1
|
Wragg KM, Tan HX, Kristensen AB, Nguyen-Robertson CV, Kelleher AD, Parsons MS, Wheatley AK, Berzins SP, Pellicci DG, Kent SJ, Juno JA. High CD26 and Low CD94 Expression Identifies an IL-23 Responsive Vδ2 + T Cell Subset with a MAIT Cell-like Transcriptional Profile. Cell Rep 2021; 31:107773. [PMID: 32553157 DOI: 10.1016/j.celrep.2020.107773] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/24/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Vδ2+ T cells play a critical role in immunity to micro-organisms and cancer but exhibit substantial heterogeneity in humans. Here, we demonstrate that CD26 and CD94 define transcriptionally, phenotypically, and functionally distinct Vδ2+ T cell subsets. Despite distinct antigen specificities, CD26hiCD94lo Vδ2+ cells exhibit substantial similarities to CD26hi mucosal-associated invariant T (MAIT) cells, although CD26- Vδ2+ cells exhibit cytotoxic, effector-like profiles. At birth, the Vδ2+Vγ9+ population is dominated by CD26hiCD94lo cells; during adolescence and adulthood, Vδ2+ cells acquire CD94/NKG2A expression and the relative frequency of the CD26hiCD94lo subset declines. Critically, exposure of the CD26hiCD94lo subset to phosphoantigen in the context of interleukin-23 (IL-23) and CD26 engagement drives the acquisition of a cytotoxic program and concurrent loss of the MAIT cell-like phenotype. The ability to modulate the cytotoxic potential of CD26hiCD94lo Vδ2+ cells, combined with their adenosine-binding capacity, may make them ideal targets for immunotherapeutic expansion and adoptive transfer.
Collapse
Affiliation(s)
- Kathleen M Wragg
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Hyon-Xhi Tan
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Anne B Kristensen
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Catriona V Nguyen-Robertson
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia; ARC Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Anthony D Kelleher
- The Kirby Institute, University of New South Wales, Kensington, NSW 2052, Australia; St. Vincent's Centre for Applied Medical Research, St. Vincent's Hospital, Darlinghurst, NSW 2011, Australia
| | - Matthew S Parsons
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia; Division of Microbiology and Immunology, Yerkes National Primate Research Center, Atlanta, GA 30329, USA; Department of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Adam K Wheatley
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Stuart P Berzins
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia; Federation University and Fiona Elsey Cancer Research Institute, Ballarat, VIC 3350, Australia
| | - Daniel G Pellicci
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia; Murdoch Children's Research Institute, Parkville, VIC 3052, Australia
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia; Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Health, Central Clinical School, Monash University, Carlton, VIC 3053, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Melbourne, Melbourne, VIC 3000, Australia.
| | - Jennifer A Juno
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3000, Australia.
| |
Collapse
|
2
|
Fang H, Wang W, Kadia TM, El Hussein S, Wang SA, Khoury JD. CD94 expression patterns in reactive and neoplastic T-cell and NK-cell proliferations. Leuk Res 2021; 108:106614. [PMID: 33990003 DOI: 10.1016/j.leukres.2021.106614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 04/24/2021] [Accepted: 05/07/2021] [Indexed: 11/24/2022]
Abstract
Lymphomas and leukemias of T-cell and NK-cell lineages are highly heterogeneous disorders and lack effective therapeutic strategies. Targeted therapies including anti-CD94 agents are currently under clinical investigation, but studies of CD94 expression on mature T/NK-cell neoplasms are limited. In this study, we investigated the landscape of CD94 protein expression in 15 patients with reactive T/NK-cell proliferations and 124 patients with various T/NK cell neoplasms. CD94 expression was detected at a high level in reactive NK-cells, with a lower level of expression in a subset of reactive CD8 + T-cells; reactive CD4 + T-cells were negative for CD94 expression. All NK-cell neoplasms surveyed had high-level CD94 expression, which was significantly higher than that in T cell neoplasms (p = 0.0174). In neoplastic T-cell proliferations, CD94 expression was positive in all 10 hepatosplenic T-cell lymphoma cases tested, with a high mean fluorescence intensity. Fifty-six percent of T-cell large granular lymphocytic leukemia cases were positive for CD94 expression in a subset of neoplastic cells. All T-cell prolymphocytic leukemia and 97 % of peripheral T-cell lymphoma cases showed no CD94 expression. Our findings demonstrate a broad range of CD94 expression among T/NK-cell neoplasms, in some at levels that suggest therapeutic vulnerability to CD94-targeted therapies.
Collapse
Affiliation(s)
- Hong Fang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Wei Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Tapan M Kadia
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Siba El Hussein
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sa A Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Joseph D Khoury
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| |
Collapse
|
3
|
Graves SS, Gyurkocza B, Stone DM, Parker MH, Abrams K, Jochum C, Gallo S, Saad M, Johnson MM, Rosinski SL, Storb R. Development and characterization of a canine-specific anti- CD94 (KLRD-1) monoclonal antibody. Vet Immunol Immunopathol 2019; 211:10-18. [PMID: 31084888 DOI: 10.1016/j.vetimm.2019.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 01/31/2019] [Accepted: 03/14/2019] [Indexed: 12/29/2022]
Abstract
Natural killer (NK) cells are non-T, non-B lymphocytes are part of the innate immune system and function without prior activation. The human NK cell surface determinant, CD94, plays a critical role in regulation of NK cell activity as a heterodimer with NKG2 subclasses. Canine NK cells are not as well defined as the human and murine equivalents, due in part to the paucity of reagents specific to cell surface markers. Canines possess NK/NKT cells that have similar morphological characteristics to those found in humans, yet little is known about their functional characteristics nor of cell surface expression of CD94. Here, we describe the development and function of a monoclonal antibody (mAb) to canine (ca) CD94. Freshly isolated canine CD94+ cells were CD3+/-, CD8+/-, CD4-, CD21-, CD5low, NKp46+, and were cytotoxic against a canine target cell line. Anti-caCD94 mAb proved useful in enriching NK/NKT cells from PBMC for expansion on CTAC feeder cells in the presence of IL-2 and IL-15. The cultured cells were highly cytolytic with co-expression of NKp46 and reduced expression of CD3. Transmission electron microscopy revealed expanded CD94+ lymphocytes were morphologically large granular lymphocytes with large electron dense granules. Anti-caCD94 (mAb) can serve to enrich NK/NKT cells from dog peripheral blood for ex vivo expansion for HCT and is a potentially valuable reagent for studying NK/NKT regulation in the dog.
Collapse
Affiliation(s)
- Scott S Graves
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Boglarka Gyurkocza
- Department of Hematology, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, United States
| | - Diane M Stone
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Maura H Parker
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Kraig Abrams
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Christoph Jochum
- Clinic of Internal Medicine and Gastroenterology, University Medicine Essen St-Josef Hospital, Werden, Essen, Germany
| | - Susanna Gallo
- Medical Oncology, Turin Metropolitan Transplantation Center, Candiolo Cancer Institute-FPO IRCCS, Candiolo, Italy
| | - Marium Saad
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Melissa M Johnson
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Steven L Rosinski
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States
| | - Rainer Storb
- Transplantation Biology Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, United States; Department of Medicine, University of Washington, Seattle, WA, 981095, United States.
| |
Collapse
|
4
|
Wroblewski EE, Parham P, Guethlein LA. Two to Tango: Co-evolution of Hominid Natural Killer Cell Receptors and MHC. Front Immunol 2019; 10:177. [PMID: 30837985 PMCID: PMC6389700 DOI: 10.3389/fimmu.2019.00177] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 01/21/2019] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells have diverse roles in hominid immunity and reproduction. Modulating these functions are the interactions between major histocompatibility complex (MHC) class I molecules that are ligands for two NK cell surface receptor types. Diverse killer cell immunoglobulin-like receptors (KIR) bind specific motifs encoded within the polymorphic MHC class I cell surface glycoproteins, while, in more conserved interactions, CD94:NKG2A receptors recognize MHC-E with bound peptides derived from MHC class I leader sequences. The hominid lineage presents a choreographed co-evolution of KIR with their MHC class I ligands. MHC-A, -B, and -C are present in all great apes with species-specific haplotypic variation in gene content. The Bw4 epitope recognized by lineage II KIR is restricted to MHC-B but also present on some gorilla and human MHC-A. Common to great apes, but rare in humans, are MHC-B possessing a C1 epitope recognized by lineage III KIR. MHC-C arose from duplication of MHC-B and is fixed in all great apes except orangutan, where it exists on approximately 50% of haplotypes and all allotypes are C1-bearing. Recent study showed that gorillas possess yet another intermediate MHC organization compared to humans. Like orangutans, but unlike the Pan-Homo species, duplication of MHC-B occurred. However, MHC-C is fixed, and the MHC-C C2 epitope (absent in orangutans) emerges. The evolution of MHC-C drove expansion of its cognate lineage III KIR. Recently, position −21 of the MHC-B leader sequence has been shown to be critical in determining NK cell educational outcome. In humans, methionine (−21M) results in CD94:NKG2A-focused education whereas threonine (−21T) produces KIR-focused education. This is another dynamic position among hominids. Orangutans have exclusively −21M, consistent with their intermediate stage in lineage III KIR-focused evolution. Gorillas have both −21M and −21T, like humans, but they are unequally encoded by their duplicated B genes. Chimpanzees have near-fixed −21T, indicative of KIR-focused NK education. Harmonious with this observation, chimpanzee KIR exhibit strong binding and, compared to humans, smaller differences between binding levels of activating and inhibitory KIR. Consistent between these MHC-NK cell receptor systems over the course of hominid evolution is the evolution of polymorphism favoring the more novel and dynamic KIR system.
Collapse
Affiliation(s)
- Emily E Wroblewski
- Department of Anthropology, Washington University, St. Louis, MO, United States
| | - Peter Parham
- Departments of Structural Biology and Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, United States
| | - Lisbeth A Guethlein
- Departments of Structural Biology and Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, United States
| |
Collapse
|
5
|
Abstract
BACKGROUND Influenza infects tens of millions of people every year in the USA. Other than notable risk groups, such as children and the elderly, it is difficult to predict what subpopulations are at higher risk of infection. Viral challenge studies, where healthy human volunteers are inoculated with live influenza virus, provide a unique opportunity to study infection susceptibility. Biomarkers predicting influenza susceptibility would be useful for identifying risk groups and designing vaccines. METHODS We applied cell mixture deconvolution to estimate immune cell proportions from whole blood transcriptome data in four independent influenza challenge studies. We compared immune cell proportions in the blood between symptomatic shedders and asymptomatic nonshedders across three discovery cohorts prior to influenza inoculation and tested results in a held-out validation challenge cohort. RESULTS Natural killer (NK) cells were significantly lower in symptomatic shedders at baseline in both discovery and validation cohorts. Hematopoietic stem and progenitor cells (HSPCs) were higher in symptomatic shedders at baseline in discovery cohorts. Although the HSPCs were higher in symptomatic shedders in the validation cohort, the increase was statistically nonsignificant. We observed that a gene associated with NK cells, KLRD1, which encodes CD94, was expressed at lower levels in symptomatic shedders at baseline in discovery and validation cohorts. KLRD1 expression in the blood at baseline negatively correlated with influenza infection symptom severity. KLRD1 expression 8 h post-infection in the nasal epithelium from a rhinovirus challenge study also negatively correlated with symptom severity. CONCLUSIONS We identified KLRD1-expressing NK cells as a potential biomarker for influenza susceptibility. Expression of KLRD1 was inversely correlated with symptom severity. Our results support a model where an early response by KLRD1-expressing NK cells may control influenza infection.
Collapse
Affiliation(s)
- Erika Bongen
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA 94305 USA
- Program in Immunology, Stanford University School of Medicine, Stanford, 94305 CA USA
| | - Francesco Vallania
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA 94305 USA
- Department of Medicine, Division of Biomedical Informatics Research, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Paul J. Utz
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA 94305 USA
- Program in Immunology, Stanford University School of Medicine, Stanford, 94305 CA USA
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Purvesh Khatri
- Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA 94305 USA
- Program in Immunology, Stanford University School of Medicine, Stanford, 94305 CA USA
- Department of Medicine, Division of Biomedical Informatics Research, Stanford University School of Medicine, Stanford, CA 94305 USA
| |
Collapse
|
6
|
Pupuleku A, Costa-García M, Farré D, Hengel H, Angulo A, Muntasell A, López-Botet M. Elusive Role of the CD94/NKG2C NK Cell Receptor in the Response to Cytomegalovirus: Novel Experimental Observations in a Reporter Cell System. Front Immunol 2017; 8:1317. [PMID: 29114247 PMCID: PMC5660692 DOI: 10.3389/fimmu.2017.01317] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 09/29/2017] [Indexed: 11/13/2022] Open
Abstract
Human cytomegalovirus (HCMV) infection promotes the differentiation and persistent expansion of a mature NK cell subset, which displays high surface levels of the activating CD94/NKG2C NK cell receptor, together with additional distinctive phenotypic and functional features. The mechanisms underlying the development of adaptive NK cells remain uncertain but some observations support the involvement of a cognate interaction of CD94/NKG2C with ligand(s) displayed by HCMV-infected cells. To approach this issue, the heterodimer and its adaptor (DAP12) were expressed in the human Jurkat leukemia T cell line; signaling was detected by transfection of a reporter plasmid encoding for Luciferase (Luc) under NFAT/AP1-dependent control. Engagement of the receptor by solid-phase bound CD94- or NKG2C-specific monoclonal antibodies (mAbs) triggered Luc expression. Moreover, reporter activation was detectable upon interaction with HLA-E+ 721.221 (.221-AEH) cells, as well as with 721.221 cells incubated with synthetic peptides, which stabilized surface expression of endogenous HLA-E; the response was specifically antagonized by soluble NKG2C- and HLA-E-specific mAbs. By contrast, activation of Jurkat-NKG2C+ was undetectable upon interaction with Human Fetal Foreskin Fibroblasts (HFFF) infected with HCMV laboratory strains (i.e., AD169, Towne), regardless of their differential ability to preserve surface HLA-E expression. On the other hand, infection with two clinical isolates or with the endotheliotropic TB40/E strain triggered Jurkat-NKG2C+ activation; yet, this response was not inhibited by blocking mAbs and was independent of CD94/NKG2C expression. The results are discussed in the framework of previous observations supporting the hypothetical existence of specific ligand(s) for CD94/NKG2C in HCMV-infected cells.
Collapse
Affiliation(s)
- Aldi Pupuleku
- Department of Experimental and Health Sciences, University Pompeu Fabra, Barcelona, Spain
| | - Marcel Costa-García
- Department of Experimental and Health Sciences, University Pompeu Fabra, Barcelona, Spain
| | - Domènec Farré
- Immunology Unit, Department of Biomedical Sciences, Medical School, University of Barcelona, Barcelona, Spain
| | - Hartmut Hengel
- Institute of Virology, Albert Ludwigs University of Freiburg, Freiburg, Germany.,Faculty of Medicine, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Ana Angulo
- Immunology Unit, Department of Biomedical Sciences, Medical School, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Aura Muntasell
- Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Miguel López-Botet
- Department of Experimental and Health Sciences, University Pompeu Fabra, Barcelona, Spain.,Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| |
Collapse
|
7
|
Hasmim M, Khalife N, Zhang Y, Doldur M, Visentin G, Terry S, Giron-Michel J, Tang R, Delhommeau F, Dulphy N, Bourhis JH, Louache F, Chouaib S. Expression of CD94 by ex vivo-differentiated NK cells correlates with the in vitro and in vivo acquisition of cytotoxic features. Oncoimmunology 2017; 6:e1346763. [PMID: 29123958 DOI: 10.1080/2162402x.2017.1346763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/20/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022] Open
Abstract
The administration of ex vivo-expanded Natural Killer (NK) cells in leukemia therapy is still challenging, in part due to the difficulty to generate in sufficient quantities fully mature and functional NK cells and Identification of surface markers indicative of NK maturation and functionality is therefore needed. Here, based on the analysis of surface receptors of ex vivo-expanded NK cells, we identified CD94 as a surface marker correlating with high lytic potential against leukemic cell lines and immunological synapse formation. CD94-positive ex vivo-expanded NK cells displayed higher expression of NKG2 receptors and the adhesion molecule LFA-1, as compared with their CD94-negative counterparts. We also tested the in vivo anti-leukemic capacity of ex vivo-expanded NK cells against patient-derived acute myeloid leukemia cells. Although no anti-leukemic effect was detected, we noticed that only CD94-positive ex vivo-expanded NK cells were detected in leukemic mice at the end of the 2-week treatment. Moreover, flow cytometry analysis showed a subpopulation harboring CD94 (NK) and CD34 (leukemic cells) double staining, indicative of conjugate formation. Therefore surface expression of CD94 on ex vivo-differentiated NK cells emerged as an indicator of in vitro and in vivo killer cell functionality.
Collapse
Affiliation(s)
- Meriem Hasmim
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France
| | - Nadine Khalife
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France
| | - Yanyan Zhang
- INSERM U1170, Gustave Roussy, F-94805, Villejuif, France.,Paris-Sud University, F-91405, Orsay, France
| | - Manale Doldur
- Qatar Biomedical Research Institute, Doha, Hamad Bin Khalifa University, Qatar
| | - Geralidne Visentin
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France
| | - Stéphane Terry
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France
| | - Julien Giron-Michel
- INSERM UMRS 1197, Hôpital Paul Brousse, Villejuif, Cedex, France.,Université Paris-Saclay, France
| | - Ruoping Tang
- Service d'Hématologie clinique et de thérapie cellulaire, AP-HP, Hôpital St Antoine, F-75012, Paris, France
| | - François Delhommeau
- Sorbonne Universités, UPMC Université Paris 06, UMR_S 938, CDR Saint-Antoine, F-75012, Paris, France.,INSERM, UMR_S 938, CDR Saint-Antoine, F-75012, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, GRC n°7, Groupe de Recherche Clinique sur les Myéloproliférations Aiguës et Chroniques MYPAC, F-75012, Paris, France.,Service d'hématologie biologique, AP-HP, Hôpital Saint-Antoine & Hôpital Armand-Trousseau, F-75012, Paris, France
| | - Nicolas Dulphy
- UMR-1160, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France; U 1160, Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Laboratoire d'Immunologie et Histocompatibilité, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Jean-Henri Bourhis
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France.,Department of Hematology and Bone Marrow Transplantation, Gustave Roussy Campus, Villejuif, France
| | - Fawzia Louache
- INSERM U1170, Gustave Roussy, F-94805, Villejuif, France.,Paris-Sud University, F-91405, Orsay, France
| | - Salem Chouaib
- U1186-INSERM, Equipe labellisée Ligue contre le Cancer, Institut Gustave Roussy, 114 rue Edouard Vaillant, Villejuif, France
| |
Collapse
|
8
|
Li XP, Hu YH. CD94 of tongue sole Cynoglossus semilaevis binds a wide arrange of bacteria and possesses antibacterial activity. Fish Shellfish Immunol 2016; 58:641-649. [PMID: 27720695 DOI: 10.1016/j.fsi.2016.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 10/01/2016] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
In this study, we examined the expression patterns and the functions of the tongue sole Cynoglossus semilaevis CD94, CsCD94. CsCD94 is composed of 209 amino acid residues and shares 43.0-50.2% overall identities with known teleost CD94 sequence. CsCD94 has a C-type lectin-like domain. Expression of CsCD94 occurred in multiple tissues and was upregulated during bacterial infection. Recombinant CsCD94 (rCsCD94) exhibited apparent binding and agglutinating activities against both Gram-positive and Gram-negative bacteria in a Ca2+-dependent manner. Treatment of bacteria with rCsCD94 enhanced phagocytosis of the bacteria by peripheral blood leukocytes. Furthermore, incubation of rCsCD94 with bacteria reduced the survival of the bacteria in vitro. Taken together, these results indicate that rCsCD94 is a key factor in the bactericidal and phagocytic effects of tongue sole, and reveal for the first time an essential role of fish CD94 in antibacterial immunity, thereby adding insight into the function of CD94.
Collapse
Affiliation(s)
- Xue-Peng Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yong-Hua Hu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| |
Collapse
|
9
|
Abstract
The inhibitory receptors for MHC class I have a central role in controlling natural killer (NK) cell activity. Soon after their discovery, it was found that these receptors have a degree of peptide selectivity. Such peptide selectivity has been demonstrated for all inhibitory killer cell immunoglobulin-like receptor (KIR) tested to date, certain activating KIR, and also members of the C-type lectin-like family of receptors. This selectivity is much broader than the peptide specificity of T cell receptors, with NK cell receptors recognizing peptide motifs, rather than individual peptides. Inhibitory receptors on NK cells can survey the peptide:MHC complexes expressed on the surface of target cells, therefore subsequent transduction of an inhibitory signal depends on the overall peptide content of these MHC class I complexes. Functionally, KIR-expressing NK cells have been shown to be unexpectedly sensitive to changes in the peptide content of MHC class I, as peptide:MHC class I complexes that weakly engage KIR can antagonize the inhibitory signals generated by engagement of stronger KIR-binding peptide:MHC class I complexes. This property provides KIR-expressing NK cells with the potential to recognize changes in the peptide:MHC class I repertoire, which may occur during viral infections and tumorigenesis. By contrast, in the presence of HLA class I leader peptides, virus-derived peptides can induce a synergistic inhibition of CD94:NKG2A-expressing NK cells through recruitment of CD94 in the absence of NKG2A. On the other hand, CD94:NKG2A-positive NK cells can be exquisitely sensitive to changes in the levels of MHC class I. Peptide antagonism and sensitivity to changes in MHC class I levels are properties that distinguish KIR and CD94:NKG2A. The subtle difference in the properties of NK cells expressing these receptors provides a rationale for having complementary inhibitory receptor systems for MHC class I.
Collapse
Affiliation(s)
| | | | - Salim I. Khakoo
- Clinical and Experimental Sciences, Faculty of Medicine, Southampton General Hospital, University of Southampton, Southampton, UK
| |
Collapse
|