1172/jci156254] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
B cell depletion in patients with relapsing-remitting multiple sclerosis (RRMS) markedly prevents new MRI-detected lesions and disease activity, suggesting the hypothesis that altered B cell function leads to the activation of T cells driving disease pathogenesis. Here, we performed comprehensive analyses of CD40 ligand- (CD40L-) and IL-21-stimulated memory B cells from patients with MS and healthy age-matched controls, modeling the help of follicular helper T cells (Tfh cells), and found a differential gene expression signature in multiple B cell pathways. Most striking was the impaired TIGIT expression on MS-derived B cells mediated by dysregulation of the transcription factor TCF4. Activated circulating Tfh cells (cTfh cells) expressed CD155, the ligand of TIGIT, and TIGIT on B cells revealed their capacity to suppress the proliferation of IL-17-producing cTfh cells via the TIGIT/CD155 axis. Finally, CCR6+ cTfh cells were significantly increased in patients with MS, and their frequency was inversely correlated with that of TIGIT+ B cells. Together, these data suggest that the dysregulation of negative feedback loops between TIGIT+ memory B cells and cTfh cells in MS drives the activated immune system in this disease.
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Li X, Guo L, Sato F, Kitayama T, Tewari N, Makishima M, Hamada N, Liu Y, Bhawal UK. Dec2 negatively regulates bone resorption in periodontitis. J Periodontal Res 2022; 57:1056-1069. [DOI: 10.1111/jre.13046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/01/2022] [Accepted: 07/30/2022] [Indexed: 10/15/2022]
Affiliation(s)
- Xiaoyan Li
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology Capital Medical University Beijing China
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology Capital Medical University Beijing China
| | - Fuyuki Sato
- Pathology Division Shizuoka Cancer Center Shizuoka Japan
| | - Toshiyasu Kitayama
- Department of Anesthesiology Nihon University School of Dentistry Tokyo Japan
| | - Nitesh Tewari
- Division of Pedodontics and Preventive Dentistry Centre for Dental Education and Research, All India Institute of Medical Sciences New Delhi India
| | - Makoto Makishima
- Division of Biochemistry, Department of Biomedical Sciences Nihon University School of Medicine Tokyo Japan
| | - Nobushiro Hamada
- Department of Oral Microbiology Kanagawa Dental University Yokosuka Japan
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology Capital Medical University Beijing China
- Immunology Research Center for Oral and Systematic Health, Beijing Friendship Hospital Capital Medical University Beijing China
| | - Ujjal K. Bhawal
- Department of Biochemistry and Molecular Biology Nihon University School of Dentistry at Matsudo Chiba Japan
- Department of Pharmacology, Saveetha Dental College Saveetha Institute of Medical and Technical Sciences Chennai India
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Early B cell factor 4 modulates FAS-mediated apoptosis and promotes cytotoxic function in human immune cells. Proc Natl Acad Sci U S A 2022; 119:e2208522119. [PMID: 35939714 PMCID: PMC9388157 DOI: 10.1073/pnas.2208522119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Apoptosis is a genetically regulated program of cell death that plays a key role in immune disease processes. We identified EBF4, a little-studied member of the early B cell factor (EBF) family of transcription factors, in a whole-genome CRISPR screen for regulators of Fas/APO-1/CD95-mediated T cell death. Loss of EBF4 increases the half-life of the c-FLIP protein, and its presence in the Fas signaling complex impairs caspase-8 cleavage and apoptosis. Transcriptome analysis revealed that EBF4 regulates molecules such as TBX21, EOMES, granzyme, and perforin that are important for human natural killer (NK) and CD8+ T cell functions. Proximity-dependent biotin identification (Bio-ID) mass spectrometry analyses showed EBF4 binding to STAT3, STAT5, and MAP kinase 3 and a strong pathway relationship to interleukin-2 regulated genes, which are known to govern cytotoxicity pathways. Chromatin immunoprecipitation and DNA sequencing analysis defined a canonical EBF4 binding motif, 5'-CCCNNGG/AG-3', closely related to the EBF1 binding site; using a luciferase-based reporter, we found a dose-dependent transcriptional response of this motif to EBF4. We also conducted assay for transposase-accessible chromatin sequencing in EBF4-overexpressing cells and found increased chromatin accessibility upstream of granzyme and perforin and in topologically associated domains in human lymphocytes. Finally, we discovered that the EBF4 has basal expression in human but not mouse NK cells and CD8+ T cells and vanishes following activating stimulation. Together, our data reveal key features of a previously unknown transcriptional regulator of human cytotoxic immune function.
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Pankow A, Sun XH. The divergence between T cell and innate lymphoid cell fates controlled by E and Id proteins. Front Immunol 2022; 13:960444. [PMID: 36032069 PMCID: PMC9399370 DOI: 10.3389/fimmu.2022.960444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/13/2022] [Indexed: 11/18/2022] Open
Abstract
T cells develop in the thymus from lymphoid primed multipotent progenitors or common lymphoid progenitors into αβ and γδ subsets. The basic helix-loop-helix transcription factors, E proteins, play pivotal roles at multiple stages from T cell commitment to maturation. Inhibitors of E proteins, Id2 and Id3, also regulate T cell development while promoting ILC differentiation. Recent findings suggest that the thymus can also produce innate lymphoid cells (ILCs). In this review, we present current findings that suggest the balance between E and Id proteins is likely to be critical for controlling the bifurcation of T cell and ILC fates at early stages of T cell development.
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Affiliation(s)
- Aneta Pankow
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Xiao-Hong Sun
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- *Correspondence: Xiao-Hong Sun,
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Singh S, Sarkar T, Jakubison B, Gadomski S, Spradlin A, Gudmundsson KO, Keller JR. Inhibitor of DNA binding proteins revealed as orchestrators of steady state, stress and malignant hematopoiesis. Front Immunol 2022; 13:934624. [PMID: 35990659 PMCID: PMC9389078 DOI: 10.3389/fimmu.2022.934624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022] Open
Abstract
Adult mammalian hematopoiesis is a dynamic cellular process that provides a continuous supply of myeloid, lymphoid, erythroid/megakaryocyte cells for host survival. This process is sustained by regulating hematopoietic stem cells (HSCs) quiescence, proliferation and activation under homeostasis and stress, and regulating the proliferation and differentiation of downstream multipotent progenitor (MPP) and more committed progenitor cells. Inhibitor of DNA binding (ID) proteins are small helix-loop-helix (HLH) proteins that lack a basic (b) DNA binding domain present in other family members, and function as dominant-negative regulators of other bHLH proteins (E proteins) by inhibiting their transcriptional activity. ID proteins are required for normal T cell, B cell, NK and innate lymphoid cells, dendritic cell, and myeloid cell differentiation and development. However, recent evidence suggests that ID proteins are important regulators of normal and leukemic hematopoietic stem and progenitor cells (HSPCs). This chapter will review our current understanding of the function of ID proteins in HSPC development and highlight future areas of scientific investigation.
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Affiliation(s)
- Shweta Singh
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
| | - Tanmoy Sarkar
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
| | - Brad Jakubison
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, United States
| | - Stephen Gadomski
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
| | - Andrew Spradlin
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
| | - Kristbjorn O. Gudmundsson
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, United States
| | - Jonathan R. Keller
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI)- Frederick, Frederick, MD, United States
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, United States
- *Correspondence: Jonathan R. Keller,
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13
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Hwang SM, Im SH, Rudra D. Signaling networks controlling ID and E protein activity in T cell differentiation and function. Front Immunol 2022; 13:964581. [PMID: 35983065 PMCID: PMC9379924 DOI: 10.3389/fimmu.2022.964581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/18/2022] [Indexed: 11/24/2022] Open
Abstract
E and inhibitor of DNA binding (ID) proteins are involved in various cellular developmental processes and effector activities in T cells. Recent findings indicate that E and ID proteins are not only responsible for regulating thymic T cell development but also modulate the differentiation, function, and fate of peripheral T cells in multiple immune compartments. Based on the well-established E and ID protein axis (E-ID axis), it has been recognized that ID proteins interfere with the dimerization of E proteins, thus restricting their transcriptional activities. Given this close molecular relationship, the extent of expression or stability of these two protein families can dynamically affect the expression of specific target genes involved in multiple aspects of T cell biology. Therefore, it is essential to understand the endogenous proteins or extrinsic signaling pathways that can influence the dynamics of the E-ID axis in a cell-specific and context-dependent manner. Here, we provide an overview of E and ID proteins and the functional outcomes of the E-ID axis in the activation and function of multiple peripheral T cell subsets, including effector and memory T cell populations. Further, we review the mechanisms by which endogenous proteins and signaling pathways alter the E-ID axis in various T cell subsets influencing T cell function and fate at steady-state and in pathological settings. A comprehensive understanding of the functions of E and ID proteins in T cell biology can be instrumental in T cell-specific targeting of the E-ID axis to develop novel therapeutic modalities in the context of autoimmunity and cancer.
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Affiliation(s)
- Sung-Min Hwang
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States
| | - Sin-Hyeog Im
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, South Korea
- Institute for Convergence Research and Education, Yonsei University, Seoul, South Korea
- ImmunoBiome Inc., Bio Open Innovation Center, Pohang, South Korea
- *Correspondence: Sin-Hyeog Im, ; Dipayan Rudra,
| | - Dipayan Rudra
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
- *Correspondence: Sin-Hyeog Im, ; Dipayan Rudra,
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14
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Weng N, Miller M, Pham AK, Komor AC, Broide DH. Single-base editing of rs12603332 on chromosome 17q21 with a cytosine base editor regulates ORMDL3 and ATF6α expression. Allergy 2022; 77:1139-1149. [PMID: 34525218 DOI: 10.1111/all.15092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Genetic association studies have demonstrated that the SNP rs12603332 located on chromosome 17q21 is highly associated with the risk of the development of asthma. METHODS To determine whether SNP rs1260332 is functional in regulating levels of ORMDL3 expression, we used a Cytosine Base Editor (CBE) plasmid DNA or a CBE mRNA to edit the rs12603332 C risk allele to the T non-risk allele in a human lymphocyte cell line (i.e., Jurkat cells) and in primary human CD4 T cells that carry the C risk alleles. RESULTS Jurkat cells with the rs12603332 C risk allele expressed significantly higher levels of ORMDL3 mRNA, as well as the ORMDL3 regulated gene ATF6α as assessed by qPCR compared to Jurkat clones with the T non-risk allele. In primary human CD4 T cells, we edited 90 ± 3% of the rs12603332-C risk allele to the T non-risk allele and observed a reduction in ORMDL3 and ATF6α expression. Bioinformatic analysis predicted that the non-risk allele rs12603332-T could be the central element of the E-box binding motif (CANNTG) recognized by the E47 transcription factor. An EMSA assay confirmed the bioinformatics prediction demonstrating that a rs12603332-T containing probe bound to the transcription factor E47 in vitro. CONCLUSIONS SNP rs12603332 is functional in regulating the expression of ORMDL3 as well as ORMDL3 regulated gene ATF6α expression. In addition, we demonstrate the use of CBE technology in functionally interrogating asthma-associated SNPs using studies of primary human CD4 cells.
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Affiliation(s)
- Ning Weng
- Department of Medicine University of California San Diego La Jolla California USA
| | - Marina Miller
- Department of Medicine University of California San Diego La Jolla California USA
| | - Alexa K. Pham
- Department of Medicine University of California San Diego La Jolla California USA
| | - Alexis C. Komor
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California USA
| | - David H. Broide
- Department of Medicine University of California San Diego La Jolla California USA
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15
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Basu J, Zha J, Nicolas E, Coulton M, Czyzewicz P, Hua X, Ge L, Kappes DJ. An autonomous TCR signal-sensing switch influences CD4/CD8 lineage choice in mice. Commun Biol 2022; 5:84. [PMID: 35064205 PMCID: PMC8783009 DOI: 10.1038/s42003-022-02999-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 12/21/2021] [Indexed: 11/26/2022] Open
Abstract
How multipotential cells initiate distinct gene expression programs in response to external cues to instruct cell fate choice remains a fundamental question in biology. Establishment of CD4 and CD8 T cell fates during thymocyte development is critically regulated by T cell receptor (TCR) signals, which in turn control expression of the CD4-determining transcription factor ThPOK. However, the mechanism whereby differential TCR signals are molecularly interpreted to promote or antagonize ThPOK expression, and thereby CD4 versus CD8 lineage fates remains unknown. Here we show, using reverse genetic and molecular approaches that an autonomous, position-independent TCR-sensing switch is embedded within the ThPOK locus. Further, using an in vivo mutagenesis approach, we demonstrate that differential TCR signals are interpreted during lineage commitment by relative binding of EGR, NFAT and Ebox factors to this bistable switch. Collectively our study reveals the central molecular mechanism whereby TCR signaling influences differential lineage choice. Ultimately, these findings may provide an important new tool for skewing T cell fate to treat cancer and autoimmune diseases. Basu Jayati et al. examine how T-cell receptor (TCR) engagement with MHC ligands can contribute toward adoption of CD4 and CD8 cell fates during development. By using an in vivo mutagenesis approach in mice, their results suggest potential mechanisms linking TCR signaling to ThPOK expression and differential immune lineage choice.
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16
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ILC Differentiation in the Thymus. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1365:25-39. [DOI: 10.1007/978-981-16-8387-9_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Zhang J, Wencker M, Marliac Q, Berton A, Hasan U, Schneider R, Laubreton D, Cherrier DE, Mathieu AL, Rey A, Jiang W, Caramel J, Genestier L, Marçais A, Marvel J, Ghavi-Helm Y, Walzer T. Zeb1 represses TCR signaling, promotes the proliferation of T cell progenitors and is essential for NK1.1 + T cell development. Cell Mol Immunol 2021; 18:2140-2152. [PMID: 32398809 PMCID: PMC8429412 DOI: 10.1038/s41423-020-0459-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 01/15/2023] Open
Abstract
T cell development proceeds under the influence of a network of transcription factors (TFs). The precise role of Zeb1, a member of this network, remains unclear. Here, we report that Zeb1 expression is induced early during T cell development in CD4-CD8- double-negative (DN) stage 2 (DN2). Zeb1 expression was further increased in the CD4+CD8+ double-positive (DP) stage before decreasing in more mature T cell subsets. We performed an exhaustive characterization of T cells in Cellophane mice that bear Zeb1 hypomorphic mutations. The Zeb1 mutation profoundly affected all thymic subsets, especially DN2 and DP cells. Zeb1 promoted the survival and proliferation of both cell populations in a cell-intrinsic manner. In the periphery of Cellophane mice, the number of conventional T cells was near normal, but invariant NKT cells, NK1.1+ γδ T cells and Ly49+ CD8 T cells were virtually absent. This suggested that Zeb1 regulates the development of unconventional T cell types from DP progenitors. A transcriptomic analysis of WT and Cellophane DP cells revealed that Zeb1 regulated the expression of multiple genes involved in the cell cycle and TCR signaling, which possibly occurred in cooperation with Tcf1 and Heb. Indeed, Cellophane DP cells displayed stronger signaling than WT DP cells upon TCR engagement in terms of the calcium response, phosphorylation events, and expression of early genes. Thus, Zeb1 is a key regulator of the cell cycle and TCR signaling during thymic T cell development. We propose that thymocyte selection is perturbed in Zeb1-mutated mice in a way that does not allow the survival of unconventional T cell subsets.
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Affiliation(s)
- Jiang Zhang
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Mélanie Wencker
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Quentin Marliac
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Aurore Berton
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Uzma Hasan
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Raphaël Schneider
- Institut de Génomique Fonctionnelle de Lyon, CNRS UMR 5242, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 46 allée d'Italie, F-69364, Lyon, France
| | - Daphné Laubreton
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Dylan E Cherrier
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Anne-Laure Mathieu
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Amaury Rey
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Wenzheng Jiang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Julie Caramel
- CRCL, Centre de Recherche sur le Cancer de Lyon, INSERM U1052-CNRS UMR5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France
| | - Laurent Genestier
- CRCL, Centre de Recherche sur le Cancer de Lyon, INSERM U1052-CNRS UMR5286, Centre Léon Bérard, Université Claude Bernard Lyon 1, Lyon, France
| | - Antoine Marçais
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Jacqueline Marvel
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Yad Ghavi-Helm
- Institut de Génomique Fonctionnelle de Lyon, CNRS UMR 5242, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, 46 allée d'Italie, F-69364, Lyon, France
| | - Thierry Walzer
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France.
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Sun L, Zhao X, Liu X, Zhong B, Tang H, Jin W, Clevers H, Wang H, Wang X, Dong C. Transcription factor Ascl2 promotes germinal center B cell responses by directly regulating AID transcription. Cell Rep 2021; 35:109188. [PMID: 34077723 DOI: 10.1016/j.celrep.2021.109188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 08/14/2020] [Accepted: 05/07/2021] [Indexed: 11/24/2022] Open
Abstract
During germinal center (GC) reactions, activated B cells undergo clonal expansion and functional maturation to produce high-affinity antibodies and differentiate into plasma and memory cells, accompanied with class-switching recombination (CSR) and somatic hypermutation (SHM). Activation-induced cytidine deaminase (AID) is responsible for both CSR and SHM in GC B cells. Transcriptional mechanisms underlying AID regulation and GC B cell reactions are still not well understood. Here, we show that expression of Ascl2 transcription factor is upregulated in GC B cells. Ectopic expression of Ascl2 promotes GC B cell development and enhances antibody production and affinity maturation. Conversely, deletion of Ascl2 in B cells impairs the GC response. Genome-wide analysis reveals that Ascl2 directly regulates GC B cell-related genes, including AID; ectopic expression of AID in Ascl2-deficient B cells rescues their antibody defects. Thus, Ascl2 regulates AID transcription and promotes GC B cell responses.
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Affiliation(s)
- Lin Sun
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China; Tsinghua University-Peking University Joint Center for Life Science, Beijing 100084, China
| | - Xiaohong Zhao
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Xindong Liu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Bo Zhong
- State Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, China
| | - Hong Tang
- CAS Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Beijing, China
| | - Wei Jin
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Hans Clevers
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, 3584 CT Utrecht, the Netherlands
| | - Hui Wang
- Department of Immunology and Center for Inflammation and Cancer, MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Xiaohu Wang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Chen Dong
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China; Beijing Key Lab for Immunological Research on Chronic Diseases, Beijing 100084, China.
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19
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Han AR, Lee JE, Lee MJ, Ko SY, Shin HS, Lee JY, Lee DR. Distinct Repopulation Activity in Hu-Mice Between CB- and LPB-CD34 + Cells by Enrichment of Transcription Factors. Int J Stem Cells 2021; 14:203-211. [PMID: 33906982 PMCID: PMC8138658 DOI: 10.15283/ijsc21015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/27/2021] [Accepted: 03/03/2021] [Indexed: 11/09/2022] Open
Abstract
Background and Objectives Human CD34+ hematopoietic stem cells can reconstitute the human hematopoietic system when transplanted into immunocompromised mice after irradiation. Human leukapheresis peripheral blood (LPB)- and cord blood (CB)-derived CD34+ cells have a similar capacity to reconstitute myeloid lineage cells in a humanized mice (hu-mice) model. However, potent stem cells, such as CB-CD34+ cells, efficiently reconstitute the lymphoid system in vivo compared to LPB-CD34+ cells. Modeling the human hematolymphoid system is vital for studying immune cell crosstalk in human xenografted mice, with CB-CD34+ cells used as an optimized cell source because they are essential in reconstituting lymphoid lineage cells. Methods and Results In this study, we established hu-mice that combined human characteristics with long-term survival and investigated the efficiency of the engraftment of lymphoid lineage cells derived from LPB- and CB-CD34+ cells in the bone marrow, spleen, and LPB. We found an overall increase in the transcriptional activity of lymphoid lineage genes in CB-CD34+ cells. Our results revealed that potent CB-CD34+ cells displaying a general upregulation of the expression of genes involved in lymphopoiesis could contribute to the hematolymphoid system in the humanized mice model with longevity. Conclusions Our data suggest that humanized mouse model by usage of CB-CD34+ cells displaying high expression of TFs for lymphoid lineage cells can contribute to study the immune response against lymphocytes.
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Affiliation(s)
- A-Reum Han
- Department of Biomedical Science, CHA University, Seongnam, Korea
| | - Jeong Eun Lee
- CHA Advanced Research Institute, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Min Ji Lee
- Department of Biomedical Science, CHA University, Seongnam, Korea
| | - Seung Young Ko
- Department of Radiation Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Hyun Soo Shin
- Department of Radiation Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Ji Yoon Lee
- CHA Advanced Research Institute, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Dong Ryul Lee
- Department of Biomedical Science, CHA University, Seongnam, Korea
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20
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Cellular networks controlling T cell persistence in adoptive cell therapy. Nat Rev Immunol 2021; 21:769-784. [PMID: 33879873 DOI: 10.1038/s41577-021-00539-6] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 02/08/2023]
Abstract
The antitumour activity of endogenous or adoptively transferred tumour-specific T cells is highly dependent on their differentiation status. It is now apparent that less differentiated T cells compared with fully differentiated effector T cells have better antitumour therapeutic effects owing to their enhanced capacity to expand and their long-term persistence. In patients with cancer, the presence of endogenous or adoptively transferred T cells with stem-like memory or precursor phenotype correlates with improved therapeutic outcomes. Advances in our understanding of T cell differentiation states at the epigenetic and transcriptional levels have led to the development of novel methods to generate tumour-specific T cells - namely, chimeric antigen receptor T cells - that are more persistent and resistant to the development of dysfunction. These include the use of novel culture methods before infusion, modulation of transcriptional, metabolic and/or epigenetic programming, and strategies that fine-tune antigen receptor signalling. This Review discusses existing barriers and strategies to overcome them for successful T cell expansion and persistence in the context of adoptive T cell immunotherapy for solid cancers.
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21
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Bajana S, Thomas K, Georgescu C, Zhao Y, Wren JD, Kovats S, Sun XH. Augmenting E Protein Activity Impairs cDC2 Differentiation at the Pre-cDC Stage. Front Immunol 2020; 11:577718. [PMID: 33391258 PMCID: PMC7775562 DOI: 10.3389/fimmu.2020.577718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/12/2020] [Indexed: 11/24/2022] Open
Abstract
Dendritic cell (DC) specification and differentiation are controlled by a circuit of transcription factors, which regulate the expression of DC effector genes as well as the transcription factors themselves. E proteins are a widely expressed basic helix-loop-helix family of transcription factors whose activity is suppressed by their inhibitors, ID proteins. Loss-of-function studies have demonstrated the essential role of both E and ID proteins in different aspects of DC development. In this study, we employed a gain-of-function approach to illustrate the importance of the temporal control of E protein function in maintaining balanced differentiation of conventional DC (cDC) subsets, cDC1 and cDC2. We expressed an E protein mutant, ET2, which dimerizes with endogenous E proteins to overcome inhibition by ID proteins and activate the transcription of E protein targets. Induction of ET2 expression at the hematopoietic progenitor stage led to a dramatic reduction in cDC2 precursors (pre-cDC2s) with little impact on pre-cDC1s. Consequently, we observed decreased numbers of cDC2s in the spleen and lung, as well as in FLT3L-driven bone marrow-derived DC cultures. Furthermore, in mice bearing ET2, we detected increased expression of the IRF8 transcription factor in cDC2s, in which IRF8 is normally down-regulated and IRF4 up-regulated. This aberrant expression of IRF8 induced by ET2 may contribute to the impairment of cDC2 differentiation. In addition, analyses of the transcriptomes of splenic cDC1s and cDC2s revealed that ET2 expression led to a shift, at least in part, of the transcriptional profile characteristic of cDC2s to that of cDC1. Together, these results suggest that a precise control of E protein activity is crucial for balanced DC differentiation.
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Affiliation(s)
- Sandra Bajana
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Kevin Thomas
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Constantin Georgescu
- Program in Genes and Human Diseases, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Ying Zhao
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Jonathan D. Wren
- Program in Genes and Human Diseases, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Susan Kovats
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Xiao-Hong Sun
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
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22
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Pattarabanjird T, Cress C, Nguyen A, Taylor A, Bekiranov S, McNamara C. A Machine Learning Model Utilizing a Novel SNP Shows Enhanced Prediction of Coronary Artery Disease Severity. Genes (Basel) 2020; 11:genes11121446. [PMID: 33271747 PMCID: PMC7760379 DOI: 10.3390/genes11121446] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/19/2020] [Accepted: 11/26/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Machine learning (ML) has emerged as a powerful approach for predicting outcomes based on patterns and inferences. Improving prediction of severe coronary artery disease (CAD) has the potential for personalizing prevention and treatment strategies and for identifying individuals that may benefit from cardiac catheterization. We developed a novel ML approach combining traditional cardiac risk factors (CRF) with a single nucleotide polymorphism (SNP) in a gene associated with human CAD (ID3 rs11574) to enhance prediction of CAD severity; Methods: ML models incorporating CRF along with ID3 genotype at rs11574 were evaluated. The most predictive model, a deep neural network, was used to classify patients into high (>32) and low level (≤32) Gensini severity score. This model was trained on 325 and validated on 82 patients. Prediction performance of the model was summarized by a confusion matrix and area under the receiver operating characteristics curve (ROC-AUC); and Results: Our neural network predicted severity score with 81% and 87% accuracy for the low and the high groups respectively with an ROC-AUC of 0.84 for 82 patients in the test group. The addition of ID3 rs11574 to CRF significantly enhanced prediction accuracy from 65% to 81% in the low group, and 72% to 84% in the high group. Age, high-density lipoprotein (HDL), and systolic blood pressure were the top 3 contributors in predicting severity score; Conclusions: Our neural network including ID3 rs11574 improved prediction of CAD severity over use of Framingham score, which may potentially be helpful for clinical decision making in patients at increased risk of complications from coronary angiography.
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Affiliation(s)
- Tanyaporn Pattarabanjird
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; (T.P.); (C.C.); (A.T.)
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Corban Cress
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; (T.P.); (C.C.); (A.T.)
| | - Anh Nguyen
- Division of Cardiology, Duke University School of Medicine, Durham, NC 27710, USA;
| | - Angela Taylor
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; (T.P.); (C.C.); (A.T.)
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Stefan Bekiranov
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA
- Correspondence: (S.B.); (C.M.)
| | - Coleen McNamara
- Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; (T.P.); (C.C.); (A.T.)
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
- Correspondence: (S.B.); (C.M.)
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23
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Sheikh AA, Groom JR. Transcription tipping points for T follicular helper cell and T-helper 1 cell fate commitment. Cell Mol Immunol 2020; 18:528-538. [PMID: 32999454 PMCID: PMC7525231 DOI: 10.1038/s41423-020-00554-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022] Open
Abstract
During viral infection, immune cells coordinate the induction of inflammatory responses that clear infection and humoral responses that promote protection. CD4+ T-cell differentiation sits at the center of this axis. Differentiation toward T-helper 1 (Th1) cells mediates inflammation and pathogen clearance, while T follicular helper (Tfh) cells facilitate germinal center (GC) reactions for the generation of high-affinity antibodies and immune memory. While Th1 and Tfh differentiation occurs in parallel, these CD4+ T-cell identities are mutually exclusive, and progression toward these ends is determined via the upregulation of T-bet and Bcl6, respectively. These lineage-defining transcription factors act in concert with multiple networks of transcriptional regulators that tip the T-bet and Bcl6 axis in CD4+ T-cell progenitors to either a Th1 or Tfh fate. It is now clear that these transcriptional networks are guided by cytokine cues that are not only varied between distinct viral infections but also dynamically altered throughout the duration of infection. Thus, multiple intrinsic and extrinsic factors combine to specify the fate, plasticity, and function of Th1 and Tfh cells during infection. Here, we review the current information on the mode of action of the lineage-defining transcription factors Bcl6 and T-bet and how they act individually and in complex to govern CD4+ T-cell ontogeny. Furthermore, we outline the multifaceted transcriptional regulatory networks that act upstream and downstream of Bcl6 and T-bet to tip the differentiation equilibrium toward either a Tfh or Th1 fate and how these are impacted by dynamic inflammatory cues.
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Affiliation(s)
- Amania A Sheikh
- Divisions of Immunology and Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Joanna R Groom
- Divisions of Immunology and Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia.
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24
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Zhang J, Meng L, Jiang W, Zhang H, Zhou A, Zeng N. Identification of clinical molecular targets for childhood Burkitt lymphoma. Transl Oncol 2020; 13:100855. [PMID: 32947237 PMCID: PMC7502376 DOI: 10.1016/j.tranon.2020.100855] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/28/2020] [Accepted: 08/03/2020] [Indexed: 12/20/2022] Open
Abstract
Burkitt lymphoma (BL) is a malignant tumor in children. Although BL is generally curable, early relapse and refractoriness may occur. Some molecular indicators have been recently suggested for BL diagnosis, but large heterogeneity still exists. This study aimed at providing clinical molecular targets and methods that may help improve diagnosis and treatment of childhood BL. Only children patients were included in the study, and targeted gene sequencing was conducted to identify tumor specific mutations. The mRNA and protein level expression of potential target genes were measured by real-time PCR and immunohistochemistry. The relationship between BL specific gene mutation and differential expression with clinical features was analyzed. The results showed that i) detailed analysis of c-MYC/BCL2/BCL6 gene loci alteration and gene expression would help in accurate diagnosis and treatment determination of childhood BL; ii) loss-of-function mutations in SOCS1 or CIITA gene might be used as malignant markers for BL diagnosis and prognosis; iii) specific mutations of CD79A, MYD88, KLF2, DNMT3A and NFKBIE genes often concurrently existed in BL and showed association with benign clinical outcomes; iv) the high expression of MYC, TCF3 and loss-of-function ID3 genes in tumor may be potential therapeutic targets and could be used for treatment monitoring; and v) four MYC-translocation negative cases were re-defined as high-grade B-cell lymphoma-not otherwise specified (HGBL-NOS) but showed similar clinical outcomes and molecular features to other BL cases in the study, suggesting more studies needed to explore the molecular mechanisms and clinical significance of this provisional tumor entity. Detailed analysis of c-MYC/BCL2/BCL6 gene alteration and expression may help in accurate diagnosis and treatment; The MYC-translocation negative cases (HGBL-NOS) showed similar clinical outcomes and molecular features to other cases; Loss-of-function mutations of SOCS1 or CIITA gene could be used as malignant markers for diagnosis and prognosis; Concurrent mutations in CD79A, MYD88, KLF2, DNMT3A and NFKBIE genes associated with benign clinical outcomes; High expression of MYC, TCF3 and loss-of-function ID3 gene in tumor may be potential therapeutic targets.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Leijun Meng
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai 200040, China
| | - Weiyun Jiang
- Yu Kang Biotechnology Co., Ltd, Jiaxing 314100, Zhejiang, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai 200040, China
| | - Aiwu Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Naiyan Zeng
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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25
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Peng V, Georgescu C, Bakowska A, Pankow A, Qian L, Wren JD, Sun XH. E proteins orchestrate dynamic transcriptional cascades implicated in the suppression of the differentiation of group 2 innate lymphoid cells. J Biol Chem 2020; 295:14866-14877. [PMID: 32817168 DOI: 10.1074/jbc.ra120.013806] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 08/11/2020] [Indexed: 12/13/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) represent a subset of newly discovered immune cells that are involved in immune reactions against microbial pathogens, host allergic reactions, as well as tissue repair. The basic helix-loop-helix transcription factors collectively called E proteins powerfully suppress the differentiation of ILC2s from bone marrow and thymic progenitors while promoting the development of B and T lymphocytes. How E proteins exert the suppression is not well understood. Here we investigated the underlying molecular mechanisms using inducible gain and loss of function approaches in ILC2s and their precursors, respectively. Cross-examination of RNA-seq and ATAC sequencing data obtained at different time points reveals a set of genes that are likely direct targets of E proteins. Consequently, a widespread down-regulation of chromatin accessibility occurs at a later time point, possibly due to the activation of transcriptional repressor genes such as Cbfa2t3 and Jdp2 The large number of genes repressed by gain of E protein function leads to the down-regulation of a transcriptional network important for ILC2 differentiation.
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Affiliation(s)
- Vincent Peng
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Constantin Georgescu
- Program in Genes and Human Diseases, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Anna Bakowska
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Aneta Pankow
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Liangyue Qian
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Jonathan D Wren
- Program in Genes and Human Diseases, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Xiao-Hong Sun
- Program in Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA.
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26
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Stokic-Trtica V, Diefenbach A, Klose CSN. NK Cell Development in Times of Innate Lymphoid Cell Diversity. Front Immunol 2020; 11:813. [PMID: 32733432 PMCID: PMC7360798 DOI: 10.3389/fimmu.2020.00813] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/08/2020] [Indexed: 12/31/2022] Open
Abstract
After being described in the 1970s as cytotoxic cells that do not require MHC-dependent pre-activation, natural killer (NK) cells remained the sole member of innate lymphocytes for decades until lymphoid tissue-inducer cells in the 1990s and helper-like innate lymphoid lineages from 2008 onward completed the picture of innate lymphoid cell (ILC) diversity. Since some of the ILC members, such as ILC1s and CCR6- ILC3s, share specific markers previously used to identify NK cells, these findings provoked the question of how to delineate the development of NK cell and helper-like ILCs and how to properly identify and genetically interfere with NK cells. The description of eomesodermin (EOMES) as a lineage-specifying transcription factor of NK cells provided a candidate that may serve as a selective marker for the genetic targeting and identification of NK cells. Unlike helper-like ILCs, NK cell activation is, to a large degree, regulated by the engagement of activating and inhibitory surface receptors. NK cell research has revealed some elegant mechanisms of immunosurveillance, coined "missing-self" and "induced-self" recognition, thus complementing "non-self recognition", which is predominantly utilized by adaptive lymphocytes and myeloid cells. Notably, the balance of activating and inhibitory signals perceived by surface receptors can be therapeutically harnessed for anti-tumor immunity mediated by NK cells. This review aims to summarize the similarities and the differences in development, function, localization, and phenotype of NK cells and helper-like ILCs, with the purpose to highlight the unique feature of NK cell development and regulation.
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Affiliation(s)
- Vladislava Stokic-Trtica
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Max-Planck Institute for Infection Biology, Berlin, Germany
| | - Andreas Diefenbach
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Mucosal and Developmental Immunology, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Christoph S N Klose
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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27
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Liu C, Yu S, Jin R, Long Y, Lu S, Song Y, Sun X, Sun XH, Zhang Y. Correlation of the levels of DNA-binding inhibitor Id3 and regulatory T cells with SLE disease severity. J Autoimmun 2020; 113:102498. [PMID: 32536579 DOI: 10.1016/j.jaut.2020.102498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/17/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023]
Abstract
E proteins, a subset of basic helix-loop-helix (bHLH) proteins, are transcription activators and their functions are inhibited by DNA-binding inhibitor (Id) 1-4. Studies have shown that Treg levels are decreased in Id3 knockout mice. Mice over-expressing Id1 in CD4 T cells possessed a greater number of regulatory T cells (Treg) and exhibited attenuated experimental autoimmune encephalomyelitis (EAE). The significance of Id proteins in human systemic lupus erythematosus (SLE) remains unclear. In this study, we systematically analyzed Id transcription in naïve, memory CD4 cells and regulatory T cells in peripheral blood mononuclear cells (PBMCs) in patients with active or inactive SLE. In parallel, Treg subsets in PBMCs were analyzed using different strategies. Id expression levels were correlated with Treg numbers as well as clinical indicators. We found that Id genes expressed in human peripheral CD4 cells were mainly Id2 and Id3. Id3 levels were significantly elevated in CD4+CD25hi T cells of patients with active SLE. Likewise, Id3 levels were positively correlated with increased CD4+FoxP3+ and CD4+Helios+FoxP3+ Treg cells in these patients. Id3 levels were found to be positively correlated with erythrocyte sedimentation rate (ESR), lupus anticoagulant (LAC), ribosomal antibody and SLE Disease Activity Index (SLEDAI) in patients with active SLE. Mice overexpressing Id1 in CD4+ T cells possessed significantly higher Treg levels in spleen and lower autoantibody concentrations in serum. Our results suggest that during the pathogenesis of SLE, up-regulation of Id3 can promote Treg differentiation to play an inhibitory effect on autoimmune responses.
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Affiliation(s)
- Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Sen Yu
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Rong Jin
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Yan Long
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Songsong Lu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ying Song
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xiuyuan Sun
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Xiao-Hong Sun
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Yu Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Institute of Biological Sciences, Jinzhou Medical University, Jinzhou, Liaoning, China.
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28
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Chen T, Guo J, Cai Z, Li B, Sun L, Shen Y, Wang S, Wang Z, Wang Z, Wang Y, Zhou H, Cai Z, Ye Z. Th9 Cell Differentiation and Its Dual Effects in Tumor Development. Front Immunol 2020; 11:1026. [PMID: 32508847 PMCID: PMC7251969 DOI: 10.3389/fimmu.2020.01026] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/28/2020] [Indexed: 12/17/2022] Open
Abstract
With the improved understanding of the molecular pathogenesis and characteristics of cancers, the critical role of the immune system in preventing tumor development has been widely accepted. The understanding of the relationship between the immune system and cancer progression is constantly evolving, from the cancer immunosurveillance hypothesis to immunoediting theory and the delicate balance in the tumor microenvironment. Currently, immunotherapy is regarded as a promising strategy against cancers. Although adoptive cell therapy (ACT) has shown some exciting results regarding the rejection of tumors, the effect is not always satisfactory. Cellular therapy with CD4+ T cells remains to be further explored since the current ACT is mainly focused on CD8+ cytotoxic T lymphocytes (CTLs). Recently, Th9 cells, a subgroup of CD4+ T helper cells characterized by the secretion of IL-9 and IL-10, have been reported to be effective in the elimination of solid tumors and to exhibit superior antitumor properties to Th1 and Th17 cells. In this review, we summarize the most recent advances in the understanding of Th9 cell differentiation and the dual role, both anti-tumor and pro-tumor effects, of Th9 cells in tumor progression.
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Affiliation(s)
- Tao Chen
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Jufeng Guo
- Department of Breast Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhenhai Cai
- Department of Orthopedics Surgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Binghao Li
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Lingling Sun
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Yingying Shen
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, China
| | - Shengdong Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zhan Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zenan Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Yucheng Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Hao Zhou
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zhijian Cai
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China.,Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhaoming Ye
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
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29
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A Novel Role for the Tumor Suppressor Gene ITF2 in Tumorigenesis and Chemotherapy Response. Cancers (Basel) 2020; 12:cancers12040786. [PMID: 32224864 PMCID: PMC7226299 DOI: 10.3390/cancers12040786] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 11/18/2022] Open
Abstract
Despite often leading to platinum resistance, platinum-based chemotherapy continues to be the standard treatment for many epithelial tumors. In this study we analyzed and validated the cytogenetic alterations that arise after treatment in four lung and ovarian paired cisplatin-sensitive/resistant cell lines by 1-million microarray-based comparative genomic hybridization (array-CGH) and qRT-PCR methodologies. RNA-sequencing, functional transfection assays, and gene-pathway activity analysis were used to identify genes with a potential role in the development of this malignancy. The results were further explored in 55 lung and ovarian primary tumors and control samples, and in two extensive in silico databases. Long-term cell exposure to platinum induces the frequent deletion of ITF2 gene. Its expression re-sensitized tumor cells to platinum and recovered the levels of Wnt/β-catenin transcriptional activity. ITF2 expression was also frequently downregulated in epithelial tumors, predicting a worse overall survival. We also identified an inverse correlation between ITF2 and HOXD9 expression, revealing that Non-small cell lung cancer (NSCLC) patients with lower expression of HOXD9 had a better overall survival rate. We defined the implication of ITF2 as a molecular mechanism behind the development of cisplatin resistance probably through the activation of the Wnt-signaling pathway. This data highlights the possible role of ITF2 and HOXD9 as novel therapeutic targets for platinum resistant tumors.
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30
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Hu L, Xu J, Wu T, Fan Z, Sun L, Liu Y, Li Y, Zhang C, Wang J, Ding Y, Wang S. Depletion of ID3 enhances mesenchymal stem cells therapy by targeting BMP4 in Sjögren's syndrome. Cell Death Dis 2020; 11:172. [PMID: 32139667 PMCID: PMC7058624 DOI: 10.1038/s41419-020-2359-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 02/15/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022]
Abstract
Mesenchymal stem cell (MSCs) transplantation has been used to treat Sjögren’s syndrome (SS) based on the immunoregulatory properties of MSCs. However, the effectiveness need improving and its underlying intrinsic mechanisms remain largely unknown. Here, we show that Id3 is upregulated in bone marrow-derived MSCs (BMMSCs) isolated from NOD/ShiLtJ mice, a widely used SS model, compared with ICR mice as control, suggesting that it functions in SS development and therapy. Transplantation of Id3-deficient BMMSCs rescues salivary gland function more effective than wild-type BMMSCs in NOD/ShiLtJ mice. Mechanistically, we show that ID3 negatively regulated BMP4 expression by preventing binding of basic helix–loop–helix protein E2A to the promoter of the Bmp4 gene. BMP4 in turn promoted PGE2 production in MSCs, and exhibited enhanced suppressive activities of T-cell proliferation and Th1 differentiation. Importantly, BMMSCs from SS patients showed significantly lower BMP4 and PGE2 expression than those from healthy individuals. Taken together, our findings revealed the targeting Id3 may be therapeutically useful for improving MSC immunoregulation and effectiveness of MSCs therapy for SS.
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Affiliation(s)
- Lei Hu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China.
| | - Junji Xu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China.,National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Tingting Wu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Zhipeng Fan
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yi Liu
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Yan Li
- Health Management Center, The Third Xiangya Hospital of Central South University, Changsha, China.,Fortune Link Triones (Beijing) Scitech Co., Ltd., Beijing, China
| | - Chunmei Zhang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Jingsong Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China.,Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, 100069, China
| | - Yaozhong Ding
- Department of Immunology, Capital Medical University, Beijing, 100069, China
| | - Songlin Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, 100050, China. .,Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, 100069, China.
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31
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Wang L, Tan TK, Durbin AD, Zimmerman MW, Abraham BJ, Tan SH, Ngoc PCT, Weichert-Leahey N, Akahane K, Lawton LN, Rokita JL, Maris JM, Young RA, Look AT, Sanda T. ASCL1 is a MYCN- and LMO1-dependent member of the adrenergic neuroblastoma core regulatory circuitry. Nat Commun 2019; 10:5622. [PMID: 31819055 PMCID: PMC6901540 DOI: 10.1038/s41467-019-13515-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 11/11/2019] [Indexed: 12/16/2022] Open
Abstract
A heritable polymorphism within regulatory sequences of the LMO1 gene is associated with its elevated expression and increased susceptibility to develop neuroblastoma, but the oncogenic pathways downstream of the LMO1 transcriptional co-regulatory protein are unknown. Our ChIP-seq and RNA-seq analyses reveal that a key gene directly regulated by LMO1 and MYCN is ASCL1, which encodes a basic helix-loop-helix transcription factor. Regulatory elements controlling ASCL1 expression are bound by LMO1, MYCN and the transcription factors GATA3, HAND2, PHOX2B, TBX2 and ISL1-all members of the adrenergic (ADRN) neuroblastoma core regulatory circuitry (CRC). ASCL1 is required for neuroblastoma cell growth and arrest of differentiation. ASCL1 and LMO1 directly regulate the expression of CRC genes, indicating that ASCL1 is a member and LMO1 is a coregulator of the ADRN neuroblastoma CRC.
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Affiliation(s)
- Lu Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
| | - Tze King Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Adam D Durbin
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02216, USA
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA, 02215, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Mark W Zimmerman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02216, USA
| | - Brian J Abraham
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38102, USA
| | - Shi Hao Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Phuong Cao Thi Ngoc
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore
| | - Nina Weichert-Leahey
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02216, USA
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA, 02215, USA
| | - Koshi Akahane
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02216, USA
- Department of Pediatrics, School of Medicine, University of Yamanashi, Chuo, 4093898, Japan
| | - Lee N Lawton
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
| | - Jo Lynne Rokita
- Oncology Division, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Department of Bioinformatics and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - John M Maris
- Oncology Division, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
- Biology Department, MIT, Cambridge, MA, 02142, USA
| | - A Thomas Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02216, USA.
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA, 02215, USA.
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore.
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32
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The subcellular localization of bHLH transcription factor TCF4 is mediated by multiple nuclear localization and nuclear export signals. Sci Rep 2019; 9:15629. [PMID: 31666615 PMCID: PMC6821749 DOI: 10.1038/s41598-019-52239-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/11/2019] [Indexed: 01/10/2023] Open
Abstract
Transcription factor 4 (TCF4) is a class I basic helix-loop-helix (bHLH) transcription factor which regulates the neurogenesis and specialization of cells. TCF4 also plays an important role in the development and functioning of the immune system. Additionally, TCF4 regulates the development of Sertoli cells and pontine nucleus neurons, myogenesis, melanogenesis and epithelial-mesenchymal transition. The ability of transcription factors to fulfil their function often depends on their intracellular trafficking between the nucleus and cytoplasm of the cell. The trafficking is regulated by specific sequences, i.e. the nuclear localization signal (NLS) and the nuclear export signal (NES). We performed research on the TCF4 trafficking regulating sequences by mapping and detailed characterization of motifs potentially acting as the NLS or NES. We demonstrate that the bHLH domain of TCF4 contains an NLS that overlaps two NESs. The results of in silico analyses show high conservation of the sequences, especially in the area of the NLS and NESs. This high conservation is not only between mouse and human TCF4, but also between TCF4 and other mammalian E proteins, indicating the importance of these sequences for the functioning of bHLH class I transcription factors.
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33
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Frias AB, Hyzny EJ, Buechel HM, Beppu LY, Xie B, Jurczak MJ, D'Cruz LM. The Transcriptional Regulator Id2 Is Critical for Adipose-Resident Regulatory T Cell Differentiation, Survival, and Function. THE JOURNAL OF IMMUNOLOGY 2019; 203:658-664. [PMID: 31201238 DOI: 10.4049/jimmunol.1900358] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/09/2019] [Indexed: 11/19/2022]
Abstract
Adipose regulatory T cells (aTregs) have emerged as critical cells for the control of local and systemic inflammation. In this study, we show a distinctive role for the transcriptional regulator Id2 in the differentiation, survival, and function of aTregs in mice. Id2 was highly expressed in aTregs compared with high Id3 expression in lymphoid regulatory T cells (Tregs). Treg-specific deletion of Id2 resulted in a substantial decrease in aTregs, whereas Tregs in the spleen and lymph nodes were unaffected. Additionally, loss of Id2 resulted in decreased expression of aTreg-associated markers, including ST2, CCR2, KLRG1, and GATA3. Gene expression analysis revealed that Id2 expression was essential for the survival of aTregs, and loss of Id2 increased cell death in aTregs due to increased Fas expression. Id2-mediated aTreg depletion resulted in increased systemic inflammation, increased inflammatory macrophages and CD8+ effector T cells, and loss of glucose tolerance under standard diet conditions. Thus, we reveal an unexpected and novel function for Id2 in mediating differentiation, survival, and function of aTregs that when lost result in increased metabolic perturbation.
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Affiliation(s)
- Adolfo B Frias
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213; and
| | - Eric J Hyzny
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213; and
| | - Heather M Buechel
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213; and
| | - Lisa Y Beppu
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213; and
| | - Bingxian Xie
- Divison of Endocrinology and the Center for Metabolism and Mitochondrial Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213
| | - Michael J Jurczak
- Divison of Endocrinology and the Center for Metabolism and Mitochondrial Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213
| | - Louise M D'Cruz
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15213; and
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34
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Qian L, Bajana S, Georgescu C, Peng V, Wang HC, Adrianto I, Colonna M, Alberola-Ila J, Wren JD, Sun XH. Suppression of ILC2 differentiation from committed T cell precursors by E protein transcription factors. J Exp Med 2019; 216:884-899. [PMID: 30898894 PMCID: PMC6446881 DOI: 10.1084/jem.20182100] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/24/2019] [Accepted: 02/15/2019] [Indexed: 01/21/2023] Open
Abstract
Qian et al. shows that ILC2s can be generated from not only thymic multipotent progenitors but also committed T cell precursors. These processes are greatly suppressed by E protein transcription factors. Thymic ILC2s show functional differences from those made elsewhere. Current models propose that group 2 innate lymphoid cells (ILC2s) are generated in the bone marrow. Here, we demonstrate that subsets of these cells can differentiate from multipotent progenitors and committed T cell precursors in the thymus, both in vivo and in vitro. These thymic ILC2s exit the thymus, circulate in the blood, and home to peripheral tissues. Ablation of E protein transcription factors greatly promotes the ILC fate while impairing B and T cell development. Consistently, a transcriptional network centered on the ZBTB16 transcription factor and IL-4 signaling pathway is highly up-regulated due to E protein deficiency. Our results show that ILC2 can still arise from what are normally considered to be committed T cell precursors, and that this alternative cell fate is restrained by high levels of E protein activity in these cells. Thymus-derived lung ILC2s of E protein–deficient mice show different transcriptomes, proliferative properties, and cytokine responses from wild-type counterparts, suggesting potentially distinct functions.
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Affiliation(s)
- Liangyue Qian
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK
| | - Sandra Bajana
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK
| | - Constantin Georgescu
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK
| | - Vincent Peng
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - Hong-Cheng Wang
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK
| | - Indra Adrianto
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK.,Department of Public Health Sciences, Henry Ford Health System, Detroit, MI
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - Jose Alberola-Ila
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK.,Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Jonathan D Wren
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK
| | - Xiao-Hong Sun
- Oklahoma Medical Research Foundation, Program in Arthritis and Clinical Immunology, Oklahoma City, OK .,Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK.,Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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35
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Fonseca VR, Ribeiro F, Graca L. T follicular regulatory (Tfr) cells: Dissecting the complexity of Tfr‐cell compartments. Immunol Rev 2019; 288:112-127. [DOI: 10.1111/imr.12739] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/03/2019] [Accepted: 01/10/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Válter R. Fonseca
- Instituto de Medicina Molecular, Faculdade de MedicinaUniversidade de Lisboa Lisboa Portugal
- Centro Hospitalar Lisboa Norte – Hospital de Santa Maria Lisboa Portugal
| | - Filipa Ribeiro
- Instituto de Medicina Molecular, Faculdade de MedicinaUniversidade de Lisboa Lisboa Portugal
- Instituto Gulbenkian de Ciência Oeiras Portugal
| | - Luis Graca
- Instituto de Medicina Molecular, Faculdade de MedicinaUniversidade de Lisboa Lisboa Portugal
- Instituto Gulbenkian de Ciência Oeiras Portugal
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36
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Hayakawa K, Li YS, Shinton SA, Bandi SR, Formica AM, Brill-Dashoff J, Hardy RR. Crucial Role of Increased Arid3a at the Pre-B and Immature B Cell Stages for B1a Cell Generation. Front Immunol 2019; 10:457. [PMID: 30930899 PMCID: PMC6428705 DOI: 10.3389/fimmu.2019.00457] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 02/20/2019] [Indexed: 02/03/2023] Open
Abstract
The Lin28b+Let7− axis in fetal/neonatal development plays a role in promoting CD5+ B1a cell generation as a B-1 B cell developmental outcome. Here we identify the Let7 target, Arid3a, as a crucial molecular effector of the B-1 cell developmental program. Arid3a expression is increased at pro-B cell stage and markedly increased at pre-B and immature B cell stages in the fetal/neonatal liver B-1 development relative to that in the Lin28b−Let7+ adult bone marrow (BM) B-2 cell development. Analysis of B-lineage restricted Lin28b transgenic (Tg) mice, Arid3a knockout and Arid3a Tg mice, confirmed that increased Arid3a allows B cell generation without requiring surrogate light chain (SLC) associated pre-BCR stage, and prevents MHC class II cell expression at the pre-B and newly generated immature B cell stages, distinct from pre-BCR dependent B development with MHC class II in adult BM. Moreover, Arid3a plays a crucial role in supporting B1a cell generation. The increased Arid3a leads higher Myc and Bhlhe41, and lower Siglec-G and CD72 at the pre-B and immature B cell stages than normal adult BM, to allow BCR signaling induced B1a cell generation. Arid3a-deficiency selectively blocks the development of B1a cells, while having no detectable effect on CD5− B1b, MZ B, and FO B cell generation resembling B-2 development outcome. Conversely, enforced expression of Arid3a by transgene is sufficient to promote the development of B1a cells from adult BM. Under the environment change between birth to adult, altered BCR repertoire in increased B1a cells occurred generated from adult BM. However, crossed with B1a-restricted VH/D/J IgH knock-in mice allowed to confirm that SLC-unassociated B1a cell increase and CLL/lymphoma generation can occur in aged from Arid3a increased adult BM. These results confirmed that in fetal/neonatal normal mice, increased Arid3a at the pre-B cell and immature B cell stages is crucial for generating B1a cells together with the environment for self-ligand reactive BCR selection, B1a cell maintenance, and potential for development of CLL/Lymphoma in aged mice.
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Affiliation(s)
- Kyoko Hayakawa
- Fox Chase Cancer Center, Philadelphia, PA, United States
| | - Yue-Sheng Li
- Fox Chase Cancer Center, Philadelphia, PA, United States
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37
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Kim NH, Sadra A, Park HY, Oh SM, Chun J, Yoon JK, Huh SO. HeLa E-Box Binding Protein, HEB, Inhibits Promoter Activity of the Lysophosphatidic Acid Receptor Gene Lpar1 in Neocortical Neuroblast Cells. Mol Cells 2019; 42:123-134. [PMID: 30622227 PMCID: PMC6399008 DOI: 10.14348/molcells.2018.0399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/04/2018] [Accepted: 12/07/2018] [Indexed: 01/20/2023] Open
Abstract
Lysophosphatidic acid (LPA) is an endogenous lysophospholipid with signaling properties outside of the cell and it signals through specific G protein-coupled receptors, known as LPA1-6. For one of its receptors, LPA1 (gene name Lpar1), details on the cis-acting elements for transcriptional control have not been defined. Using 5'RACE analysis, we report the identification of an alternative transcription start site of mouse Lpar1 and characterize approximately 3,500 bp of non-coding flanking sequence 5' of mouse Lpar1 gene for promoter activity. Transient transfection of cells derived from mouse neocortical neuroblasts with constructs from the 5' regions of mouse Lpar1 gene revealed the region between -248 to +225 serving as the basal promoter for Lpar1. This region also lacks a TATA box. For the region between -761 to -248, a negative regulatory element affected the basal expression of Lpar1. This region has three E-box sequences and mutagenesis of these E-boxes, followed by transient expression, demonstrated that two of the E-boxes act as negative modulators of Lpar1. One of these E-box sequences bound the HeLa E-box binding protein (HEB), and modulation of HEB levels in the transfected cells regulated the transcription of the reporter gene. Based on our data, we propose that HEB may be required for a proper regulation of Lpar1 expression in the embryonic neocortical neuroblast cells and to affect its function in both normal brain development and disease settings.
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Affiliation(s)
- Nam-Ho Kim
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, Chuncheon 24252,
Korea
| | - Ali Sadra
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, Chuncheon 24252,
Korea
| | - Hee-Young Park
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, Chuncheon 24252,
Korea
| | - Sung-Min Oh
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, Chuncheon 24252,
Korea
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, CA 92037,
USA
| | - Jeong Kyo Yoon
- Soonchunhyang Institute of Medi-Bio Science, Soonchunhyang University, Asan 31538,
Korea
| | - Sung-Oh Huh
- Department of Pharmacology, College of Medicine, Institute of Natural Medicine, Hallym University, Chuncheon 24252,
Korea
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38
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Hwang SM, Sharma G, Verma R, Byun S, Rudra D, Im SH. Inflammation-induced Id2 promotes plasticity in regulatory T cells. Nat Commun 2018; 9:4736. [PMID: 30413714 PMCID: PMC6226514 DOI: 10.1038/s41467-018-07254-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/23/2018] [Indexed: 12/22/2022] Open
Abstract
TH17 cells originating from regulatory T (Treg) cells upon loss of the Treg-specific transcription factor Foxp3 accumulate in sites of inflammation and aggravate autoimmune diseases. Whether an active mechanism drives the generation of these pathogenic 'ex-Foxp3 TH17' cells, remains unclear. Here we show that pro-inflammatory cytokines enhance the expression of transcription regulator Id2, which mediates cellular plasticity of Treg into ex-Foxp3 TH17 cells. Expression of Id2 in in vitro differentiated iTreg cells reduces the expression of Foxp3 by sequestration of the transcription activator E2A, leading to the induction of TH17-related cytokines. Treg-specific ectopic expression of Id2 in mice significantly reduces the Treg compartment and causes immune dysregulation. Cellular fate-mapping experiments reveal enhanced Treg plasticity compared to wild-type, resulting in exacerbated experimental autoimmune encephalomyelitis pathogenesis or enhanced anti-tumor immunity. Our findings suggest that controlling Id2 expression may provide a novel approach for effective Treg cell immunotherapies for both autoimmunity and cancer.
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Affiliation(s)
- Sung-Min Hwang
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Garima Sharma
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ravi Verma
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
| | - Seohyun Byun
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Dipayan Rudra
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Sin-Hyeog Im
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
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39
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Smith T, Cunningham-Rundles C. Primary B-cell immunodeficiencies. Hum Immunol 2018; 80:351-362. [PMID: 30359632 DOI: 10.1016/j.humimm.2018.10.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/05/2018] [Accepted: 10/21/2018] [Indexed: 12/13/2022]
Abstract
Primary B-cell immunodeficiencies refer to diseases resulting from impaired antibody production due to either molecular defects intrinsic to B-cells or a failure of interaction between B-cells and T-cells. Patients typically have recurrent infections and can vary with presentation and complications depending upon where the defect has occurred in B-cell development or the degree of functional impairment. In this review, we describe B-cell specific immune defects categorized by presence or absence of peripheral B-cells, immunoglobulins isotypes and evidence of antibody impairment.
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Affiliation(s)
- Tukisa Smith
- Division of Allergy and Clinical Immunology, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029-6574, United States; The Rockefeller University, Laboratory of Biochemical Genetics and Metabolism, 1230 York Avenue, Box 179, New York, NY 10065, United States.
| | - Charlotte Cunningham-Rundles
- Division of Allergy and Clinical Immunology, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029-6574, United States.
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40
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Tan TK, Zhang C, Sanda T. Oncogenic transcriptional program driven by TAL1 in T-cell acute lymphoblastic leukemia. Int J Hematol 2018; 109:5-17. [PMID: 30145780 DOI: 10.1007/s12185-018-2518-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/21/2018] [Accepted: 08/06/2018] [Indexed: 12/12/2022]
Abstract
TAL1/SCL is a prime example of an oncogenic transcription factor that is abnormally expressed in acute leukemia due to the replacement of regulator elements. This gene has also been recognized as an essential regulator of hematopoiesis. TAL1 expression is strictly regulated in a lineage- and stage-specific manner. Such precise control is crucial for the switching of the transcriptional program. The misexpression of TAL1 in immature thymocytes leads to a widespread series of orchestrated downstream events that affect several different cellular machineries, resulting in a lethal consequence, namely T-cell acute lymphoblastic leukemia (T-ALL). In this article, we will discuss the transcriptional regulatory network and downstream target genes, including protein-coding genes and non-coding RNAs, controlled by TAL1 in normal hematopoiesis and T-cell leukemogenesis.
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Affiliation(s)
- Tze King Tan
- Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, 14 Medical Drive, #12-01, Singapore, 117599, Singapore
| | - Chujing Zhang
- Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, 14 Medical Drive, #12-01, Singapore, 117599, Singapore
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, 14 Medical Drive, #12-01, Singapore, 117599, Singapore. .,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore.
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41
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Paradoxical role of Id proteins in regulating tumorigenic potential of lymphoid cells. Front Med 2018; 12:374-386. [PMID: 30043222 DOI: 10.1007/s11684-018-0652-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 06/26/2018] [Indexed: 12/11/2022]
Abstract
A family of transcription factors known as Id proteins, or inhibitor of DNA binding and differentiation, is capable of regulating cell proliferation, survival and differentiation, and is often upregulated in multiple types of tumors. Due to their ability to promote self-renewal, Id proteins have been considered as oncogenes, and potential therapeutic targets in cancer models. On the contrary, certain Id proteins are reported to act as tumor suppressors in the development of Burkitt's lymphoma in humans, and hepatosplenic and innate-like T cell lymphomas in mice. The contexts and mechanisms by which Id proteins can serve in such contradictory roles to determine tumor outcomes are still not well understood. In this review, we explore the roles of Id proteins in lymphocyte development and tumorigenesis, particularly with respect to inhibition of their canonical DNA binding partners known as E proteins. Transcriptional regulation by E proteins, and their antagonism by Id proteins, act as gatekeepers to ensure appropriate lymphocyte development at key checkpoints. We re-examine the derailment of these regulatory mechanisms in lymphocytes that facilitate tumor development. These mechanistic insights can allow better appreciation of the context-dependent roles of Id proteins in cancers and improve considerations for therapy.
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42
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Identification of novel lncRNAs regulated by the TAL1 complex in T-cell acute lymphoblastic leukemia. Leukemia 2018; 32:2138-2151. [PMID: 29654272 DOI: 10.1038/s41375-018-0110-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 02/05/2018] [Accepted: 03/09/2018] [Indexed: 12/13/2022]
Abstract
TAL1/SCL is one of the most prevalent oncogenes in T-cell acute lymphoblastic leukemia (T-ALL). TAL1 and its regulatory partners (GATA3, RUNX1, and MYB) positively regulate each other and coordinately regulate the expression of their downstream target genes in T-ALL cells. However, long non-coding RNAs (lncRNAs) regulated by these factors are largely unknown. Here we established a bioinformatics pipeline and analyzed RNA-seq datasets with deep coverage to identify lncRNAs regulated by TAL1 in T-ALL cells. Our analysis predicted 57 putative lncRNAs that are activated by TAL1. Many of these transcripts were regulated by GATA3, RUNX1, and MYB in a coordinated manner. We identified two novel transcripts that were activated in multiple T-ALL cell samples but were downregulated in normal thymocytes. One transcript near the ARID5B gene locus was specifically expressed in TAL1-positive T-ALL cases. The other transcript located between the FAM49A and MYCN gene locus was also expressed in normal hematopoietic stem cells and T-cell progenitor cells. In addition, we identified a subset of lncRNAs that were negatively regulated by TAL1 and positively regulated by E-proteins in T-ALL cells. This included a known lncRNA (lnc-OAZ3-2:7) located near the RORC gene, which was expressed in normal thymocytes but repressed in TAL1-positive T-ALL cells.
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43
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Rauch KS, Hils M, Lupar E, Minguet S, Sigvardsson M, Rottenberg ME, Izcue A, Schachtrup C, Schachtrup K. Id3 Maintains Foxp3 Expression in Regulatory T Cells by Controlling a Transcriptional Network of E47, Spi-B, and SOCS3. Cell Rep 2017; 17:2827-2836. [PMID: 27974197 DOI: 10.1016/j.celrep.2016.11.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 10/17/2016] [Accepted: 11/11/2016] [Indexed: 12/18/2022] Open
Abstract
The transcription factor Foxp3 dominantly controls regulatory T (Treg) cell function, and only its continuous expression guarantees the maintenance of full Treg cell-suppressive capacity. However, transcriptional regulators maintaining Foxp3 transcription are incompletely described. Here, we report that high E47 transcription factor activity in Treg cells resulted in unstable Foxp3 expression. Under homeostatic conditions, Treg cells expressed high levels of the E47 antagonist Id3, thus restricting E47 activity and maintaining Foxp3 expression. In contrast, stimulation of Id3-deficient or E47-overexpressing Treg cells resulted in the loss of Foxp3 expression in a subset of Treg cells in vivo and in vitro. Mechanistic analysis indicated that E47 activated expression of the transcription factor Spi-B and the suppressor of cytokine signaling 3 (SOCS3), which both downregulated Foxp3 expression. These findings demonstrate that the balance of Id3 and E47 controls the maintenance of Foxp3 expression in Treg cells and, thus, contributes to Treg cell plasticity.
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Affiliation(s)
- Katharina S Rauch
- Center for Chronic Immunodeficiency (CCI), Faculty of Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Miriam Hils
- Center for Chronic Immunodeficiency (CCI), Faculty of Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Ekaterina Lupar
- Center for Chronic Immunodeficiency (CCI), Faculty of Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany; Max-Planck-Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Susana Minguet
- Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany
| | - Mikael Sigvardsson
- Institution for Clinical and Experimental Sciences, Faculty of Health Sciences, Linköping University, 58183 Linköping, Sweden
| | - Martin E Rottenberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ana Izcue
- Center for Chronic Immunodeficiency (CCI), Faculty of Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany; Max-Planck-Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Christian Schachtrup
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Kristina Schachtrup
- Center for Chronic Immunodeficiency (CCI), Faculty of Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany.
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44
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Regulatory T cells characterized by low Id3 expression are highly suppressive and accumulate during chronic infection. Oncotarget 2017; 8:102835-102851. [PMID: 29262527 PMCID: PMC5732693 DOI: 10.18632/oncotarget.22159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/10/2017] [Indexed: 11/25/2022] Open
Abstract
Foxp3+ regulatory T (Treg) cells are broadly divided into naive-like and activated Treg cells, however recent studies suggest further Treg cell heterogeneity. Treg cells contribute to impaired T cell responses in chronic infections, but the role of specific Treg cell subpopulations in viral infections is not well defined. Here, we report that activated Treg cells are separated into two transcriptionally distinct subpopulations characterized by low or high expression of the transcriptional regulator Id3. Id3lo Treg cells are a highly suppressive Treg cell subpopulation, expressing elevated levels of immunomodulatory molecules and are capable of broadly targeting T cell responses. Viral infection and interleukin-2 promote the differentiation of Id3hi into Id3lo Treg cells and during chronic infection Id3lo Treg cells are the predominant Treg cell population. Thus, our report provides a framework, in which different activated Treg cell subpopulations specifically affect immune responses, possibly contributing to T cell dysfunction in chronic infections.
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45
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Chen P, Sun S, Zeng K, Li C, Wen J, Liang J, Tian X, Jiang Y, Zhang J, Zhang S, Han K, Han C, Zhang X. Exome sequencing identifies a TCF4 mutation in a Chinese pedigree with symmetrical acral keratoderma. J Eur Acad Dermatol Venereol 2017; 32:1204-1208. [PMID: 28921696 DOI: 10.1111/jdv.14591] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/01/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Symmetrical acral keratoderma (SAK) is a rare skin disorder and its pathogenesis and inheritability are unknown. OBJECTIVES To investigate the inheritance and pathogenesis of SAK. METHODS Four SAK cases occurred in a four-generation Chinese family. Exome sequencing identified SNPs with potential SAK-related mutations, and a potentially responsible gene transcription factor 4 (TCF4) was identified. TCF4 was then sequenced in all 11 family members, and pedigree analysis was performed. Histopathology and immunohistochemistry evaluated TCF4 expression in skin lesions. The gene mutation was investigated in human keratinocytes for keratin-related protein expression. RESULTS A novel heterozygous missense mutation, c.85C>A (p.Pro29Thr) was found in TCF4. The mutation showed autosomal dominant inheritance and perfectly cosegregated with the SAK phenotype in all family members. In skin lesions, TCF4 was present in the cytoplasm and membranes of the basal layer, the stratum spinosum and the stratum granulosum of the epidermis. The mutant TCF4 induced overexpression of differentiation markers including KRT1, KRT14, loricrin and involucrin. CONCLUSIONS A SAK-related gene mutation in TCF4 may function through transcriptional regulation of keratin.
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Affiliation(s)
- P Chen
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Provice, China
| | - S Sun
- Department of Dermatology, Dongguan Sixth People's Hospital, Dongguan, Guangdong Provice, China
| | - K Zeng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Provice, China
| | - C Li
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Provice, China.,Department of Dermatology, Dongguan Sixth People's Hospital, Dongguan, Guangdong Provice, China
| | - J Wen
- Department of Dermatology, Guangdong No.2 Provincial People's Hospital, Guangzhou, Guangdong Provice, China
| | - J Liang
- Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, Guangdong Provice, China
| | - X Tian
- Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, Guangdong Provice, China
| | - Y Jiang
- Department of Dermatology, Dongguan Sixth People's Hospital, Dongguan, Guangdong Provice, China
| | - J Zhang
- Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, Guangdong Provice, China
| | - S Zhang
- Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, Guangdong Provice, China
| | - K Han
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Provice, China
| | - C Han
- Department of Dermatology, Dongguan Sixth People's Hospital, Dongguan, Guangdong Provice, China
| | - X Zhang
- Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, Guangdong Provice, China
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46
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Zhou H, Wang L, Xu Q, Liu Q, Liu H, Qiu W, Hu T, Lv Y, Zhang Q. ID3 may protect mice from anti‑GBM glomerulonephritis by regulating the differentiation of Th17 and Treg cells. Mol Med Rep 2017; 16:9086-9094. [PMID: 28990057 DOI: 10.3892/mmr.2017.7724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 07/31/2017] [Indexed: 11/05/2022] Open
Abstract
Anti‑glomerular basement membrane glomerulonephritis (anti‑GBM GN) is an autoimmune disease that leads to severe and rapidly progressive renal injury. Inhibition of DNA‑binding factor 3 (ID3) serves a key role in autoimmune diseases, such as asthma and Sjögren's syndrome, and in experimental allergic encephalitis models. However, the role of ID3 in the progression of anti‑GBM GN remains unknown. In the present study, ID3 mRNA expression increased between 3‑ and 20‑fold in the renal tissues of anti‑GBM GN mice compared with the Control group, with a peak at day 14 post‑induction. In addition, ID3 protein expression was upregulated from day 7 onwards. The expression of ID3 was also examined in the spleen, and was demonstrated to be increased in the spleen of nephritic mice. T helper 17 (Th17) cells and regulatory T (Treg) cells were present throughout the entire period of observation (from day 7 to day 28) in anti‑GBM GN mice, which may vary at different time points, accompanied with the expression of ID3. In vitro, ID3 expression was increased when CD4+ T cells differentiated into Tregs; however, expression was lower in Th17 cells. Following treatment with ID3 small interfering RNA, RAR‑related orphan receptor γt, but not forkhead box P3, expression increased. Furthermore, increased expression of interleukin‑17A was also observed when ID3 was blocked. In addition, ID3 was able to interact with transcription factor E2A. A significant increase in binding between ID3 and E2A was observed in anti‑GBM GN from day 7 onwards, with a peak at day 14 in both renal tissue and spleen. In conclusion, ID3 may be involved in the differentiation of Th17 and Tregs by downregulating Th17 cells, which is probably associated with binding to E2A. The present results suggested that ID3 may offer protection against anti‑GBM GN in mice.
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Affiliation(s)
- Huan Zhou
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Le Wang
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qing Xu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qingquan Liu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Hui Liu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Wenhui Qiu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Tingyang Hu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yongman Lv
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qian Zhang
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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47
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Tan SH, Bertulfo FC, Sanda T. Leukemia-Initiating Cells in T-Cell Acute Lymphoblastic Leukemia. Front Oncol 2017; 7:218. [PMID: 29034206 PMCID: PMC5627022 DOI: 10.3389/fonc.2017.00218] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/01/2017] [Indexed: 12/26/2022] Open
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is a hematological malignancy characterized by the clonal proliferation of immature T-cell precursors. T-ALL has many similar pathophysiological features to acute myeloid leukemia, which has been extensively studied in the establishment of the cancer stem cell (CSC) theory, but the CSC concept in T-ALL is still debatable. Although leukemia-initiating cells (LICs), which can generate leukemia in a xenograft setting, have been found in both human T-ALL patients and animal models, the nature and origin of LICs are largely unknown. In this review, we discuss recent studies on LICs in T-ALL and the potential mechanisms of LIC emergence in this disease. We focus on the oncogenic transcription factors TAL1, LMO2, and NOTCH1 and highlight the significance of the transcriptional regulatory programs in normal hematopoietic stem cells and T-ALL.
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Affiliation(s)
- Shi Hao Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Fatima Carla Bertulfo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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48
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Pfurr S, Chu YH, Bohrer C, Greulich F, Beattie R, Mammadzada K, Hils M, Arnold SJ, Taylor V, Schachtrup K, Uhlenhaut NH, Schachtrup C. The E2A splice variant E47 regulates the differentiation of projection neurons via p57(KIP2) during cortical development. Development 2017; 144:3917-3931. [PMID: 28939666 DOI: 10.1242/dev.145698] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 09/11/2017] [Indexed: 02/01/2023]
Abstract
During corticogenesis, distinct classes of neurons are born from progenitor cells located in the ventricular and subventricular zones, from where they migrate towards the pial surface to assemble into highly organized layer-specific circuits. However, the precise and coordinated transcriptional network activity defining neuronal identity is still not understood. Here, we show that genetic depletion of the basic helix-loop-helix (bHLH) transcription factor E2A splice variant E47 increased the number of Tbr1-positive deep layer and Satb2-positive upper layer neurons at E14.5, while depletion of the alternatively spliced E12 variant did not affect layer-specific neurogenesis. While ChIP-Seq identified a big overlap for E12- and E47-specific binding sites in embryonic NSCs, including sites at the cyclin-dependent kinase inhibitor (CDKI) Cdkn1c gene locus, RNA-Seq revealed a unique transcriptional regulation by each splice variant. E47 activated the expression of the CDKI Cdkn1c through binding to a distal enhancer. Finally, overexpression of E47 in embryonic NSCs in vitro impaired neurite outgrowth, and overexpression of E47 in vivo by in utero electroporation disturbed proper layer-specific neurogenesis and upregulated p57(KIP2) expression. Overall, this study identifies E2A target genes in embryonic NSCs and demonstrates that E47 regulates neuronal differentiation via p57(KIP2).
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Affiliation(s)
- Sabrina Pfurr
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany.,Faculty of Biology, University of Freiburg, Freiburg 79104, Germany
| | - Yu-Hsuan Chu
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany.,Faculty of Biology, University of Freiburg, Freiburg 79104, Germany
| | - Christian Bohrer
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany.,Faculty of Biology, University of Freiburg, Freiburg 79104, Germany
| | - Franziska Greulich
- Helmholtz Diabetes Center (HDC) and German Center for Diabetes Research (DZD), Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Robert Beattie
- Department of Biomedicine, Embryology and Stem Cell Biology, University of Basel, Basel 4058, Switzerland
| | - Könül Mammadzada
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany.,Faculty of Biology, University of Freiburg, Freiburg 79104, Germany
| | - Miriam Hils
- Faculty of Biology, University of Freiburg, Freiburg 79104, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg 79106, Germany
| | - Sebastian J Arnold
- Institute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany.,BIOSS Centre of Biological Signalling Studies, Albert-Ludwigs-University, Freiburg 79104, Germany
| | - Verdon Taylor
- Department of Biomedicine, Embryology and Stem Cell Biology, University of Basel, Basel 4058, Switzerland
| | - Kristina Schachtrup
- Faculty of Biology, University of Freiburg, Freiburg 79104, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg 79106, Germany
| | - N Henriette Uhlenhaut
- Helmholtz Diabetes Center (HDC) and German Center for Diabetes Research (DZD), Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Christian Schachtrup
- Institute of Anatomy and Cell Biology, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany
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49
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The E-Id Protein Axis Specifies Adaptive Lymphoid Cell Identity and Suppresses Thymic Innate Lymphoid Cell Development. Immunity 2017; 46:818-834.e4. [PMID: 28514688 DOI: 10.1016/j.immuni.2017.04.022] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/26/2017] [Accepted: 04/27/2017] [Indexed: 01/24/2023]
Abstract
Innate and adaptive lymphoid development is orchestrated by the activities of E proteins and their antagonist Id proteins, but how these factors regulate early T cell progenitor (ETP) and innate lymphoid cell (ILC) development remains unclear. Using multiple genetic strategies, we demonstrated that E proteins E2A and HEB acted in synergy in the thymus to establish T cell identity and to suppress the aberrant development of ILCs, including ILC2s and lymphoid-tissue-inducer-like cells. E2A and HEB orchestrated T cell fate and suppressed the ILC transcription signature by activating the expression of genes associated with Notch receptors, T cell receptor (TCR) assembly, and TCR-mediated signaling. E2A and HEB acted in ETPs to establish and maintain a T-cell-lineage-specific enhancer repertoire, including regulatory elements associated with the Notch1, Rag1, and Rag2 loci. On the basis of these and previous observations, we propose that the E-Id protein axis specifies innate and adaptive lymphoid cell fate.
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50
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Sanda T, Leong WZ. TAL1 as a master oncogenic transcription factor in T-cell acute lymphoblastic leukemia. Exp Hematol 2017; 53:7-15. [PMID: 28652130 DOI: 10.1016/j.exphem.2017.06.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 06/11/2017] [Indexed: 11/29/2022]
Abstract
In hematopoietic cell development, the transcriptional program is strictly regulated in a lineage- and stage-specific manner that requires a number of transcription factors to work in a cascade or in a loop, in addition to interactions with nonhematopoietic cells in the microenvironment. Disruption of the transcriptional program alters the cellular state and may predispose cells to the acquisition of genetic abnormalities. Early studies have shown that proteins that promote cell differentiation often serve as tumor suppressors, whereas inhibitors of those proteins act as oncogenes in the context of acute leukemia. A prime example is T-cell acute lymphoblastic leukemia (T-ALL), a malignant disorder characterized by clonal proliferation of immature stage thymocytes. Although a relatively small number of genetic abnormalities are observed in T-ALL, these abnormalities are crucial for leukemogenesis. Many oncogenes and tumor suppressors in T-ALL are transcription factors that are required for normal hematopoiesis. The transformation process in T-ALL is efficient and orchestrated; the oncogene disrupts the transcriptional program directing T-cell differentiation and also uses its native ability as a master transcription factor in hematopoiesis. This imbalance in the transcriptional program is a primary determinant underlying the molecular pathogenesis of T-ALL. In this review, we focus on the oncogenic transcription factor TAL1 and the tumor-suppressor E-proteins and discuss the malignant cell state, the transcriptional circuit, and the consequence of molecular abnormalities in T-ALL.
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Affiliation(s)
- Takaomi Sanda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
| | - Wei Zhong Leong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
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