1
|
Zhao Y, Zhao M, Li M, Ma X, Zheng M, Nie Y, Zhu Y, Ren J, Hasimu A, Yuan Z, Li Q, Bahabayi A, Zhang Z, Zeng X, Liu C. Alterations in Helios+ T cell subsets in peripheral blood of early-stage lung adenocarcinoma patients: Implications for early diagnosis. Immunobiology 2023; 228:152749. [PMID: 37778128 DOI: 10.1016/j.imbio.2023.152749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/05/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVE This study aimed to investigate the changes and significance of circulating Helios-associated T cell subsets in patients with early-stage lung adenocarcinoma (LUAD). METHODS Blood samples were collected from 35 healthy controls and 34 patients with early-stage LUAD. Flow cytometry was used to analyze various CD4+ T cell subsets, including regulatory T(Treg) cells, follicular regulatory T(Tfr) cells, follicular helper T (Tfh) cells, and conventional T (con-T) cells. Correlation analysis was conducted to investigate the association of Helios-related subsets with clinical indicators. The ROC curve was used to explore the potential clinical value of Helios+ T cell subsets in the screening of patients with early LUAD. Fifteen of these patients were tracked after lung cancer resection and changes in Helios+ T cell subsets before and after treatment were analyzed. RESULTS The percentage and absolute number of Tregs were up-regulated in LUAD patients while Tfh and con-T cells expressing Helios were down-regulated. Absolute counts of Tfr and con-T cells and Helios expression in Tfr and Treg decreased significantly after resection. Helios+ Tfh and con-T were negatively correlated with certain tumor markers. Areas under the curve (AUCs) of percentages and absolute counts of Helios+ Tfh, Treg, Tfr and con-T cells to distinguish early LUAD from healthy individuals were 0.7277, 0.5697, 0.5718, 0.7210 (percentages), 0.7336, 0.7378, 0.5908 and 0.7445(absolute numbers), respectively. CONCLUSION Helios+ T cell subsets in peripheral blood of early-stage LUAD patients has changed significantly, which may be related to the pathogenesis of LUAD and could help for early diagnosis of LUAD.
Collapse
Affiliation(s)
- Yiming Zhao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ming Zhao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Meng Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xiancan Ma
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Mohan Zheng
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yuying Nie
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Yaoyi Zhu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Jiaxin Ren
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Zihang Yuan
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Qi Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Zhonghui Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xingyue Zeng
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China.
| |
Collapse
|
2
|
Wang Y, Zhao H, He Y, Zhang P, Zeng C, Du T, Shen Q, Chen Y, Zhao S. IKZF4 acts as a novel tumor suppressor in non-small cell lung cancer by suppressing Notch signaling pathway. Cell Signal 2023; 107:110679. [PMID: 37044192 DOI: 10.1016/j.cellsig.2023.110679] [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: 02/07/2023] [Revised: 03/24/2023] [Accepted: 04/08/2023] [Indexed: 04/14/2023]
Abstract
Non-small cell lung cancer (NSCLC) is the predominant cause of cancer-related mortality globally, although many clinical efforts have been developed to improve the outcomes. The Ikaros zing-finger family transcription factors (IKZFs) have been proved to play pivotal roles in lymphopoiesis and myeloma progression, but their roles in solid tumors development remain unclear. We performed integrative bioinformatical analysis to determine the dysregulation expression of IKZFs in multiple tumors and the correlation between IKZF4 and NSCLC tumor environment. We showed that IKZFs were dysregulated in multiple tumors and IKZF4 was significantly decreased in NSCLC tissues and cell lines due to promoter hypermethylation. We found that low IKZF4 expression obviously correlated with patients' poor clinical outcome. We revealed that IKZF4 overexpression inhibited NSCLC cell growth, migration and xenograft tumor growth, supporting the inhibitory role of IKZF4 in NSCLC tumorigenesis. Additionally, integrative bioinformatical analysis showed that IKZF4 was involved in NSCLC tumor microenvironment. Mechanically, RNA-seq results showed that IKZF4 forced-expression remarkably suppressed Notch signaling pathway in NSCLC, which was validated by qRT-PCR and immunoblot assays. Moreover, we screened several potential agonists for IKZF4.
Collapse
Affiliation(s)
- Yanbo Wang
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - Hanqing Zhao
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yaomei He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Zhang
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China
| | - Cheng Zeng
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Tongxuan Du
- Institute of Biomedical Engineering, Kunming Medical University, Kunming, Yunnan 650500, China
| | - Qiushuo Shen
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Institute of Biomedical Engineering, Kunming Medical University, Kunming, Yunnan 650500, China.
| | - Yongbin Chen
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, Yunnan 650223, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Song Zhao
- Department of Thoracic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| |
Collapse
|
3
|
Park SM, Miyamoto DK, Han GYQ, Chan M, Curnutt NM, Tran NL, Velleca A, Kim JH, Schurer A, Chang K, Xu W, Kharas MG, Woo CM. Dual IKZF2 and CK1α degrader targets acute myeloid leukemia cells. Cancer Cell 2023; 41:726-739.e11. [PMID: 36898380 PMCID: PMC10466730 DOI: 10.1016/j.ccell.2023.02.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/06/2022] [Accepted: 02/09/2023] [Indexed: 03/12/2023]
Abstract
Acute myeloid leukemia (AML) is a hematologic malignancy for which several epigenetic regulators have been identified as therapeutic targets. Here we report the development of cereblon-dependent degraders of IKZF2 and casein kinase 1α (CK1α), termed DEG-35 and DEG-77. We utilized a structure-guided approach to develop DEG-35 as a nanomolar degrader of IKZF2, a hematopoietic-specific transcription factor that contributes to myeloid leukemogenesis. DEG-35 possesses additional substrate specificity for the therapeutically relevant target CK1α, which was identified through unbiased proteomics and a PRISM screen assay. Degradation of IKZF2 and CK1α blocks cell growth and induces myeloid differentiation in AML cells through CK1α-p53- and IKZF2-dependent pathways. Target degradation by DEG-35 or a more soluble analog, DEG-77, delays leukemia progression in murine and human AML mouse models. Overall, we provide a strategy for multitargeted degradation of IKZF2 and CK1α to enhance efficacy against AML that may be expanded to additional targets and indications.
Collapse
Affiliation(s)
- Sun-Mi Park
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David K Miyamoto
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Grace Y Q Han
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mandy Chan
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nicole M Curnutt
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Nathan L Tran
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Anthony Velleca
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jun Hyun Kim
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexandra Schurer
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kathryn Chang
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Wenqing Xu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Michael G Kharas
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Christina M Woo
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA; Broad Institute, Cambridge, MA, USA.
| |
Collapse
|
4
|
Wong YY, Harbison JE, Hope CM, Gundsambuu B, Brown KA, Wong SW, Brown CY, Couper JJ, Breen J, Liu N, Pederson SM, Köhne M, Klee K, Schultze J, Beyer M, Sadlon T, Barry SC. Parallel recovery of chromatin accessibility and gene expression dynamics from frozen human regulatory T cells. Sci Rep 2023; 13:5506. [PMID: 37016052 PMCID: PMC10073253 DOI: 10.1038/s41598-023-32256-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 03/24/2023] [Indexed: 04/06/2023] Open
Abstract
Epigenetic features such as DNA accessibility dictate transcriptional regulation in a cell type- and cell state- specific manner, and mapping this in health vs. disease in clinically relevant material is opening the door to new mechanistic insights and new targets for therapy. Assay for Transposase Accessible Chromatin Sequencing (ATAC-seq) allows chromatin accessibility profiling from low cell input, making it tractable on rare cell populations, such as regulatory T (Treg) cells. However, little is known about the compatibility of the assay with cryopreserved rare cell populations. Here we demonstrate the robustness of an ATAC-seq protocol comparing primary Treg cells recovered from fresh or cryopreserved PBMC samples, in the steady state and in response to stimulation. We extend this method to explore the feasibility of conducting simultaneous quantitation of chromatin accessibility and transcriptome from a single aliquot of 50,000 cryopreserved Treg cells. Profiling of chromatin accessibility and gene expression in parallel within the same pool of cells controls for cellular heterogeneity and is particularly beneficial when constrained by limited input material. Overall, we observed a high correlation of accessibility patterns and transcription factor dynamics between fresh and cryopreserved samples. Furthermore, highly similar transcriptomic profiles were obtained from whole cells and from the supernatants recovered from ATAC-seq reactions. We highlight the feasibility of applying these techniques to profile the epigenomic landscape of cells recovered from cryopreservation biorepositories.
Collapse
Affiliation(s)
- Ying Y Wong
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Jessica E Harbison
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Women's and Children's Hospital, North Adelaide, Australia
| | - Christopher M Hope
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Women's and Children's Hospital, North Adelaide, Australia
| | | | - Katherine A Brown
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Soon W Wong
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Cheryl Y Brown
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Women's and Children's Hospital, North Adelaide, Australia
| | - Jennifer J Couper
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Women's and Children's Hospital, North Adelaide, Australia
| | - Jimmy Breen
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Ning Liu
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Stephen M Pederson
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Maren Köhne
- German Center for Neurodegenerative Diseases, University of Bonn, Bonn, Germany
| | - Kathrin Klee
- German Center for Neurodegenerative Diseases, University of Bonn, Bonn, Germany
| | - Joachim Schultze
- German Center for Neurodegenerative Diseases, University of Bonn, Bonn, Germany
| | - Marc Beyer
- German Center for Neurodegenerative Diseases, University of Bonn, Bonn, Germany
| | - Timothy Sadlon
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Women's and Children's Hospital, North Adelaide, Australia
| | - Simon C Barry
- Robinson Research Institute, University of Adelaide, Adelaide, Australia.
- Women's and Children's Hospital, North Adelaide, Australia.
| |
Collapse
|
5
|
The Association between Regulatory T Cell Subpopulations and Severe Pneumonia Post Renal Transplantation. J Immunol Res 2022; 2022:8720438. [PMID: 35437510 PMCID: PMC9013297 DOI: 10.1155/2022/8720438] [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: 10/24/2021] [Revised: 03/05/2022] [Accepted: 03/10/2022] [Indexed: 11/18/2022] Open
Abstract
Severe pneumonia accounts for the majority of morbidity and mortality in renal allograft recipients due to immunosuppressant maintenance. Regulatory T cells (Tregs), which are involved in tackling infections under immunosuppressive conditions, are rarely uncovered. We aimed to investigate the relationship between various Treg subpopulations and severe pneumonia after kidney transplantation (KTx). KTx recipients with pneumonia were divided into severe pneumonia and mild pneumonia groups. The frequencies and absolute numbers (Ab No.) of total Tregs (CD4+CD25+FoxP3+), six subsets of Tregs (Helios+/-, CD39+/-, and CD45RA+/-), and T cells, B cells, and NK cells were assessed from peripheral blood via flow cytometry using the
or Mann-Whitney test and receiver operating curve analysis. We also determined the median fluorescence intensity (MFI) of human leukocyte antigen- (HLA-) DR on monocytes and CD64 on neutrophils. Logistic regression was used to identify the risk factors of disease progression, and Pearson’s correlation analysis was performed to identify relationships between the measured immune indices and patients’ clinical information. Our research indicated that Treg subpopulations were strongly associated with severe pneumonia progression post KTx. Based on the monitoring of Treg subpopulations, better-individualized prevention and therapy might be achieved for patients with severe pneumonia post KTx.
Collapse
|
6
|
Zhang W, Liu X, Zhu Y, Liu X, Gu Y, Dai X, Li B. Transcriptional and posttranslational regulation of Th17/Treg balance in health and disease. Eur J Immunol 2021; 51:2137-2150. [PMID: 34322865 DOI: 10.1002/eji.202048794] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 06/14/2021] [Accepted: 07/20/2021] [Indexed: 12/17/2022]
Abstract
Regulatory T (Treg) cells and T helper type 17 (Th17) cells play important roles in adaptive immune responses, antagonizing each other in immune disorders. Th17/Treg balance is critical to maintaining the immune homeostasis of human bodies and is tightly regulated under healthy conditions. The transcription factors that are required for driving Th17 and Treg cell lineages differentiation respectively, RORγt and FOXP3 are tightly regulated under different tissue microenvironment, especially the transcriptional induction, posttranslational modifications, and dynamic enzymatic cofactors binding. The imbalance caused by alteration of the quantity or properties of RORγt+ Th17 or FOXP3+ Treg can contribute to inflammatory disorders in humans. Restoring Th17/Treg balance by modifying the enzymatic activities of RORγt and FOXP3 binding partners may be therapeutically applied to treat severe immune disorders. In this review, we focus on the transcriptional and posttranslational regulations of Th17/Treg balance, immune disorders caused by Th17/Treg imbalance, and new therapeutic strategies for restoring immune homeostasis.
Collapse
Affiliation(s)
- Weiqi Zhang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xu Liu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yicheng Zhu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinnan Liu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yunting Gu
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xueyu Dai
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bin Li
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
7
|
Teer E, Joseph DE, Dominick L, Glashoff RH, Essop MF. Expansion of GARP-Expressing CD4 +CD25 -FoxP3 + T Cells and SATB1 Association with Activation and Coagulation in Immune Compromised HIV-1-Infected Individuals in South Africa. Virol Sin 2021; 36:1133-1143. [PMID: 33974229 DOI: 10.1007/s12250-021-00386-8] [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: 09/17/2020] [Accepted: 02/23/2021] [Indexed: 11/24/2022] Open
Abstract
Although antiretroviral treatment lowers the burden of human immunodeficiency virus (HIV)-related disease, it does not always result in immunological recovery. This manifests as persistent chronic inflammation, immune activation or exhaustion that can promote the onset of co-morbidities. As the exact function of regulatory T (Treg) cells in HIV remains unclear, this cross-sectional study investigated three expression markers (Forkhead box protein P3 [FOXP3], glycoprotein A repetitions predominant [GARP], special AT-rich sequence binding protein 1 [SATB1]) and compared their expansion between CD4+CD25- and CD4+CD25++ T cells. Age-matched study subjects were recruited (Western Cape, South Africa) and sub-divided: HIV-negative subjects (n = 12), HIV-positive naïve treated (n = 22), HIV-positive treated based on CD4 count cells/µL (CD4 > 500 and CD4 < 500) (n = 34) and HIV-treated based on viral load (VL) copies/mL (VL < 1000 and VL > 1000) (n = 34). Markers of immune activation (CD38) and coagulation (CD142) on T cells (CD8) were assessed by flow cytometry together with FOXP3, GARP and SATB1 expression on CD4+CD25- and CD4+CD25++ T cells. Plasma levels of interleukin-10 (IL-10; anti-inflammatory marker), IL-6 (inflammatory marker) and D-dimer (coagulation marker) were assessed. This study revealed three major findings in immuno-compromised patients with virological failure (CD4 < 500; VL > 1000): (1) the expansion of the unconventional Treg cell subset (CD4+CD25-FOXP3+) is linked with disease progression markers; (2) increased GARP expression in the CD4+CD25- and CD4+CD25++ subsets; and (3) the identification of a strong link between CD4+CD25-SATB1+ cells and markers of immune activation (CD8+CD38+) and coagulation (CD8+CD142+ and D-dimer).
Collapse
Affiliation(s)
- Eman Teer
- Centre for Cardio-Metabolic Research in Africa (CARMA), Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Danzil E Joseph
- Centre for Cardio-Metabolic Research in Africa (CARMA), Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Leanne Dominick
- Centre for Cardio-Metabolic Research in Africa (CARMA), Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Richard H Glashoff
- Division of Medical Microbiology and Immunology, Department of Pathology, Stellenbosch University and NHLS, Cape Town, 7505, South Africa
| | - M Faadiel Essop
- Centre for Cardio-Metabolic Research in Africa (CARMA), Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa.
| |
Collapse
|
8
|
Hui Z, Zhang J, Zheng Y, Yang L, Yu W, An Y, Wei F, Ren X. Single-Cell Sequencing Reveals the Transcriptome and TCR Characteristics of pTregs and in vitro Expanded iTregs. Front Immunol 2021; 12:619932. [PMID: 33868236 PMCID: PMC8044526 DOI: 10.3389/fimmu.2021.619932] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/23/2021] [Indexed: 01/29/2023] Open
Abstract
Regulatory T cells (Tregs) play a critical role in the maintenance of immune tolerance and tumor evasion. However, the relative low proportion of these cells in peripheral blood and tissues has hindered many studies. We sought to establish a rapamycin-based in vitro Treg expansion procedure in patients diagnosed with colorectal cancer and perform single-cell sequencing to explore the characteristics of Treg cells. CD25+ cells enriched from peripheral blood mononuclear cells (PBMC) of colorectal tumor patients were cultured in X-VIVO15 medium, supplemented with 5% human AB serum, L-glutamine, rapamycin, interleukin-2 (IL-2), and Dynabeads human Treg expander for 21 days to expand Tregs. Treg cells with satisfactory phenotype and function were successfully expanded from CD4+CD25+ cells in patients with colorectal cancer. The median expansion fold was 75 (range, 20-105-fold), and >90.0% of the harvest cells were CD4+CD25+CD127dim/- cells. The ratio of CD4+CD25+Foxp3+ cells exceeded 60%. Functional assays showed that iTregs significantly inhibited CD8+T cell proliferation in vitro. Single-cell sequencing showed that the transcriptome of pTreg (CD4+CD25+CD127dim/- cells isolated from PBMC of colorectal cancer patients) and iTreg (CD4+CD25+CD127dim/- cells expanded in vitro according to the above regimen) cells were interlaced. pTregs exhibited enhanced suppressive function, whereas iTregs exhibited increased proliferative capacity. TCR repertoire analysis indicated minimal overlap between pTregs and iTregs. Pseudo-time trajectory analysis of Tregs revealed that pTregs were a continuum composed of three main branches: activated/effector, resting and proliferative Tregs. In contrast, in vitro expanded iTregs were a mixture of proliferating and activated/effector cells. The expression of trafficking receptors was also different in pTregs and iTregs. Various chemokine receptors were upregulated in pTregs. Activated effector pTregs overexpressed the chemokine receptor CCR10, which was not expressed in iTregs. The chemokine CCL28 was overexpressed in colorectal cancer and associated with poor prognosis. CCR10 interacted with CCL28 to mediate the recruitment of Treg into tumors and accelerated tumor progression. Depletion of CCR10+Treg cells from tumor microenvironment (TME) could be used as an effective treatment strategy for colorectal cancer patients. Our data distinguished the transcriptomic characteristics of different subsets of Treg cells and revealed the context-dependent functions of different populations of Treg cells, which was crucial to the development of alternative therapeutic strategies for Treg cells in autoimmune disease and cancer.
Collapse
Affiliation(s)
- Zhenzhen Hui
- Department of Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jiali Zhang
- Department of Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yu Zheng
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Lili Yang
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Wenwen Yu
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yang An
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Feng Wei
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xiubao Ren
- Department of Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| |
Collapse
|
9
|
Iwaszkiewicz-Grzes D, Piotrowska M, Gliwinski M, Urban-Wójciuk Z, Trzonkowski P. Antigenic Challenge Influences Epigenetic Changes in Antigen-Specific T Regulatory Cells. Front Immunol 2021; 12:642678. [PMID: 33868279 PMCID: PMC8044853 DOI: 10.3389/fimmu.2021.642678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/03/2021] [Indexed: 12/20/2022] Open
Abstract
Background Human regulatory T cells (Tregs) are the fundamental component of the immune system imposing immune tolerance via control of effector T cells (Teffs). Ongoing attempts to improve Tregs function have led to the creation of a protocol that produces antigen-specific Tregs, when polyclonal Tregs are stimulated with monocytes loaded with antigens specific for type 1 diabetes. Nevertheless, the efficiency of the suppression exerted by the produced Tregs depended on the antigen with the best results when insulin β chain peptide 9-23 was used. Here, we examined epigenetic modifications, which could influence these functional differences. Methods The analysis was pefromed in the sorted specific (SPEC, proliferating) and unspecific (UNSPEC, non-proliferating) subsets of Tregs and Teffs generated by the stimulation with monocytes loaded with either whole insulin (INS) or insulin β chain peptide 9-23 (B:9-23) or polyclonal cells stimulated with anti-CD3/anti-CD28 beads (POLY). A relative expression of crucial Tregs genes was determined by qRT-PCR. The Treg-specific demethylated region (TSDR) in FoxP3 gene methylation levels were assessed by Quantitative Methylation Specific PCR (qMSP). ELISA was used to measure genomic DNA methylation and histone H3 post-translational modifications (PTMs). Results Tregs SPECB:9-23 was the only subset expressing all assessed genes necessary for regulatory function with the highest level of expression among all analyzed conditions. The methylation of global DNA as well as TSDR were significantly lower in Tregs SPECB:9-23 than in Tregs SPECINS. When compared to Teffs, Tregs were characterized by a relatively lower level of PTMs but it varied in respective Tregs/Teffs pairs. Importantly, whenever the difference in PTM within Tregs/Teffs pair was significant, it was always low in one subset from the pair and high in the other. It was always low in Tregs SPECINS and high in Teffs SPECINS, while it was high in Tregs UNSPECINS and low in Teffs UNSPECINS. There were no differences in Tregs/Teffs SPECB:9-23 pair and the level of modifications was low in Tregs UNSPECB:9-23 and high in Teffs UNSPECB:9-23. The regions of PTMs in which differences were significant overlapped only partially between particular Tregs/Teffs pairs. Conclusions Whole insulin and insulin β chain peptide 9-23 affected epigenetic changes in CD4+ T cells differently, when presented by monocytes. The peptide preferably favored specific Tregs, while whole insulin activated both Tregs and Teffs.
Collapse
Affiliation(s)
| | | | - Mateusz Gliwinski
- Department of Medical Immunology, Medical University of Gdansk, Gdańsk, Poland
| | - Zuzanna Urban-Wójciuk
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Piotr Trzonkowski
- Department of Medical Immunology, Medical University of Gdansk, Gdańsk, Poland
| |
Collapse
|
10
|
Brown CY, Sadlon T, Hope CM, Wong YY, Wong S, Liu N, Withers H, Brown K, Bandara V, Gundsambuu B, Pederson S, Breen J, Robertson SA, Forrest A, Beyer M, Barry SC. Molecular Insights Into Regulatory T-Cell Adaptation to Self, Environment, and Host Tissues: Plasticity or Loss of Function in Autoimmune Disease. Front Immunol 2020; 11:1269. [PMID: 33072063 PMCID: PMC7533603 DOI: 10.3389/fimmu.2020.01269] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 05/19/2020] [Indexed: 12/19/2022] Open
Abstract
There has been much interest in the ability of regulatory T cells (Treg) to switch function in vivo, either as a result of genetic risk of disease or in response to environmental and metabolic cues. The relationship between levels of FOXP3 and functional fitness plays a significant part in this plasticity. There is an emerging role for Treg in tissue repair that may be less dependent on FOXP3, and the molecular mechanisms underpinning this are not fully understood. As a result of detailed, high-resolution functional genomics, the gene regulatory networks and key functional mediators of Treg phenotype downstream of FOXP3 have been mapped, enabling a mechanistic insight into Treg function. This transcription factor-driven programming of T-cell function to generate Treg requires the switching on and off of key genes that form part of the Treg gene regulatory network and raises the possibility that this is reversible. It is plausible that subtle shifts in expression levels of specific genes, including transcription factors and non-coding RNAs, change the regulation of the Treg gene network. The subtle skewing of gene expression initiates changes in function, with the potential to promote chronic disease and/or to license appropriate inflammatory responses. In the case of autoimmunity, there is an underlying genetic risk, and the interplay of genetic and environmental cues is complex and impacts gene regulation networks frequently involving promoters and enhancers, the regulatory elements that control gene expression levels and responsiveness. These promoter–enhancer interactions can operate over long distances and are highly cell type specific. In autoimmunity, the genetic risk can result in changes in these enhancer/promoter interactions, and this mainly impacts genes which are expressed in T cells and hence impacts Treg/conventional T-cell (Tconv) function. Genetic risk may cause the subtle alterations to the responsiveness of gene regulatory networks which are controlled by or control FOXP3 and its target genes, and the application of assays of the 3D organization of chromatin, enabling the connection of non-coding regulatory regions to the genes they control, is revealing the direct impact of environmental/metabolic/genetic risk on T-cell function and is providing mechanistic insight into susceptibility to inflammatory and autoimmune conditions.
Collapse
Affiliation(s)
- Cheryl Y Brown
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Timothy Sadlon
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia.,Women's and Children's Health Network, North Adelaide, SA, Australia
| | | | - Ying Y Wong
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Soon Wong
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Ning Liu
- Bioinformatics Hub, University of Adelaide, Adelaide, SA, Australia
| | - Holly Withers
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Katherine Brown
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Veronika Bandara
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Batjargal Gundsambuu
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Stephen Pederson
- Bioinformatics Hub, University of Adelaide, Adelaide, SA, Australia
| | - James Breen
- Bioinformatics Hub, University of Adelaide, Adelaide, SA, Australia
| | - Sarah Anne Robertson
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Alistair Forrest
- QEII Medical Centre and Centre for Medical Research, Harry Perkins Institute of Medical Research, Murdoch, WA, Australia
| | - Marc Beyer
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Simon Charles Barry
- Molecular Immunology, Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia.,Women's and Children's Health Network, North Adelaide, SA, Australia
| |
Collapse
|
11
|
Abstract
The cochlea, a coiled structure located in the ventral region of the inner ear, acts as the primary structure for the perception of sound. Along the length of the cochlear spiral is the organ of Corti, a highly derived and rigorously patterned sensory epithelium that acts to convert auditory stimuli into neural impulses. The development of the organ of Corti requires a series of inductive events that specify unique cellular characteristics and axial identities along its three major axes. Here, we review recent studies of the cellular and molecular processes regulating several aspects of cochlear development, such as axial patterning, cochlear outgrowth and cellular differentiation. We highlight how the precise coordination of multiple signaling pathways is required for the successful formation of a complete organ of Corti.
Collapse
Affiliation(s)
- Elizabeth Carroll Driver
- Laboratory of Cochlear Development, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD 20892, USA
| | - Matthew W Kelley
- Laboratory of Cochlear Development, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD 20892, USA
| |
Collapse
|
12
|
Luo X, Xu L, Wu X, Tan H, Liu L. Decreased SATB1 expression promotes AML cell proliferation through NF-κB activation. Cancer Cell Int 2019; 19:134. [PMID: 31130823 PMCID: PMC6525380 DOI: 10.1186/s12935-019-0850-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 05/07/2019] [Indexed: 12/28/2022] Open
Abstract
Background Special AT-rich sequence-binding protein 1 (SATB1) is a chromatin-remodeling protein that regulates gene expressions in different types of cancer. Up-regulation of SATB1 is linked with progression of tumors. Our previous study showed that SATB1 expression was decreased in T cell leukemia/lymphoma. The contrary roles of SATB1 in solid organ tumors and hematology malignancy may provide hints to study the function of SATB1. Methods To characterize SATB1 mRNA and protein expression in acute myeloid leukemia (AML), we performed qRT-PCR and Western blot on bone marrow mononuclear cells from 52 newly diagnosed AML patients. Stable HL-60 cell lines with knockdown of SATB1 by shRNAs sequences (HL-60 SATB1-shRNA1 and HL-60 SATB1-shRNA2) were established. Cell proliferation, cell cycle and cell invasiveness were analyzed. Murine model was established using HL-60 SATB1-shRNAs treated nude mice and tumorigenicity was compared to study the role of SATB1 in vivo. Global gene expression profiles were analyzed in HL-60 cells with SATB1 knockdown to investigate the mechanisms underlying the regulation of AML cell growth by SATB1. Results We found that SATB1 expression was significantly decreased in patients with AML compared to normal control, and was increased after complete remission of AML. Knockdown of SATB1 enhanced the proliferation of HL-60 cells and accelerated S phase entry in vitro, and promoted the tumor growth in vivo. Global gene expression profiles were analyzed in HL-60 cells with SATB1 knockdown and the differentially expressed genes were involved in NF-κB, MAPK and PI3 K/Akt signaling pathways. Nuclear NF-κB p65 levels were significantly increased in SATB1 depleted HL-60 cells. Conclusions Decreased SATB1 expression promotes AML cell proliferation through NF-κB activation. SATB1 could be a predictor for better response to treatment in AML.
Collapse
Affiliation(s)
- Xiaodan Luo
- Department of Hematology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510230 China
| | - Lihua Xu
- Department of Hematology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510230 China
| | - Xiaohong Wu
- Department of Hematology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510230 China
| | - Huo Tan
- Department of Hematology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510230 China
| | - Lian Liu
- Department of Hematology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510230 China
| |
Collapse
|
13
|
Adil AAM, Bommanabonia AK, Vaithy A, Kumar S, Waseem M, Jamal S, Ahmed N. Differential expression of Helios, Neuropilin-1 and FoxP3 in head and neck squamous cell carcinoma (HNSCC) patients. 3 Biotech 2019; 9:178. [PMID: 30997315 DOI: 10.1007/s13205-019-1707-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 04/06/2019] [Indexed: 12/24/2022] Open
Abstract
In recent years, studies have begun to explore the immune involvement in head and neck tumors. Advanced stage head and neck squamous cell carcinoma (HNSCC) has a poor prognosis with low survival rates with high level of immune infiltrates. Tregs (regulatory T cells) play a crucial role in constructing an immunosuppressive tumor microenvironment. In the present study, we highlighted specific Treg markers and its factors in HNSCC solid tumors and peripheral blood of cancer patients. By histopathology and immunofluorescence staining, we observed differential expression of CD4, CD25, Foxp3, Helios and Neuropilin-1. Further, we analyzed the expression of Foxp3, Helios, Neuropilin-1 and GARP by qPCR and flow cytometry in whole blood and found to be elevated in HNSCC patients in comparison with healthy donors. Additionally, IFN-γ, TGF-β, IL-6, IL-2, IL-10 and TNF-α expressions were also found to be relatively increased in the head and neck cancer patients when compared with healthy donors. Our findings emphasize that Tregs may be involved in promoting tumor progression. Helios and Neuropilin-1 could be potent markers in identifying subsets of Tregs. Association of soluble factors could sculpture the activity of Tregs. With further research, Treg markers and its associated soluble factors could be employed to block Tregs trafficking to the tumor, thus enlightening a potential strategy for targeting human cancers.
Collapse
Affiliation(s)
- A A Mohamed Adil
- School of Life Sciences, B S Abdur Rahman Crescent Institute of Science and Technology, GST Road, Vandalur, Chennai, Tamil Nadu 600048 India
| | - Anil Kumar Bommanabonia
- School of Life Sciences, B S Abdur Rahman Crescent Institute of Science and Technology, GST Road, Vandalur, Chennai, Tamil Nadu 600048 India
| | - Anandraj Vaithy
- School of Life Sciences, B S Abdur Rahman Crescent Institute of Science and Technology, GST Road, Vandalur, Chennai, Tamil Nadu 600048 India
- Diagnostic Research Laboratory, Gorimedu, Puducherry 605001 India
| | - Sateesh Kumar
- 3Departmentof Oral Pathology and Microbiology, Indira Gandhi Institute of Dental Sciences, Pillayarkuppam, Puducherry 607402 India
| | - Mohammad Waseem
- 4School of Medicine, University of Alabama, Birmingham, 35205 USA
| | - Shazia Jamal
- School of Life Sciences, B S Abdur Rahman Crescent Institute of Science and Technology, GST Road, Vandalur, Chennai, Tamil Nadu 600048 India
| | - Neesar Ahmed
- School of Life Sciences, B S Abdur Rahman Crescent Institute of Science and Technology, GST Road, Vandalur, Chennai, Tamil Nadu 600048 India
| |
Collapse
|
14
|
Huang H, Deng Z. Adoptive transfer of regulatory T cells stimulated by Allogeneic Hepatic Stellate Cells mitigates liver injury in mice with concanavalin A-induced autoimmune hepatitis. Biochem Biophys Res Commun 2019; 512:14-21. [PMID: 30853178 DOI: 10.1016/j.bbrc.2019.02.147] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 02/27/2019] [Indexed: 02/07/2023]
Abstract
Regulatory T cell (Treg)-based therapy can effectively control autoimmune hepatitis (AIH). Hepatic stellate cells (HSC) can selectively stimulate allogeneic Treg proliferation following liver transplantation. This study tested the therapeutic effect and potential mechanisms underlying the action of HSC-stimulated Tregs on AIH in a mouse model of Concanavalin A (ConA)-induced AIH. HSC were isolated from BALB/c mice and characterized. Splenic CD4+CD25+ Tregs were isolated from C57BL/6 mice by immunomagnetic beads. The cells were co-cultured with primary (HSC-0), the second generation of HSC (HSC-2) for 72 h. The proliferation of Tregs was determined by flow cytometry. Similarly, the Tregs were co-cultured with HSC in transwell plates to determine the potential cell-cell contact dependent. The CD4+CD25- effector T cells (CFSE-Teffs) were co-cultured with Teff or Tregs in the presence or absence of HSC to determine the suppressive capacity of Tregs. The effects of Tregs or HSC-stimulated Tregs on AIH severity and the frequency of splenic Tregs and Th17 cells were examined in mice. Co-culture with HSC-2 significantly promoted Treg proliferation in a dose- and cell-cell contact-dependent manner, and allogeneic HSC enhanced the suppressive activity of Tregs to inhibit the proliferation of Teff in vitro. Adoptive transfer of Tregs, particularly of HSC-stimulated Tregs, significantly reduced liver injury, inflammation and Ishak modified histology activity index in AIH mice, which were associated with improving the balance of Treg and Th17 cell responses. Our data indicated that mature HSC stimulated allogeneic Treg proliferation in a dose and cell-cell contact-dependent manner, and HSC enhanced the suppressive activity of Tregs to inhibit the proliferation of Teff. Adoptive transfer of HSC-stimulated Tregs significantly reduced liver injury in AIH mice by modulating the balance of Treg and Th17 cell responses.
Collapse
Affiliation(s)
- Huifang Huang
- Shanxi Medical University, Taiyuan, China; Department of Gastroenterology, The First Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhihua Deng
- Department of Gastroenterology, The Second Hospital of Shanxi Medical University, Taiyuan, China.
| |
Collapse
|
15
|
Park SM, Cho H, Thornton AM, Barlowe TS, Chou T, Chhangawala S, Fairchild L, Taggart J, Chow A, Schurer A, Gruet A, Witkin MD, Kim JH, Shevach EM, Krivtsov A, Armstrong SA, Leslie C, Kharas MG. IKZF2 Drives Leukemia Stem Cell Self-Renewal and Inhibits Myeloid Differentiation. Cell Stem Cell 2019; 24:153-165.e7. [PMID: 30472158 PMCID: PMC6602096 DOI: 10.1016/j.stem.2018.10.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 08/06/2018] [Accepted: 10/10/2018] [Indexed: 01/08/2023]
Abstract
Leukemias exhibit a dysregulated developmental program mediated through both genetic and epigenetic mechanisms. Although IKZF2 is expressed in hematopoietic stem cells (HSCs), we found that it is dispensable for mouse and human HSC function. In contrast to its role as a tumor suppressor in hypodiploid B-acute lymphoblastic leukemia, we found that IKZF2 is required for myeloid leukemia. IKZF2 is highly expressed in leukemic stem cells (LSCs), and its deficiency results in defective LSC function. IKZF2 depletion in acute myeloid leukemia (AML) cells reduced colony formation, increased differentiation and apoptosis, and delayed leukemogenesis. Gene expression, chromatin accessibility, and direct IKZF2 binding in MLL-AF9 LSCs demonstrate that IKZF2 regulates a HOXA9 self-renewal gene expression program and inhibits a C/EBP-driven differentiation program. Ectopic HOXA9 expression and CEBPE depletion rescued the effects of IKZF2 depletion. Thus, our study shows that IKZF2 regulates the AML LSC program and provides a rationale to therapeutically target IKZF2 in myeloid leukemia.
Collapse
MESH Headings
- Animals
- Cell Differentiation
- Cell Self Renewal
- Chromatin/genetics
- Chromatin/metabolism
- DNA-Binding Proteins/physiology
- Female
- Gene Expression Regulation, Leukemic
- Hematopoiesis
- Leukemia, Experimental/genetics
- Leukemia, Experimental/metabolism
- Leukemia, Experimental/pathology
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Transcription Factors/physiology
Collapse
Affiliation(s)
- Sun-Mi Park
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hyunwoo Cho
- Computational Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Angela M Thornton
- Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Trevor S Barlowe
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timothy Chou
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sagar Chhangawala
- Computational Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lauren Fairchild
- Computational Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - James Taggart
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arthur Chow
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexandria Schurer
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Antoine Gruet
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matthew D Witkin
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jun Hyun Kim
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ethan M Shevach
- Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Andrei Krivtsov
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Scott A Armstrong
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Christina Leslie
- Computational Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael G Kharas
- Molecular Pharmacology Program and Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| |
Collapse
|
16
|
Montes Diaz G, Hupperts R, Fraussen J, Somers V. Dimethyl fumarate treatment in multiple sclerosis: Recent advances in clinical and immunological studies. Autoimmun Rev 2018; 17:1240-1250. [DOI: 10.1016/j.autrev.2018.07.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/11/2018] [Indexed: 12/30/2022]
|
17
|
SATB family chromatin organizers as master regulators of tumor progression. Oncogene 2018; 38:1989-2004. [PMID: 30413763 DOI: 10.1038/s41388-018-0541-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/30/2018] [Accepted: 09/02/2018] [Indexed: 02/07/2023]
Abstract
SATB (Special AT-rich binding protein) family proteins have emerged as key regulators that integrate higher-order chromatin organization with the regulation of gene expression. Studies over the past decade have elucidated the specific roles of SATB1 and SATB2, two closely related members of this family, in cancer progression. SATB family chromatin organizers play diverse and important roles in regulating the dynamic equilibrium of apoptosis, cell invasion, metastasis, proliferation, angiogenesis, and immune modulation. This review highlights cellular and molecular events governed by SATB1 influencing the structural organization of chromatin and interacting with several co-activators and co-repressors of transcription towards tumor progression. SATB1 expression across tumor cell types generates cellular and molecular heterogeneity culminating in tumor relapse and metastasis. SATB1 exhibits dynamic expression within intratumoral cell types regulated by the tumor microenvironment, which culminates towards tumor progression. Recent studies suggested that cell-specific expression of SATB1 across tumor recruited dendritic cells (DC), cytotoxic T lymphocytes (CTL), T regulatory cells (Tregs) and tumor epithelial cells along with tumor microenvironment act as primary determinants of tumor progression and tumor inflammation. In contrast, SATB2 is differentially expressed in an array of cancer types and is involved in tumorigenesis. Survival analysis for patients across an array of cancer types correlated with expression of SATB family chromatin organizers suggested tissue-specific expression of SATB1 and SATB2 contributing to disease prognosis. In this context, it is pertinent to understand molecular players, cellular pathways, genetic and epigenetic mechanisms governed by cell types within tumors regulated by SATB proteins. We propose that patient survival analysis based on the expression profile of SATB chromatin organizers would facilitate their unequivocal establishment as prognostic markers and therapeutic targets for cancer therapy.
Collapse
|
18
|
Briere D, Sudhakar N, Woods DM, Hallin J, Engstrom LD, Aranda R, Chiang H, Sodré AL, Olson P, Weber JS, Christensen JG. The class I/IV HDAC inhibitor mocetinostat increases tumor antigen presentation, decreases immune suppressive cell types and augments checkpoint inhibitor therapy. Cancer Immunol Immunother 2018; 67:381-392. [PMID: 29124315 PMCID: PMC11028326 DOI: 10.1007/s00262-017-2091-y] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 11/07/2017] [Indexed: 02/07/2023]
Abstract
Checkpoint inhibitor therapy has led to major treatment advances for several cancers including non-small cell lung cancer (NSCLC). Despite this, a significant percentage of patients do not respond or develop resistance. Potential mechanisms of resistance include lack of expression of programmed death ligand 1 (PD-L1), decreased capacity to present tumor antigens, and the presence of an immunosuppressive tumor microenvironment. Mocetinostat is a spectrum-selective inhibitor of class I/IV histone deacetylases (HDACs), a family of proteins implicated in epigenetic silencing of immune regulatory genes in tumor and immune cells. Mocetinostat upregulated PD-L1 and antigen presentation genes including class I and II human leukocyte antigen (HLA) family members in a panel of NSCLC cell lines in vitro. Mocetinostat target gene promoters were occupied by a class I HDAC and exhibited increased active histone marks after mocetinostat treatment. Mocetinostat synergized with interferon γ (IFN-γ) in regulating class II transactivator (CIITA), a master regulator of class II HLA gene expression. In a syngeneic tumor model, mocetinostat decreased intratumoral T-regulatory cells (Tregs) and potentially myeloid-derived suppressor cell (MDSC) populations and increased intratumoral CD8+ populations. In ex vivo assays, patient-derived, mocetinostat-treated Tregs also showed significant down regulation of FOXP3 and HELIOS. The combination of mocetinostat and a murine PD-L1 antibody antagonist demonstrated increased anti-tumor activity compared to either therapy alone in two syngeneic tumor models. Together, these data provide evidence that mocetinostat modulates immune-related genes in tumor cells as well as immune cell types in the tumor microenvironment and enhances checkpoint inhibitor therapy.
Collapse
Affiliation(s)
- David Briere
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | - Niranjan Sudhakar
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | - David M Woods
- NYU Langone Medical Center, New York, NY, 10016, USA
| | - Jill Hallin
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | - Lars D Engstrom
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | - Ruth Aranda
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | - Harrah Chiang
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | | | - Peter Olson
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA
| | | | - James G Christensen
- Mirati Therapeutics, Inc., 9393 Towne Center Dr, Suite 200, San Diego, CA, 92121, USA.
| |
Collapse
|
19
|
Sadlon T, Brown CY, Bandara V, Hope CM, Schjenken JE, Pederson SM, Breen J, Forrest A, Beyer M, Robertson S, Barry SC. Unravelling the molecular basis for regulatory T-cell plasticity and loss of function in disease. Clin Transl Immunology 2018; 7:e1011. [PMID: 29497530 PMCID: PMC5827651 DOI: 10.1002/cti2.1011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 12/14/2022] Open
Abstract
Regulatory T cells (Treg) are critical for preventing autoimmunity and curtailing responses of conventional effector T cells (Tconv). The reprogramming of T‐cell fate and function to generate Treg requires switching on and off of key gene regulatory networks, which may be initiated by a subtle shift in expression levels of specific genes. This can be achieved by intermediary regulatory processes that include microRNA and long noncoding RNA‐based regulation of gene expression. There are well‐documented microRNA profiles in Treg and Tconv, and these can operate to either reinforce or reduce expression of a specific set of target genes, including FOXP3 itself. This type of feedforward/feedback regulatory loop is normally stable in the steady state, but can alter in response to local cues or genetic risk. This may go some way to explaining T‐cell plasticity. In addition, in chronic inflammation or autoimmunity, altered Treg/Tconv function may be influenced by changes in enhancer–promoter interactions, which are highly cell type‐specific. These interactions are impacted by genetic risk based on genome‐wide association studies and may cause subtle alterations to the gene regulatory networks controlled by or controlling FOXP3 and its target genes. Recent insights into the 3D organisation of chromatin and the mapping of noncoding regulatory regions to the genes they control are shedding new light on the direct impact of genetic risk on T‐cell function and susceptibility to inflammatory and autoimmune conditions.
Collapse
Affiliation(s)
- Timothy Sadlon
- Women's and Children's Health Network North Adelaide SA Australia.,Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| | - Cheryl Y Brown
- Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| | - Veronika Bandara
- Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| | | | - John E Schjenken
- Reproductive Immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| | - Stephen M Pederson
- Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia.,University of Adelaide Bioinformatics Hub University of Adelaide Adelaide SA Australia
| | - James Breen
- Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia.,University of Adelaide Bioinformatics Hub University of Adelaide Adelaide SA Australia
| | - Alistair Forrest
- Harry Perkins Institute of Medical Research University of Western Australia Perth, WA Australia
| | - Marc Beyer
- Deutsches Zentrum fur Neurodegenerative Erkrankungen Bonn Germany
| | - Sarah Robertson
- Reproductive Immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| | - Simon C Barry
- Molecular immunology Robinson Research Institute University of Adelaide Adelaide SA Australia
| |
Collapse
|
20
|
Li X, Li D, Huang X, Zhou P, Shi Q, Zhang B, Ju X. Helios expression in regulatory T cells promotes immunosuppression, angiogenesis and the growth of leukemia cells in pediatric acute lymphoblastic leukemia. Leuk Res 2018; 67:60-66. [PMID: 29455107 DOI: 10.1016/j.leukres.2018.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 01/23/2018] [Accepted: 02/12/2018] [Indexed: 01/09/2023]
Abstract
Regulatory T cells (Tregs) characterized by the transcription factor forkhead box P3 (FoxP3) are crucial for maintaining immune tolerance and preventing autoimmunity. However, FoxP3 does not function alone and Helios is considered a potential candidate for defining Treg subsets. In this study, we investigated the expression and function of Helios for identifying Tregs in childhood precursor B-cell acute lymphoblastic leukemia (pre-B ALL). Our results demonstrated that patients with pre-B ALL had a higher percentage of Helios+ FoxP3+ CD4+ Tregs. And there was a positive correlation between the expression of Helios and the suppressive function of Tregs, the risk gradation of ALL. Helios in combination with CD4 and FoxP3 may be an effective way to detect functional Tregs in pre-B ALL by promoting the secretion of transforming growth factor (TGF)-β1. Furthermore, Helios+ Tregs could regulate angiogenesis in the BM niche of pre-B ALL via the VEGFA/VEGFR2 pathway. We also found Helios+ Tregs decreased apoptosis rate of nalm-6 cells by up-regulating the expression of anti-apoptosis protein Bcl-2. In summary, these data strongly imply the physiological importance of Helios expression in Tregs, and suggest that the manipulation of Helios may serve as a novel strategy for cancer immunotherapy.
Collapse
Affiliation(s)
- Xue Li
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Dong Li
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Xiaoyang Huang
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Panpan Zhou
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Qing Shi
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Bing Zhang
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| | - Xiuli Ju
- Department of Pediatrics, Qilu Hospital, Shandong University, Ji'nan, Shandong 250012, China.
| |
Collapse
|
21
|
Trojan K, Unterrainer C, Weimer R, Bulut N, Morath C, Aly M, Zhu L, Opelz G, Daniel V. Helios expression and Foxp3 TSDR methylation of IFNy+ and IFNy- Treg from kidney transplant recipients with good long-term graft function. PLoS One 2017; 12:e0173773. [PMID: 28296931 PMCID: PMC5351987 DOI: 10.1371/journal.pone.0173773] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 02/27/2017] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND There is circumstantial evidence that IFNy+ Treg might have clinical relevance in transplantation. IFNy+ Treg express IFNy receptors and are induced by IFNy. In the present study we investigated in kidney transplant recipients with good long-term stable graft function the absolute cell counts of IFNy+ Treg subsets and whether their expression of Foxp3 is stable or transient. METHOD Helios expression determined by eight-color-fluorescence flow cytometry and methylation status of the Foxp3 Treg specific demethylation region (TSDR) served as indicators for stability of Foxp3 expression. Methylation status was investigated in enriched IFNy+ and IFNy- Treg preparations originating from peripheral blood using high resolution melt analysis. A total of 136 transplant recipients and 52 healthy controls were studied. RESULTS Proportions of IFNy+ Treg were similar in patients and healthy controls (0.05% and 0.04% of all CD4+ lymphocytes; p = n.s.). Patients also had similar absolute counts of IFNy producing Helios+ and Helios- Treg (p = n.s.). Most of the IFNy+ and IFNy- Treg in transplant recipients had a methylated Foxp3 TSDR, however, there was a sizeable proportion of IFNy+ and IFNy- Treg with demethylated Foxp3 TSDR. Male and female patients showed more frequently methylated IFNy+ and IFNy- Treg than male and female controls (all p<0.05). CONCLUSIONS Kidney transplant recipients with good long-term stable graft function have similar levels of IFNy+ Treg as healthy controls. IFNy+ and IFNy- Treg subsets in patients consist of cells with stable and cells with transient Foxp3 expression; however, patients showed more frequently methylated IFNy+ and IFNy- Treg than controls. The data show increased levels of Treg subsets with stable as well as transient Foxp3 expression in patients with stable allograft acceptance compared to healthy controls.
Collapse
Affiliation(s)
- Karina Trojan
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - Christian Unterrainer
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - Rolf Weimer
- Department of Internal Medicine, University of Giessen, Giessen, Germany
| | - Nuray Bulut
- Department of Internal Medicine, University of Giessen, Giessen, Germany
| | - Christian Morath
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Mostafa Aly
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
- Nephrology unit, Internal Medicine Department, Assiut University, Assiut, Egypt
| | - Li Zhu
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
- Department of Hematology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Gerhard Opelz
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - Volker Daniel
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
- * E-mail:
| |
Collapse
|
22
|
Huang B, Xiong F, Wang S, Lang X, Wang X, Zhou H. Effect of SATB1 silencing on the proliferation, invasion and apoptosis of TE-1 esophageal cancer cells. Oncol Lett 2017; 13:2915-2920. [PMID: 28521398 PMCID: PMC5431243 DOI: 10.3892/ol.2017.5854] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 11/03/2016] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the effect of special AT-rich sequence-binding protein-1 (SATB1)-targeted small interfering RNA (siRNA) on the proliferation, invasion and apoptosis of TE-1 human esophageal cancer cells. SATB1 has been correlated with the metastasis and poor prognosis of colon and breast cancer, but the role of SATB1 in esophageal cancer remains unknown. Therefore, the present study constructed and transfected SATB1-siRNA into TE-1 cells in order to knockdown the expression of the SATB1 gene. Western blot analysis, a cell counting kit, transwell chamber assays and flow cytometry were used to assess the effect of SATB1-siRNA on the proliferation, invasion and apoptosis of cells. The results demonstrated that the expression of the SATB1 gene was efficiently knocked down by SATB1-siRNA, and that SATB1-siRNA inhibited the proliferation, invasion and apoptosis of TE-1 cells. Therefore, it was concluded that the SATB1 gene is important in the pathogenesis of human esophageal cancer, and may present a novel therapeutic target for esophageal cancer.
Collapse
Affiliation(s)
- Bo Huang
- Department of Thoracic Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Fei Xiong
- Department of Thoracic Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Siwang Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Xianping Lang
- Department of Thoracic Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Xiaodong Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Hongli Zhou
- Department of Nephropathy, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning 121000, P.R. China
| |
Collapse
|
23
|
Trojan K, Zhu L, Aly M, Weimer R, Bulut N, Morath C, Opelz G, Daniel V. Association of peripheral NK cell counts with Helios + IFN-γ - T regs in patients with good long-term renal allograft function. Clin Exp Immunol 2017; 188:467-479. [PMID: 28194759 DOI: 10.1111/cei.12945] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2017] [Indexed: 12/16/2022] Open
Abstract
Little is known about a possible interaction of natural killer (NK) cells with regulatory T cells (Treg ) in long-term stable kidney transplant recipients. Absolute counts of lymphocyte and Treg subsets were studied in whole blood samples of 136 long-term stable renal transplant recipients and 52 healthy controls using eight-colour fluorescence flow cytometry. Patients were 1946 ± 2201 days (153-10 268 days) post-transplant and showed a serum creatinine of 1·7 ± 0·7 mg/dl. Renal transplant recipients investigated > 1·5 years post-transplant showed higher total NK cell counts than recipients studied < 1·5 years after transplantation (P = 0·006). High NK cells were associated with high glomerular filtration rate (P = 0·002) and low serum creatinine (P = 0·005). Interestingly, high NK cells were associated with high CD4+ CD25+ CD127- forkhead box protein 3 (FoxP3+ ) Treg that co-express the phenotype Helios+ interferon (IFN)-γ- and appear to have stable FoxP3 expression and originate from the thymus. Furthermore, high total NK cells were associated with Treg that co-express the phenotypes interleukin (IL)-10- transforming growth factor (TGF)-β+ (P = 0·013), CD183+ CD62L- (P = 0·003), CD183+ CD62+ (P = 0·001), CD183- CD62L+ (P = 0·002), CD252- CD152+ (P < 0·001), CD28+ human leucocyte antigen D-related (HLA-DR- ) (P = 0·002), CD28+ HLA-DR+ (P < 0·001), CD95+ CD178- (P < 0·001) and CD279- CD152+ (P < 0·001), suggesting that these activated Treg home in peripheral tissues and suppress effector cells via TGF-β and cytotoxic T lymphocyte-associated protein 4 (CTLA-4). The higher numbers of NK and Treg cell counts in patients with long-term good allograft function and the statistical association of these two lymphocyte subsets with each other suggest a direct or indirect (via DC) interaction of these cell subpopulations that contributes to good long-term allograft acceptance. Moreover, we speculate that regulatory NK cells are formed late post-transplant that are able to inhibit graft-reactive effector cells.
Collapse
Affiliation(s)
- K Trojan
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - L Zhu
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany.,Department of Hematology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - M Aly
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany.,Nephrology Unit, Internal Medicine Department, Assiut University, Egypt
| | - R Weimer
- Department of Internal Medicine, University of Giessen, Giessen, Germany
| | - N Bulut
- Department of Internal Medicine, University of Giessen, Giessen, Germany
| | - C Morath
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - G Opelz
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - V Daniel
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Heidelberg, Germany
| |
Collapse
|
24
|
Trojan K, Unterrainer C, Aly M, Zhu L, Weimer R, Bulut N, Morath C, Opelz G, Daniel V. IFNy+ and IFNy- Treg subsets with stable and unstable Foxp3 expression in kidney transplant recipients with good long-term graft function. Transpl Immunol 2016; 39:S0966-3274(16)30124-1. [PMID: 27989714 DOI: 10.1016/j.trim.2016.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 10/25/2016] [Accepted: 10/27/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND Treg are a heterogenous cell population. In the present study we attempted to identify Treg subsets that might contribute to stable and good long-term graft function. METHOD Lymphocyte and Treg subsets were studied in 136 kidney transplant recipients with good long-term graft function and in 52 healthy control individuals using eight-color-fluorescence flow cytometry. Foxp3 TSDR methylation status was investigated in enriched IFNy+ and IFNy- Treg preparations using high resolution melt analysis. RESULTS Compared with healthy controls, patients showed strong associations of IFNy secreting Helios+ and Helios- Treg with Treg that co-expressed perforin and/or CTLA4 (CD152; p<0.01). Moreover they showed associations of IFNy-Helios+ Treg with Treg that produced TGFβ and/or perforin and of IFNy-Helios- Treg with TGFβ production (all p<0.01). Only in patients, but not in healthy controls, were IFNy- Helios+ and Helios- Treg associated with higher CD45+, CD3+, (CD4+), CD19+ lymphocyte counts (p<0.001). In addition IFNy-Helios+ Treg were associated with CD16+56+ lymphocytes (p<0.001). Enriched IFNy- Treg from female but not male patients showed an association of Foxp3 methylation with higher total Treg and higher Helios+IFNy-, CXCR3+Lselectin+ (CD183+CD62L+), CXCR3-Lselectin+ and CD28+HLADR+ Treg subsets (p<0.01). Enriched IFNy+ Treg from male patients showed an association of demethylated Foxp3 with total Treg and IL10-TFGβ+ Treg counts, and in enriched IFNy- Treg an association of methylated Foxp3 with APO1/FasR+FasL+ (CD95+CD178+) Treg (p<0.01). CONCLUSIONS Kidney recipients with good long-term graft function possess IFNy+ and IFNy- Treg with stable and unstable Foxp3 expression in the blood. They co-express CD28, HLADR, CTLA4, CXCR3, Lselectin, TGFβ, perforin and FasL and might contribute to the establishment and maintenance of good long-term graft function.
Collapse
Affiliation(s)
- Karina Trojan
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| | - Christian Unterrainer
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| | - Mostafa Aly
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| | - Li Zhu
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| | - Rolf Weimer
- Department of Internal Medicine, University of Giessen, Klinikstrasse 33, D-35385 Giessen, Germany.
| | - Nuray Bulut
- Department of Internal Medicine, University of Giessen, Klinikstrasse 33, D-35385 Giessen, Germany.
| | - Christian Morath
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany.
| | - Gerhard Opelz
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| | - Volker Daniel
- Transplantation-Immunology, Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120 Heidelberg, Germany.
| |
Collapse
|
25
|
Wang K, Gu J, Ni X, Ding Z, Wang Q, Zhou H, Zheng S, Li B, Lu L. CD25 signaling regulates the function and stability of peripheral Foxp3+ regulatory T cells derived from the spleen and lymph nodes of mice. Mol Immunol 2016; 76:35-40. [PMID: 27344615 DOI: 10.1016/j.molimm.2016.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/19/2016] [Accepted: 06/10/2016] [Indexed: 02/06/2023]
Abstract
Regulatory T cells (Tregs) play a critical role in sustaining immune tolerance and maintaining immune balance to alloantigen after transplatation. However, the functions of peripheral Tregs in different organs have not been fully characterized. Here, we showed that spleen-derived Tregs exhibited higher expression of Foxp3, greater suppressive capacity, and lower levels of IL-17A secretion than lymph node-derived Tregs in vitro in the presence or absence of inflammatory cytokines, such as IL-6. We found a higher percentage of CD25(bright) Tregs among spleen-derived Tregs than among lymph node-derived Tregs. Additionally, in vivo experiments demonstrated that adoptive transfer of spleen-derived Tregs, but not lymph node-derived Tregs, alleviated ischemia-reperfusion injury. These results reveal novel functions of Tregs derived from peripheral organs. In particular, spleen-derived Tregs, primarily consisting of CD25(bright) cells, may provide a more significant contribution to the suppression of immune-mediated autoimmune and inflammatory disease.
Collapse
Affiliation(s)
- Kunpeng Wang
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Jian Gu
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Xuhao Ni
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Zheng Ding
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Qi Wang
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Haoming Zhou
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - SongGuo Zheng
- Division of Rheumatology, Penn State Hershey College of Medicine, Hershey, PA 17033, USA
| | - Bin Li
- Key Laboratory of Molecular Virology & Immunology, CAS Center for Excellence in Molecular Cell Science, Unit of Molecular Immunology, Institute Pasteur of Shanghai, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Ling Lu
- Translational Medicine Research Center, Affiliated Jiangning Hospital, and Liver Transplantation Center, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
| |
Collapse
|
26
|
Intragraft transcriptional profiling of renal transplant patients with tubular dysfunction reveals mechanisms underlying graft injury and recovery. Hum Genomics 2016; 10:2. [PMID: 26742487 PMCID: PMC4705764 DOI: 10.1186/s40246-015-0059-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 12/30/2015] [Indexed: 12/13/2022] Open
Abstract
Background Proximal tubular dysfunction (PTD) is associated with a decreased long-term graft survival in renal transplant patients and can be detected by the elevation of urinary tubular proteins. This study investigated transcriptional changes in biopsies from renal transplant patients with PTD to disclose molecular mechanisms underlying graft injury and functional recovery. Methods Thirty-three renal transplant patients with high urinary levels of retinol-binding protein, a biomarker of PTD, were enrolled in the study. The initial immunosuppressive scheme included azathioprine, cyclosporine, and steroids. After randomization, 18 patients (group 2) had their treatment modified by reducing cyclosporine dosage and substituting azathioprine for mycophenolate mofetil, while the other 15 patients (group 1) remained under the initial scheme. Patients were biopsied at enrollment and after 12 months of follow-up, and paired comparisons were performed between their intragraft gene expression profiles. The differential transcriptome profiles were analyzed by constructing gene co-expression networks and identifying enriched functions and central nodes in each network. Results Only the alternative immunosuppressive scheme used in group 2 ameliorated renal function and tubular proteinuria after 12 months of follow-up. Intragraft molecular changes observed in group 2 were linked to autophagy, extracellular matrix, and adaptive immunity. Conversely, gene expression changes in group 1 were related to fibrosis, endocytosis, ubiquitination, and endoplasmic reticulum stress. Conclusion These results suggest that molecular networks associated with the control of endocytosis, autophagy, protein overload, fibrosis, and adaptive immunity may be involved in improvement of graft function. Electronic supplementary material The online version of this article (doi:10.1186/s40246-015-0059-6) contains supplementary material, which is available to authorized users.
Collapse
|
27
|
Park SM, Gönen M, Vu L, Minuesa G, Tivnan P, Barlowe TS, Taggart J, Lu Y, Deering RP, Hacohen N, Figueroa ME, Paietta E, Fernandez HF, Tallman MS, Melnick A, Levine R, Leslie C, Lengner CJ, Kharas MG. Musashi2 sustains the mixed-lineage leukemia-driven stem cell regulatory program. J Clin Invest 2015; 125:1286-98. [PMID: 25664853 DOI: 10.1172/jci78440] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 01/05/2015] [Indexed: 01/15/2023] Open
Abstract
Leukemia stem cells (LSCs) are found in most aggressive myeloid diseases and contribute to therapeutic resistance. Leukemia cells exhibit a dysregulated developmental program as the result of genetic and epigenetic alterations. Overexpression of the RNA-binding protein Musashi2 (MSI2) has been previously shown to predict poor survival in leukemia. Here, we demonstrated that conditional deletion of Msi2 in the hematopoietic compartment results in delayed leukemogenesis, reduced disease burden, and a loss of LSC function in a murine leukemia model. Gene expression profiling of these Msi2-deficient animals revealed a loss of the hematopoietic/leukemic stem cell self-renewal program and an increase in the differentiation program. In acute myeloid leukemia patients, the presence of a gene signature that was similar to that observed in Msi2-deficent murine LSCs correlated with improved survival. We determined that MSI2 directly maintains the mixed-lineage leukemia (MLL) self-renewal program by interacting with and retaining efficient translation of Hoxa9, Myc, and Ikzf2 mRNAs. Moreover, depletion of MLL target Ikzf2 in LSCs reduced colony formation, decreased proliferation, and increased apoptosis. Our data provide evidence that MSI2 controls efficient translation of the oncogenic LSC self-renewal program and suggest MSI2 as a potential therapeutic target for myeloid leukemia.
Collapse
|
28
|
T-cell regulation during viral and nonviral asthma exacerbations. J Allergy Clin Immunol 2015; 136:194-197.e9. [PMID: 25605274 DOI: 10.1016/j.jaci.2014.12.1866] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/03/2014] [Accepted: 12/05/2014] [Indexed: 12/24/2022]
|
29
|
Ateba-Ngoa U, Mombo-Ngoma G, Zettlmeissl E, van der Vlugt LEPM, de Jong S, Matsiegui PB, Ramharter M, Kremsner PG, Yazdanbakhsh M, Adegnika AA. CD4+CD25hiFOXP3+ cells in cord blood of neonates born from filaria infected mother are negatively associated with CD4+Tbet+ and CD4+RORγt+ T cells. PLoS One 2014; 9:e114630. [PMID: 25531674 PMCID: PMC4273973 DOI: 10.1371/journal.pone.0114630] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 11/11/2014] [Indexed: 11/18/2022] Open
Abstract
Background Children who have been exposed in utero to maternal filarial infection are immunologically less responsive to filarial antigens, have less pathology, and are more susceptible to acquire infection than offspring of uninfected mothers. Moreover children from filaria infected mothers have been shown to be less responsive to vaccination as a consequence of an impairment of their immune response. However, it is not well known how in utero exposure to parasite antigens affects cellular immune responses. Methodology Here, 30 pregnant women were examined for the presence of microfilaria of Loa loa and Mansonella perstans in peripheral blood. At delivery, cord blood mononuclear cells (CBMC) were obtained and the CD4+T cells were phenotyped by expression of the transcription factors Tbet, RORγt, and FOXP3. Results No significant difference was observed between newborns from infected versus uninfected mothers in the frequencies of total CD4+T cells and CD4+T cells subsets including CD4+Tbet+, CD4+RORγt+ T and CD4+CD25hiFOXP3+ T cells. However, there was a negative association between CD4+CD25hiFOXP3+T cells and CD4+Tbet+ as well as CD4+RORγt+ T cells in the infected group only (B = −0.242, P = 0.002; B = −0.178, P = 0.013 respectively). Conclusion Our results suggest that filarial infection during pregnancy leads to an expansion of functionally active regulatory T cells that keep TH1 and TH17 in check.
Collapse
Affiliation(s)
- Ulysse Ateba-Ngoa
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2 2333 ZA Leiden, The Netherlands
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
| | - Ghyslain Mombo-Ngoma
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2 2333 ZA Leiden, The Netherlands
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
- Département de Parasitologie-Mycologie, Université des Sciences de la Santé, BP 4009, Libreville, Gabon
| | - Eva Zettlmeissl
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
| | | | - Sanne de Jong
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2 2333 ZA Leiden, The Netherlands
| | - Pierre-Blaise Matsiegui
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Centre de Recherches Médicales de la Ngounié, Fougamou, Gabon
| | - Michael Ramharter
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
- Department of Medicine I, Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna, Währinger Gürtel 18–20, 1090 Vienna, Austria
| | - Peter G. Kremsner
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
| | - Maria Yazdanbakhsh
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2 2333 ZA Leiden, The Netherlands
| | - Ayola Akim Adegnika
- Centre de Recherches Médicales de Lambaréné, BP 118, Lambaréné, Gabon
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2 2333 ZA Leiden, The Netherlands
- Institut für Tropenmedizin, Universität Tübingen, Wilhelmstraβe 27 D-72074 Tübingen, Germany
- * E-mail:
| |
Collapse
|
30
|
Trzonkowski P, Dukat-Mazurek A, Bieniaszewska M, Marek-Trzonkowska N, Dobyszuk A, Juścińska J, Dutka M, Myśliwska J, Hellmann A. Treatment of graft-versus-host disease with naturally occurring T regulatory cells. BioDrugs 2014; 27:605-14. [PMID: 23813436 PMCID: PMC3832760 DOI: 10.1007/s40259-013-0050-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A significant body of evidence suggests that treatment with naturally occurring CD4+CD25+ T regulatory cells (Tregs) is an appropriate therapy for graft-versus-host disease (GvHD). GvHD is a major complication of bone marrow transplantation in which the transplanted immune system recognizes recipient tissues as a non-self and destroys them. In many cases, this condition significantly deteriorates the quality of life of the affected patients. It is also one of the most important causes of death after bone marrow transplantation. Tregs constitute a population responsible for dominant tolerance to self-tissues in the immune system. These cells prevent autoimmune and allergic reactions and decrease the risk of rejection of allotransplants. For these reasons, Tregs are considered as a cellular drug in GvHD. The results of the first clinical trials with these cells are already available. In this review we present important experimental facts which led to the clinical use of Tregs. We then critically evaluate specific requirements for Treg therapy in GvHD and therapies with Tregs currently under clinical investigation, including our experience and future perspectives on this kind of cellular treatment.
Collapse
Affiliation(s)
- Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology, Medical University of Gdańsk, Ul. Dębinki 1, 80-211, Gdańsk, Poland,
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Regulatory T cells in allogeneic stem cell transplantation. Clin Dev Immunol 2013; 2013:608951. [PMID: 23737813 PMCID: PMC3662184 DOI: 10.1155/2013/608951] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 04/15/2013] [Indexed: 01/02/2023]
Abstract
Growing evidence suggests that cellular adoptive immunotherapy is becoming an attractive though challenging approach in regulating tumor immunity and alloresponses in clinical transplantation. Naturally arising CD4+CD25+Foxp3+ regulatory T cells (Treg) have emerged as a key component in this regard. Over the last decade, a large body of evidence from preclinical models has demonstrated their crucial role in auto- and tumor immunity and has opened the door to their “first-in-man” clinical application. Initial studies in clinical allogeneic stem cell transplantation are very encouraging and may pave the way for other applications. Further improvements in Treg ex vivo or in vivo expansion technologies will simplify their global clinical application. In this review, we discuss the current knowledge of Treg biology and their potential for cell-based immunotherapy in allogeneic stem cell transplantation.
Collapse
|