1
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Hsu H, Zanettini C, Coker M, Boudova S, Rach D, Mvula G, Divala TH, Mungwira RG, Boldrin F, Degiacomi G, Mazzabò LC, Manganelli R, Laufer MK, Zhang Y, Marchionni L, Cairo C. Concomitant assessment of PD-1 and CD56 expression identifies subsets of resting cord blood Vδ2 T cells with disparate cytotoxic potential. Cell Immunol 2024; 395-396:104797. [PMID: 38157646 DOI: 10.1016/j.cellimm.2023.104797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/17/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Vγ9Vδ2 T lymphocytes are programmed for broad antimicrobial responses with rapid production of Th1 cytokines even before birth, and thus thought to play key roles against pathogens in infants. The process regulating Vδ2 cell acquisition of cytotoxic potential shortly after birth remains understudied. We observed that perforin production in cord blood Vδ2 cells correlates with phenotypes defined by the concomitant assessment of PD-1 and CD56. Bulk RNA sequencing of sorted Vδ2 cell fractions indicated that transcripts related to cytotoxic activity and NK function are enriched in the subset with the highest proportion of perforin+ cells. Among differentially expressed transcripts, IRF8, previously linked to CD8 T cell effector differentiation and NK maturation, has the potential to mediate Vδ2 cell differentiation towards cytotoxic effectors. Our current and past results support the hypothesis that distinct mechanisms regulate Vδ2 cell cytotoxic function before and after birth, possibly linked to different levels of microbial exposure.
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Affiliation(s)
- Haoting Hsu
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Claudio Zanettini
- Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Modupe Coker
- Department of Oral Biology, Rutgers School of Dental Medicine, Rutgers State University of New Jersey, Newark, NJ, United States
| | - Sarah Boudova
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
| | - David Rach
- Molecular Microbiology and Immunology Graduate Program, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Godfrey Mvula
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Titus H Divala
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Randy G Mungwira
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Francesca Boldrin
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Giulia Degiacomi
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | | | | | - Miriam K Laufer
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Yuji Zhang
- Division of Biostatistics and Bioinformatics, Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, United States; University of Maryland Marlene and Stewart Greenbaum Comprehensive Cancer Center, Baltimore, MD, United States
| | - Luigi Marchionni
- Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Cristiana Cairo
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States.
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2
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Karunakaran MM, Subramanian H, Jin Y, Mohammed F, Kimmel B, Juraske C, Starick L, Nöhren A, Länder N, Willcox CR, Singh R, Schamel WW, Nikolaev VO, Kunzmann V, Wiemer AJ, Willcox BE, Herrmann T. A distinct topology of BTN3A IgV and B30.2 domains controlled by juxtamembrane regions favors optimal human γδ T cell phosphoantigen sensing. Nat Commun 2023; 14:7617. [PMID: 37993425 PMCID: PMC10665462 DOI: 10.1038/s41467-023-41938-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 09/21/2023] [Indexed: 11/24/2023] Open
Abstract
Butyrophilin (BTN)-3A and BTN2A1 molecules control the activation of human Vγ9Vδ2 T cells during T cell receptor (TCR)-mediated sensing of phosphoantigens (PAg) derived from microbes and tumors. However, the molecular rules governing PAg sensing remain largely unknown. Here, we establish three mechanistic principles of PAg-mediated γδ T cell activation. First, in humans, following PAg binding to the intracellular BTN3A1-B30.2 domain, Vγ9Vδ2 TCR triggering involves the extracellular V-domain of BTN3A2/BTN3A3. Moreover, the localization of both protein domains on different chains of the BTN3A homo-or heteromers is essential for efficient PAg-mediated activation. Second, the formation of BTN3A homo-or heteromers, which differ in intracellular trafficking and conformation, is controlled by molecular interactions between the juxtamembrane regions of the BTN3A chains. Finally, the ability of PAg not simply to bind BTN3A-B30.2, but to promote its subsequent interaction with the BTN2A1-B30.2 domain, is essential for T-cell activation. Defining these determinants of cooperation and the division of labor in BTN proteins improves our understanding of PAg sensing and elucidates a mode of action that may apply to other BTN family members.
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Affiliation(s)
| | - Hariharan Subramanian
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Yiming Jin
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, 06269, USA
| | - Fiyaz Mohammed
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham, UK
| | - Brigitte Kimmel
- University Hospital Wuerzburg, Department of Internal Medicine II and Comprehensive Cancer Center (CCC) Mainfranken Wuerzburg, Wuerzburg, Germany
| | - Claudia Juraske
- Signaling Research Centers BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Centre for Chronic Immunodeficiency (CCI), Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany
| | - Lisa Starick
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Anna Nöhren
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Nora Länder
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Carrie R Willcox
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham, UK
| | - Rohit Singh
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, 06269, USA
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, 06269, USA
- Department of Pharmaceutical Sciences, School of Health Sciences & Technology, Dr. Vishwanath Karad, MIT World peace University, Pune, 411038, India
| | - Wolfgang W Schamel
- Signaling Research Centers BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Centre for Chronic Immunodeficiency (CCI), Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany
| | - Viacheslav O Nikolaev
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | - Volker Kunzmann
- University Hospital Wuerzburg, Department of Internal Medicine II and Comprehensive Cancer Center (CCC) Mainfranken Wuerzburg, Wuerzburg, Germany
| | - Andrew J Wiemer
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, 06269, USA
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, 06269, USA
| | - Benjamin E Willcox
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham, UK
| | - Thomas Herrmann
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany.
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3
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Yuan L, Ma X, Yang Y, Qu Y, Li X, Zhu X, Ma W, Duan J, Xue J, Yang H, Huang JW, Yi S, Zhang M, Cai N, Zhang L, Ding Q, Lai K, Liu C, Zhang L, Liu X, Yao Y, Zhou S, Li X, Shen P, Chang Q, Malwal SR, He Y, Li W, Chen C, Chen CC, Oldfield E, Guo RT, Zhang Y. Phosphoantigens glue butyrophilin 3A1 and 2A1 to activate Vγ9Vδ2 T cells. Nature 2023; 621:840-848. [PMID: 37674084 PMCID: PMC10533412 DOI: 10.1038/s41586-023-06525-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 08/08/2023] [Indexed: 09/08/2023]
Abstract
In both cancer and infections, diseased cells are presented to human Vγ9Vδ2 T cells through an 'inside out' signalling process whereby structurally diverse phosphoantigen (pAg) molecules are sensed by the intracellular domain of butyrophilin BTN3A11-4. Here we show how-in both humans and alpaca-multiple pAgs function as 'molecular glues' to promote heteromeric association between the intracellular domains of BTN3A1 and the structurally similar butyrophilin BTN2A1. X-ray crystallography studies visualized that engagement of BTN3A1 with pAgs forms a composite interface for direct binding to BTN2A1, with various pAg molecules each positioned at the centre of the interface and gluing the butyrophilins with distinct affinities. Our structural insights guided mutagenesis experiments that led to disruption of the intracellular BTN3A1-BTN2A1 association, abolishing pAg-mediated Vγ9Vδ2 T cell activation. Analyses using structure-based molecular-dynamics simulations, 19F-NMR investigations, chimeric receptor engineering and direct measurement of intercellular binding force revealed how pAg-mediated BTN2A1 association drives BTN3A1 intracellular fluctuations outwards in a thermodynamically favourable manner, thereby enabling BTN3A1 to push off from the BTN2A1 ectodomain to initiate T cell receptor-mediated γδ T cell activation. Practically, we harnessed the molecular-glue model for immunotherapeutics design, demonstrating chemical principles for developing both small-molecule activators and inhibitors of human γδ T cell function.
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MESH Headings
- Animals
- Humans
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Butyrophilins/immunology
- Butyrophilins/metabolism
- Camelids, New World/immunology
- Lymphocyte Activation
- Molecular Dynamics Simulation
- Phosphoproteins/immunology
- Phosphoproteins/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Crystallography, X-Ray
- Nuclear Magnetic Resonance, Biomolecular
- Thermodynamics
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Affiliation(s)
- Linjie Yuan
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Xianqiang Ma
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Yunyun Yang
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Yingying Qu
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Xin Li
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Xiaoyu Zhu
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Weiwei Ma
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | | | - Jing Xue
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Haoyu Yang
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Jian-Wen Huang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Simin Yi
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Mengting Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Ningning Cai
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Lin Zhang
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Qingyang Ding
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Kecheng Lai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Chang Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Lilan Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Xinyi Liu
- School of Medicine, Tsinghua University, Beijing, China
| | - Yirong Yao
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Shuqi Zhou
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Xian Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Panpan Shen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Qing Chang
- School of Life Sciences, Tsinghua University, Beijing, China
- Beijing Advanced Innovation Center for Structural Biology, Technology Center for Protein Sciences, Tsinghua University, Beijing, China
| | - Satish R Malwal
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Yuan He
- Research Beyond Borders, Boehringer Ingelheim (China), Shanghai, China
| | - Wenqi Li
- School of Life Sciences, Tsinghua University, Beijing, China
- Beijing Advanced Innovation Center for Structural Biology, Technology Center for Protein Sciences, Tsinghua University, Beijing, China
| | - Chunlai Chen
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Chun-Chi Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China
| | - Eric Oldfield
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Rey-Ting Guo
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China.
| | - Yonghui Zhang
- Tsinghua-Peking Center for Life Sciences, State Key Laboratory of Membrane Biology, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China.
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4
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Nguyen K, Jin Y, Howell M, Hsiao CHC, Wiemer AJ, Vinogradova O. Mutations to the BTN2A1 Linker Region Impact Its Homodimerization and Its Cytoplasmic Interaction with Phospho-Antigen-Bound BTN3A1. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:23-33. [PMID: 37171180 PMCID: PMC10330345 DOI: 10.4049/jimmunol.2200949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/26/2023] [Indexed: 05/13/2023]
Abstract
Intracellular binding of small-molecule phospho-Ags to the HMBPP receptor complex in infected cells leads to extracellular detection by T cells expressing the Vγ9Vδ2 TCR, a noncanonical method of Ag detection. The butyrophilin proteins BTN2A1 and BTN3A1 are part of the complex; however, their precise roles are unclear. We suspected that BTN2A1 and BTN3A1 form a tetrameric (dimer of dimers) structure, and we wanted to probe the importance of the BTN2A1 homodimer. We analyzed mutations to human BTN2A1, using internal domain or full-length BTN2A1 constructs, expressed in Escherichia coli or human K562 cells, that might disrupt its structure and/or function. Although BTN2A1 is a disulfide-linked homodimer, mutation of cysteine residues C247 and C265 did not affect the ability to stimulate T cell IFN-γ production by ELISA. Two mutations of the juxtamembrane region (at EKE282) failed to impact BTN2A1 function. In contrast, single point mutations (L318G and L325G) near the BTN2A1 B30.2 domain blocked phospho-Ag response. Size exclusion chromatography and nuclear magnetic resonance (NMR) experiments showed that the isolated BTN2A1 B30.2 domain is a homodimer, even in the absence of its extracellular and transmembrane region. [31P]-NMR experiments confirmed that HMBPP binds to BTN3A1 but not BTN2A1, and binding abrogates signals from both phosphorus atoms. Furthermore, the BTN2A1 L325G mutation but not the L318G mutation prevents both homodimerization of BTN2A1 internal domain constructs in size exclusion chromatography (and NMR) experiments and their binding to HMBPP-bound BTN3A1 in isothermal titration calorimetry experiments. Together, these findings support the importance of homodimerization within the BTN2A1 internal domain for phospho-Ag detection.
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Affiliation(s)
- Khiem Nguyen
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT
| | - Yiming Jin
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT
| | - Matthew Howell
- Department of Chemistry, University of Connecticut, Storrs, CT
| | | | - Andrew J Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT
- Institute for Systems Genomics, University of Connecticut, Storrs, CT
| | - Olga Vinogradova
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT
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5
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Yang W, Cheng B, Chen P, Sun X, Wen Z, Cheng Y. BTN3A1 promotes tumor progression and radiation resistance in esophageal squamous cell carcinoma by regulating ULK1-mediated autophagy. Cell Death Dis 2022; 13:984. [PMID: 36418890 PMCID: PMC9684582 DOI: 10.1038/s41419-022-05429-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022]
Abstract
Radiotherapy is one of the most effective treatments for esophageal squamous cell carcinoma (ESCC); however, radioresistance is a clinical problem that must urgently be solved. Here, we found that butyrophilin subfamily 3 member A1 (BTN3A1) is upregulated in ESCC tumor tissues compared with nontumor tissues. We also evaluated BTN3A1 expression in patients with ESCC receiving adjuvant radiotherapy. The results demonstrated that BTN3A1 upregulation predicts a poor prognosis for ESCC patients. BTN3A1 overexpression promotes ESCC cell proliferation in vitro and in vivo. Moreover, BTN3A1 knockdown sensitized ESCC cells to radiation. We further explored the mode of death involved in BTN3A1-mediated radioresistance. Previous studies have shown that apoptosis, autophagy, necrosis, pyroptosis and ferroptosis are important for the survival of ESCC cells. We performed an RT-PCR array and western blotting (WB) to identify the mode of death and revealed for the first time that BTN3A1 promotes cell radioresistance by activating autophagy. In addition, by performing immunoprecipitation and mass spectrometry analyses, we found that BTN3A1 regulated the expression of UNC-51-like autophagy activating kinase 1(ULK1) and promoted its phosphorylation to subsequently initiate autophagy. Chromatin immunoprecipitation (ChIP) and luciferase reporter assay results indicated that BTN3A1 is a novel direct target of hypoxia inducible factor-1α (HIF-1α). HIF-1α, a transcription factor, promotes BTN3A1 transcription upon irradiation. Overall, the present study is the first to show that BTN3A1 plays a key role in radioresistance and that targeting BTN3A1 might be a promising strategy to improve radiotherapy efficacy in patients with ESCC.
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Affiliation(s)
- Wenjing Yang
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China ,Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Bo Cheng
- grid.27255.370000 0004 1761 1174Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Cheeloo College of Medicine, Shandong University, 250012 Jinan, Shandong P. R. China
| | - Pengxiang Chen
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China ,Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Xiaozheng Sun
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Zhihua Wen
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
| | - Yufeng Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China
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6
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He Z, Gu J, Luan T, Li H, Li C, Chen Z, Luo E, Wang J, Huang Y, Ding M. Comprehensive analyses of a tumor-infiltrating lymphocytes-related gene signature regarding the prognosis and immunologic features for immunotherapy in bladder cancer on the basis of WGCNA. Front Immunol 2022; 13:973974. [PMID: 36211333 PMCID: PMC9540212 DOI: 10.3389/fimmu.2022.973974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Tumor-infiltrating lymphocyte (TIL) is a class of cells with important immune functions and plays a crucial role in bladder cancer (BCa). Several studies have shown the clinical significance of TIL in predicting the prognosis and immunotherapy efficacy. TIL-related gene module was screened utilizing weighted gene coexpression network analysis. We screened eight TIL-related genes utilizing univariate Cox regression analysis, least absolute shrinkage and selection operator (LASSO) Cox regression analysis, and multivariate Cox regression analysis. Then, we established a TIL-related signature model containing the eight selected genes and subsequently classified all patients into two groups, that is, the high-risk as well as low-risk groups. Gene mutation status, prognosis, immune cell infiltration, immune subtypes, TME, clinical features, and immunotherapy response were assessed among different risk subgroups. The results affirmed that the TIL-related signature model was a reliable predictor of overall survival (OS) for BCa and was determined as an independent risk factor for BCa patients in two cohorts. Moreover, the risk score was substantially linked to age, tumor staging, TNM stage, and pathological grade. And there were different mutational profiles, biological pathways, immune scores, stromal scores, and immune cell infiltration in the tumor microenvironment (TME) between the two risk groups. In particular, immune checkpoint genes’ expression was remarkably different between the two risk groups, with patients belonging to the low-risk group responding better to immune checkpoint inhibition (ICI) therapy. In conclusion, our study demonstrates that the TIL-related model was a reliable signature in anticipating prognosis, immune status, and immunotherapy response, which can help in screening patients who respond to immunotherapy.
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Affiliation(s)
- Zexi He
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jun Gu
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ting Luan
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Haihao Li
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Charles Li
- Zhongke Jianlan Medical Research Institute, Beijing, China
| | - Zhenjie Chen
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Enxiu Luo
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jiansong Wang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yinglong Huang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- *Correspondence: Mingxia Ding, ; Yinglong Huang,
| | - Mingxia Ding
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- Urological Disease Clinical Medical Center of Yunnan Province, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
- *Correspondence: Mingxia Ding, ; Yinglong Huang,
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7
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Hsiao CHC, Wiemer AJ. Generation of effector Vγ9Vδ2 T cells and evaluation of their response to phosphoantigen-loaded cells. STAR Protoc 2022; 3:101422. [PMID: 35677612 PMCID: PMC9168146 DOI: 10.1016/j.xpro.2022.101422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Vγ9Vδ2 T cells are non-canonical T cells that use their T cell receptor to detect phosphoantigens bound to the internal domain of the HMBPP receptor (butyrophilin 3/2A1 complex). This protocol describes the expansion and purification of human effector Vγ9Vδ2 T cells from human buffy coat and describes how to assess their activation by antigen-containing target cells. While specifically focused on cytokine production, this protocol can be readily adapted to evaluate other effector functions of activated Vγ9Vδ2 T cells. For complete details on the use and execution of this protocol, please refer to Hsiao et al. (2022) and Hsiao and Wiemer (2018).
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Affiliation(s)
| | - Andrew J. Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
- Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
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8
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Rudge ES, Chan AHY, Leeper FJ. Prodrugs of pyrophosphates and bisphosphonates: disguising phosphorus oxyanions. RSC Med Chem 2022; 13:375-391. [PMID: 35647550 PMCID: PMC9020613 DOI: 10.1039/d1md00297j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Pyrophosphates have important functions in living systems and thus pyrophosphate-containing molecules and their more stable bisphosphonate analogues have the potential to be used as drugs for treating many diseases including cancer and viral infections. Both pyrophosphates and bisphosphonates are polyanionic at physiological pH and, whilst this is essential for their biological activity, it also limits their use as therapeutic agents. In particular, the high negative charge density of these compounds prohibits cell entry other than by endocytosis, prevents transcellular oral absorption and causes sequestration to bone. Therefore, prodrug strategies have been developed to temporarily disguise the charges of these compounds. This review examines the various systems that have been used to mask the phosphorus-containing moieties of pyrophosphates and bisphosphonates and also illustrates the utility of such prodrugs.
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Affiliation(s)
- Emma S Rudge
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Alex H Y Chan
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Finian J Leeper
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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9
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Liu C, Skorupinska-Tudek K, Eriksson SG, Parmryd I. Potentiating Vγ9Vδ2 T cell proliferation and assessing their cytotoxicity towards adherent cancer cells at the single cell level. Biol Open 2022; 11:274281. [PMID: 34994391 PMCID: PMC8822357 DOI: 10.1242/bio.059049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/09/2021] [Indexed: 11/20/2022] Open
Abstract
Vγ9Vδ2 T cells is the dominant γδ T cell subset in human blood. They are cytotoxic and activated by phosphoantigens whose concentrations are increased in cancer cells, making the cancer cells targets for Vγ9Vδ2 T cell immunotherapy. For successful immunotherapy, it is important both to characterise Vγ9Vδ2 T cell proliferation and optimise the assessment of their cytotoxic potential, which is the aim of this study. We found that supplementation with freshly-thawed human serum potentiated Vγ9Vδ2 T cell proliferation from peripheral mononuclear cells (PBMCs) stimulated with (E)-4-Hydroxy-3-methyl-but-2-enyl diphosphate (HMBPP) and consistently enabled Vγ9Vδ2 T cell proliferation from cryopreserved PBMCs. In cryopreserved PBMCs the proliferation was higher than in freshly prepared PBMCs. In a panel of short-chain prenyl alcohols, monophosphates and diphosphates, most diphosphates and also dimethylallyl monophosphate stimulated Vγ9Vδ2 T cell proliferation. We developed a method where the cytotoxicity of Vγ9Vδ2 T cells towards adherent cells is assessed at the single cell level using flow cytometry, which gives more clear-cut results than the traditional bulk release assays. Moreover, we found that HMBPP enhances the Vγ9Vδ2 T cell cytotoxicity towards colon cancer cells. In summary we have developed an easily interpretable method to assess the cytotoxicity of Vγ9Vδ2 T cells towards adherent cells, found that Vγ9Vδ2 T cell proliferation can be potentiated media-supplementation and how misclassification of non-responders may be avoided. Our findings will be useful in the further development of Vγ9Vδ2 T cell immunotherapy.
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Affiliation(s)
- Chenxiao Liu
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | - Sven-Göran Eriksson
- Department of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ingela Parmryd
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.,Department of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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10
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Hsiao CHC, Nguyen K, Jin Y, Vinogradova O, Wiemer AJ. Ligand-induced interactions between butyrophilin 2A1 and 3A1 internal domains in the HMBPP receptor complex. Cell Chem Biol 2022; 29:985-995.e5. [DOI: 10.1016/j.chembiol.2022.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/30/2021] [Accepted: 01/06/2022] [Indexed: 11/27/2022]
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11
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Tomogane M, Omura M, Sano Y, Shimizu D, Toda Y, Hosogi S, Kimura S, Ashihara E. Expression level of BTN3A1 on the surface of CD14 + monocytes is a potential predictor of γδ T cell expansion efficiency. Biochem Biophys Res Commun 2021; 588:47-54. [PMID: 34952469 DOI: 10.1016/j.bbrc.2021.12.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 12/16/2021] [Indexed: 12/14/2022]
Abstract
Human γδ T cells expressing Vγ9Vδ2 T cell receptors exert a robust response to pathogens and malignant cells. These cells are activated by BTN3A1, which is expressed by pathogen-derived phosphoantigens (pAgs) or host-derived pAgs that accumulate in transformed cells or in cells exposed to aminobisphosphonates. Activated Vδ2 (+) T cells exert multiple effector functions; therefore, they are a promising candidate for immunotherapy. However, not all donors have γδ T cells with adequate proliferative activity. Here, we performed ex vivo culture of γδ T cells from 20 healthy donors and explored factors that may affect their expansion efficiency. Consistent with previous studies, we found that amplification of γδ T cells requires CD14+ monocytes to act as accessory cells. We also show here that surface expression of BTN3A1 by monocytes correlates positively with γδ T cell expansion. Moreover, treatment with BTN3A1-Fc increased the expansion efficiency of peripheral blood mononuclear cells (PBMCs) from donors harboring γδ T cells with poor expansion capacity. Taken together, the data suggest that the level of BTN3A1 expressed on the surface of monocytes is a useful biomarker for predicting the degree of expansion of γδ T cells.
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Affiliation(s)
- Mako Tomogane
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Maho Omura
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Yusuke Sano
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Daiki Shimizu
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Yuki Toda
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Shigekuni Hosogi
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga, Japan
| | - Eishi Ashihara
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi, Yamashina, Kyoto, Japan.
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12
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Our evolving understanding of the role of the γδ T cell receptor in γδ T cell mediated immunity. Biochem Soc Trans 2021; 49:1985-1995. [PMID: 34515758 PMCID: PMC8589442 DOI: 10.1042/bst20200890] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 01/13/2023]
Abstract
The γδ T cell immune cell lineage has remained relatively enigmatic and under-characterised since their identification. Conversely, the insights we have, highlight their central importance in diverse immunological roles and homeostasis. Thus, γδ T cells are considered as potentially a new translational tool in the design of new therapeutics for cancer and infectious disease. Here we review our current understanding of γδ T cell biology viewed through a structural lens centred on the how the γδ T cell receptor mediates ligand recognition. We discuss the limited knowledge of antigens, the structural basis of such reactivities and discuss the emerging trends of γδ T cell reactivity and implications for γδ T cell biology.
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13
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Nada MH, Wang H, Hussein AJ, Tanaka Y, Morita CT. PD-1 checkpoint blockade enhances adoptive immunotherapy by human Vγ2Vδ2 T cells against human prostate cancer. Oncoimmunology 2021; 10:1989789. [PMID: 34712512 PMCID: PMC8547840 DOI: 10.1080/2162402x.2021.1989789] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Human Vγ2Vδ2 (also termed Vγ9Vδ2) T cells play important roles in microbial and tumor immunity by monitoring foreign- and self-prenyl pyrophosphate metabolites in isoprenoid biosynthesis. Accumulation of isoprenoid metabolites after bisphosphonate treatment allows Vγ2Vδ2 T cells to recognize and kill tumors independently of their MHC expression or burden of non-synonymous mutations. Clinical trials with more than 400 patients show that adoptive immunotherapy with Vγ2Vδ2 T cells has few side effects but has resulted in only a few partial and complete remissions. Here, we have tested Vγ2Vδ2 T cells for expression of inhibitory receptors and determined whether adding PD-1 checkpoint blockade to adoptively transferred Vγ2Vδ2 T cells enhances immunity to human PC-3 prostate tumors in an NSG mouse model. We find that Vγ2Vδ2 T cells express PD-1, CTLA-4, LAG-3, and TIM-3 inhibitory receptors during the 14-day ex vivo expansion period, and PD-1, LAG-3, and TIM-3 upon subsequent stimulation by pamidronate-treated tumor cells. Expression of PD-L1 on PC-3 prostate cancer cells was increased by co-culture with activated Vγ2Vδ2 T cells. Importantly, anti-PD-1 mAb treatment enhanced Vγ2Vδ2 T cell immunity to PC-3 tumors in immunodeficient NSG mice, reducing tumor volume nearly to zero after 5 weeks. These results demonstrate that PD-1 checkpoint blockade can enhance the effectiveness of adoptive immunotherapy with human γδ T cells in treating prostate tumors in a preclinical model.
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Affiliation(s)
- Mohanad H Nada
- Department of Veterans Affairs, Iowa City Veterans Health Care System, Iowa City, IA, USA.,Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA.,Department of Pathology, College of Medicine, Tikrit University, Tikrit, Iraq.,Department of Medical and Health Sciences, The American University of Iraq, Sulaimani, Sulaymaniah, Iraq
| | - Hong Wang
- Department of Veterans Affairs, Iowa City Veterans Health Care System, Iowa City, IA, USA.,Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Auter J Hussein
- Department of Veterans Affairs, Iowa City Veterans Health Care System, Iowa City, IA, USA.,Salah Al-Din Directorate of Health, Ministry of Health, Iraq
| | - Yoshimasa Tanaka
- Center for Medical Innovation, Nagasaki University, Nagasaki Japan
| | - Craig T Morita
- Department of Veterans Affairs, Iowa City Veterans Health Care System, Iowa City, IA, USA.,Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA.,Interdisciplinary Graduate Program in Immunology,University of Iowa Carver College of Medicine, Iowa City, IA, USA
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14
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Alice AF, Kramer G, Bambina S, Bahjat KS, Gough MJ, Crittenden MR. Listeria monocytogenes-infected human monocytic derived dendritic cells activate Vγ9Vδ2 T cells independently of HMBPP production. Sci Rep 2021; 11:16347. [PMID: 34381163 PMCID: PMC8358051 DOI: 10.1038/s41598-021-95908-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/26/2021] [Indexed: 12/28/2022] Open
Abstract
Gamma-delta (γδ) T cells express T cell receptors (TCR) that are preconfigured to recognize signs of pathogen infection. In primates, γδ T cells expressing the Vγ9Vδ2 TCR innately recognize (E)-4-hydroxy-3-methyl-but- 2-enyl pyrophosphate (HMBPP), a product of the 2-C-methyl-D-erythritol 4- phosphate (MEP) pathway in bacteria that is presented in infected cells via interaction with members of the B7 family of costimulatory molecules butyrophilin (BTN) 3A1 and BTN2A1. In humans, Listeria monocytogenes (Lm) vaccine platforms have the potential to generate potent Vγ9Vδ2 T cell recognition. To evaluate the activation of Vγ9Vδ2 T cells by Lm-infected human monocyte-derived dendritic cells (Mo-DC) we engineered Lm strains that lack components of the MEP pathway. Direct infection of Mo-DC with these bacteria were unchanged in their ability to activate CD107a expression in Vγ9Vδ2 T cells despite an inability to synthesize HMBPP. Importantly, functional BTN3A1 was essential for this activation. Unexpectedly, we found that cytoplasmic entry of Lm into human dendritic cells resulted in upregulation of cholesterol metabolism in these cells, and the effect of pathway regulatory drugs suggest this occurs via increased synthesis of the alternative endogenous Vγ9Vδ2 ligand isoprenyl pyrophosphate (IPP) and/or its isomer dimethylallyl pyrophosphate (DMAPP). Thus, following direct infection, host pathways regulated by cytoplasmic entry of Lm can trigger Vγ9Vδ2 T cell recognition of infected cells without production of the unique bacterial ligand HMBPP.
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Affiliation(s)
- Alejandro F Alice
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA
| | - Gwen Kramer
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA
| | - Shelly Bambina
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA
| | - Keith S Bahjat
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA.,Astellas Pharma US, 100 Kimball Way, South San Francisco, CA, 94080, USA
| | - Michael J Gough
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA
| | - Marka R Crittenden
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, 4805 NE Glisan St, Portland, OR, 97213, USA. .,The Oregon Clinic, Portland, OR, 97213, USA.
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15
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Targeting butyrophilins for cancer immunotherapy. Trends Immunol 2021; 42:670-680. [PMID: 34253468 DOI: 10.1016/j.it.2021.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/11/2021] [Accepted: 06/11/2021] [Indexed: 01/06/2023]
Abstract
Vγ9Vδ2+ T cells form part of the innate immune repertoire and are activated by phosphorylated antigens produced by many bacteria and tumors. They have long been suggested as promising targets for anti-tumor therapies, but clinical trials so far have not shown major successes. Several recent discoveries could help to overcome these shortfalls, such as those leading to an improved understanding of the role of butyrophilin molecules BTN2A1 and BTN3A1, in Vγ9Vδ2+ T cell activation. Moreover, we propose that studies suggesting the presence of live bacteria in a variety of tumors (tumor microbiome), indicate that the latter might be harnessed as a source of high affinity bacterial phosphoantigen to trigger or enhance anti-tumor immune responses.
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16
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Chen S, Li Z, Huang W, Wang Y, Fan S. Prognostic and Therapeutic Significance of BTN3A Proteins in Tumors. J Cancer 2021; 12:4505-4512. [PMID: 34149914 PMCID: PMC8210570 DOI: 10.7150/jca.57831] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/09/2021] [Indexed: 02/07/2023] Open
Abstract
The Butyrophilin 3A (BTN3A) family is a type I transmembrane protein belonging to the immunoglobulin (Ig) superfamily. The family contains three members: BTN3A1, BTN3A2 and BTN3A3, which share 95% homology in the extracellular domain. The expression of BTN3A family members is different in different types of tumors, which plays an important role in tumor prognosis. Among them, there are many studies on tumor immunity of BTN3A1, which shows that it is essential for the activation of Vγ9Vδ2 T cells, while BTN3A3 is expected to become a potential therapeutic target for breast cancer. Recent studies have shown that the BTN3A family is closely related to the occurrence and development of tumors. Now the BTN3A family has become one of the research hotspots and is expected to become new tumor prediction and treatment targets.
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Affiliation(s)
- Sihan Chen
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, China.,College of Health Science, Jiangsu Normal University, Xuzhou, Jiangsu, China
| | - Zhangyun Li
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, China
| | - Wenyi Huang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, China
| | - Yanyan Wang
- Department of Ultrasonic Medicine, Xuzhou First People's Hospital, Jiangsu, China
| | - Shaohua Fan
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, China
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17
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Li Y, Li G, Zhang J, Wu X, Chen X. The Dual Roles of Human γδ T Cells: Anti-Tumor or Tumor-Promoting. Front Immunol 2021; 11:619954. [PMID: 33664732 PMCID: PMC7921733 DOI: 10.3389/fimmu.2020.619954] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/29/2020] [Indexed: 12/24/2022] Open
Abstract
γδ T cells are the unique T cell subgroup with their T cell receptors composed of γ chain and δ chain. Unlike αβ T cells, γδ T cells are non-MHC-restricted in recognizing tumor antigens, and therefore defined as innate immune cells. Activated γδ T cells can promote the anti-tumor function of adaptive immune cells. They are considered as a bridge between adaptive immunity and innate immunity. However, several other studies have shown that γδ T cells can also promote tumor progression by inhibiting anti-tumor response. Therefore, γδ T cells may have both anti-tumor and tumor-promoting effects. In order to clarify this contradiction, in this review, we summarized the functions of the main subsets of human γδ T cells in how they exhibit their respective anti-tumor or pro-tumor effects in cancer. Then, we reviewed recent γδ T cell-based anti-tumor immunotherapy. Finally, we summarized the existing problems and prospect of this immunotherapy.
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Affiliation(s)
- Yang Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Gen Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jian Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaoli Wu
- School of Life Sciences, Tian Jin University, Tian Jin, China
| | - Xi Chen
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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18
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Castro CD, Boughter CT, Broughton AE, Ramesh A, Adams EJ. Diversity in recognition and function of human γδ T cells. Immunol Rev 2020; 298:134-152. [PMID: 33136294 DOI: 10.1111/imr.12930] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/17/2020] [Accepted: 09/29/2020] [Indexed: 12/15/2022]
Abstract
As interest increases in harnessing the potential power of tissue-resident cells for human health and disease, γδ T cells have been thrust into the limelight due to their prevalence in peripheral tissues, their sentinel-like phenotypes, and their unique antigen recognition capabilities. This review focuses primarily on human γδ T cells, highlighting their distinctive characteristics including antigen recognition, function, and development, with an emphasis on where they differ from their αβ T cell comparators, as well as from γδ T cell populations in the mouse. We review the antigens that have been identified thus far to regulate members of the human Vδ1 population and discuss what players are involved in transducing phosphoantigen-mediated signals to human Vγ9Vδ2 T cells. We also briefly review distinguishing features of these cells in terms of TCR signaling, use of coreceptor and costimulatory molecules and their development. These cells have great potential to be harnessed in a clinical setting, but caution must be taken to understand their unique capabilities and how they differ from the populations to which they are commonly compared.
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Affiliation(s)
- Caitlin D Castro
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Christopher T Boughter
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
- Graduate Program in Biophysical Sciences, University of Chicago, Chicago, IL, USA
| | - Augusta E Broughton
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | - Amrita Ramesh
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
- Interdisciplinary Scientist Training Program, University of Chicago, Chicago, IL, USA
| | - Erin J Adams
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
- Graduate Program in Biophysical Sciences, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
- Interdisciplinary Scientist Training Program, University of Chicago, Chicago, IL, USA
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19
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Willcox CR, Mohammed F, Willcox BE. The distinct MHC-unrestricted immunobiology of innate-like and adaptive-like human γδ T cell subsets-Nature's CAR-T cells. Immunol Rev 2020; 298:25-46. [PMID: 33084045 DOI: 10.1111/imr.12928] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/04/2020] [Accepted: 09/08/2020] [Indexed: 12/29/2022]
Abstract
Distinct innate-like and adaptive-like immunobiological paradigms are emerging for human γδ T cells, supported by a combination of immunophenotypic, T cell receptor (TCR) repertoire, functional, and transcriptomic data. Evidence of the γδ TCR/ligand recognition modalities that respective human subsets utilize is accumulating. Although many questions remain unanswered, one superantigen-like modality features interactions of germline-encoded regions of particular TCR Vγ regions with specific BTN/BTNL family members and apparently aligns with an innate-like biology, albeit with some scope for clonal amplification. A second involves CDR3-mediated γδ TCR interaction with diverse ligands and aligns with an adaptive-like biology. Importantly, these unconventional modalities provide γδ T cells with unique recognition capabilities relative to αβ T cells, B cells, and NK cells, allowing immunosurveillance for signatures of "altered self" on target cells, via a membrane-linked γδ TCR recognizing intact non-MHC proteins on the opposing cell surface. In doing so, they permit cellular responses in diverse situations including where MHC expression is compromised, or where conventional adaptive and/or NK cell-mediated immunity is suppressed. γδ T cells may therefore utilize their TCR like a cell-surface Fab repertoire, somewhat analogous to engineered chimeric antigen receptor T cells, but additionally integrating TCR signaling with parallel signals from other surface immunoreceptors, making them multimolecular sensors of cellular stress.
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Affiliation(s)
- Carrie R Willcox
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, UK
| | - Fiyaz Mohammed
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, UK
| | - Benjamin E Willcox
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.,Cancer Immunology and Immunotherapy Centre, University of Birmingham, Birmingham, UK
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20
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Uldrich AP, Rigau M, Godfrey DI. Immune recognition of phosphoantigen-butyrophilin molecular complexes by γδ T cells. Immunol Rev 2020; 298:74-83. [PMID: 33017054 DOI: 10.1111/imr.12923] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/22/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022]
Abstract
Gamma-delta (γδ) T cells are an important component of the immune system. They are often enriched in non-lymphoid tissues and exhibit diverse functional attributes including rapid activation, cytokine production, proliferation, and acquisition of cytotoxicity following both TCR-dependent and TCR-independent stimulation, but poor capacity for immunological memory. They can detect a broad range of antigens, although typically not peptide-MHC complexes in contrast to alpha-beta (αβ) T cells. In humans, a prominent population of γδ T cells, defined as Vγ9Vδ2+ cells, reacts to small phosphorylated non-peptide "phosphoantigens" (pAgs). The molecular mechanism underpinning this recognition is poorly defined, but is known to involve butyrophilin family members and appears to involve indirect pAg recognition via alterations to butyrophilin molecular complexes. In this review, we discuss recent advances in our understanding of pAg recognition by γδ T cells including the role of butyrophilins and in particular, a newly described role for butyrophilin 2A1.
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Affiliation(s)
- Adam P Uldrich
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Melbourne, Vic., Australia
| | - Marc Rigau
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Institute of Experimental Immunology at the University Clinic of the Rheinische Friedrich-Wilhelms, University of Bonn, Bonn, Germany
| | - Dale I Godfrey
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Melbourne, Vic., Australia
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21
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Kadri H, Taher TE, Xu Q, Sharif M, Ashby E, Bryan RT, Willcox BE, Mehellou Y. Aryloxy Diester Phosphonamidate Prodrugs of Phosphoantigens (ProPAgens) as Potent Activators of Vγ9/Vδ2 T-Cell Immune Responses. J Med Chem 2020; 63:11258-11270. [PMID: 32930595 PMCID: PMC7549095 DOI: 10.1021/acs.jmedchem.0c01232] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Vγ9/Vδ2 T-cells are activated by pyrophosphate-containing small molecules known as phosphoantigens (PAgs). The presence of the pyrophosphate group in these PAgs has limited their drug-like properties because of its instability and polar nature. In this work, we report a novel and short Grubbs olefin metathesis-mediated synthesis of methylene and difluoromethylene monophosphonate derivatives of the PAg (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate (HMBP) as well as their aryloxy diester phosphonamidate prodrugs, termed ProPAgens. These prodrugs showed excellent stability in human serum (t1/2 > 12 h) and potent activation of Vγ9/Vδ2 T-cells (EC50 ranging from 5 fM to 73 nM), which translated into sub-nanomolar γδ T-cell-mediated eradication of bladder cancer cells in vitro. Additionally, a combination of in silico and in vitro enzymatic assays demonstrated the metabolism of these phosphonamidates to release the unmasked PAg monophosphonate species. Collectively, this work establishes HMBP monophosphonate ProPAgens as ideal candidates for further investigation as novel cancer immunotherapeutic agents.
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Affiliation(s)
- Hachemi Kadri
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Taher E Taher
- Cancer Immunology and Immunotherapy Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.,Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Qin Xu
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Maria Sharif
- Cancer Immunology and Immunotherapy Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.,Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Elizabeth Ashby
- Cancer Immunology and Immunotherapy Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.,Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Richard T Bryan
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Benjamin E Willcox
- Cancer Immunology and Immunotherapy Centre, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.,Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Youcef Mehellou
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff CF10 3NB, U.K
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22
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Deseke M, Prinz I. Ligand recognition by the γδ TCR and discrimination between homeostasis and stress conditions. Cell Mol Immunol 2020; 17:914-924. [PMID: 32709926 PMCID: PMC7608190 DOI: 10.1038/s41423-020-0503-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/22/2020] [Indexed: 12/19/2022] Open
Abstract
T lymphocytes comprise cells expressing either an αβ or a γδ TCR. The riddle how αβ TCRs are triggered by specific peptides presented in the context of MHC was elucidated some time ago. In contrast, the mechanisms that underlie antigen recognition by γδ TCRs are still baffling the scientific community. It is clear that activation of γδ TCRs does not necessarily depend on MHC antigen presentation. To date, diverse and largely host-cell-derived molecules have been identified as cognate antigens for the γδ TCR. However, for most γδ TCRs, the activating ligand is still unknown and many open questions with regard to physiological relevance and generalizable concepts remain. Especially the question of how γδ T cells can distinguish homeostatic from stress conditions via their TCR remains largely unresolved. Recent discoveries in the field might have paved the way towards a better understanding of antigen recognition by the γδ TCR and have made it conceivable to revise the current knowledge and contextualize the new findings.
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Affiliation(s)
- Malte Deseke
- Institute of Immunology, Hannover Medical School, 30625, Hannover, Germany
| | - Immo Prinz
- Institute of Immunology, Hannover Medical School, 30625, Hannover, Germany.
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23
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Cooper AJR, Lalor SJ, McLoughlin RM. Activation of Human Vδ2 + γδ T Cells by Staphylococcus aureus Promotes Enhanced Anti-Staphylococcal Adaptive Immunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 205:1039-1049. [PMID: 32651220 PMCID: PMC7416323 DOI: 10.4049/jimmunol.2000143] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022]
Abstract
Murine studies have shown the potential for γδ T cells to mediate immunity to Staphylococcus aureus in multiple tissue settings by the secretion of diverse cytokines. However, the role played by γδ T cells in human immune responses to S. aureus is almost entirely unknown. In this study, we establish the capacity of human Vδ2+ γδ T cells for rapid activation in response to S. aureus In coculture with S. aureus-infected monocyte-derived dendritic cells (DCs), Vδ2+ cells derived from peripheral blood rapidly upregulate CD69 and secrete high levels of IFN-γ. DCs mediate this response through direct contact and IL-12 secretion. In turn, IFN-γ released by Vδ2+ cells upregulates IL-12 secretion by DCs in a positive feedback loop. Furthermore, coculture with γδ T cells results in heightened expression of the costimulatory molecule CD86 and the lymph node homing molecule CCR7 on S. aureus-infected DCs. In cocultures of CD4+ T cells with S. aureus-infected DCs, the addition of γδ T cells results in heightened CD4+ T cell activation. Our findings identify γδ T cells as potential key players in the early host response to S. aureus during bloodstream infection, promoting enhanced responses by both innate and adaptive immune cell populations, and support their consideration in the development of host-directed anti-S. aureus treatments.
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Affiliation(s)
- Andrew J R Cooper
- Host Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Dublin 2, Ireland
| | - Stephen J Lalor
- Host Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Dublin 2, Ireland
| | - Rachel M McLoughlin
- Host Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Dublin 2, Ireland
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24
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An Update on the Molecular Basis of Phosphoantigen Recognition by Vγ9Vδ2 T Cells. Cells 2020; 9:cells9061433. [PMID: 32527033 PMCID: PMC7348870 DOI: 10.3390/cells9061433] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 01/29/2023] Open
Abstract
About 1-5% of human blood T cells are Vγ9Vδ2 T cells. Their hallmark is the expression of T cell antigen receptors (TCR) whose γ-chains contain a rearrangement of Vγ9 with JP (TRGV9JP or Vγ2Jγ1.2) and are paired with Vδ2 (TRDV2)-containing δ-chains. These TCRs respond to phosphoantigens (PAg) such as (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate (HMBPP), which is found in many pathogens, and isopentenyl pyrophosphate (IPP), which accumulates in certain tumors or cells treated with aminobisphosphonates such as zoledronate. Until recently, these cells were believed to be restricted to primates, while no such cells are found in rodents. The identification of three genes pivotal for PAg recognition encoding for Vγ9, Vδ2, and butyrophilin (BTN) 3 in various non-primate species identified candidate species possessing PAg-reactive Vγ9Vδ2 T cells. Here, we review the current knowledge of the molecular basis of PAg recognition. This not only includes human Vγ9Vδ2 T cells and the recent discovery of BTN2A1 as Vγ9-binding protein mandatory for the PAg response but also insights gained from the identification of functional PAg-reactive Vγ9Vδ2 T cells and BTN3 in the alpaca and phylogenetic comparisons. Finally, we discuss models of the molecular basis of PAg recognition and implications for the development of transgenic mouse models for PAg-reactive Vγ9Vδ2 T cells.
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25
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Fichtner AS, Bubke A, Rampoldi F, Wilharm A, Tan L, Steinbrück L, Schultze-Florey C, von Kaisenberg C, Prinz I, Herrmann T, Ravens S. TCR repertoire analysis reveals phosphoantigen-induced polyclonal proliferation of Vγ9Vδ2 T cells in neonates and adults. J Leukoc Biol 2020; 107:1023-1032. [PMID: 32064671 DOI: 10.1002/jlb.1ma0120-427rr] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/22/2020] [Accepted: 01/29/2020] [Indexed: 01/14/2023] Open
Abstract
The Vγ9Vδ2 T cell subset is the major γδ T cell subset in human peripheral blood and has the unique ability to contribute to immune surveillance by detecting pyrophosphorylated metabolites of isoprenoid synthesis, termed phosphoantigens (pAgs). Vγ9Vδ2 T cells are first detected at midgestation and show postnatal expansion. Interestingly, neonatal Vγ9Vδ2 T cells display a higher TCR repertoire diversity with more public clonotypes and lower pAg responsiveness than in adults. Notably, it is not known whether postnatal changes occur by TCR-dependent reactivity to pAg exposure. Here, we applied next-generation sequencing of γδ TCR repertoires to understand potential differences in the pAg-mediated response of neonatal and adult Vγ9Vδ2 T cells at the level of the expressed γδ TCR. We observed a polyclonal pAg-induced response of neonatal and adult Vγ9Vδ2 T cells, albeit neonatal γδ T cells showed less in vitro pAg responsiveness. Neonatal Vγ9Vδ2 T cells displayed a less pronounced bias for Jδ1 usage and a more frequent use of Jδ2 or Jδ3 that remained stable after pAg exposure. In addition, public and private Vδ2 TRD clones took part in the polyclonal pAg-induced response in neonates and adults. In conclusion, adult and neonatal Vγ9Vδ2 T cells both undergo polyclonal pAg-induced proliferation, whereas especially adult Vγ9Vδ2 T cells display a high stability at the level of the expressed TCR repertoire.
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Affiliation(s)
- Alina S Fichtner
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Anja Bubke
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | | | - Anneke Wilharm
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Likai Tan
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Lars Steinbrück
- Institute of Virology, Hannover Medical School, Hannover, Germany
| | | | | | - Immo Prinz
- Institute of Immunology, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Thomas Herrmann
- Department of Virology and Immunology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Sarina Ravens
- Institute of Immunology, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
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26
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Hayday AC. γδ T Cell Update: Adaptate Orchestrators of Immune Surveillance. THE JOURNAL OF IMMUNOLOGY 2020; 203:311-320. [PMID: 31285310 DOI: 10.4049/jimmunol.1800934] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 05/02/2019] [Indexed: 12/15/2022]
Abstract
As interest in γδ T cells grows rapidly, what key points are emerging, and where is caution warranted? γδ T cells fulfill critical functions, as reflected in associations with vaccine responsiveness and cancer survival in humans and ever more phenotypes of γδ T cell-deficient mice, including basic physiological deficiencies. Such phenotypes reflect activities of distinct γδ T cell subsets, whose origins offer interesting insights into lymphocyte development but whose variable evolutionary conservation can obfuscate translation of knowledge from mice to humans. By contrast, an emerging and conserved feature of γδ T cells is their "adaptate" biology: an integration of adaptive clonally-restricted specificities, innate tissue-sensing, and unconventional recall responses that collectively strengthen host resistance to myriad challenges. Central to adaptate biology are butyrophilins and other γδ cell regulators, the study of which should greatly enhance our understanding of tissue immunogenicity and immunosurveillance and guide intensifying clinical interest in γδ cells and other unconventional lymphocytes.
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Affiliation(s)
- Adrian C Hayday
- Peter Gorer Department of Immunobiology, King's College London, London SE1 9RT, United Kingdom; and Francis Crick Institute, London NW1 1AT, United Kingdom
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27
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Antonelli LR, Junqueira C, Vinetz JM, Golenbock DT, Ferreira MU, Gazzinelli RT. The immunology of Plasmodium vivax malaria. Immunol Rev 2019; 293:163-189. [PMID: 31642531 DOI: 10.1111/imr.12816] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022]
Abstract
Plasmodium vivax infection, the predominant cause of malaria in Asia and Latin America, affects ~14 million individuals annually, with considerable adverse effects on wellbeing and socioeconomic development. A clinical hallmark of Plasmodium infection, the paroxysm, is driven by pyrogenic cytokines produced during the immune response. Here, we review studies on the role of specific immune cell types, cognate innate immune receptors, and inflammatory cytokines on parasite control and disease symptoms. This review also summarizes studies on recurrent infections in individuals living in endemic regions as well as asymptomatic infections, a serious barrier to eliminating this disease. We propose potential mechanisms behind these repeated and subclinical infections, such as poor induction of immunological memory cells and inefficient T effector cells. We address the role of antibody-mediated resistance to P. vivax infection and discuss current progress in vaccine development. Finally, we review immunoregulatory mechanisms, such as inhibitory receptors, T regulatory cells, and the anti-inflammatory cytokine, IL-10, that antagonizes both innate and acquired immune responses, interfering with the development of protective immunity and parasite clearance. These studies provide new insights for the clinical management of symptomatic as well as asymptomatic individuals and the development of an efficacious vaccine for vivax malaria.
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Affiliation(s)
- Lis R Antonelli
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Caroline Junqueira
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Joseph M Vinetz
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Douglas T Golenbock
- Division of Infectious Disease and immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Marcelo U Ferreira
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Ricardo T Gazzinelli
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil.,Division of Infectious Disease and immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.,Plataforma de Medicina Translacional, Fundação Oswaldo Cruz, Ribeirão Preto, Brazil
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28
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Raverdeau M, Cunningham SP, Harmon C, Lynch L. γδ T cells in cancer: a small population of lymphocytes with big implications. Clin Transl Immunology 2019; 8:e01080. [PMID: 31624593 PMCID: PMC6787154 DOI: 10.1002/cti2.1080] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/02/2019] [Accepted: 09/02/2019] [Indexed: 12/24/2022] Open
Abstract
γδ T cells are a small population of mostly tissue-resident lymphocytes, with both innate and adaptive properties. These unique features make them particularly attractive candidates for the development of new cellular therapy targeted against tumor development. Nevertheless, γδ T cells may play dual roles in cancer, promoting cancer development on the one hand, while participating in antitumor immunity on the other hand. In mice, γδ T-cell subsets preferentially produce IL-17 or IFN-γ. While antitumor functions of murine γδ T cells can be attributed to IFN-γ+ γδ T cells, recent studies have implicated IL-17+ γδ T cells in tumor growth and metastasis. However, in humans, IL-17-producing γδ T cells are rare and most studies have attributed a protective role to γδ T cells against cancer. In this review, we will present the current knowledge and most recent findings on γδ T-cell functions in mouse models of tumor development and human cancers. We will also discuss their potential as cellular immunotherapy against cancer.
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Affiliation(s)
- Mathilde Raverdeau
- School of Biochemistry and ImmunologyTrinity College DublinDublinIreland
| | | | - Cathal Harmon
- Harvard Medical SchoolBostonMAUSA
- Brigham and Women's HospitalBostonMAUSA
| | - Lydia Lynch
- School of Biochemistry and ImmunologyTrinity College DublinDublinIreland
- Harvard Medical SchoolBostonMAUSA
- Brigham and Women's HospitalBostonMAUSA
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29
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Lentini NA, Hsiao CHC, Crull GB, Wiemer AJ, Wiemer DF. Synthesis and Bioactivity of the Alanyl Phosphonamidate Stereoisomers Derived from a Butyrophilin Ligand. ACS Med Chem Lett 2019; 10:1284-1289. [PMID: 31531198 DOI: 10.1021/acsmedchemlett.9b00153] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/06/2019] [Indexed: 02/07/2023] Open
Abstract
Aryloxy phosphonamidate derivatives of a butyrophilin 3A1 ligand are stimulants of Vγ9 Vδ2 T cells. However, when bonded to an aryl ester and an amine, the phosphorus is stereogenic, and past compounds were studied as racemates. To determine the impact of stereochemistry on the activity, we now have prepared phosphonate derivatives of l- and d-alanine ethyl ester, separated the diastereomers, and evaluated their biological activity as single stereoisomers. The results demonstrate that phosphonamidates substituted with l-alanine stimulate Vγ9 Vδ2 T cells at lower concentrations than the racemic glycine counterpart, while those derived from d-alanine require higher concentrations. All four diastereomers are more active than charged phosphoantigens such as HMBPP. Surprisingly, only a 2-fold difference was observed between the l-alanine phosphorus isomers, with the R P isomer more potent. This suggests that the small phosphoantigen scaffold reduces but does not eliminate dependence upon phosphorus stereochemistry for cellular activity.
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Affiliation(s)
- Nicholas A. Lentini
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
| | - Chia-Hung Christine Hsiao
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut 06269-3092, United States
| | - George B. Crull
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
| | - Andrew J. Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut 06269-3092, United States
- Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut 06269-3092, United States
| | - David F. Wiemer
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242-1294, United States
- Department of Pharmacology, University of Iowa, Iowa City, Iowa 52242-1109, United States
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30
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Foust BJ, Li J, Hsiao CHC, Wiemer DF, Wiemer AJ. Stability and Efficiency of Mixed Aryl Phosphonate Prodrugs. ChemMedChem 2019; 14:1597-1603. [PMID: 31226236 PMCID: PMC6726502 DOI: 10.1002/cmdc.201900344] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Indexed: 12/16/2022]
Abstract
A set of phosphonate prodrugs of a butyrophilin ligand was synthesized and evaluated for plasma stability and cellular activity. The mixed aryl acyloxy esters were prepared either via a standard sequence through the phosphonic acid chloride, or through the more recently reported, and more facile, triflate activation. In the best of cases, this class of prodrugs shows cellular potency similar to that of bis-acyloxyalkyl phosphonate prodrugs and plasma stability similar to that of aryl phosphonamidates. For example, {[((3E)-5-hydroxy-4-methylpent-3-en-1-yl) (naphthalen-2-yloxy)phosphoryl]oxy}methyl 2,2-dimethylpropanoate can activate BTN3A1 in K562 cells after just 15 minutes of exposure (at an EC50 value of 31 nm) and is only partially metabolized (60 % remaining) after 20 hours in human plasma. Other related novel analogues showed similar potency/stability profiles. Therefore, mixed aryl acyloxyalkyl phosphonate prodrugs are an exciting new strategy for the delivery of phosphonate-containing drugs.
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Affiliation(s)
- Benjamin J Foust
- Department of Chemistry, University of Iowa, E531 Chemistry Building, Iowa City, IA, 52242, USA
| | - Jin Li
- Department of Pharmaceutical Sciences, University of Connecticut, 69 North Eagleville Road, Unit 3092, Storrs, CT, 06269, USA
| | - Chia-Hung Christine Hsiao
- Department of Pharmaceutical Sciences, University of Connecticut, 69 North Eagleville Road, Unit 3092, Storrs, CT, 06269, USA
| | - David F Wiemer
- Department of Chemistry, University of Iowa, E531 Chemistry Building, Iowa City, IA, 52242, USA
| | - Andrew J Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, 69 North Eagleville Road, Unit 3092, Storrs, CT, 06269, USA
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31
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Poe MM, Agabiti SS, Liu C, Li V, Teske KA, Hsiao CHC, Wiemer AJ. Probing the Ligand-Binding Pocket of BTN3A1. J Med Chem 2019; 62:6814-6823. [PMID: 31268699 DOI: 10.1021/acs.jmedchem.9b00825] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Small-molecule phosphoantigens such as (E)-4-hydroxy-3-methyl-but-2-enyl diphosphate stimulate human Vγ9Vδ2 T cells after binding to the intracellular B30.2 domain of the immune receptor butyrophilin 3 isoform A1 (BTN3A1). To understand the ligand-target interaction in greater detail, we performed molecular docking. Based on the docking results, we synthesized the novel ligand (E)-(7-hydroxy-6-methylhept-5-en-1-yl)phosphonate and mutated proposed binding site residues. We evaluated the impact on butyrophilin binding of existing and novel ligands using a newly developed high-throughput fluorescence polarization assay. We also evaluated the ability of the compounds to stimulate proliferation and interferon-γ production of Vγ9Vδ2 T cells. Mutation of H381 fully blocked ligand binding, whereas mutations to charged surface residues impacted diphosphate interactions. Monophosphonate analogs bind similarly to BTN3A1, although they differ in their antigenicity, demonstrating that binding and efficacy are not linearly correlated. These results further define the structure-activity relationships underlying BTN3A1 ligand binding and antigenicity and support further structure-guided drug design.
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Affiliation(s)
| | | | | | | | - Kelly A Teske
- Department of Chemistry , Western Michigan University , Kalamazoo , Michigan 49008 , United States
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32
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Wang H, Nada MH, Tanaka Y, Sakuraba S, Morita CT. Critical Roles for Coiled-Coil Dimers of Butyrophilin 3A1 in the Sensing of Prenyl Pyrophosphates by Human Vγ2Vδ2 T Cells. THE JOURNAL OF IMMUNOLOGY 2019; 203:607-626. [PMID: 31227581 DOI: 10.4049/jimmunol.1801252] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 05/23/2019] [Indexed: 12/25/2022]
Abstract
Vγ2Vδ2 T cells play important roles in human immunity to pathogens and tumors. Their TCRs respond to the sensing of isoprenoid metabolites, such as (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate and isopentenyl pyrophosphate, by butyrophilin (BTN) 3A1. BTN3A1 is an Ig superfamily protein with extracellular IgV/IgC domains and intracellular B30.2 domains that bind prenyl pyrophosphates. We have proposed that intracellular α helices form a coiled-coil dimer that functions as a spacer for the B30.2 domains. To test this, five pairs of anchor residues were mutated to glycine to destabilize the coiled-coil dimer. Despite maintaining surface expression, BTN3A1 mutagenesis either abrogated or decreased stimulation by (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate. BTN3A2 and BTN3A3 proteins and orthologs in alpacas and dolphins are also predicted to have similar coiled-coil dimers. A second short coiled-coil region dimerizes the B30.2 domains. Molecular dynamics simulations predict that mutation of a conserved tryptophan residue in this region will destabilize the dimer, explaining the loss of stimulation by BTN3A1 proteins with this mutation. The juxtamembrane regions of other BTN/BTN-like proteins with B30.2 domains are similarly predicted to assume α helices, with many predicted to form coiled-coil dimers. An exon at the end of this region and the exon encoding the dimerization region for B30.2 domains are highly conserved. We propose that coiled-coil dimers function as rod-like helical molecular spacers to position B30.2 domains, as interaction sites for other proteins, and as dimerization regions to allow sensing by B30.2 domains. In these ways, the coiled-coil domains of BTN3A1 play critical roles for its function.
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Affiliation(s)
- Hong Wang
- Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242.,Department of Veterans Affairs, Iowa City Health Care System, Iowa City, IA 52246
| | - Mohanad H Nada
- Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242.,Department of Veterans Affairs, Iowa City Health Care System, Iowa City, IA 52246.,College of Medicine, Tikrit University, Tiktit, 34001, Iraq
| | - Yoshimasa Tanaka
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan.,Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Shun Sakuraba
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan; and
| | - Craig T Morita
- Division of Immunology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242; .,Department of Veterans Affairs, Iowa City Health Care System, Iowa City, IA 52246.,Interdisciplinary Graduate Program in Immunology, University of Iowa Carver College of Medicine, Iowa City, IA 52242
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33
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Joosten SA, Ottenhoff TH, Lewinsohn DM, Hoft DF, Moody DB, Seshadri C. Harnessing donor unrestricted T-cells for new vaccines against tuberculosis. Vaccine 2019; 37:3022-3030. [PMID: 31040086 PMCID: PMC6525272 DOI: 10.1016/j.vaccine.2019.04.050] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/02/2019] [Accepted: 04/13/2019] [Indexed: 01/14/2023]
Abstract
Mycobacterium bovis bacille Calmette-Guérin (BCG) prevents extrapulmonary tuberculosis (TB) and death among infants but fails to consistently and sufficiently prevent pulmonary TB in adults. Thus, TB remains the leading infectious cause of death worldwide, and new vaccine approaches are urgently needed. T-cells are important for protective immunity to Mycobacterium tuberculosis (Mtb), but the optimal T-cell antigens to be included in new vaccines are not established. T-cells are often thought of as responding mainly to peptide antigens presented by polymorphic major histocompatibility complex (MHC) I and II molecules. Over the past two decades, the number of non-peptidic Mtb derived antigens for αβ and γδ T-cells has expanded rapidly, creating broader perspectives about the types of molecules that could be targeted by T-cell-based vaccines against TB. Many of these non-peptide responsive T-cell subsets in humans are activated in a manner that is unrestricted by classical MHC-dependent antigen-presenting systems, but instead require essentially nonpolymorphic presentation systems. These systems are Cluster of differentiation 1 (CD1), MHC related protein 1 (MR1), butyrophilin 3A1, as well as the nonclassical MHC class Ib family member HLA-E. Thus, the resulting T-cell responses can be shared among a genetically diverse population, creating the concept of donor-unrestricted T-cells (DURTs). Here, we review evidence that DURTs are an abundant component of the human immune system and recognize many antigens expressed by Mtb, including antigens that are expressed in BCG and other candidate whole cell vaccines. Further, DURTs exhibit functional diversity and demonstrate the ability to control microbial infection in small animal models. Finally, we outline specific knowledge gaps and research priorities that must be addressed to realize the full potential of DURTs as part of new TB vaccines approaches.
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Affiliation(s)
- Simone A. Joosten
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Tom H.M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - David M. Lewinsohn
- Department of Medicine, Division of Pulmonary & Critical Care Medicine, Oregon Health Sciences University, Portland, USA
| | - Daniel F. Hoft
- Department of Internal Medicine, Saint Louis University, Doisy Research Center, 8th floor, 1100 S. Grand Blvd., St. Louis, MO 63104, USA
| | - D. Branch Moody
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham & Women’s Hospital, Boston, Harvard Medical School, USA
| | - Chetan Seshadri
- Department of Medicine, Division of Infectious Diseases, University of Washington, Seattle, USA,Tuberculosis Research & Training Center, University of Washington, Seattle, USA,Corresponding author at: University of Washington Medical Center, 750 Republican Street, Room E663, Seattle, WA 98109, USA.
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Granulysin: killer lymphocyte safeguard against microbes. Curr Opin Immunol 2019; 60:19-29. [PMID: 31112765 DOI: 10.1016/j.coi.2019.04.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 12/26/2022]
Abstract
Primary T cell immunodeficiency and HIV-infected patients are plagued by non-viral infections caused by bacteria, fungi, and parasites, suggesting an important and underappreciated role for T lymphocytes in controlling microbes. Here, we review recent studies showing that killer lymphocytes use the antimicrobial cytotoxic granule pore-forming peptide granulysin, induced by microbial exposure, to permeabilize cholesterol-poor microbial membranes and deliver death-inducing granzymes into these pathogens. Granulysin and granzymes cause microptosis, programmed cell death in microbes, by inducing reactive oxygen species and destroying microbial antioxidant defenses and disrupting biosynthetic and central metabolism pathways required for their survival, including protein synthesis, glycolysis, and the Krebs cycle.
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Yang Y, Li L, Yuan L, Zhou X, Duan J, Xiao H, Cai N, Han S, Ma X, Liu W, Chen CC, Wang L, Li X, Chen J, Kang N, Chen J, Shen Z, Malwal SR, Liu W, Shi Y, Oldfield E, Guo RT, Zhang Y. A Structural Change in Butyrophilin upon Phosphoantigen Binding Underlies Phosphoantigen-Mediated Vγ9Vδ2 T Cell Activation. Immunity 2019; 50:1043-1053.e5. [DOI: 10.1016/j.immuni.2019.02.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 10/24/2018] [Accepted: 02/20/2019] [Indexed: 12/26/2022]
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Willcox BE, Willcox CR. γδ TCR ligands: the quest to solve a 500-million-year-old mystery. Nat Immunol 2019; 20:121-128. [PMID: 30664765 DOI: 10.1038/s41590-018-0304-y] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/14/2018] [Indexed: 12/30/2022]
Abstract
γδ T cells have been retained as a lineage over the majority of vertebrate evolution, are able to respond to immune challenges in unique ways, and are of increasing therapeutic interest. However, one central mystery has endured: the identity of the ligands recognized by the γδ T cell antigen receptor. Here we discuss the inherent challenges in answering this question, the new opportunities provided by recent studies, and the criteria by which the field might judge success.
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Affiliation(s)
- Benjamin E Willcox
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.
| | - Carrie R Willcox
- Institute of Immunology and Immunotherapy, Cancer Immunology and Immunotherapy Centre, Cancer Research UK Birmingham Centre, University of Birmingham, Birmingham, UK.
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Expansion and Adoptive Transfer of Human Vδ2 + T Cells to Assess Antitumor Effects In Vivo. Methods Mol Biol 2019; 1884:57-72. [PMID: 30465195 DOI: 10.1007/978-1-4939-8885-3_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Recent clinical trials have yielded promising results suggesting that γδ T cell62-based immunotherapies can be effective against hematological malignancies. Human T cells expressing Vγ9Vδ2+ receptors are particularly attractive candidates for this application, since they can be readily expanded in vitro in large quantities for adoptive transfer and do not require HLA-matching of donors and recipients. While it is well established that Vγ9Vδ2+ T cells are potently cytolytic against many human cancers and it has been shown that they can control transplanted human tumors in xenogeneic model systems, little is known about the parameters that determine the antitumor efficacy of adoptively transferred Vγ9Vδ2+ T cells in physiologically relevant scenarios. In particular, it may be important to separate their immunosurveillance functions from those employed in the context of an established tumor. Moreover, it is critical to understand how the presence of an immunosuppressive environment, such as one where tumor-infiltrating T cells are held in check by inhibitory ligands, affects the functions of Vγ9Vδ2+ T cells. This chapter describes how to establish Epstein-Barr virus (EBV) infection of human umbilical cord blood mononuclear cells (CBMCs) within immunodeficient mice, so as to drive the in vivo formation of human B cell lymphomas that contain an immunosuppressive environment. Details are provided on how to expand human Vγ9Vδ2+ T cells from peripheral blood mononuclear cells (PBMCs), administer them to the mice, and evaluate tumors and other tissues.
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Gu S, Borowska MT, Boughter CT, Adams EJ. Butyrophilin3A proteins and Vγ9Vδ2 T cell activation. Semin Cell Dev Biol 2018; 84:65-74. [PMID: 29471037 PMCID: PMC6129423 DOI: 10.1016/j.semcdb.2018.02.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 12/22/2017] [Accepted: 02/08/2018] [Indexed: 02/07/2023]
Abstract
Despite playing critical roles in the immune response and having significant potential in immunotherapy, γδ T cells have garnered little of the limelight. One major reason for this paradox is that their antigen recognition mechanisms are largely unknown, limiting our understanding of their biology and our potential to modulate their activity. One of the best-studied γδ subsets is the human Vγ9Vδ2T cell population, which predominates in peripheral blood and can combat both microbial infections and cancers. Although it has been known for decades that Vγ9Vδ2T cells respond to the presence of small pyrophosphate-based metabolites, collectively named phosphoantigens (pAgs), derived from microbial sources or malignant cells, the molecular basis for this response has been unclear. A major breakthrough in this area came with the identification of the Butyrophilin 3A (BTN3A) proteins, members of the Butyrophilin/Butyrophilin-like protein family, as mediators between pAgs and Vγ9Vδ2T cells. In this article, we review the most recent studies regarding pAg activation of human Vγ9Vδ2T cells, mainly focusing on the role of BTN3A as the pAg sensing molecule, as well as its potential impact on downstream events of the activation process.
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Affiliation(s)
- Siyi Gu
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA
| | - Marta T Borowska
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA
| | | | - Erin J Adams
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Biophysical Sciences, University of Chicago, Chicago, IL 60637, USA; Committee on Cancer Biology, University of Chicago, Chicago, IL 60637, USA.
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Hsiao CHC, Wiemer AJ. A power law function describes the time- and dose-dependency of Vγ9Vδ2 T cell activation by phosphoantigens. Biochem Pharmacol 2018; 158:298-304. [PMID: 30391478 DOI: 10.1016/j.bcp.2018.10.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/31/2018] [Indexed: 02/08/2023]
Abstract
Phosphoantigens stimulate Vγ9Vδ2 T cells after binding to BTN3A1 in target cells and cell-cell contact. We evaluated phosphoantigens including diphosphates, bisphosphonates, and prodrugs for ability to induce leukemia cells to stimulate Vγ9Vδ2 T cell interferon-γ secretion. Most compounds displayed time-dependent activity at exposure times between 15 and 240 min. Potency (EC50 values) ranged between 8.4 nM and >100 µM. The diphosphate C-HMBPP displayed a shallow dose-response slope (Hill slope = 0.71), while the bisphosphonate slopes were steep (Hill slopes > 2), and the prodrugs intermediate. The bis-acyloxyalkyl POM2-C-HMBP showed low nanomolar potency even at an exposure time of 1 min. Mixed aryl-POM prodrugs also retained excellent potency at 15 min, while aryl-amidates were time dependent below 240 min. The sum of the dose and time logarithms is often constant, while a power law function fits most compounds. Collectively, these findings illustrate the exquisite activity of prodrugs relative to diphosphates and bisphosphonates.
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Affiliation(s)
| | - Andrew J Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA; Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA.
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Dantzler KW, Jagannathan P. γδ T Cells in Antimalarial Immunity: New Insights Into Their Diverse Functions in Protection and Tolerance. Front Immunol 2018; 9:2445. [PMID: 30405634 PMCID: PMC6206268 DOI: 10.3389/fimmu.2018.02445] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 10/03/2018] [Indexed: 12/19/2022] Open
Abstract
Uniquely expressing diverse innate-like and adaptive-like functions, γδ T cells exist as specialized subsets, but are also able to adapt in response to environmental cues. These cells have long been known to rapidly proliferate following primary malaria infection in humans and mice, but exciting new work is shedding light into their diverse functions in protection and following repeated malaria infection. In this review, we examine the current knowledge of functional specialization of γδ T cells in malaria, and the mechanisms dictating recognition of malaria parasites and resulting proliferation. We discuss γδ T cell plasticity, including changing interactions with other immune cells during recurrent infection and potential for immunological memory in response to repeated stimulation. Building on recent insights from human and murine experimental studies and vaccine trials, we propose areas for future research, as well as applications for therapeutic development.
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Vγ9Vδ2 T cells proliferate in response to phosphoantigens released from erythrocytes infected with asexual and gametocyte stage Plasmodium falciparum. Cell Immunol 2018; 334:11-19. [PMID: 30177348 DOI: 10.1016/j.cellimm.2018.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 01/14/2023]
Abstract
Vγ9Vδ2 T cells, the dominant γδ T cell subset in human peripheral blood, are stimulated by phosphoantigens, of which (E)-4-Hydroxy-3-methyl-but-2-enyl pyrophosphate, is produced in the apicoplast of malaria parasites. Cell-free media from synchronised Plasmodium falciparum asexual ring, trophozoite, and schizont stage-cultures of high purity as well as media from ruptured schizont cultures, all stimulated Vγ9Vδ2 T cell proliferation, as did media from pure gametocyte cultures, whereas media from uninfected erythrocytes cultures did not. The media from ruptured schizont cultures and all the asexual and gametocyte stage cultures contained only background iron levels, suggesting that all erythrocyte haemoglobin is consumed as the parasites develop and supporting that the phosphoantigens were released from intact parasitized erythrocytes. The Vγ9Vδ2 T cell-stimulating agent was not affected by freezing, thawing or heating but was sensitive to phosphatase treatment, confirming its phosphoantigen identity. In summary, phosphoantigens are released from parasitised erythrocytes at all developmental blood stages.
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42
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Riganti C, Castella B, Massaia M. ABCA1, apoA-I, and BTN3A1: A Legitimate Ménage à Trois in Dendritic Cells. Front Immunol 2018; 9:1246. [PMID: 29937767 PMCID: PMC6002486 DOI: 10.3389/fimmu.2018.01246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 05/17/2018] [Indexed: 12/11/2022] Open
Abstract
Human Vγ9Vδ2 T cells have the capacity to detect supra-physiological concentrations of phosphoantigens (pAgs) generated by the mevalonate (Mev) pathway of mammalian cells under specific circumstances. Isopentenyl pyrophosphate (IPP) is the prototypic pAg recognized by Vγ9Vδ2 T cells. B-cell derived tumor cells (i.e., lymphoma and myeloma cells) and dendritic cells (DCs) are privileged targets of Vγ9Vδ2 T cells because they generate significant amounts of IPP which can be boosted with zoledronic acid (ZA). ZA is the most potent aminobisphosphonate (NBP) clinically available to inhibit osteoclast activation and a very potent inhibitor of farnesyl pyrophosphate synthase in the Mev pathway. ZA-treated DCs generate and release in the supernatants picomolar IPP concentrations which are sufficient to induce the activation of Vγ9Vδ2 T cells. We have recently shown that the ATP-binding cassette transporter A1 (ABCA1) plays a major role in the extracellular release of IPP from ZA-treated DCs. This novel ABCA1 function is fine-tuned by physical interactions with IPP, apolipoprotein A-I (apoA-I), and butyrophilin-3A1 (BTN3A1). The mechanisms by which soluble IPP induces Vγ9Vδ2 T-cell activation remain to be elucidated. It is possible that soluble IPP binds to BTN3A1, apoA-I, or other unknown molecules on the cell surface of bystander cells like monocytes, NK cells, Vγ9Vδ2 T cells, or any other cell locally present. Investigating this scenario may represent a unique opportunity to further characterize the role of BTN3A1 and other molecules in the recognition of soluble IPP by Vγ9Vδ2 T cells.
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Affiliation(s)
- Chiara Riganti
- Dipartimento di Oncologia, Università degli Studi di Torino, Turin, Italy
| | - Barbara Castella
- Laboratorio di Immunologia dei Tumori del Sangue (LITS), Centro Interdipartimentale di Ricerca in Biologia Molecolare (CIRBM), Università degli Studi di Torino, Turin, Italy
| | - Massimo Massaia
- Laboratorio di Immunologia dei Tumori del Sangue (LITS), Centro Interdipartimentale di Ricerca in Biologia Molecolare (CIRBM), Università degli Studi di Torino, Turin, Italy.,SC Ematologia, AO S. Croce e Carle, Cuneo, Italy
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Pauza CD, Liou ML, Lahusen T, Xiao L, Lapidus RG, Cairo C, Li H. Gamma Delta T Cell Therapy for Cancer: It Is Good to be Local. Front Immunol 2018; 9:1305. [PMID: 29937769 PMCID: PMC6003257 DOI: 10.3389/fimmu.2018.01305] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/25/2018] [Indexed: 12/28/2022] Open
Abstract
Human gamma delta T cells have extraordinary properties including the capacity for tumor cell killing. The major gamma delta T cell subset in human beings is designated Vγ9Vδ2 and is activated by intermediates of isoprenoid biosynthesis or aminobisphosphonate inhibitors of farnesyldiphosphate synthase. Activated cells are potent for killing a broad range of tumor cells and demonstrated the capacity for tumor reduction in murine xenotransplant tumor models. Translating these findings to the clinic produced promising initial results but greater potency is needed. Here, we review the literature on gamma delta T cells in cancer therapy with emphasis on the Vγ9Vδ2 T cell subset. Our goal was to examine obstacles preventing effective Vγ9Vδ2 T cell therapy and strategies for overcoming them. We focus on the potential for local activation of Vγ9Vδ2 T cells within the tumor environment to increase potency and achieve objective responses during cancer therapy. The gamma delta T cells and especially the Vγ9Vδ2 T cell subset, have the potential to overcome many problems in cancer therapy especially for tumors with no known treatment, lacking tumor-specific antigens for targeting by antibodies and CAR-T, or unresponsive to immune checkpoint inhibitors. Translation of amazing work from many laboratories studying gamma delta T cells is needed to fulfill the promise of effective and safe cancer immunotherapy.
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Affiliation(s)
- C David Pauza
- American Gene Technologies International Inc., Rockville, MD, United States
| | - Mei-Ling Liou
- American Gene Technologies International Inc., Rockville, MD, United States
| | - Tyler Lahusen
- American Gene Technologies International Inc., Rockville, MD, United States
| | - Lingzhi Xiao
- American Gene Technologies International Inc., Rockville, MD, United States
| | - Rena G Lapidus
- Department of Medicine, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Cristiana Cairo
- Institute of Human Virology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Haishan Li
- American Gene Technologies International Inc., Rockville, MD, United States
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Silva-Santos B, Strid J. Working in "NK Mode": Natural Killer Group 2 Member D and Natural Cytotoxicity Receptors in Stress-Surveillance by γδ T Cells. Front Immunol 2018; 9:851. [PMID: 29740448 PMCID: PMC5928212 DOI: 10.3389/fimmu.2018.00851] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/06/2018] [Indexed: 01/26/2023] Open
Abstract
Natural killer cell receptors (NKRs) are germline-encoded transmembrane proteins that regulate the activation and homeostasis of NK cells as well as other lymphocytes. For γδ T cells, NKRs play critical roles in discriminating stressed (transformed or infected) cells from their healthy counterparts, as proposed in the “lymphoid stress-surveillance” theory. Whereas the main physiologic role is seemingly fulfilled by natural killer group 2 member D, constitutively expressed by γδ T cells, enhancement of their therapeutic potential may rely on natural cytotoxicity receptors (NCRs), like NKp30 or NKp44, that can be induced selectively on human Vδ1+ T cells. Here, we review the contributions of NCRs, NKG2D, and their multiple ligands, to γδ T cell biology in mouse and human.
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Affiliation(s)
- Bruno Silva-Santos
- Instituto de Medicina Molecular - João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Jessica Strid
- Division of Immunology and Inflammation, Department of Medicine, Imperial College London, London, United Kingdom
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Boutin L, Scotet E. Towards Deciphering the Hidden Mechanisms That Contribute to the Antigenic Activation Process of Human Vγ9Vδ2 T Cells. Front Immunol 2018; 9:828. [PMID: 29731756 PMCID: PMC5919976 DOI: 10.3389/fimmu.2018.00828] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022] Open
Abstract
Vγ9Vδ2 T cells represent a major unconventional γδ T cell subset located in the peripheral blood of adults in humans and several non-human primates. Lymphocytes that constitute this transitional subset can sense subtle level changes of intracellular phosphorylated intermediates of the isoprenoid biosynthesis pathway (phosphoantigens, pAg), such as isopentenyl pyrophosphate, during cell stress events. This unique antigenic activation process operates in a rigorous framework that requires the expression of butyrophilin 3A1 (BTN3A1/CD277) molecules, which are type I glycoproteins that belong to the B7 family. Several studies have further shown that pAg specifically bind to the intracellular B30.2 domain of BTN3A1 linked to the antigenic activation of Vγ9Vδ2 T cells. Here, we highlight the recent advances in BTN3A1 dynamics induced upon the binding of pAg and the contribution of the different subunits to this activation process. Recent reports support that conformational modifications of BTN3A1 might represent a key step in the detection of infection or tumorigenesis by Vγ9Vδ2 T cells. A better understanding of this mechanism will help optimize novel immunotherapeutical approaches that target defined functions of this unique γδ T cell subset.
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Affiliation(s)
- Lola Boutin
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,Sanofi R&D, Biologics Research, Centre de Recherche Vitry Alfortville, Paris, France
| | - Emmanuel Scotet
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France
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Hoeres T, Smetak M, Pretscher D, Wilhelm M. Improving the Efficiency of Vγ9Vδ2 T-Cell Immunotherapy in Cancer. Front Immunol 2018; 9:800. [PMID: 29725332 PMCID: PMC5916964 DOI: 10.3389/fimmu.2018.00800] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/03/2018] [Indexed: 12/28/2022] Open
Abstract
Increasing immunological knowledge and advances in techniques lay the ground for more efficient and broader application of immunotherapies. gamma delta (γδ) T-cells possess multiple favorable anti-tumor characteristics, making them promising candidates to be used in cellular and combination therapies of cancer. They recognize malignant cells, infiltrate tumors, and depict strong cytotoxic and pro-inflammatory activity. Here, we focus on human Vγ9Vδ2 T-cells, the most abundant γδ T-cell subpopulation in the blood, which are able to inhibit cancer progression in various models in vitro and in vivo. For therapeutic use they can be cultured and manipulated ex vivo and in the following adoptively transferred to patients, as well as directly stimulated to propagate in vivo. In clinical studies, Vγ9Vδ2 T-cells repeatedly demonstrated a low toxicity profile but hitherto only the modest therapeutic efficacy. This review provides a comprehensive summary of established and newer strategies for the enhancement of Vγ9Vδ2 T-cell anti-tumor functions. We discuss data of studies exploring methods for the sensitization of malignant cells, the improvement of recognition mechanisms and cytotoxic activity of Vγ9Vδ2 T-cells. Main aspects are the tumor cell metabolism, antibody-dependent cell-mediated cytotoxicity, antibody constructs, as well as activating and inhibitory receptors like NKG2D and immune checkpoint molecules. Several concepts show promising results in vitro, now awaiting translation to in vivo models and clinical studies. Given the array of research and encouraging findings in this area, this review aims at optimizing future investigations, specifically targeting the unanswered questions.
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Affiliation(s)
- Timm Hoeres
- Department of Hematology and Medical Oncology, Paracelsus Medical University, Nuremberg, Germany
| | - Manfred Smetak
- Department of Hematology and Medical Oncology, Paracelsus Medical University, Nuremberg, Germany
| | - Dominik Pretscher
- Department of Hematology and Medical Oncology, Paracelsus Medical University, Nuremberg, Germany
| | - Martin Wilhelm
- Department of Hematology and Medical Oncology, Paracelsus Medical University, Nuremberg, Germany
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Tanaka Y, Murata‐Hirai K, Iwasaki M, Matsumoto K, Hayashi K, Kumagai A, Nada MH, Wang H, Kobayashi H, Kamitakahara H, Okamura H, Sugie T, Minato N, Toi M, Morita CT. Expansion of human γδ T cells for adoptive immunotherapy using a bisphosphonate prodrug. Cancer Sci 2018; 109:587-599. [PMID: 29288540 PMCID: PMC5834800 DOI: 10.1111/cas.13491] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/20/2017] [Accepted: 12/25/2017] [Indexed: 12/27/2022] Open
Abstract
Cancer immunotherapy with human γδ T cells expressing Vγ2Vδ2 T cell receptor (also termed Vγ9Vδ2) has shown promise because of their ability to recognize and kill most types of tumors in a major histocombatibility complex (MHC) -unrestricted fashion that is independent of the number of tumor mutations. In clinical trials, adoptive transfer of Vγ2Vδ2 T cells has been shown to be safe and does not require preconditioning. In this report, we describe a method for preparing highly enriched human Vγ2Vδ2 T cells using the bisphosphonate prodrug, tetrakis-pivaloyloxymethyl 2-(thiazole-2-ylamino)ethylidene-1,1-bisphosphonate (PTA). PTA stimulated the expansion of Vγ2Vδ2 cells to purities up to 99%. These levels were consistently higher than those observed after expansion with zoledronic acid, the most commonly used stimulator for clinical trials. Cell numbers also averaged more than those obtained with zoledronic acid and the expanded Vγ2Vδ2 cells exhibited high cytotoxicity against tumor cells. The high purity of Vγ2Vδ2 cells expanded by PTA increased engraftment success in immunodeficient NOG mice. Even low levels of contaminating αβ T cells resulted in some mice with circulating human αβ T cells rather than Vγ2Vδ2 cells. Vγ2Vδ2 cells from engrafted NOG mice upregulated CD25 and secreted tumor necrosis factor-α and interferon-γ in response to PTA-treated tumor cells. Thus, PTA expands Vγ2Vδ2 T cells to higher purity than zoledronic acid. The high purities allow the successful engraftment of immunodeficient mice without further purification and may speed up the development of allogeneic Vγ2Vδ2 T cell therapies derived from HLA-matched normal donors for patients with poor autologous Vγ2Vδ2 T cell responses.
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Affiliation(s)
- Yoshimasa Tanaka
- Center for Innovation in Immunoregulative Technology and TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
- Department of Immunology and Cell BiologyGraduate School of MedicineKyoto UniversityKyotoJapan
- Center for Bioinformatics and Molecular MedicineGraduate School of Biomedical SciencesNagasaki UniversityNagasakiJapan
| | - Kaoru Murata‐Hirai
- Center for Innovation in Immunoregulative Technology and TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Masashi Iwasaki
- Center for Innovation in Immunoregulative Technology and TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Kenji Matsumoto
- Center for Innovation in Immunoregulative Technology and TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Kosuke Hayashi
- Center for Innovation in Immunoregulative Technology and TherapeuticsGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Asuka Kumagai
- Center for Bioinformatics and Molecular MedicineGraduate School of Biomedical SciencesNagasaki UniversityNagasakiJapan
| | - Mohanad H. Nada
- Department of Internal Medicine and the Interdisciplinary Graduate Program in ImmunologyUniversity of Iowa Carver College of MedicineIowa City Veterans Affairs Health Care SystemIowa CityIAUSA
| | - Hong Wang
- Department of Internal Medicine and the Interdisciplinary Graduate Program in ImmunologyUniversity of Iowa Carver College of MedicineIowa City Veterans Affairs Health Care SystemIowa CityIAUSA
| | - Hirohito Kobayashi
- Department of Transfusion Medicine and Cell ProcessingTokyo Women's Medical UniversityTokyoJapan
| | - Hiroshi Kamitakahara
- Department of Forest and Biomaterials ScienceGraduate School of AgricultureKyoto UniversityKyotoJapan
| | - Haruki Okamura
- Department of Tumor Immunology and Cell TherapyHyogo College of MedicineNishinomiyaHyogoJapan
| | - Tomoharu Sugie
- Department of SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Nagahiro Minato
- Department of Immunology and Cell BiologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Masakazu Toi
- Department of SurgeryGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Craig T. Morita
- Department of Internal Medicine and the Interdisciplinary Graduate Program in ImmunologyUniversity of Iowa Carver College of MedicineIowa City Veterans Affairs Health Care SystemIowa CityIAUSA
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48
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Davey MS, Malde R, Mykura RC, Baker AT, Taher TE, Le Duff CS, Willcox BE, Mehellou Y. Synthesis and Biological Evaluation of ( E)-4-Hydroxy-3-methylbut-2-enyl Phosphate (HMBP) Aryloxy Triester Phosphoramidate Prodrugs as Activators of Vγ9/Vδ2 T-Cell Immune Responses. J Med Chem 2018; 61:2111-2117. [PMID: 29457898 PMCID: PMC6493972 DOI: 10.1021/acs.jmedchem.7b01824] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
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The aryloxy triester
phosphoramidate prodrug approach has been
used with success in drug discovery. Herein, we describe the first
application of this prodrug technology to the monophosphate derivative
of the phosphoantigen HMBPP and one of its analogues. Some of these
prodrugs exhibited specific and potent activation of Vγ9/Vδ2
T-cells, which were then able to lyse bladder cancer cells in vitro.
This work highlights the promise of this prodrug technology in the
discovery of novel immunotherapeutics.
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Affiliation(s)
| | | | | | | | | | | | | | - Youcef Mehellou
- School of Pharmacy and Pharmaceutical Sciences , Redwood Building, Cardiff University , Cardiff CF10 3NB , U.K
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49
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Prediction of Disordered Regions and Their Roles in the Anti-Pathogenic and Immunomodulatory Functions of Butyrophilins. Molecules 2018; 23:molecules23020328. [PMID: 29401697 PMCID: PMC6017450 DOI: 10.3390/molecules23020328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/31/2018] [Accepted: 02/01/2018] [Indexed: 12/13/2022] Open
Abstract
Butyrophilins (BTNs) are a group of the moonlighting proteins, some members of which are secreted in milk. They constitute a large family of structurally similar type 1 transmembrane proteins from the immunoglobulin superfamily. Although the founding member of this family is related to lactation, participating in the secretion, formation and stabilization of milk fat globules, it may also have a cell surface receptor function. Generally, the BTN family members are known to modulate co-stimulatory responses, T cell selection, differentiation, and cell fate determination. Polymorphism of these genes was shown to be associated with the pathology of several human diseases. Despite their biological significance, structural information on human butyrophilins is rather limited. Based on their remarkable multifunctionality, butyrophilins seem to belong to the category of moonlighting proteins, which are known to contain intrinsically disordered protein regions (IDPRs). However, the disorder status of human BTNs was not systematically investigated as of yet. The goal of this study is to fill this gap and to evaluate peculiarities of intrinsic disorder predisposition of the members of human BTN family, and to find if they have IDPRs that can be attributed to the multifunctionality of these important proteins.
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50
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Tan CTY, Wistuba-Hamprecht K, Xu W, Nyunt MSZ, Vasudev A, Lee BTK, Pawelec G, Puan KJ, Rotzschke O, Ng TP, Larbi A. Vδ2+ and α/ß T cells show divergent trajectories during human aging. Oncotarget 2018; 7:44906-44918. [PMID: 27384987 PMCID: PMC5216693 DOI: 10.18632/oncotarget.10096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/29/2016] [Indexed: 12/21/2022] Open
Abstract
Chronological aging and a variety of stressors are driving forces towards immunosenescence. While much attention was paid to the main T cell component, α/β T cells, few studies concentrate on the impact of age on γ/δ T cells' characteristics. The latter are important players of adaptive immunity but also have features associated with innate immunity. Vδ2+ are the main component of γ/δ while Vδ1+ T cells expand upon Cytomegalovirus (CMV) infection and with age. The Vδ2+ T cells are not influenced by persistent infections but do contribute to immunosurveillance against bacterial pathogens. Here, we focus on Vδ2+ T cells and report that their composition and functionality is not altered in older adults. We have performed a side-by-side comparison of α/β and Vδ2 cells by using two robust markers of T cell replicative history and cell differentiation (CD28 and CD27), and cytokine secretion (IFN-γ and TNF-α). Significant differences in Vδ2 versus α/β homeostasis, as well as phenotypic and functional changes emerged. However, the data strongly suggest a sustained functionality of the Vδ2 population with age, independently of the challenge. This suggests differential trajectories towards immunosenescence in α/β and Vδ2+ T cells, most likely explained by their intrinsic functions.
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Affiliation(s)
- Crystal Tze Ying Tan
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Kilian Wistuba-Hamprecht
- Department of Internal Medicine II, Centre for Medical Research, University Medical Center, Tübingen, Germany.,Department of Dermatology, University Medical Center, Tübingen, Germany
| | - Weili Xu
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore
| | - Ma Schwe Zin Nyunt
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Anusha Vasudev
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Bernett Teck Kwong Lee
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Graham Pawelec
- Department of Internal Medicine II, Centre for Medical Research, University Medical Center, Tübingen, Germany
| | - Kia Joo Puan
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Tze Pin Ng
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore.,Department of Microbiology, National University of Singapore, Singapore
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