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Li J, Wang F, Cui Y, Song L, Yu Y, Chen X. Identification of Diagnostic Biomarkers of Rape Pollen Allergy Based on MRNA Sequencing. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:6153577. [PMID: 36212976 PMCID: PMC9534618 DOI: 10.1155/2022/6153577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022]
Abstract
In this study, 383 differentially expressed genes (DEGs) between the allergic group and the nonallergic group were excavated. Humoral immune response, chemokine-related biological processes, granulocyte-related biological processes, IL-17 signaling pathway, and TNF signaling pathway were found connected with DEGs. The allergic group had significantly higher enrich scores of T cells, T helper cells, TFH, and Th17 cells than the nonallergic group. We acquired 26 rape pollen allergy-associated genes by taking the intersection of key module genes from WGCNA and the DEGs. The functional enrichment results show that rape pollen allergy-associated genes are relevant to processes and pathways like regulation of inflammatory response, transcriptional regulation, lymphocyte differentiation, IL-17 signaling pathway, and MAPK signaling pathway. Then, three characteristic genes were defined by crossing the genes derived from LASSO and SVM-RFE algorithms, including MYADM, PMAIP1, and MLF1. The AUC values of these genes manifested that the three genes had a mighty discrimination power in discriminating allergic samples from nonallergic samples. In conclusion, this study revealed three characteristic genes (MYADM, PMAIP1, and MLF1) in rape pollen allergy, suggesting that they may be potential biomarkers in rape pollen allergy diagnosis and treatment.
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Affiliation(s)
- Jianhua Li
- Department of Otolaryngology, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, China
| | - Fang Wang
- Department of Otolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yunhua Cui
- Department of Otolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Song
- Department of Otolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yongmei Yu
- Department of Otolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xia Chen
- Department of Pediatrics, Guandu District Maternal and Child Health Service Center, Kunming, China
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2
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Han M, Ma J, Ouyang S, Wang Y, Zheng T, Lu P, Zheng Z, Zhao W, Li H, Wu Y, Zhang B, Hu R, Otsu K, Liu X, Wan Y, Li H, Huang G. The kinase p38α functions in dendritic cells to regulate Th2-cell differentiation and allergic inflammation. Cell Mol Immunol 2022; 19:805-819. [PMID: 35551270 PMCID: PMC9243149 DOI: 10.1038/s41423-022-00873-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 04/02/2022] [Accepted: 04/15/2022] [Indexed: 12/24/2022] Open
Abstract
Dendritic cells (DCs) play a critical role in controlling T helper 2 (Th2) cell-dependent diseases, but the signaling mechanism that triggers this function is not fully understood. We showed that p38α activity in DCs was decreased upon HDM stimulation and dynamically regulated by both extrinsic signals and Th2-instructive cytokines. p38α-specific deletion in cDC1s but not in cDC2s or macrophages promoted Th2 responses under HDM stimulation. Further study showed that p38α in cDC1s regulated Th2-cell differentiation by modulating the MK2−c-FOS−IL-12 axis. Importantly, crosstalk between p38α-dependent DCs and Th2 cells occurred during the sensitization phase, not the effector phase, and was conserved between mice and humans. Our results identify p38α signaling as a central pathway in DCs that integrates allergic and parasitic instructive signals with Th2-instructive cytokines from the microenvironment to regulate Th2-cell differentiation and function, and this finding may offer a novel strategy for the treatment of allergic diseases and parasitic infection.
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Affiliation(s)
- Miaomiao Han
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, 200031, Shanghai, China
| | - Jingyu Ma
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Suidong Ouyang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Yanyan Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Tingting Zheng
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Peishan Lu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Zihan Zheng
- Biomedical Analysis Center, Army Medical University, 400038, Chongqing, China
| | - Weiheng Zhao
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.,Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Hongjin Li
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.,Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 200437, Shanghai, China
| | - Yun Wu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Baohua Zhang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.,Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Ran Hu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.,Basic Department of Cancer Center, Shanghai Tenth People's Hospital of Tongji University, 200072, Shanghai, China
| | - Kinya Otsu
- Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan.,School of Cardiovascular Medicine and Sciences, King's College London, London, SE59NU, UK
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China
| | - Ying Wan
- Biomedical Analysis Center, Army Medical University, 400038, Chongqing, China.
| | - Huabin Li
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, 200031, Shanghai, China.
| | - Gonghua Huang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China. .,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, 523808, Dongguan, China.
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3
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Agrahari G, Sah SK, Bang CH, Kim YH, Kim TY. Superoxide Dismutase 3 Controls the Activation and Differentiation of CD4 +T Cells. Front Immunol 2021; 12:628117. [PMID: 33717151 PMCID: PMC7947887 DOI: 10.3389/fimmu.2021.628117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/21/2021] [Indexed: 12/11/2022] Open
Abstract
Superoxide dismutase 3 (SOD3), a well-known antioxidant has been shown to possess immunomodulatory properties through inhibition of T cell differentiation. However, the underlying inhibitory mechanism of SOD3 on T cell differentiation is not well understood. In this study, we investigated the effect of SOD3 on anti-CD3/CD28- or phorbol myristate acetate (PMA) and ionomycin (ION)-mediated activation of mouse naive CD4+ T cells. Our data showed that SOD3 suppressed the expression of activation-induced surface receptor proteins such as CD25, and CD69, and cytokines production. Similarly, SOD3 was found to reduce CD4+T cells proliferation and suppress the activation of downstream pathways such as ERK, p38, and NF-κB. Moreover, naïve CD4+T cells isolated from global SOD3 knock-out mice showed higher expression of CD25, CD69, and CD71, IL-2 production, proliferation, and downstream signals compared to wild-type CD4+T cells. Whereas, the use of DETCA, a known inhibitor of SOD3 activity, found to nullify the inhibitory effect of SOD3 on CD4+T cell activation of both SOD3 KO and wild-type mice. Furthermore, the expression of surface receptor proteins, IL-2 production, and downstream signals were also reduced in Th2 and Th17 differentiated cells upon SOD3 treatment. Overall, our data showed that SOD3 can attenuate CD4+T cell activation through modulation of the downstream signalings and restrict CD4+T cell differentiation. Therefore, SOD3 can be a promising therapeutic for T cell-mediated disorders.
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Affiliation(s)
- Gaurav Agrahari
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Shyam Kishor Sah
- Department of Reconstructive Sciences, Center for Regenerative Medicine and Skeletal Development, UConn Health, Farmington, CT, United States
| | - Chul Hwan Bang
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Yeong Ho Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Tae-Yoon Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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4
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Cicuéndez B, Ruiz-Garrido I, Mora A, Sabio G. Stress kinases in the development of liver steatosis and hepatocellular carcinoma. Mol Metab 2021; 50:101190. [PMID: 33588102 PMCID: PMC8324677 DOI: 10.1016/j.molmet.2021.101190] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/31/2020] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an important component of metabolic syndrome and one of the most prevalent liver diseases worldwide. This disorder is closely linked to hepatic insulin resistance, lipotoxicity, and inflammation. Although the mechanisms that cause steatosis and chronic liver injury in NAFLD remain unclear, a key component of this process is the activation of stress-activated kinases (SAPKs), including p38 and JNK in the liver and immune system. This review summarizes findings which indicate that the dysregulation of stress kinases plays a fundamental role in the development of steatosis and are important players in inducing liver fibrosis. To avoid the development of steatohepatitis and liver cancer, SAPK activity must be tightly regulated not only in the hepatocytes but also in other tissues, including cells of the immune system. Possible cellular mechanisms of SAPK actions are discussed. Hepatic JNK triggers steatosis and insulin resistance, decreasing lipid oxidation and ketogenesis in HFD-fed mice. Decreased liver expression of p38α/β in HFD increases lipogenesis. Hepatic p38γ/δ drive insulin resistance and inhibit autophagy, which may lead to steatosis. Macrophage p38α/β promote cytokine production and M1 polarization, leading to lipid accumulation in hepatocytes. Myeloid p38γ/δ contribute to cytokine production and neutrophil migration, protecting against steatosis, diabetes and NAFLD. JNK1 and p38γ induce HCC while p38α blocks it. However, deletion of hepatic JNK1/2 induces cholangiocarcinoma. SAPK are potential therapeutic target for metabolic disorders, steatohepatitis and liver cancer.
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Affiliation(s)
- Beatriz Cicuéndez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Irene Ruiz-Garrido
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Alfonso Mora
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain.
| | - Guadalupe Sabio
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain.
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5
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Evaluation of the therapeutic potential of the selective p38 MAPK inhibitor Skepinone-L and the dual p38/JNK 3 inhibitor LN 950 in experimental K/BxN serum transfer arthritis. Inflammopharmacology 2019; 27:1217-1227. [PMID: 31037574 DOI: 10.1007/s10787-019-00593-6] [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: 01/27/2019] [Accepted: 04/03/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Mitogen-activated protein kinase (MAPK) signaling plays an important role in inflammatory diseases such as rheumatoid arthritis (RA).The aim of our study was to elucidate the therapeutic potential of the highly selective p38 MAPK inhibitor Skepinone-L and the dual inhibitor LN 950 (p38 MAPK and JNK 3) in the K/BxN serum transfer model of RA. Additionally, we aimed to monitor MAPK treatment non-invasively in vivo using the hypoxia tracer [18F]fluoromisonidazole ([18F]FMISO) and positron emission tomography (PET). METHODS To induce experimental arthritis, we injected glucose-6-phosphate isomerase autoantibody-containing serum in BALB/c mice. MAPK inhibitor or Sham treatment was administered per os once daily. On days 3 and 6 after arthritis induction, we conducted PET imaging with [18F]FMISO. At the end of the experiment, ankles were harvested for histopathological analysis. RESULTS Skepinone-L and LN 950 were applicable to suppress the severity of experimental arthritis confirmed by reduced ankle swelling and histopathological analysis. Skepinone-L (3.18 ± 0.19 mm) and LN 950 (3.40 ± 0.13 mm) treatment yielded a significantly reduced ankle thickness compared to Sham-treated mice (3.62 ± 0.11 mm) on day 5 after autoantibody transfer, a time-point characterized by severe arthritis. Hypoxia imaging with [18F]FMISO revealed non-conclusive results and might not be an appropriate tool to monitor MAPK therapy in experimental RA. CONCLUSION Both the selective p38 MAPK inhibitor Skepinone-L and the dual (p38 MAPK and JNK 3) inhibitor LN 950 exhibited significant therapeutic effects during experimental arthritis. Thus, our study contributes to the ongoing discussion on the use of p38 MAPK as a potential target in RA.
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6
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Hu P, Nebreda AR, Hanenberg H, Kinnebrew GH, Ivan M, Yoder MC, Filippi MD, Broxmeyer HE, Kapur R. P38α/JNK signaling restrains erythropoiesis by suppressing Ezh2-mediated epigenetic silencing of Bim. Nat Commun 2018; 9:3518. [PMID: 30158520 PMCID: PMC6115418 DOI: 10.1038/s41467-018-05955-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 05/29/2018] [Indexed: 01/05/2023] Open
Abstract
While erythropoietin (EPO) constitutes the major treatment for anemia, a range of anemic disorders remain resistant to EPO treatment. The need for alternative therapeutic strategies requires the identification of mechanisms that physiologically restrain erythropoiesis. Here we show that P38α restrains erythropoiesis in mouse and human erythroblasts independently of EPO by integrating apoptotic signals during recovery from anemia. P38α deficiency promotes JNK activation through increased expression of Map3k4 via a negative feedback mechanism. JNK prevents Cdk1-mediated phosphorylation and subsequent degradation by Smurf2 of the epigenetic silencer Ezh2. Stabilized Ezh2 silences Bim expression and protects erythroblasts from apoptosis. Thus, we identify P38α/JNK signaling as a molecular brake modulating erythropoiesis through epigenetic silencing of Bim. We propose that inhibition of P38α, by enhancing erythropoiesis in an EPO-independent fashion, may provide an alternative strategy for the treatment of anemia. Erythropoietin (EPO) stimulates erythropoiesis and is commonly used to treat anemia. Here Hu et al. find that P38α/JNK signaling restrains erythropoiesis independently of EPO by regulating epigenetic silencing of the proapoptotic protein Bim, and thus identify putative targets for the treatment of anemic disorders resistant to EPO.
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Affiliation(s)
- Ping Hu
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, 46202, USA
| | - Angel R Nebreda
- Institute for Research in Biomedicine (IRB Barcelona). Barcelona Institute of Science and Technology, Barcelona, 08028, Spain
| | - Helmut Hanenberg
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, 45122, Essen, Germany
| | - Garrett H Kinnebrew
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, 46202, USA
| | - Mircea Ivan
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, 46202, USA
| | - Mervin C Yoder
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, 46202, USA
| | - Marie-Dominique Filippi
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Research Foundation, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
| | - Hal E Broxmeyer
- Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Reuben Kapur
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, 46202, USA.
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7
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Risco A, Martin-Serrano MA, Barber DF, Cuenda A. p38γ and p38δ Are Involved in T Lymphocyte Development. Front Immunol 2018; 9:65. [PMID: 29434594 PMCID: PMC5796910 DOI: 10.3389/fimmu.2018.00065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/10/2018] [Indexed: 01/27/2023] Open
Abstract
p38 mitogen-activated protein kinase (MAPK) signal transduction pathways are essential regulators of the immune response. Particularly, p38γ and p38δ regulate many immune cell functions such as cytokine production, migration, or T cell activation; however, their involvement in immune cell development is largely unknown. Here, we analysed the role of p38 MAPK isoforms p38γ and p38δ in T cell differentiation in the thymus and in lymph nodes, using mice deficient in p38γ, p38δ, or in both. We found that the T cell differentiation program in the thymus was affected at different stages in p38γ-, p38δ-, and p38γ/δ-deficient mice, and also peripheral T cell homaeostasis was compromised. Particularly, p38δ deletion affects different stages of early CD4−CD8− double-negative thymocyte development, whereas lack of p38γ favours thymocyte positive selection from CD4+CD8+ double-positive to CD4+ or CD8+ single-positive cells. Our results identify unreported functions for p38γ and p38δ in T cells.
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Affiliation(s)
- Ana Risco
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CSIC), Madrid, Spain
| | - Miguel A Martin-Serrano
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CSIC), Madrid, Spain
| | - Domingo F Barber
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CSIC), Madrid, Spain
| | - Ana Cuenda
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CSIC), Madrid, Spain
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8
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Wang P, Han W, Ma D. Virtual Sorting Has a Distinctive Advantage in Identification of Anticorrelated Genes and Further Negative Regulators of Immune Cell Subpopulations. THE JOURNAL OF IMMUNOLOGY 2017; 199:4155-4164. [PMID: 29093063 DOI: 10.4049/jimmunol.1700946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/10/2017] [Indexed: 12/20/2022]
Abstract
Immune cells are highly plastic in both gene expression and cell phenotype. We have established a method of gene expressional plasticity and virtual sorting to evaluate immune cell subpopulations and their characteristic genes in human CD4+ T cells. In this study, we continued to investigate the informatics mechanism on the effectiveness of virtual sorting. We found that virtual sorting had an overall positive correlation to the Pearson correlation in the identification of positively correlated genes. However, owing to nonlinear biological anticorrelation, virtual sorting showed a distinctive advantage for anticorrelated genes, suggesting an important role in the identification of negative regulators. In addition, based on virtual sorting results, we identified two basic gene sets among highly plastic genes, i.e., highly plastic cell cycle-associated molecules and highly plastic immune and defense response-associated molecules. Genes within each set tended to be positively connected, but genes between two sets were often anticorrelated. Further analysis revealed preferential transcription factor binding motifs existed between highly plastic cell cycle-associated molecules and highly plastic immune and defense response-associated molecules. Our results strongly suggested predetermined regulation, which was called an immune cell internal phenotype, should exist and could be mined by virtual sorting analysis. This provided efficient functional clues to study immune cell phenotypes and their regulation. Moreover, the current substantial virtual sorting results in both CD4+ T cells and B cells provide a useful resource for big-data-driven experimental studies and knowledge discoveries.
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Affiliation(s)
- Pingzhang Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; .,Peking University Center for Human Disease Genomics, Beijing 100191, China; and .,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.,Peking University Center for Human Disease Genomics, Beijing 100191, China; and.,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Dalong Ma
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.,Peking University Center for Human Disease Genomics, Beijing 100191, China; and.,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
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9
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van Ham M, Teich R, Philipsen L, Niemz J, Amsberg N, Wissing J, Nimtz M, Gröbe L, Kliche S, Thiel N, Klawonn F, Hubo M, Jonuleit H, Reichardt P, Müller AJ, Huehn J, Jänsch L. TCR signalling network organization at the immunological synapses of murine regulatory T cells. Eur J Immunol 2017; 47:2043-2058. [DOI: 10.1002/eji.201747041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/28/2017] [Accepted: 08/14/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Marco van Ham
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - René Teich
- Experimental Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Lars Philipsen
- Institute of Molecular and Clinical Immunology; Otto-von-Guericke University; Magdeburg Germany
| | - Jana Niemz
- Experimental Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Nicole Amsberg
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Josef Wissing
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Manfred Nimtz
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Lothar Gröbe
- Experimental Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Stefanie Kliche
- Institute of Molecular and Clinical Immunology; Otto-von-Guericke University; Magdeburg Germany
| | - Nadine Thiel
- Experimental Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Frank Klawonn
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
- Department of Computer Science; Ostfalia University of Applied Sciences; Wolfenbuettel Germany
| | - Mario Hubo
- Department of Dermatology; Johannes Gutenberg-University Mainz; Mainz Germany
| | - Helmut Jonuleit
- Department of Dermatology; Johannes Gutenberg-University Mainz; Mainz Germany
| | - Peter Reichardt
- Institute of Molecular and Clinical Immunology; Otto-von-Guericke University; Magdeburg Germany
| | - Andreas J. Müller
- Institute of Molecular and Clinical Immunology; Otto-von-Guericke University; Magdeburg Germany
- Intravital Microscopy of Infection and Immunity; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Jochen Huehn
- Experimental Immunology; Helmholtz Centre for Infection Research; Braunschweig Germany
| | - Lothar Jänsch
- Cellular Proteomics; Helmholtz Centre for Infection Research; Braunschweig Germany
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10
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Salvador-Bernáldez M, Mateus SB, Del Barco Barrantes I, Arthur SC, Martínez-A C, Nebreda AR, Salvador JM. p38α regulates cytokine-induced IFNγ secretion via the Mnk1/eIF4E pathway in Th1 cells. Immunol Cell Biol 2017; 95:814-823. [PMID: 28611474 DOI: 10.1038/icb.2017.51] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/07/2017] [Accepted: 06/07/2017] [Indexed: 01/01/2023]
Abstract
The p38 mitogen-activated protein kinase (MAPK) pathway is involved in the regulation of immune and inflammatory processes. We used p38α-conditional, p38β-deficient and p38α/β double-null mouse models to address the role of these two p38 MAPK in CD4+ T cells, and found that p38α deficiency causes these cells to hyperproliferate. Our studies indicate that both p38α and p38β are dispensable for T helper cell type 1 (Th1) differentiation but, by controlling interferon (IFN)γ and tumor necrosis factor (TNF)α production, are critical for normal Th1 effector function. We found that both p38α and p38β modulate T-cell receptor-induced IFNγ and TNFα production, whereas only p38α regulates cytokine-induced IFNγ production. The lack of p38α and p38β did not affect transcription and mRNA stability of Ifng. However, the absence of p38α in Th1 cells resulted in a decreased MNK1 phosphorylation after cytokine activation, and MNK1 inhibition blocked IFNγ production. Our results indicate that p38α regulates IFNγ secretion through the activation of the MNK1/eIF4E pathway of translation initiation and identify specific functions for p38α and p38β in T-cell proliferation.
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Affiliation(s)
| | - Sara B Mateus
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Iván Del Barco Barrantes
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Simon C Arthur
- MRC Protein Phosphorylation Unit, College of Life Sciences, University of Dundee, Dundee, UK
| | - Carlos Martínez-A
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Angel R Nebreda
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Barcelona, Spain.,ICREA, Pg. LLuis Companys 23, Barcelona, Spain
| | - Jesús M Salvador
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
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11
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Zhao D, Xu A, Dai Z, Peng J, Zhu M, Shen J, Zheng Q, Ran Z. WNT5A transforms intestinal CD8αα⁺ IELs into an unconventional phenotype with pro-inflammatory features. BMC Gastroenterol 2015; 15:173. [PMID: 26652024 PMCID: PMC4676129 DOI: 10.1186/s12876-015-0402-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 11/27/2015] [Indexed: 01/22/2023] Open
Abstract
Background Intestinal intraepithelial lymphocytes that reside within the epithelium of the intestine form one of the main branches of the immune system. A majority of IELs express CD8α homodimer together with other molecules associated with immune regulation. Growing evidence points to the WNT signaling pathway as a pivotal piece in the immune balance and focuses on its direct regulation in intestinal epithelium. Therefore we decided to investigate its role in IELs’ immune status determination. Method DSS colitis was induced in male C57BL mice. IELs were isolated from colon samples using mechanical dissociation followed by percoll gradient purification and Magnetic-activated cell sorting. Phenotype and cytokine production and condition with Wnts were analyzed by flow cytometry, real-time PCR or ELISA. Proliferation of lymphocytes were evaluated using CFSE dilution. Cell responses after WNT pathway interference were also evaluated. Results Non-canonical WNT pathway elements represented by FZD5, WNT5A and NFATc1 were remarkably elevated in colitis IELs. The non-canonical WNT5A skewed them into a pro-inflammatory category as measured by inhibitory cell surface marker LAG3, LY49E, NKG2A and activated marker CD69 and FASL. Gaining of a pro-inflammatory marker was correlated with increased IFN-γ production but not TNF whilst decreased TGF-β and IL-10. Both interrupting WNT5A/PKC pathway and adding canonical WNT stimulants could curtail its immune-activating effect. Conclusion Canonical and non-canonical WNT signals act in opposing manners concerning determining CD8αα+ IELs immune status. Targeting non-canonical WNT pathway may be promising in tackling inflammatory bowel disease.
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Affiliation(s)
- Di Zhao
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Antao Xu
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Zhanghan Dai
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Jiangchen Peng
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Mingming Zhu
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Jun Shen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Qing Zheng
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Zhihua Ran
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China.
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Ebel ME, Awe O, Kaplan MH, Kansas GS. Diverse inflammatory cytokines induce selectin ligand expression on murine CD4 T cells via p38α MAPK. THE JOURNAL OF IMMUNOLOGY 2015; 194:5781-8. [PMID: 25941329 DOI: 10.4049/jimmunol.1500485] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/02/2015] [Indexed: 01/03/2023]
Abstract
Selectins are glycan-binding adhesion molecules that mediate the initial steps of leukocyte recognition of endothelium. Cytokines control numerous aspects of CD4 Th cell differentiation, but how cytokines control the induction of ligands for E- and P-selectin on Th cell subsets remains poorly understood. Among 20 cytokines that affect Th cell differentiation, we identified six that induce expression of selectin ligands on murine CD4 T cells above the low levels associated with TCR engagement: IL-12, IL-18, IL-27, IL-9, IL-25, and TGF-β1. Collectively, these six cytokines could potentially account for selectin ligand expression on all of the currently defined nonsessile Th cell lineages, including Th1, Th2, Th9, and Th17 cells, as well as regulatory T cells. Induction of selectin ligand expression by each of these six cytokines was almost completely inhibited by pharmacologic inhibition of p38 MAPK, but not other MAPKs, or by conditional genetic deletion of p38α MAPK. Analysis of the expression of key glycosyltransferase genes revealed that p38α signaling was selectively required for induction of Fut7 and Gcnt1 but not for the induction of St3gal4 or St3gal6. Constitutively active MKK6, an immediate upstream activator of p38 MAPK, induced selectin ligand expression equivalent to that of cytokines, and this induction was completely dependent on the expression of p38α. Our results identify the repertoire of cytokines responsible for selectin ligand induction on CD4 T cells and provide a mechanistic link between Th cell development and T cell migration.
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Affiliation(s)
- Mark E Ebel
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Olufolakemi Awe
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; and Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Mark H Kaplan
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; and Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Geoffrey S Kansas
- Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
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Cross talk between the Akt and p38α pathways in macrophages downstream of Toll-like receptor signaling. Mol Cell Biol 2013; 33:4152-65. [PMID: 23979601 DOI: 10.1128/mcb.01691-12] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The stimulation of Toll-like receptors (TLRs) on macrophages by pathogen-associated molecular patterns (PAMPs) results in the activation of intracellular signaling pathways that are required for initiating a host immune response. Both phosphatidylinositol 3-kinase (PI3K)-Akt and p38 mitogen-activated protein kinase (MAPK) signaling pathways are activated rapidly in response to TLR activation and are required to coordinate effective host responses to pathogen invasion. In this study, we analyzed the role of the p38-dependent kinases MK2/3 in the activation of Akt and show that lipopolysaccharide (LPS)-induced phosphorylation of Akt on Thr308 and Ser473 requires p38α and MK2/3. In cells treated with p38 inhibitors or an MK2/3 inhibitor, phosphorylation of Akt on Ser473 and Thr308 is reduced and Akt activity is inhibited. Furthermore, BMDMs deficient in MK2/3 display greatly reduced phosphorylation of Ser473 and Thr308 following TLR stimulation. However, MK2/3 do not directly phosphorylate Akt in macrophages but act upstream of PDK1 and mTORC2 to regulate Akt phosphorylation. Akt is recruited to phosphatidylinositol 3,4,5-trisphosphate (PIP3) in the membrane, where it is activated by PDK1 and mTORC2. Analysis of lipid levels in MK2/3-deficient bone marrow-derived macrophages (BMDMs) revealed a role for MK2/3 in regulating Akt activity by affecting availability of PIP3 at the membrane. These data describe a novel role for p38α-MK2/3 in regulating TLR-induced Akt activation in macrophages.
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