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Porada C, Kuhlman B, Diaz J, Simon T, Reaves K, Walker S, Atala A, Almeida-Porada G. Simulated Microgravity Impairs Human NK Cell Cytotoxic Activity Against Space Radiation-Relevant Leukemic Cells. RESEARCH SQUARE 2024:rs.3.rs-3972868. [PMID: 38746365 PMCID: PMC11092860 DOI: 10.21203/rs.3.rs-3972868/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Natural killer (NK) cells are important effectors of the innate immune system. Unlike T cells, NK cells do not require antigen-priming, making them an important first-line of defense against malignant cells. Because of the potential for increased cancer risk as a result of astronaut exposure to space radiation, we performed studies to determine whether conditions of microgravity present during spaceflight affects the body's natural defenses against leukemogenesis. Human NK cells were cultured for 48 hours under normal gravity and simulated microgravity (sµG), and cytotoxicity against K-562 (CML) and MOLT-4 (T-ALL) cell lines was measured using standard methodology or under continuous conditions of sµG. Even this brief exposure to sµG markedly reduced NK cytotoxicity against both leukemic cells using standard assay procedures, and these deleterious effects were even more pronounced in continuous sµG. RNA-seq performed on NK cells from two healthy donors provided insight into the mechanism(s) by which sµG reduced cytotoxicity. Given our prior report that human HSC exposed to simulated space radiation gave rise to T-ALL in vivo , the reduced cytotoxicity against MOLT-4 is striking and raises the possibility that µG may add to astronaut risk of leukemogenesis during prolonged missions beyond LEO.
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Carbone E, De Felice M, Di Rosa F, D'Oro U, Fontana S, La Cava A, Maio M, Matarese G, Racioppi L, Ruggiero G, Terrazzano G. Serafino Zappacosta: An Enlightened Mentor and Educator. Front Immunol 2020; 11:217. [PMID: 32117323 PMCID: PMC7031500 DOI: 10.3389/fimmu.2020.00217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 01/27/2020] [Indexed: 11/22/2022] Open
Abstract
With this article, the authors aim to honor the memory of Serafino Zappacosta, who had been their mentor during the early years of their career in science. The authors discuss how the combination of Serafino Zappacosta's extraordinary commitment to teaching and passion for science created a fostering educational environment that led to the creation of the “Ruggero Ceppellini Advanced School of Immunology.” The review also illustrates how the research on the MHC and the inspirational scientific context in the Zappacosta's laboratory influenced the authors' early scientific interests, and subsequent professional work as immunologists.
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Affiliation(s)
- Ennio Carbone
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, Catanzaro, Italy.,Department of Microbiology, Cell and Tumor Biology, Karolinska Intitutet, Stockholm, Sweden
| | - Mario De Felice
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy
| | - Francesca Di Rosa
- Institute of Molecular Biology and Pathology, Consiglio Nazionale delle Ricerche (IBPM-CNR), Rome, Italy
| | | | - Silvia Fontana
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy
| | - Antonio La Cava
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Michele Maio
- Center for Immuno-Oncology, Medical Oncology and Immunotherapy, Department of Oncology, University Hospital of Siena, Siena, Italy
| | - Giuseppe Matarese
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), Naples, Italy.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Luigi Racioppi
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy.,Division of Hematological Malignancies and Cellular Therapy, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Giuseppina Ruggiero
- Dipartimento di Scienze Mediche Traslazionali, Università di Napoli "Federico II", Naples, Italy
| | - Giuseppe Terrazzano
- Dipartimento di Scienze Mediche Traslazionali, Università di Napoli "Federico II", Naples, Italy.,Dipartimento di Scienze, Università della Basilicata, Potenza, Italy
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Ryu D, Kim SJ, Hong Y, Jo A, Kim N, Kim HJ, Lee HO, Kim K, Park WY. Alterations in the Transcriptional Programs of Myeloma Cells and the Microenvironment during Extramedullary Progression Affect Proliferation and Immune Evasion. Clin Cancer Res 2019; 26:935-944. [PMID: 31558476 DOI: 10.1158/1078-0432.ccr-19-0694] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/02/2019] [Accepted: 09/23/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE In multiple myeloma, extramedullary progression is associated with treatment resistance and a high mortality rate. To understand the molecular mechanisms controlling the devastating progression of myeloma, we applied single-cell RNA-sequencing (RNA-seq) to myeloma in the bone marrow and myelomatous pleural effusions or ascites. EXPERIMENTAL DESIGN Bone marrow or extramedullary myeloma samples were collected from 15 patients and subjected to single-cell RNA-seq. The single-cell transcriptome data of malignant plasma cells and the surrounding immune microenvironment were analyzed. RESULTS Comparisons of single-cell transcriptomes revealed the systematic activation of proliferation, antigen presentation, proteasomes, glycolysis, and oxidative phosphorylation pathways in extramedullary myeloma cells. The myeloma cells expressed multiple combinations of growth factors and receptors, suggesting autonomous and pleiotropic growth potential at the single-cell level. Comparisons of the tumor microenvironment revealed the presence of cytotoxic T lymphocytes and natural killer (NK) cells in both the bone marrow and extramedullary ascites, demonstrating a gene-expression phenotype indicative of functional compromise. In parallel, isolated myeloma cells persistently expressed class I MHC molecules and upregulated inhibitory molecules for cytotoxic T and NK cells. CONCLUSIONS These data suggest that myeloma cells are equipped with specialized immune evasion mechanisms in cytotoxic microenvironments. Taken together, single-cell transcriptome analysis revealed transcriptional programs associated with aggressive myeloma progression that support autonomous cell proliferation and immune evasion.
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Affiliation(s)
- Daeun Ryu
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sunkyunkwan University School of Medicine, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seok Jin Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yourae Hong
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea
| | - Areum Jo
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sunkyunkwan University School of Medicine, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nayoung Kim
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sunkyunkwan University School of Medicine, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee-Jin Kim
- Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hae-Ock Lee
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea. .,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sunkyunkwan University School of Medicine, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kihyun Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - Woong-Yang Park
- Samsung Genome Institute, Samsung Medical Center, Seoul, Korea. .,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sunkyunkwan University School of Medicine, Seoul, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul, Korea
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Ogg G, Cerundolo V, McMichael AJ. Capturing the antigen landscape: HLA-E, CD1 and MR1. Curr Opin Immunol 2019; 59:121-129. [PMID: 31445404 DOI: 10.1016/j.coi.2019.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/12/2019] [Accepted: 07/18/2019] [Indexed: 12/15/2022]
Abstract
T cell receptor (TCR) recognition of antigens presented by relatively non-polymorphic MHC-like molecules is emerging as a significant contributor to health and disease. These evolutionarily ancient pathways have been inappropriately labelled 'non-conventional' because their roles were discovered after viral-specific peptide presentation by polymorphic MHC class I molecules. We suggest that these pathways are complementary to mainstream peptide presentation. HLA-E, CD1 and MR1 can present diverse self and foreign antigens to TCRs and therefore contribute to tissue homeostasis, pathogen defence, inflammation and immune responses to cancer. Despite presenting different classes of antigens, they share many features and are under common selective pressures. Through understanding their roles in disease, therapeutic manipulation for disease prevention and treatment should become possible.
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Affiliation(s)
- Graham Ogg
- MRC Human Immunology Unit, and Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | | | - Andrew J McMichael
- Nuffield Department of Medicine Research Building, University of Oxford, UK.
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5
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Abstract
MTB ranks as the first worldwide pathogen latently infecting one third of the population and the second leading cause of death from a single infectious agent, after the human immunodeficiency virus (HIV). The development of vigorous and apparently appropriate immune response upon infection with M. tuberculosis in humans and experimental animals conflict with failure to eradicate the pathogen itself and with its ability to undergo clinical latency from which it may exit. From a clinical standpoint, our views on MTB infection may take advantage from updating the overall perspective, that has quite changed over the last decade, following remarkable advances in our understanding of the manipulation of the immune system by M. tuberculosis and of the role of innate components of the immune response, including macrophages, neutrophils, dendritic cells and NK cells in the initial spread of MTB and its exit from latency. Scope of this review is to highlight the major mechanisms of MTB escape from immune control and to provide a supplementary translational perspective for the interpretation of innate immune mechanisms with particular impact on clinical aspects.
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6
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Kasmar AG, van Rhijn I, Cheng TY, Turner M, Seshadri C, Schiefner A, Kalathur RC, Annand JW, de Jong A, Shires J, Leon L, Brenner M, Wilson IA, Altman JD, Moody DB. CD1b tetramers bind αβ T cell receptors to identify a mycobacterial glycolipid-reactive T cell repertoire in humans. ACTA ACUST UNITED AC 2011; 208:1741-7. [PMID: 21807869 PMCID: PMC3171094 DOI: 10.1084/jem.20110665] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Glucose monomycolate–loaded CD1b tetramers identify a subset of CD4+ T cells in patients with Mycobacterium tuberculosis infection. Microbial lipids activate T cells by binding directly to CD1 and T cell receptors (TCRs) or by indirect effects on antigen-presenting cells involving induction of lipid autoantigens, CD1 transcription, or cytokine release. To distinguish among direct and indirect mechanisms, we developed fluorescent human CD1b tetramers and measured T cell staining. CD1b tetramer staining of T cells requires glucose monomycolate (GMM) antigens, is specific for TCR structure, and is blocked by a recombinant clonotypic TCR comprised of TRAV17 and TRBV4-1, proving that CD1b–glycolipid complexes bind the TCR. GMM-loaded tetramers brightly stain a small subpopulation of blood-derived cells from humans infected with Mycobacterium tuberculosis, providing direct detection of a CD1b-reactive T cell repertoire. Polyclonal T cells from patients sorted with tetramers are activated by GMM antigens presented by CD1b. Whereas prior studies emphasized CD8+ and CD4−CD8− CD1b-restricted clones, CD1b tetramer-based studies show that nearly all cells express the CD4 co-receptor. These findings prove a cognate mechanism whereby CD1b–glycolipid complexes bind to TCRs. CD1b tetramers detect a natural CD1b-restricted T cell repertoire ex vivo with unexpected features, opening a new investigative path to study the human CD1 system.
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Affiliation(s)
- Anne G Kasmar
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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7
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Stelin S, Ramakrishan H, Talwar A, Arun KV, Kumar TSS. Immunohistological analysis of CD1a langerhans cells and CD57 natural killer cells in healthy and diseased human gingival tissue: A comparative study. J Indian Soc Periodontol 2011; 13:150-4. [PMID: 20379413 PMCID: PMC2848786 DOI: 10.4103/0972-124x.60228] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Accepted: 09/15/2009] [Indexed: 12/11/2022] Open
Abstract
Background: Cell interaction between dendritic cells (DC) and natural killer (NK) cells in the periodontal milieu is not yet fully known, although these cells are individually known to contribute to the pathogenesis of periodontal disease. Materials and Methods: Fifty subjects (25 males and 25 females) were included in the study. The subjects were divided into three groups: Group A comprised 16 subjects with clinically healthy gingiva; group B 17 subjects with gingivitis; and group C 17 subjects with gingivitis; and group C 17 subjects with moderate periodontitis (PPD ≥ 5 mm and CAL ≥ 3 mm in at least six sites). Gingival samples were collected and immunohistochemical study was done using CD57 and CD1a antibody. Statistical analysis was done using analysis of variance (ANOVA), followed by Tukey-Kramer multiple comparison for CD1a and Tukey's highly significant difference (HSD) test for CD57. Results and Conclusion: The study showed an inverse relationship between the CD1a+ (langerhans) cells and CD57+ (natural killer) cells. There was a significant increase in CD57+ cells and reduction in CD1a levels as periodontal disease progressed. The significant reduction in CD1a levels in periodontal disease when compared to health could possibly be a result of NK cells down regulating it. Reduction in CD1a levels may result in a low inflammatory response subsequently resulting in tissue destruction.
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Affiliation(s)
- Sahaya Stelin
- Department of Periodontics, Ragas Dental College and Hospital, Uthandi, Chennai, India
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8
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Houser BL, Tilburgs T, Hill J, Nicotra ML, Strominger JL. Two unique human decidual macrophage populations. THE JOURNAL OF IMMUNOLOGY 2011; 186:2633-42. [PMID: 21257965 DOI: 10.4049/jimmunol.1003153] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Several important events occur at the maternal-fetal interface, including generation of maternal-fetal tolerance, remodeling of the uterine smooth muscle and its spiral arteries and glands, and placental construction. Fetal-derived extravillous trophoblasts come in direct contact with maternal decidual leukocytes. Macrophages represent ∼20% of the leukocytes at this interface. In this study, two distinct subsets of CD14(+) decidual macrophages (dMs) are found to be present in first-trimester decidual tissue, CD11c(HI) and CD11c(LO). Gene expression analysis by RNA microarray revealed that 379 probes were differentially expressed between these two populations. Analysis of the two subsets revealed several clusters of coregulated genes that suggest distinct functions for these subsets in tissue remodeling, growth, and development. CD11c(HI) dMs express genes associated with lipid metabolism and inflammation, whereas CD11c(LO) dMs express genes associated with extracellular matrix formation, muscle regulation, and tissue growth. The CD11c(HI) dMs also differ from CD11c(LO) dMs in their ability to process protein Ag and are likely to be the major APCs in the decidua. Moreover, these populations each secrete both proinflammatory and anti-inflammatory cytokines that may contribute to the balance that establishes fetal-maternal tolerance. Thus, they do not fit the conventional M1/M2 categorization.
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Affiliation(s)
- Brandy L Houser
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA
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9
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La Rocca R, Fulciniti M, Lakshmikanth T, Mesuraca M, Ali TH, Mazzei V, Amodio N, Catalano L, Rotoli B, Ouerfelli O, Grieco M, Gulletta E, Bond HM, Morrone G, Ferrone S, Carbone E. Early hematopoietic zinc finger protein prevents tumor cell recognition by natural killer cells. THE JOURNAL OF IMMUNOLOGY 2009; 182:4529-37. [PMID: 19342626 DOI: 10.4049/jimmunol.0802109] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Early hematopoietic zinc finger/zinc finger protein 521 (EHZF/ZNF521) is a novel zinc finger protein expressed in hematopoietic stem and progenitor cells and is down-regulated during their differentiation. Its transcript is also abundant in some hematopoietic malignancies. Analysis of the changes in the antigenic profile of cells transfected with EHZF cDNA revealed up-regulation of HLA class I cell surface expression. This phenotypic change was associated with an increased level of HLA class I H chain, in absence of detectable changes in the expression of other Ag-processing machinery components. Enhanced resistance of target cells to NK cell-mediated cytotoxicity was induced by enforced expression of EHZF in the cervical carcinoma cell line HeLa and in the B lymphoblastoid cell line IM9. Preincubation of transfected cells with HLA class I Ag-specific mAb restored target cell susceptibility to NK cell-mediated lysis, indicating a specific role for HLA class I Ag up-regulation in the NK resistance induced by EHZF. A potential clinical significance of these findings is further suggested by the inverse correlation between EHZF and MHC class I expression levels, and autologous NK susceptibility of freshly explanted multiple myeloma cells.
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Affiliation(s)
- Rosanna La Rocca
- Department of Experimental and Clinical Medicine G Salvatore, University of Catanzaro Magna Graecia, Catanzaro, Italy
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10
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Ruggiero G, Sica M, Luciano L, Savoia F, Cosentini E, Alfinito F, Terrazzano G. A case of myelodysplastic syndrome associated with CD14(+)CD56(+) monocytosis, expansion of NK lymphocytes and defect of HLA-E expression. Leuk Res 2009; 33:181-5. [PMID: 18440633 DOI: 10.1016/j.leukres.2008.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 02/26/2008] [Accepted: 03/19/2008] [Indexed: 11/27/2022]
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11
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Terrazzano G, Sica M, Gianfrani C, Mazzarella G, Maurano F, De Giulio B, de Saint-Mezard S, Zanzi D, Maiuri L, Londei M, Jabri B, Troncone R, Auricchio S, Zappacosta S, Carbone E. Gliadin regulates the NK-dendritic cell cross-talk by HLA-E surface stabilization. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2007; 179:372-81. [PMID: 17579058 DOI: 10.4049/jimmunol.179.1.372] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We analyzed the autologous NK cell interaction with gliadin-presenting dendritic cells. Gliadin is the known Ag priming the celiac disease (CD) pathogenesis. We demonstrate that gliadin prevents immature dendritic cells (iDCs) elimination by NK cells. Furthermore, cooperation between human NK cells-iDCs and T cells increases IFN-gamma production of anti-gliadin immune response. Gliadin fractions were analyzed for their capability to stabilize HLA-E molecules. The alpha and omega fractions conferred the protection from NK cell lysis to iDCs and increased their HLA-E expression. Gliadin pancreatic enzyme digest and a peptide derived from gliadin alpha increased HLA-E levels on murine RMA-S/HLA-E-transfected cells. Analysis of HLA-E expression in the small intestinal mucosa of gluten-containing diet celiac patients and organ culture experiments confirmed the in vitro data.
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Affiliation(s)
- Giuseppe Terrazzano
- Department of Cellular and Molecular Biology and Pathology, University Federico II, Naples, Italy.
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12
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Campos-Martín Y, Colmenares M, Gozalbo-López B, López-Núñez M, Savage PB, Martínez-Naves E. Immature human dendritic cells infected with Leishmania infantum are resistant to NK-mediated cytolysis but are efficiently recognized by NKT cells. THE JOURNAL OF IMMUNOLOGY 2006; 176:6172-9. [PMID: 16670326 DOI: 10.4049/jimmunol.176.10.6172] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Dendritic cells (DC) play an important role in innate and adaptive immunity, interacting with T cells, NK, and NKT cells. A critical step in the interaction of the parasitic protozoa Leishmania with their host is the evasion of both innate and adaptive immunity, producing a long-lasting chronic infection. There is growing evidence that these parasites can modify the Ag-presenting and immunoregulatory functions of DCs. The cells and mechanisms involved in innate immune response against Leishmania are still poorly understood. In this study, we investigated how Leishmania infantum infection affects DC interactions with NK and invariant NKT (iNKTs) cells in humans. We found that infected immature DCs (iDCs) do not up-regulate HLA class I molecules. Despite this, iDCs become resistant to killing mediated by autologous NK cells due to the up-regulation of HLA-E expression, which protects target cells from NK-mediated lysis through interaction with the inhibitory receptor CD94/NKG2A. Furthermore, iDCs infected with L. infantum up-regulate CD1d cell surface expression and consequently can be efficiently recognized and killed by iNKT cells that produce IFN-gamma. These data suggest that L. infantum could be able to evade NK recognition; in contrast, iNKTs may play an important role in the immune response against Leishmania.
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Affiliation(s)
- Yolanda Campos-Martín
- Unidad de Inmunología, Facultad de Medicina, Universidad Complutense, Avenida Complutense s/n, 28040 Madrid, Spain
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13
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Walzer T, Dalod M, Robbins SH, Zitvogel L, Vivier E. Natural-killer cells and dendritic cells: "l'union fait la force". Blood 2005; 106:2252-8. [PMID: 15933055 DOI: 10.1182/blood-2005-03-1154] [Citation(s) in RCA: 432] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Several recent publications have focused on the newly described interactions between natural-killer (NK) cells and dendritic cells (DCs). Activated NK cells induce DC maturation either directly or in synergy with suboptimal levels of microbial signals. Immature DCs appear susceptible to autologous NK-cell-mediated cytolysis while mature DCs are protected. NK-cell-induced DC activation is dependent on both tumor necrosis factor-alpha (TNF-alpha)/interferon-gamma (IFN-gamma) secretion and a cell-cell contact involving NKp30. In vitro, interleukin-12 (IL-12)/IL-18, IL-15, and IFN-alpha/beta production by activated DCs enhance, in turn, NK-cell IFN-gamma production, proliferation, and cytotoxic potential, respectively. In vivo, NK-cell/DC interactions may occur in lymphoid organs as well as in nonlymphoid tissues, and their consequences are multiple. By inducing DC activation, NK-cell activation induced by tumor cells can indirectly promote antitumoral T-cell responses. Reciprocally, DCs activated through Toll-like receptors (TLRs) induce potent NK-cell activation in antiviral responses. Thus, DCs and NK cells are equipped with complementary sets of receptors that allow the recognition of various pathogenic agents, emphasizing the role of NK-cell/DC crosstalk in the coordination of innate and adaptive immune responses.
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Affiliation(s)
- Thierry Walzer
- Centre d'Immunologie de Marseille-Luminy, INSERM-CNRS-Univ. Méditerranée, Campus de Luminy, Marseille, France.
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14
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Pacheco-Castro A, Martín-Fernández JM, Millán R, Sanal O, Allende L, Regueiro JR. Toward gene therapy for human CD3 deficiencies. Hum Gene Ther 2004; 14:1653-61. [PMID: 14633407 DOI: 10.1089/104303403322542293] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The CD3 subunits of the T cell receptor-CD3 complex (TCR-CD3) help to regulate surface TCR-CD3 expression, and participate in signal transduction leading to intrathymic selection and peripheral antigen recognition by T lymphocytes. Humans who lack individual CD3 chains show impairments in the expression and activation-induced downregulation of TCR-CD3, and the defective immune responses that result may be lethal. We have investigated delivery of a normal CD3 chain to treat disorders of this type. Retroviral transduction of CD3gamma into CD3gamma-deficient peripheral blood T lymphocytes from two unrelated patients selectively corrected the observed TCR-CD3 expression and downregulation defects, but unexpectedly seemed to cause adverse effects that can be explained by an autoreactive recognition mechanism. These data support the feasibility of gene therapy for human CD3 deficiencies, but also suggest that gene transfer into postthymic lymphocytes carrying mutations on T cell recognition or activation pathways may disrupt their intrathymic calibration and become harmful to the host.
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Affiliation(s)
- A Pacheco-Castro
- Inmunología, Facultad de Medicina, Universidad Complutense, 28040 Madrid, Spain
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15
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Campos-Martín Y, Gómez del Moral M, Gozalbo-López B, Suela J, Martínez-Naves E. Expression of Human CD1d Molecules Protects Target Cells from NK Cell-Mediated Cytolysis. THE JOURNAL OF IMMUNOLOGY 2004; 172:7297-305. [PMID: 15187105 DOI: 10.4049/jimmunol.172.12.7297] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The cytotoxic activity of NK cells can be inhibited by classical and nonclassical MHC molecules. The CD1 system is formed by a family of glycoproteins that are related to classical MHC. CD1a, b, and c molecules present lipids or glycolipids to T cells and are involved in defense against microbial infections, especially mycobacteria. It has been shown recently that these molecules can inhibit target cell lysis by human NK cells. It has also been shown that mouse CD1d molecules can protect cells from NK cell-mediated cytotoxicity. In the present study, we describe how human CD1d, orthologous to murine CD1 molecules, can inhibit NK cell-mediated cytolysis. We have expressed CD1d in the HLA class I-deficient cell lines L721.221 and C1R. The inhibitory effect is observed when effector NK cells from different donors are used, as well as in different cell lines with NK activity. The inhibitory effect was reversed by incubating the target cells with a mAb specific for human CD1d. Incubation of target cells with the ligands for CD1d, alpha-galactosylceramide (alpha-GalCer), and beta-GalCer abolishes the protective effect of CD1d in our in vitro killing assays. Staining the effector cells using CD1d tetramers loaded with alpha-GalCer was negative, suggesting that the putative inhibitory receptor does not recognize CD1d molecules loaded with alpha-GalCer.
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Affiliation(s)
- Yolanda Campos-Martín
- Unidad de Inmunología, Facultad de Medicina, Universidad Complutense, Avenida Complutense s/n, 28040 Madrid, Spain
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16
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Dornand J, Lafont V, Oliaro J, Terraza A, Castaneda-Roldan E, Liautard JP. Impairment of intramacrophagic Brucella suis multiplication by human natural killer cells through a contact-dependent mechanism. Infect Immun 2004; 72:2303-11. [PMID: 15039355 PMCID: PMC375199 DOI: 10.1128/iai.72.4.2303-2311.2004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Brucella spp. are facultative intracellular bacteria that can establish themselves and cause chronic disease in humans and animals. NK cells play a key role in host defense. They are implicated in an early immune response to a variety of pathogens. However, it was shown that they do not control Brucella infection in mice. On the other hand, NK cell activity is impaired in patients with acute brucellosis, and recently it was demonstrated that human NK cells mediate the killing of intramacrophagic Mycobacterium tuberculosis in in vitro infection. Therefore, we have analyzed the behavior of Brucella suis infecting isolated human macrophages in the presence of syngeneic NK cells. We show that (i) NK cells impair the intramacrophagic development of B. suis, a phenomenon enhanced by NK cell activators, such as interleukin-2; (ii) NK cells cultured in the presence of infected macrophages are highly activated and secrete gamma interferon and tumor necrosis factor alpha; (iii) impairment of bacterial multiplication inside infected cells is marginally associated with the cytokines produced during the early phase of macrophage-NK cell cocultures; (iv) direct cell-to-cell contact is required for NK cells to mediate the inhibition of B. suis development; and (v) inhibition of B. suis development results from an induction of NK cell cytotoxicity against infected macrophages. Altogether, these findings show that NK cells could participate early in controlling the intramacrophagic development of B. suis in humans. It seems thus reasonable to hypothesize a role for NK cells in the control of human brucellosis. However, by impairing the activity of these cells in the acute phase of the illness, the pathogen should avoid this control.
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Affiliation(s)
- Jacques Dornand
- INSERM U431, Université de Montpellier 2, 34095 Montpellier, France.
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17
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Huang MMS, Borszcz P, Sidobre S, Kronenberg M, Kane KP. CD1d1 Displayed on Cell Size Beads Identifies and Enriches an NK Cell Population Negatively Regulated by CD1d1. THE JOURNAL OF IMMUNOLOGY 2004; 172:5304-12. [PMID: 15100269 DOI: 10.4049/jimmunol.172.9.5304] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
NK cells destroy microbe-infected cells while sparing healthy cells, and are controlled, in part, by inhibitory receptors specific for class I Ag-presenting molecules. CD1d1, a beta(2)-microglobulin-associated class I-like molecule, binds glycolipids and stimulates NKT cells. We previously demonstrated that target cell lysis by IL-2-activated mouse NK cells is inhibited by target cell expression of CD1d1, suggesting that IL-2-activated NK cells may express a CD1d1-specific inhibitory receptor. We now report that a significant subset of mouse IL-2-activated NK cells specifically binds cell size beads displaying either naturally expressed or recombinant CD1d1. In contrast, although tetramers of soluble recombinant CD1d1 loaded with alpha-galactosylceramide identify NKT cells, binding of this reagent to resting or IL-2-activated NK cells was undetectable, even with activated NK cells sorted with CD1d1 beads. Cytotoxicity by the CD1d1 bead-separated NK subset was strongly inhibited by CD1d1, compared with the NK cell subset not bound to CD1d1 beads. An Ab that blocks NKT cell recognition of CD1d1 also reverses CD1d1 inhibition of NK lysis, suggesting that TCRs of NKT cells and NK inhibitory receptor(s) may interact with a similar site on CD1d1. These results provide direct evidence for a physical interaction of NK cells with CD1d1, mediated by a functional, CD1d1-specific low-affinity inhibitory NK receptor. Display of ligands on cell size beads to maximize multivalent interaction may offer an alternative approach to examine NK cell receptor-ligand interactions, particularly those of lower expression and/or lower affinity/avidity that may go undetected using tetrameric reagents.
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MESH Headings
- Animals
- Antibodies, Blocking/pharmacology
- Antigens, CD1/biosynthesis
- Antigens, CD1/immunology
- Antigens, CD1/metabolism
- Antigens, CD1/physiology
- Antigens, CD1d
- Cell Communication/immunology
- Cell Line, Tumor
- Cell Size
- Cells, Cultured
- Cytotoxicity, Immunologic/immunology
- Down-Regulation/immunology
- Female
- Galactosylceramides/metabolism
- Immunosuppressive Agents/immunology
- Immunosuppressive Agents/metabolism
- Immunosuppressive Agents/pharmacology
- Interleukin-2/pharmacology
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lymphocyte Activation/immunology
- Lymphocyte Subsets/cytology
- Lymphocyte Subsets/immunology
- Lymphocyte Subsets/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Microspheres
- Protein Binding/immunology
- Receptors, Immunologic/antagonists & inhibitors
- Receptors, Immunologic/biosynthesis
- Receptors, Immunologic/physiology
- Receptors, KIR
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
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Affiliation(s)
- Michael M S Huang
- Department of Medical Microbiology and Immunology, Faculty of Medicine, University of Alberta, Edmonton, Alberta, Canada
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18
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Terrazzano G, Pisanti S, Grimaldi S, Sica M, Fontana S, Carbone E, Zappacosta S, Ruggiero G. Interaction Between Natural Killer and Dendritic Cells: the Role of CD40, CD80 and Major Histocompatibility Complex Class I Molecules in Cytotoxicity Induction and Interferon-gamma Production. Scand J Immunol 2004; 59:356-62. [PMID: 15049779 DOI: 10.1111/j.0300-9475.2003.01387.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This study focuses on the differential role of CD40 and CD80 costimulatory molecules and major histocompatibility complex class I (MHC-I) antigens in the regulation of the interplay between dendritic cells (DCs) and interleukin (IL)-2-activated human natural killer (NK) lymphocytes. Our data indicate that CD40 and CD80 molecules might play a preferential role in the induction of cytotoxic function but not in the interferon-gamma(IFN-gamma) production by human IL-2-activated NK effectors in the presence of autologous and allogeneic DCs. In addition, a critical role of CD94-dependent MHC-I recognition in the regulation of both IFN-gamma production and target cell lysis was shown in the functional interaction between NK and DCs.
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Affiliation(s)
- G Terrazzano
- Cattedra di Immunologia, Dipartimento di Biologia e Patologia Cellulare e Molecolare, Università di Napoli Federico II, Naples, Italy.
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19
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Cerboni C, Oberg L, Terrazzano G, Zappacosta S, Carbone E, Kärre K. Proliferative and cytotoxic response of human natural killer cells exposed to transporter associated with antigen-processing-deficient cells. Scand J Immunol 2004; 59:159-67. [PMID: 14871292 DOI: 10.1111/j.0300-9475.2004.01375.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In transporter associated with antigen-processing (TAP)-deficient patients affected by a severe downmodulation of human leucocyte antigen class I (HLA-I) molecules, natural killer (NK) cells have an increased expression of the inhibitory receptor CD94/NKG2A. Focusing our attention on NK cells, we have investigated the phenotype, function and proliferative response of peripheral blood lymphocytes (PBLs) derived from healthy donors after coculturing with TAP (T2)- or HLA-I-deficient (721.221) cell lines and their related HLA-I-expressing transfectants (T3 and DT360, respectively). After 4 days, NK cells cocultured with T2 cells had a threefold increased CD94 expression compared to NK cells cocultured with T3. This increase was due to proliferation of the CD56brightCD94bright subset. In contrast, expression of other inhibitory receptors [killer cell immunoglobulin (Ig)-like receptors] was variable during time and was not related to HLA-I molecules expressed by stimulating cells. Similar results were obtained using HLA-I-deficient cells (721.221). The PBLs cocultured for 4 days with T2 cells displayed enhanced cytotoxic responses. The results suggest that CD56brightCD94bright NK cells are induced to proliferate and kill in response to a TAP-deficient environment. The changes seen in the NK-cell compartment were partially contributed by T lymphocytes present in the coculture. These data could explain the increased CD94 expression and autoimmune manifestations observed in TAP-deficient patients.
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Affiliation(s)
- C Cerboni
- Microbiology and Tumor Biology Center, Karolinska Institutet, Stockholm, Sweden
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20
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Geldhof AB, Van Ginderachter JA, Liu Y, Noël W, Raes G, De Baetselier P. Antagonistic effect of NK cells on alternatively activated monocytes: a contribution of NK cells to CTL generation. Blood 2002; 100:4049-58. [PMID: 12393627 DOI: 10.1182/blood-2001-11-0106] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Natural killer (NK) cells fulfill essential accessory functions for the priming of antigen-specific cytotoxic T lymphocytes (CTLs). On the basis of a NKG2D-ligand-positive tumor model, we obtained results implicating NK-mediated regulatory as well as NK-mediated cytolytic activities in the initiation and persistence of CTL activity. Indeed, CD8(+) T-cell-dependent tumor rejection requires NK cell function in vivo, because tumors will progress both on depletion of NK cells or in the absence of optimal NK activity. Here we provide evidence that the absence of NK cells during subcutaneous tumor growth will abrogate generation of antitumor CTL responses and that this process can be linked to the expansion of alternatively activated monocytes. Indeed, our in vitro studies demonstrate that in splenic cultures from NK-deficient tumor-bearing mice, lack of type 1-associated cytokines correlates with the presence of type 2 (alternatively activated) monocytes and the production of type 2 cytokines. Furthermore, these type 2 monocyte-containing splenic adherent populations potently suppress subsequent memory CTL restimulation. We evaluated the role of NK lytic effector functions in the efficient switch of the immune system toward classical (type 1) activation by including differentially activated monocytic populations as targets in cytotoxicity assays. The results indicate that the accessory function of NK cells depends partially on the ability of activated NK cells to preferentially engage type 2 antigen-presenting cells. Thus, when the immune system tends to be type 2 oriented, NK cells can drive an efficient type 2 --> type 1 switch in the population of antigen-presenting cells to provide signaling for the generation of CTLs.
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Affiliation(s)
- Anja B Geldhof
- Department of Cellular Immunology, Flanders Interuniversity Institute for Biotechnology, Vrije Universiteit Brussel, St Genesius Rode, Belgium.
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21
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Zheng C, Ostad M, Andersson M, Celsing F, Holm G, Sundblad A. Natural cytotoxicity to autologous antigen-pulsed dendritic cells in multiple myeloma. Br J Haematol 2002; 118:778-85. [PMID: 12181045 DOI: 10.1046/j.1365-2141.2002.03712.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To analyse autologous lymphocyte cytolytic activities of potential importance for cell-based immunotherapy in multiple myeloma (MM), in vitro differentiated dendritic cells (DCs) loaded with patient-specific monoclonal immunoglobulin (mIg) were used as autologous target cellsin cytotoxicity assays. Effector populations consisted of purified natural killer (NK) cells (CD56+, CD3-) and T cells (CD3+). The MM patients' NK cells cultured in the presence of interleukin 2 (IL-2) showed pronounced cytotoxic activity towards autologous mature DCs. Autologous MM DC targets displayed similar susceptibility to NK cell lysis, compared with allogeneic control DC targets, despite high surface expression of self major histocompatibility complex (MHC) antigens. However, some degree of classic MHC class I-mediated negative regulation was implicated in the NK-DC interactions, as indicated by class I blocking experiments. NK-mediated lysis was also discerned towards primary autologous MM cells. The results indicated that the major effector mechanism was mediated through the perforin-granzyme exocytosis pathway. In conclusion, NK cells from MM patients displayed significant and consistent cytotoxicity towards autologous mature DCs, suggesting that innate immunity could be implicated in MM and may influence the outcome of the administration of tumour antigen-pulsed DCs in treatment trials.
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Affiliation(s)
- Chengyun Zheng
- Division of Hematology, Centre for Molecular Medicine, Karolinska Institutet and Hospital, Stockholm, Sweden
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22
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Gumperz JE, Miyake S, Yamamura T, Brenner MB. Functionally distinct subsets of CD1d-restricted natural killer T cells revealed by CD1d tetramer staining. J Exp Med 2002; 195:625-36. [PMID: 11877485 PMCID: PMC2193772 DOI: 10.1084/jem.20011786] [Citation(s) in RCA: 591] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
CD1d-restricted natural killer (NK)T cells are known to potently secrete T helper (Th)1 and Th2 cytokines and to mediate cytolysis, but it is unclear how these contrasting functional activities are regulated. Using lipid antigen-loaded CD1d tetramers, we have distinguished two subsets of CD1d-restricted T cells in fresh peripheral blood that differ in cytokine production and cytotoxic activation. One subset, which was CD4(-), selectively produced the Th1 cytokines interferon gamma and tumor necrosis factor alpha, and expressed NKG2d, a marker associated with cytolysis of microbially infected and neoplastic cells. This subset up-regulated perforin after exposure to interleukin (IL)-2 or IL-12. In contrast, CD4(+) CD1d-restricted NKT cells potently produced both Th1 and Th2 cytokines, up-regulated perforin in response to stimulation by phorbol myristate acetate and ionomycin but not IL-2 or IL-12, and could be induced to express CD95L. Further, for both CD1d-restricted NKT cell subsets, we found that antigenic stimulation induced cytokine production but not perforin expression, whereas exposure to inflammatory factors enhanced perforin expression but did not stimulate cytokine production. These results show that the various activities of CD1d-restricted T cells in tumor rejection, autoimmune disease, and microbial infections could result from activation of functionally distinct subsets, and that inflammatory and antigenic stimuli may influence different effector functions.
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MESH Headings
- Animals
- Antigens, CD1/chemistry
- Antigens, CD1/physiology
- Antigens, CD1d
- Antigens, Surface/analysis
- Cytokines/biosynthesis
- Cytotoxicity, Immunologic
- Galactosylceramides/pharmacology
- Humans
- Killer Cells, Natural/immunology
- Lectins, C-Type
- Mice
- NK Cell Lectin-Like Receptor Subfamily B
- NK Cell Lectin-Like Receptor Subfamily K
- Receptors, Immunologic/analysis
- Receptors, Lymphocyte Homing/analysis
- Receptors, Natural Killer Cell
- Staining and Labeling
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Affiliation(s)
- Jenny E Gumperz
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, One Jimmy Fund Way, Boston, MA 02115, USA
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23
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Ferlazzo G, Semino C, Melioli G. HLA class I molecule expression is up-regulated during maturation of dendritic cells, protecting them from natural killer cell-mediated lysis. Immunol Lett 2001; 76:37-41. [PMID: 11222911 DOI: 10.1016/s0165-2478(00)00323-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
It has been widely demonstrated that natural killer (NK) cells are able to discriminate between normal and abnormal cells on the basis of the interaction of their NKRs with the MHC molecules expressed on the target cells. Recent studies showed that also normal dendritic cells are susceptible to NK cell-mediated lysis. In this work, the potential relationships between the expression of different surface molecules on both immature and mature DC and susceptibility to lysis have been investigated. The reduced density of HLA class I on the surface of immature DC resulted in the only permissive signal to NK cell mediated killing. On the contrary, the remarkable increase in HLA class I molecules detected during DC maturation was strictly related to the resistance to NK cell. Contemporary, no clear evidences of a role for other surface molecules modulated during DC maturation (CD80, CD83, CD86 and CD40), were obtained.
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Affiliation(s)
- G Ferlazzo
- Laboratorio di Immunoterapia Cellulare, Unità di Immunologia, Istituto Nazionale per la Ricerca sul Cancro, Centro di Biotecnologie Avanzate, Largo Rosanna Benzi, 10, 16132, Genova, Italy
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24
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Auchincloss H. Literature update 2000, part 1. Xenotransplantation 2000; 7:230-4. [PMID: 11021669 DOI: 10.1034/j.1399-3089.2000.00079.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- H Auchincloss
- Surgical Services, Massachusetts General Hospital, Boston 02114, USA
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