1
|
Deobagkar-Lele M, Crawford G, Crockford TL, Back J, Hodgson R, Bhandari A, Bull KR, Cornall RJ. B cells require DOCK8 to elicit and integrate T cell help when antigen is limiting. Sci Immunol 2024; 9:eadd4874. [PMID: 39121196 PMCID: PMC7616390 DOI: 10.1126/sciimmunol.add4874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/01/2023] [Accepted: 07/12/2024] [Indexed: 08/11/2024]
Abstract
Dedicator of cytokinesis 8 (DOCK8) immunodeficiency syndrome is characterized by a failure of the germinal center response, a process involving the proliferation and positive selection of antigen-specific B cells. Here, we describe how DOCK8-deficient B cells are blocked at a light-zone checkpoint in the germinal centers of immunized mice, where they are unable to respond to T cell-dependent survival and selection signals and consequently differentiate into plasma cells or memory B cells. Although DOCK8-deficient B cells can acquire and present antigen to initiate activation of cognate T cells, integrin up-regulation, B cell-T cell conjugate formation, and costimulation are insufficient for sustained B cell and T cell activation when antigen availability is limited. Our findings provide an explanation for the failure of the humoral response in DOCK8 immunodeficiency syndrome and insight into how the level of available antigen modulates B cell-T cell cross-talk to fine-tune humoral immune responses and immunological memory.
Collapse
Affiliation(s)
- Mukta Deobagkar-Lele
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, Nuffield Department of Medicine, University of Oxford, Oxford
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Greg Crawford
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Tanya L. Crockford
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, Nuffield Department of Medicine, University of Oxford, Oxford
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Jennifer Back
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, Nuffield Department of Medicine, University of Oxford, Oxford
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Rose Hodgson
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Aneesha Bhandari
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
| | - Katherine R Bull
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
- CAMS-Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford
- Oxford Kidney Unit, Oxford University Hospitals Trust, Oxford
| | - Richard J. Cornall
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, Nuffield Department of Medicine, University of Oxford, Oxford
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford
- CAMS-Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford
| |
Collapse
|
2
|
Zhang B, Chen S, Yin X, McBride CD, Gertie JA, Yurieva M, Bielecka AA, Hoffmann B, Travis Hinson J, Grassmann J, Xu L, Siniscalco ER, Soldatenko A, Hoyt L, Joseph J, Norton EB, Uthaman G, Palm NW, Liu E, Eisenbarth SC, Williams A. Metabolic fitness of IgA + plasma cells in the gut requires DOCK8. Mucosal Immunol 2024; 17:431-449. [PMID: 38159726 DOI: 10.1016/j.mucimm.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024]
Abstract
Dedicator of cytokinesis 8 (DOCK8) mutations lead to a primary immunodeficiency associated with recurrent gastrointestinal infections and poor antibody responses but, paradoxically, heightened IgE to food antigens, suggesting that DOCK8 is central to immune homeostasis in the gut. Using Dock8-deficient mice, we found that DOCK8 was necessary for mucosal IgA production to multiple T cell-dependent antigens, including peanut and cholera toxin. Yet DOCK8 was not necessary in T cells for this phenotype. Instead, B cell-intrinsic DOCK8 was required for maintenance of antigen-specific IgA-secreting plasma cells (PCs) in the gut lamina propria. Unexpectedly, DOCK8 was not required for early B cell activation, migration, or IgA class switching. An unbiased interactome screen revealed novel protein partners involved in metabolism and apoptosis. Dock8-deficient IgA+ B cells had impaired cellular respiration and failed to engage glycolysis appropriately. These results demonstrate that maintenance of the IgA+ PC compartment requires DOCK8 and suggest that gut IgA+ PCs have unique metabolic requirements for long-term survival in the lamina propria.
Collapse
Affiliation(s)
- Biyan Zhang
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
| | - Shuting Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Xiangyun Yin
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Caleb D McBride
- The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jake A Gertie
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Marina Yurieva
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Agata A Bielecka
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Microbial Immunoregulation, Helmholtz Center for Infection Research, 38124 Braunschweig, Germany
| | - Brian Hoffmann
- Mass Spectrometry and Protein Chemistry, The Jackson Laboratory for Genomic Medicine, Bar Harbor, ME 04609, USA
| | - J Travis Hinson
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA; Cardiology center, Department of Medicine, UConn Health, Farmington, CT, USA
| | - Jessica Grassmann
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Lan Xu
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Emily R Siniscalco
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Arielle Soldatenko
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Laura Hoyt
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Julie Joseph
- Department of Laboratory Medicine, USA; Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19102, USA
| | - Elizabeth B Norton
- Department of Microbiology & Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Gowthaman Uthaman
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Pathology, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Noah W Palm
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Elise Liu
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Section of Rheumatology, Allergy & Immunology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Stephanie C Eisenbarth
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Adam Williams
- The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA; Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| |
Collapse
|
3
|
Bai Z, Zhang D, Gao Y, Tao B, Bao S, Enninful A, Zhang D, Su G, Tian X, Zhang N, Xiao Y, Liu Y, Gerstein M, Li M, Xing Y, Lu J, Xu ML, Fan R. Spatially Exploring RNA Biology in Archival Formalin-Fixed Paraffin-Embedded Tissues. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.06.579143. [PMID: 38370833 PMCID: PMC10871202 DOI: 10.1101/2024.02.06.579143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Spatial transcriptomics has emerged as a powerful tool for dissecting spatial cellular heterogeneity but as of today is largely limited to gene expression analysis. Yet, the life of RNA molecules is multifaceted and dynamic, requiring spatial profiling of different RNA species throughout the life cycle to delve into the intricate RNA biology in complex tissues. Human disease-relevant tissues are commonly preserved as formalin-fixed and paraffin-embedded (FFPE) blocks, representing an important resource for human tissue specimens. The capability to spatially explore RNA biology in FFPE tissues holds transformative potential for human biology research and clinical histopathology. Here, we present Patho-DBiT combining in situ polyadenylation and deterministic barcoding for spatial full coverage transcriptome sequencing, tailored for probing the diverse landscape of RNA species even in clinically archived FFPE samples. It permits spatial co-profiling of gene expression and RNA processing, unveiling region-specific splicing isoforms, and high-sensitivity transcriptomic mapping of clinical tumor FFPE tissues stored for five years. Furthermore, genome-wide single nucleotide RNA variants can be captured to distinguish different malignant clones from non-malignant cells in human lymphomas. Patho-DBiT also maps microRNA-mRNA regulatory networks and RNA splicing dynamics, decoding their roles in spatial tumorigenesis trajectory. High resolution Patho-DBiT at the cellular level reveals a spatial neighborhood and traces the spatiotemporal kinetics driving tumor progression. Patho-DBiT stands poised as a valuable platform to unravel rich RNA biology in FFPE tissues to study human tissue biology and aid in clinical pathology evaluation.
Collapse
Affiliation(s)
- Zhiliang Bai
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Dingyao Zhang
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Yan Gao
- Center for Computational and Genomic Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Bo Tao
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Shuozhen Bao
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Archibald Enninful
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Daiwei Zhang
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Graham Su
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Xiaolong Tian
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Ningning Zhang
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Yang Xiao
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Yang Liu
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Mark Gerstein
- Section on Biomedical Informatics and Data Science, Yale University, New Haven, CT 06520, USA
| | - Mingyao Li
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yi Xing
- Center for Computational and Genomic Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jun Lu
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06520, USA
- Yale Stem Cell Center and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Mina L. Xu
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Rong Fan
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA
- Yale Stem Cell Center and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA
- Human and Translational Immunology, Yale University School of Medicine, New Haven, CT 06520, USA
| |
Collapse
|
4
|
Bedi A, Choi K, Keane C, Bolger-Munro M, Ambrose AR, Gold MR. WAVE2 Regulates Actin-Dependent Processes Induced by the B Cell Antigen Receptor and Integrins. Cells 2023; 12:2704. [PMID: 38067132 PMCID: PMC10705906 DOI: 10.3390/cells12232704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
B cell antigen receptor (BCR) signaling induces actin cytoskeleton remodeling by stimulating actin severing, actin polymerization, and the nucleation of branched actin networks via the Arp2/3 complex. This enables B cells to spread on antigen-bearing surfaces in order to increase antigen encounters and to form an immune synapse (IS) when interacting with antigen-presenting cells (APCs). Although the WASp, N-WASp, and WAVE nucleation-promoting factors activate the Arp2/3 complex, the role of WAVE2 in B cells has not been directly assessed. We now show that both WAVE2 and the Arp2/3 complex localize to the peripheral ring of branched F-actin when B cells spread on immobilized anti-Ig antibodies. The siRNA-mediated depletion of WAVE2 reduced and delayed B cell spreading on immobilized anti-Ig, and this was associated with a thinner peripheral F-actin ring and reduced actin retrograde flow compared to control cells. Depleting WAVE2 also impaired integrin-mediated B cell spreading on fibronectin and the LFA-1-induced formation of actomyosin arcs. Actin retrograde flow amplifies BCR signaling at the IS, and we found that depleting WAVE2 reduced microcluster-based BCR signaling and signal amplification at the IS, as well as B cell activation in response to antigen-bearing cells. Hence, WAVE2 contributes to multiple actin-dependent processes in B lymphocytes.
Collapse
Affiliation(s)
- Abhishek Bedi
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| | - Kate Choi
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| | - Connor Keane
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| | - Madison Bolger-Munro
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| | - Ashley R Ambrose
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| | - Michael R Gold
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T1Z3, Canada
| |
Collapse
|
5
|
Mandato E, Yan Q, Ouyang J, Paczkowska J, Qin Y, Hao Y, Bojarczuk K, Hansen J, Chapuy B, Rodig SJ, Khan SJ, Redd RA, Shipp MA. MYD88L265P augments proximal B-cell receptor signaling in large B-cell lymphomas via an interaction with DOCK8. Blood 2023; 142:1219-1232. [PMID: 37467575 DOI: 10.1182/blood.2023019865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/31/2023] [Accepted: 06/16/2023] [Indexed: 07/21/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is a clinically and genetically heterogeneous disease with at least 5 recognized molecular subtypes. Cluster 5 (C5)/MCD tumors frequently exhibit concurrent alterations in the toll-like receptor (TLR) and B-cell receptor (BCR) pathway members, MYD88L265P and CD79B, and have a less favorable prognosis. In healthy B cells, the synergy between TLR and BCR signaling pathways integrates innate and adaptive immune responses and augments downstream NF-κB activation. In addition, physiologic TLR9 pathway engagement via MYD88, protein tyrosine kinase 2 (PYK2), and dedicator of cytokinesis 8 (DOCK8) increases proximal BCR signaling in healthy murine B cells. Although C5/MCD DLBCLs are selectively sensitive to Bruton tyrosine kinase (BTK) inhibition in in vitro studies and certain clinical trials, the role of mutated MYD88 in proximal BCR signaling remains undefined. Using engineered DLBCL cell line models, we found that concurrent MYD88L265P and CD79B alterations significantly increased the magnitude and duration of proximal BCR signaling, at the level of spleen tyrosine kinase and BTK, and augmented PYK2-dependent DOCK8 phosphorylation. MYD88L265P DLBCLs have significantly increased colocalization of DOCK8 with both MYD88 and the proximal BCR-associated Src kinase, LYN, in comparison with MYD88WT DLBCLs, implicating DOCK8 in MYD88L265P/proximal BCR cross talk. Additionally, DOCK8 depletion selectively decreased proximal BCR signaling, cellular proliferation, and viability of DLBCLs with endogenous MYD88L265P/CD79BY196F alterations and increased the efficacy of BTK blockade in these lymphomas. Therefore, MYD88L265P/DOCK8-enhanced proximal BCR signaling is a likely mechanism for the increased sensitivity of C5/MCD DLBCLs to BTK blockade.
Collapse
Affiliation(s)
- Elisa Mandato
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Qingsheng Yan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Jing Ouyang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Bristol Myers Squibb, Cambridge, MA
| | - Julia Paczkowska
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Yan Qin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Parthenon Therapeutics, Boston, MA
| | - Yansheng Hao
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Department of Pathology, University of Rochester Medical Center, Rochester, NY
| | - Kamil Bojarczuk
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Julia Hansen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Björn Chapuy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Department of Hematology, Oncology, and Tumor Immunology, Charité - University Medical Center Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Scott J Rodig
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Sumbul Jawed Khan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Robert A Redd
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA
| | - Margaret A Shipp
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| |
Collapse
|
6
|
Gu H, Fu Y, Yu B, Luo L, Kang D, Xie M, Jing Y, Chen Q, Zhang X, Lai J, Guan F, Forsman H, Shi J, Yang L, Lei J, Du X, Zhang X, Liu C. Ultra-high static magnetic fields cause immunosuppression through disrupting B-cell peripheral differentiation and negatively regulating BCR signaling. MedComm (Beijing) 2023; 4:e379. [PMID: 37789963 PMCID: PMC10542999 DOI: 10.1002/mco2.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 10/05/2023] Open
Abstract
To increase the imaging resolution and detection capability, the field strength of static magnetic fields (SMFs) in magnetic resonance imaging (MRI) has significantly increased in the past few decades. However, research on the side effects of high magnetic field is still very inadequate and the effects of SMF above 1 T (Tesla) on B cells have never been reported. Here, we show that 33.0 T ultra-high SMF exposure causes immunosuppression and disrupts B cell differentiation and signaling. 33.0 T SMF treatment resulted in disturbance of B cell peripheral differentiation and antibody secretion and reduced the expression of IgM on B cell membrane, and these might be intensity dependent. In addition, mice exposed to 33.0 T SMF showed inhibition on early activation of B cells, including B cell spreading, B cell receptor clustering and signalosome recruitment, and depression of both positive and negative molecules in the proximal BCR signaling, as well as impaired actin reorganization. Sequencing and gene enrichment analysis showed that SMF stimulation also affects splenic B cells' transcriptome and metabolic pathways. Therefore, in the clinical application of MRI, we should consider the influence of SMF on the immune system and choose the optimal intensity for treatment.
Collapse
Affiliation(s)
- Heng Gu
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Yufan Fu
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Biao Yu
- High Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiAnhuiChina
| | - Li Luo
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Danqing Kang
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Miaomiao Xie
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Yukai Jing
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Qiuyue Chen
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Xin Zhang
- GeneMind Biosciences Company LimitedShenzhenChina
| | - Juan Lai
- GeneMind Biosciences Company LimitedShenzhenChina
| | - Fei Guan
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Huamei Forsman
- Department of Rheumatology and Inflammation ResearchInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGoteborgSweden
| | - Junming Shi
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Lu Yang
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Jiahui Lei
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| | - Xingrong Du
- Shanghai Key Laboratory of Metabolic Remodeling and HealthInstitute of Metabolism and Integrative BiologyFudan UniversityShanghaiChina
| | - Xin Zhang
- High Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiAnhuiChina
- Institutes of Physical Science and Information TechnologyAnhui UniversityHefeiAnhuiChina
| | - Chaohong Liu
- Department of Pathogen BiologySchool of Basic MedicineTongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonostic Infectious DiseaseHuazhong University of Science and TechnologyWuhanChina
| |
Collapse
|
7
|
Jiang J, Qin T, Zhang L, Liu Q, Wu J, Dai R, Zhou L, Zhao Q, Luo X, Wang H, Zhao X. IL-21 Rescues the Defect of IL-10-Producing Regulatory B Cells and Improves Allergic Asthma in DOCK8 Deficient Mice. Front Immunol 2021; 12:695596. [PMID: 34867940 PMCID: PMC8636116 DOI: 10.3389/fimmu.2021.695596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Mutations in human DOCK8 cause a combined immunodeficiency syndrome characterized by allergic diseases such as asthma and food allergy. However, the underlying mechanism is unclear. Regulatory B (Breg) cells that produce IL-10 exert potent immunosuppressive functions in patients with allergic and autoimmune disorders. DOCK8-deficient B cells show diminished responses to TLR9 signaling, suggesting a possible defect in IL-10-producing Breg cells in those with DOCK8 deficiency, which may contribute to allergies. Here, we isolated peripheral blood mononuclear cells from DOCK8-deficient patients and generated a Dock8 KO mouse model to study the effect of DOCK8 deficiency on Breg cells. DOCK8-deficient patients and Dock8 KO mice harbored quantitative and qualitative defects in IL-10-producing Breg cells; these defects were caused by abnormal Dock8-/- CD4+ T cells. We found that recombinant murine (rm)IL-21 restored the function of Bregs both in vitro and in Dock8 KO mice, leading to reduced inflammatory cell infiltration of the lungs in a murine asthma model. Overall, the results provide new insight into the potential design of Breg-based or IL-21-based therapeutic strategies for allergic diseases, including asthma associated with DOCK8 deficiency.
Collapse
Affiliation(s)
- Jinqiu Jiang
- Department of Dermatology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Tao Qin
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Liang Zhang
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qiao Liu
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jiabin Wu
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Rongxin Dai
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Lina Zhou
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qin Zhao
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoyan Luo
- Department of Dermatology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Hua Wang
- Department of Dermatology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaodong Zhao
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
8
|
Yang L, Li N, Yang D, Chen A, Tang J, Jing Y, Kang D, Jiang P, Dai X, Luo L, Chen Q, Chang J, Liu J, Gu H, Huang Y, Chen Q, Li Z, Zhu Y, Miller H, Chen Y, Qiu L, Mei H, Hu Y, Gong Q, Liu C. CCL2 regulation of MST1-mTOR-STAT1 signaling axis controls BCR signaling and B-cell differentiation. Cell Death Differ 2021; 28:2616-2633. [PMID: 33879857 PMCID: PMC8408168 DOI: 10.1038/s41418-021-00775-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 02/01/2023] Open
Abstract
Chemokines are important regulators of the immune system, inducing specific cellular responses by binding to receptors on immune cells. In SLE patients, decreased expression of CCL2 on mesenchymal stem cells (MSC) prevents inhibition of B-cell proliferation, causing the characteristic autoimmune phenotype. Nevertheless, the intrinsic role of CCL2 on B-cell autoimmunity is unknown. In this study using Ccl2 KO mice, we found that CCL2 deficiency enhanced BCR signaling by upregulating the phosphorylation of the MST1-mTORC1-STAT1 axis, which led to reduced marginal zone (MZ) B cells and increased germinal center (GC) B cells. The abnormal differentiation of MZ and GC B cells were rescued by in vivo inhibition of mTORC1. Additionally, the inhibition of MST1-mTORC1-STAT1 with specific inhibitors in vitro also rescued the BCR signaling upon antigenic stimulation. The deficiency of CCL2 also enhanced the early activation of B cells including B-cell spreading, clustering and signalosome recruitment by upregulating the DOCK8-WASP-actin axis. Our study has revealed the intrinsic role and underlying molecular mechanism of CCL2 in BCR signaling, B-cell differentiation, and humoral response.
Collapse
Affiliation(s)
- Lu Yang
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Li
- grid.410654.20000 0000 8880 6009Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
| | - Di Yang
- grid.488412.3Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3Department of Pediatric Research Institute, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3Ministry of Education Key Laboratory of Child Development and Disorder, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Anwei Chen
- grid.488412.3Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3Department of Pediatric Research Institute, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3Ministry of Education Key Laboratory of Child Development and Disorder, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, China ,grid.488412.3Department of Dermatology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Jianlong Tang
- grid.33199.310000 0004 0368 7223Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukai Jing
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Danqing Kang
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Panpan Jiang
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Dai
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Luo
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiuyue Chen
- grid.410654.20000 0000 8880 6009Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
| | - Jiang Chang
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ju Liu
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Gu
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanmei Huang
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qianglin Chen
- grid.410654.20000 0000 8880 6009Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
| | - Zhenzhen Li
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingzi Zhu
- grid.33199.310000 0004 0368 7223Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heather Miller
- grid.94365.3d0000 0001 2297 5165Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT USA
| | - Yan Chen
- grid.413390.cThe Second Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Liru Qiu
- grid.33199.310000 0004 0368 7223Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Mei
- grid.33199.310000 0004 0368 7223Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Hu
- grid.33199.310000 0004 0368 7223Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quan Gong
- grid.410654.20000 0000 8880 6009Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
| | - Chaohong Liu
- grid.33199.310000 0004 0368 7223Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
9
|
Deretic N, Bolger-Munro M, Choi K, Abraham L, Gold MR. The Actin-Disassembly Protein Glia Maturation Factor γ Enhances Actin Remodeling and B Cell Antigen Receptor Signaling at the Immune Synapse. Front Cell Dev Biol 2021; 9:647063. [PMID: 34336818 PMCID: PMC8318000 DOI: 10.3389/fcell.2021.647063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
Signaling by the B cell antigen receptor (BCR) initiates actin remodeling. The assembly of branched actin networks that are nucleated by the Arp2/3 complex exert outward force on the plasma membrane, allowing B cells to form membrane protrusions that can scan the surface of antigen-presenting cells (APCs). The resulting Arp2/3 complex-dependent actin retrograde flow promotes the centripetal movement and progressive coalescence of BCR microclusters, which amplifies BCR signaling. Glia maturation factor γ (GMFγ) is an actin disassembly-protein that releases Arp2/3 complex-nucleated actin filaments from actin networks. By doing so, GMFγ could either oppose the actions of the Arp2/3 complex or support Arp2/3 complex-nucleated actin polymerization by contributing to the recycling of actin monomers and Arp2/3 complexes. We now show that reducing the levels of GMFγ in human B cell lines via transfection with a specific siRNA impairs the ability of B cells to spread on antigen-coated surfaces, decreases the velocity of actin retrograde flow, diminishes the coalescence of BCR microclusters into a central cluster at the B cell-APC contact site, and decreases APC-induced BCR signaling. These effects of depleting GMFγ are similar to what occurs when the Arp2/3 complex is inhibited. This suggests that GMFγ cooperates with the Arp2/3 complex to support BCR-induced actin remodeling and amplify BCR signaling at the immune synapse.
Collapse
Affiliation(s)
- Nikola Deretic
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Madison Bolger-Munro
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Kate Choi
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Libin Abraham
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Michael R Gold
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
10
|
WASP and Mst1 coregulate B-cell development and B-cell receptor signaling. Blood Adv 2021; 4:573-585. [PMID: 32045478 DOI: 10.1182/bloodadvances.2018027870] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 12/11/2019] [Indexed: 12/25/2022] Open
Abstract
Mst1 is a serine/threonine kinase involved in cell survival, proliferation, apoptosis, and tumorigenesis. In mice, Mst1 regulates actin dynamics required for T-cell adhesion and migration, which correlate with thymic egress and entry into lymphatic tissue. The role of Mst1 in B cells and how it may control actin-dependent processes has not been well characterized. Wiskott-Aldrich syndrome protein (WASP) deficiency only moderately affects development and B-cell receptor (BCR) signaling, suggesting WASP likely associates with other molecules. We investigated whether Mst1 associates with WASP to regulate B-cell development and activation. Experimenting on Mst1/WASP double knockout (DKO) mice, we found a severe defect in the bone marrow B-cell development, and BCR signaling in the DKO mice was severely reduced. Even though WASP or Mst1 could influence the early B-cell activation, we found that the early activation events such as B-cell spreading, BCR clustering, and BCR signaling were much more impaired in the B cells from DKO mice. Furthermore, reciprocal regulation between Mst1 and WASP was observed in WASP and Mst1 KO mice, whereby the localization and function of phosphorylated WASP were affected in Mst1 KO mice. Most importantly, Mst1 inhibits the expression of WASP by decreasing the expression of WASP-interacting protein. Interestingly, we also found that WASP deficiency in patients and mice interferes with phosphorylated Mst1 localization and therefore function in B cells. Overall, our study provides a partner for WASP to regulate B-cell development and BCR signaling, as well as the reciprocal regulating molecular mechanism of one another.
Collapse
|
11
|
Du Z, Chen A, Huang L, Dai X, Chen Q, Yang D, Li L, Miller H, Westerberg L, Ding Y, Tang X, Kubo M, Jiang L, Zhao X, Wang H, Liu C. STAT3 couples with 14-3-3σ to regulate BCR signaling, B-cell differentiation, and IgE production. J Allergy Clin Immunol 2021; 147:1907-1923.e6. [PMID: 33045280 DOI: 10.1016/j.jaci.2020.09.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 09/19/2020] [Accepted: 09/29/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND STAT3 or dedicator of cytokinesis protein 8 (Dock8) loss-of-function (LOF) mutations cause hyper-IgE syndrome. The role of abnormal T-cell function has been extensively investigated; however, the contribution of B-cell-intrinsic dysfunction to elevated IgE levels is unclear. OBJECTIVE We sought to determine the underlying molecular mechanism of how STAT3 regulates B-cell receptor (BCR) signaling, B-cell differentiation, and IgE production. METHODS We used samples from patients with STAT3 LOF mutation and samples from the STAT3 B-cell-specific knockout (KO) mice Mb1CreStat3flox/flox mice (B-STAT3 KO) to investigate the mechanism of hyper-IgE syndrome. RESULTS We found that the peripheral B-cell homeostasis in B-STAT3 KO mice mimicked the phenotype of patients with STAT3 LOF mutation, having decreased levels of follicular and germinal center B cells but increased levels of marginal zone and IgE+ B cells. Furthermore, B-STAT3 KO B cells had reduced BCR signaling following antigenic stimulation owing to reduced BCR clustering and decreased accumulation of Wiskott-Aldrich syndrome protein and F-actin. Excitingly, a central hub protein, 14-3-3σ, which is essential for the increase in IgE production, was enhanced in the B cells of B-STAT3 KO mice and patients with STAT3 LOF mutation. The increase of 14-3-3σ was associated with increased expression of the upstream mediator, microRNA146A. Inhibition of 14-3-3σ with R18 peptide in B-STAT3 KO mice rescued the BCR signaling, follicular, germinal center, and IgE+ B-cell differentiation to the degree seen in wild-type mice. CONCLUSIONS Altogether, our study has established a novel regulatory pathway of STAT3-miRNA146A-14-3-3σ to regulate BCR signaling, peripheral B-cell differentiation, and IgE production.
Collapse
Affiliation(s)
- Zuochen Du
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Second Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Anwei Chen
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Lu Huang
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Dai
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiuyue Chen
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Di Yang
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Liling Li
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Heather Miller
- Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Mont
| | - Lisa Westerberg
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Yuan Ding
- Division of Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Masato Kubo
- Laboratory for Cytokine Regulation, Center for Integrative Medical Science, RIKEN Yokohama Institute, Kanagawa, Japan
| | - Liping Jiang
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaodong Zhao
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorder, Children's Hospital of Chongqing Medical University, Chongqing, China; International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
| | - Hua Wang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China.
| | - Chaohong Liu
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
12
|
Bolger-Munro M, Choi K, Cheung F, Liu YT, Dang-Lawson M, Deretic N, Keane C, Gold MR. The Wdr1-LIMK-Cofilin Axis Controls B Cell Antigen Receptor-Induced Actin Remodeling and Signaling at the Immune Synapse. Front Cell Dev Biol 2021; 9:649433. [PMID: 33928084 PMCID: PMC8076898 DOI: 10.3389/fcell.2021.649433] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/12/2021] [Indexed: 12/27/2022] Open
Abstract
When B cells encounter membrane-bound antigens, the formation and coalescence of B cell antigen receptor (BCR) microclusters amplifies BCR signaling. The ability of B cells to probe the surface of antigen-presenting cells (APCs) and respond to APC-bound antigens requires remodeling of the actin cytoskeleton. Initial BCR signaling stimulates actin-related protein (Arp) 2/3 complex-dependent actin polymerization, which drives B cell spreading as well as the centripetal movement and coalescence of BCR microclusters at the B cell-APC synapse. Sustained actin polymerization depends on concomitant actin filament depolymerization, which enables the recycling of actin monomers and Arp2/3 complexes. Cofilin-mediated severing of actin filaments is a rate-limiting step in the morphological changes that occur during immune synapse formation. Hence, regulators of cofilin activity such as WD repeat-containing protein 1 (Wdr1), LIM domain kinase (LIMK), and coactosin-like 1 (Cotl1) may also be essential for actin-dependent processes in B cells. Wdr1 enhances cofilin-mediated actin disassembly. Conversely, Cotl1 competes with cofilin for binding to actin and LIMK phosphorylates cofilin and prevents it from binding to actin filaments. We now show that Wdr1 and LIMK have distinct roles in BCR-induced assembly of the peripheral actin structures that drive B cell spreading, and that cofilin, Wdr1, and LIMK all contribute to the actin-dependent amplification of BCR signaling at the immune synapse. Depleting Cotl1 had no effect on these processes. Thus, the Wdr1-LIMK-cofilin axis is critical for BCR-induced actin remodeling and for B cell responses to APC-bound antigens.
Collapse
Affiliation(s)
- Madison Bolger-Munro
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Kate Choi
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Faith Cheung
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Yi Tian Liu
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - May Dang-Lawson
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Nikola Deretic
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Connor Keane
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Michael R Gold
- Department of Microbiology & Immunology and Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
13
|
Chen Y, Chen Y, Yin W, Han H, Miller H, Li J, Herrada AA, Kubo M, Sui Z, Gong Q, Liu C. The regulation of DOCK family proteins on T and B cells. J Leukoc Biol 2020; 109:383-394. [PMID: 32542827 DOI: 10.1002/jlb.1mr0520-221rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 01/01/2023] Open
Abstract
The dedicator of cytokinesis (DOCK) family proteins consist of 11 members, each of which contains 2 domains, DOCK homology region (DHR)-1 and DHR-2, and as guanine nucleotide exchange factors, they mediate activation of small GTPases. Both DOCK2 and DOCK8 deficiencies in humans can cause severe combined immunodeficiency, but they have different characteristics. DOCK8 defect mainly causes high IgE, allergic disease, refractory skin virus infection, and increased incidence of malignant tumor, whereas DOCK2 defect mainly causes early-onset, invasive infection with less atopy and increased IgE. However, the underlying molecular mechanisms causing the disease remain unclear. This paper discusses the role of DOCK family proteins in regulating B and T cells, including development, survival, migration, activation, immune tolerance, and immune functions. Moreover, related signal pathways or molecule mechanisms are also described in this review. A greater understanding of DOCK family proteins and their regulation of lymphocyte functions may facilitate the development of new therapeutics for immunodeficient patients and improve their prognosis.
Collapse
Affiliation(s)
- Yuanyuan Chen
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Chen
- The Second Department of Pediatrics, Affiliated Hospital of Zunyi, Zunyi, Guizhou, China
| | - Wei Yin
- Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Han
- Department of Hematology of Liyuan Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heather Miller
- The Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Jianrong Li
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Andres A Herrada
- Lymphatic and Inflammation Research Laboratory, Facultad de Ciencias de la Salud, Instituto de Ciencias Biomedicas, Universidad Autonoma de Chile, Talca, Chile
| | - Masato Kubo
- Laboratory for Cytokine Regulation, Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, Yokohama, Kanagawa, Japan
| | - Zhiwei Sui
- Division of Medical and Biological Measurement, National Institute of Metrology, Beijing, China
| | - Quan Gong
- Department of immunology, School of Medicine, Yangtze University, Jingzhou, China.,Clinical Molecular Immunology Center, School of Medicine, Yangtze University, Jingzhou, China
| | - Chaohong Liu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
14
|
Abstract
Improvement in genetic testing has allowed specific delineation of several distinct clinical causes characterized by the hyperimmunoglobulin E (IgE) phenotype of eczema, recurrent infections, and elevated serum IgE. Mutations in STAT3, DOCK8, PGM3, ERBIN, IL6ST, and CARD11 cause clinical phenotypes that can present in this manner. This article focuses on loss of function STAT3 mutations causing autosomal-dominant hyper-IgE syndrome and dedicator of cytokinesis 8 deficiency, with discussion of other more recently described diseases.
Collapse
Affiliation(s)
- Jenna R E Bergerson
- Laboratory of Clinical Immunology and Microbiology, National Institutes of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 10 Center Drive, Building 10, Room 11N244a, Bethesda, MD 20892, USA
| | - Alexandra F Freeman
- Laboratory of Clinical Immunology and Microbiology, National Institutes of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), 10 Center Drive, Building 10, Room 12C103, Bethesda, MD 20892, USA.
| |
Collapse
|
15
|
Jing Y, Kang D, Liu L, Huang H, Chen A, Yang L, Jiang P, Li N, Miller H, Liu Z, Zhu X, Yang J, Wang X, Sun J, Liu Z, Liu W, Zhou X, Liu C. Dedicator of cytokinesis protein 2 couples with lymphoid enhancer-binding factor 1 to regulate expression of CD21 and B-cell differentiation. J Allergy Clin Immunol 2019; 144:1377-1390.e4. [PMID: 31405607 DOI: 10.1016/j.jaci.2019.05.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 05/21/2019] [Accepted: 05/24/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND B-cell receptor (BCR) signaling, combined with CD19 and CD21 signals, imparts specific control of B-cell responses. Dedicator of cytokinesis protein 2 (DOCK2) is critical for the migration and motility of lymphocytes. Although absence of DOCK2 leads to lymphopenia, little is known about the signaling mechanisms and physiologic functions of DOCK2 in B cells. OBJECTIVE We sought to determine the underlying molecular mechanism of how DOCK2 regulates BCR signaling and peripheral B-cell differentiation. METHODS In this study we used genetic models for DOCK2, Wiskott-Aldrich syndrome protein (WASP), and lymphoid enhancer-binding factor 1 deficiency to study their interplay in BCR signaling and B-cell differentiation. RESULTS We found that the absence of DOCK2 led to downregulation of proximal and distal BCR signaling molecules, including CD19, but upregulation of SH2-containing inositol 5 phosphatase 1, a negative signaling molecule. Interestingly, DOCK2 deficiency reduced CD19 and CD21 expression at the mRNA and/or protein levels and was associated with reduced numbers of marginal zone B cells. Additionally, loss of DOCK2 reduced activation of WASP and accelerated degradation of WASP, resulting into reduced actin accumulation and early activation of B cells. Mechanistically, the absence of DOCK2 upregulates the expression of lymphoid enhancer-binding factor 1. These differences were associated with altered humoral responses in the absence of DOCK2. CONCLUSIONS Overall, our study has provided a novel underlying molecular mechanism of how DOCK2 deficiency regulates surface expression of CD21, which leads to downregulation of CD19-mediated BCR signaling and marginal zone B-cell differentiation.
Collapse
Affiliation(s)
- Yukai Jing
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Danqing Kang
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Luyao Liu
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai, China
| | - Huang Huang
- Institute of Immunology, Army Medical University, Chongqing, China
| | - Anwei Chen
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Lu Yang
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Panpan Jiang
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Li
- Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
| | - Heather Miller
- Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Mont
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofei Zhu
- Department of Clinical immunology, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
| | - Jun Yang
- Department of Immunology, Shenzhen Children's Hospital, Shenzhen, China
| | - Xiaochuan Wang
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai, China
| | - Jinqiao Sun
- Department of Clinical Immunology, Children's Hospital of Fudan University, Shanghai, China.
| | - Zhiping Liu
- School of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, China.
| | - Wanli Liu
- MOE Key Laboratory of Protein Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Life Sciences, Institute for Immunology, Tsinghua University, Beijing, China.
| | - Xinyuan Zhou
- Institute of Immunology, Army Medical University, Chongqing, China.
| | - Chaohong Liu
- Department of Pathogen Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
16
|
IL-10-Dependent Crosstalk between Murine Marginal Zone B Cells, Macrophages, and CD8α + Dendritic Cells Promotes Listeria monocytogenes Infection. Immunity 2019; 51:64-76.e7. [PMID: 31231033 DOI: 10.1016/j.immuni.2019.05.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 03/20/2019] [Accepted: 05/21/2019] [Indexed: 01/07/2023]
Abstract
Type 1 CD8α+ conventional dendritic cells (cDC1s) are required for CD8+ T cell priming but, paradoxically, promote splenic Listeria monocytogenes infection. Using mice with impaired cDC2 function, we ruled out a role for cDC2s in this process and instead discovered an interleukin-10 (IL-10)-dependent cellular crosstalk in the marginal zone (MZ) that promoted bacterial infection. Mice lacking the guanine nucleotide exchange factor DOCK8 or CD19 lost IL-10-producing MZ B cells and were resistant to Listeria. IL-10 increased intracellular Listeria in cDC1s indirectly by reducing inducible nitric oxide synthase expression early after infection and increasing intracellular Listeria in MZ metallophilic macrophages (MMMs). These MMMs trans-infected cDC1s, which, in turn, transported Listeria into the white pulp to prime CD8+ T cells. However, this also facilitated bacterial expansion. Therefore, IL-10-mediated crosstalk between B cells, macrophages, and cDC1s in the MZ promotes both Listeria infection and CD8+ T cell activation.
Collapse
|
17
|
Pillay BA, Avery DT, Smart JM, Cole T, Choo S, Chan D, Gray PE, Frith K, Mitchell R, Phan TG, Wong M, Campbell DE, Hsu P, Ziegler JB, Peake J, Alvaro F, Picard C, Bustamante J, Neven B, Cant AJ, Uzel G, Arkwright PD, Casanova JL, Su HC, Freeman AF, Shah N, Hickstein DD, Tangye SG, Ma CS. Hematopoietic stem cell transplant effectively rescues lymphocyte differentiation and function in DOCK8-deficient patients. JCI Insight 2019; 5:127527. [PMID: 31021819 DOI: 10.1172/jci.insight.127527] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Bi-allelic inactivating mutations in DOCK8 cause a combined immunodeficiency characterised by severe pathogen infections, eczema, allergies, malignancy and impaired humoral responses. These clinical features result from functional defects in most lymphocyte lineages. Thus, DOCK8 plays a key role in immune cell function. Hematopoietic stem cell transplantation (HSCT) is curative for DOCK8 deficiency. While previous reports have described clinical outcomes for DOCK8 deficiency following HSCT, the effect on lymphocyte reconstitution and function has not been investigated. Our study determined whether defects in lymphocyte differentiation and function in DOCK8-deficient patients were restored following HSCT. DOCK8-deficient T and B lymphocytes exhibited aberrant activation and effector function in vivo and in vitro. Frequencies of αβ T and MAIT cells were reduced while γδT cells were increased in DOCK8-deficient patients. HSCT improved, abnormal lymphocyte function in DOCK8-deficient patients. Elevated total and allergen-specific IgE in DOCK8-deficient patients decreased over time following HSCT. Our results document the extensive catalogue of cellular defects in DOCK8-deficient patients, and the efficacy of HSCT to correct these defects, concurrent with improvements in clinical phenotypes. Overall, our findings provide mechanisms at a functional cellular level for improvements in clinical features of DOCK8 deficiency post-HSCT, identify biomarkers that correlate with improved clinical outcomes, and inform the general dynamics of immune reconstitution in patients with monogenic immune disorders following HSCT.
Collapse
Affiliation(s)
- Bethany A Pillay
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Danielle T Avery
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Joanne M Smart
- Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Theresa Cole
- Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Sharon Choo
- Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Damien Chan
- Women and Children's Hosp==ital, Adelaide, South Australia, Australia
| | - Paul E Gray
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, New South Wales, Australia.,School of Women's and Children's Health, UNSW Sydney, Sydney, New South Wales, Australia.,Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia
| | - Katie Frith
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, New South Wales, Australia.,School of Women's and Children's Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Richard Mitchell
- School of Women's and Children's Health, UNSW Sydney, Sydney, New South Wales, Australia.,Kids Cancer Centre, Sydney Children's Hospital, Randwick, New South Wales Australia
| | - Tri Giang Phan
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia.,Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia
| | - Melanie Wong
- Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia.,Children's Hospital at Westmead, Westmead, New South Wales, Australia
| | - Dianne E Campbell
- Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia.,Children's Hospital at Westmead, Westmead, New South Wales, Australia
| | - Peter Hsu
- Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia.,Children's Hospital at Westmead, Westmead, New South Wales, Australia
| | - John B Ziegler
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, New South Wales, Australia.,School of Women's and Children's Health, UNSW Sydney, Sydney, New South Wales, Australia.,Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia
| | - Jane Peake
- Queensland Children's Hospital, South Brisbane, Queensland, Australia
| | - Frank Alvaro
- Pediatric Hematology, John Hunter Hospital, New Lambton, New South Wales, Australia
| | - Capucine Picard
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, INSERM UMR 1163, Imagine institut, Paris, France.,Study Center for Primary Immunodeficiencies, Assistance Publique-Hôpitaux de Paris (AP-HP), Necker Hospital for Sick Children, Paris, France.,Pediatric Hematology and Immunology Unit, Necker Hospital for Sick Children, AP-HP, Paris, France
| | - Jacinta Bustamante
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, INSERM UMR 1163, Imagine institut, Paris, France.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Institut IMAGINE, Necker Medical School, University Paris Descartes Paris, France.,St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York, USA
| | - Benedicte Neven
- Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, AP-HP, Paris, France
| | - Andrew J Cant
- Great North Children's Hospital, Newcastle upon Tyne Hospitals, NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.,Primary Immunodeficiency Group, Institute of Cellular Medicine, Newcastle upon Tyne University, Newcastle upon Tyne, United Kingdom
| | - Gulbu Uzel
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Peter D Arkwright
- Lydia Becker Institute of Immunology & Inflammation, University of Manchester, Manchester, United Kingdom
| | - Jean-Laurent Casanova
- Pediatric Hematology and Immunology Unit, Necker Hospital for Sick Children, AP-HP, Paris, France.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Institut IMAGINE, Necker Medical School, University Paris Descartes Paris, France.,St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York, USA.,Howard Hughes Medical Institute, New York, New York, USA
| | - Helen C Su
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Alexandra F Freeman
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | | | - Dennis D Hickstein
- Experimental Transplantation and Immunology Branch, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Stuart G Tangye
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia.,Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia
| | - Cindy S Ma
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia.,Clinical Immunogenomics Research Consortium of Australia (CIRCA), Sydney, New South Wales, Australia
| |
Collapse
|
18
|
Sun X, Wei Y, Lee PP, Ren B, Liu C. The role of WASp in T cells and B cells. Cell Immunol 2019; 341:103919. [PMID: 31047647 DOI: 10.1016/j.cellimm.2019.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/08/2019] [Accepted: 04/16/2019] [Indexed: 12/21/2022]
Abstract
Wiskott-Aldrich syndrome (WAS) is a form of primary immunodeficiency (PIDs) resulting from mutations of the gene that encodes Wiskott-Aldrich syndrome protein (WASp). WASp is the first identified and most widely studied protein belonging to the actin nucleation-promoting factor family and plays significant role in integrating and transforming signals from critical receptors on the cell surface to actin remodeling. WASp functions in immune defense and homeostasis through the regulation of actin cytoskeleton-dependent cellular processes as well as processes uncoupled with actin polymerization like nuclear transcription programs. In this article, we review the mechanisms of WASp activation through an understanding of its structure. We further discuss the role of WASp in adaptive immunity, paying special attention to some recent findings on the crucial role of WASp in the formation of immunological synapse, the regulation of T follicular helper (Tfh) cells and in the prevention of autoimmunity.
Collapse
Affiliation(s)
- Xizi Sun
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yin Wei
- Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Pamela P Lee
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Boxu Ren
- Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China; Clinical Molecular Immunology Center, School of Medicine, Yangtze University, Jingzhou, China.
| | - Chaohong Liu
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.
| |
Collapse
|
19
|
Chen A, Yang D, Xuan X, Miller H, Luo X, Yu J, Yang G, Wang H, Liu C. Dock5 controls the peripheral B cell differentiation via regulating BCR signaling and actin reorganization. Cell Immunol 2019; 337:15-21. [PMID: 30661670 DOI: 10.1016/j.cellimm.2019.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/25/2018] [Accepted: 01/10/2019] [Indexed: 01/29/2023]
Abstract
As an atypical guanine nucleotide exchange factor (GEF), Dock5 has been extensively studied in cellular functions. However, the role of Dock5 on B-cell immunity still remain elusive. In this study, we generated a Dock5 knockout mouse model to study the effect of Dock5 deficiency on B cell development, differentiation and BCR signaling. We found that the absence of Dock5 leads to a moderate effect on B cell development in the bone marrow and reduces follicular (FO) and marginal zone (MZ) B cells. Mechanistically, the key positive upstream B-cell receptor (BCR) signaling molecules, CD19 and Brutons tyrosine kinase (Btk), whose activation determines the fate of FO and MZ B cells, is reduced in Dock5 KO B cells upon antigenic stimulation by using total internal reflection fluorscence microscopy (TIRF) and immunoblot. Interestingly we found that the cellular filamentous actin (F-actin), also decreased in Dock5 KO B cells upon stimulation, which, in turn, offers feedback to BCR signaling. Our study has unveiled that Dock5 regulates the peripheral B cell differentiation via controlling the CD19-Btk signaling axis as well as actin reorganization.
Collapse
Affiliation(s)
- Anwei Chen
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, China; Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Di Yang
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, China
| | - Xingtian Xuan
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Heather Miller
- Department of Intracellular Pathogens, National Institute of Allergy and Infectious Diseases, Hamilton, MT, United States
| | - Xiaoyan Luo
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Yu
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Hua Wang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China.
| | - Chaohong Liu
- Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China; Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China; Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, China; Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan 430030, China.
| |
Collapse
|
20
|
Li J, Yin W, Jing Y, Kang D, Yang L, Cheng J, Yu Z, Peng Z, Li X, Wen Y, Sun X, Ren B, Liu C. The Coordination Between B Cell Receptor Signaling and the Actin Cytoskeleton During B Cell Activation. Front Immunol 2019; 9:3096. [PMID: 30687315 PMCID: PMC6333714 DOI: 10.3389/fimmu.2018.03096] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 12/13/2018] [Indexed: 01/27/2023] Open
Abstract
B-cell activation plays a crucial part in the immune system and is initiated via interaction between the B cell receptor (BCR) and specific antigens. In recent years with the help of modern imaging techniques, it was found that the cortical actin cytoskeleton changes dramatically during B-cell activation. In this review, we discuss how actin-cytoskeleton reorganization regulates BCR signaling in different stages of B-cell activation, specifically when stimulated by antigens, and also how this reorganization is mediated by BCR signaling molecules. Abnormal BCR signaling is associated with the progression of lymphoma and immunological diseases including autoimmune disorders, and recent studies have proved that impaired actin cytoskeleton can devastate the normal activation of B cells. Therefore, to figure out the coordination between the actin cytoskeleton and BCR signaling may reveal an underlying mechanism of B-cell activation, which has potential for new treatments for B-cell associated diseases.
Collapse
Affiliation(s)
- Jingwen Li
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Yin
- Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukai Jing
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Danqing Kang
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lu Yang
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiali Cheng
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ze Yu
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zican Peng
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingbo Li
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Wen
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xizi Sun
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Boxu Ren
- Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China
- Clinical Molecular Immunology Center, School of Medicine, Yangtze University, Jingzhou, China
| | - Chaohong Liu
- Department of Microbiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
21
|
Su HC, Jing H, Angelus P, Freeman AF. Insights into immunity from clinical and basic science studies of DOCK8 immunodeficiency syndrome. Immunol Rev 2019; 287:9-19. [PMID: 30565250 PMCID: PMC6350515 DOI: 10.1111/imr.12723] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 12/29/2022]
Abstract
DOCK8 immunodeficiency syndrome (DIDS) is a progressive combined immunodeficiency that can be distinguished from other combined immunodeficiencies or hyperimmunoglobulinemia E syndromes in featuring (a) profound susceptibility to virus infections of the skin, with associated skin cancers, and (b) severe food allergies. The DOCK8 locus has many repetitive sequence elements that predispose to the generation of large germline deletions as well as recombination-mediated somatic DNA repair. Residual DOCK8 protein contributes to the variable disease phenotype. The severe virus infections of the skin, and probably also VZV-associated vasculopathy, reflect an important function of DOCK8, which is normally required to maintain lymphocyte shape integrity as the cells migrate through dense tissues. Loss of DOCK8 also causes immune deficits through other mechanisms including a milder generalized cell survival defect and skewing of T helper cell subsets. Recent work has uncovered the roles for DOCK8 in dendritic cell responses that can also help explain the virus susceptibility, as well as in regulatory T cells that might help explain autoimmunity in a minority of patients. Fortunately, hematopoietic stem cell transplantation cures the eczema and infection susceptibility of DIDS, but not necessarily the other disease manifestations including food allergies.
Collapse
Affiliation(s)
- Helen C. Su
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health
| | - Huie Jing
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health
| | - Pam Angelus
- Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health
| | - Alexandra F. Freeman
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health
| |
Collapse
|