1
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Witalisz-Siepracka A, Denk CM, Zdársky B, Hofmann L, Edtmayer S, Harm T, Weiss S, Heindl K, Hessenberger M, Summer S, Dutta S, Casanova E, Obermair GJ, Győrffy B, Putz EM, Sill H, Stoiber D. STAT3 in acute myeloid leukemia facilitates natural killer cell-mediated surveillance. Front Immunol 2024; 15:1374068. [PMID: 39034990 PMCID: PMC11257888 DOI: 10.3389/fimmu.2024.1374068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 06/20/2024] [Indexed: 07/23/2024] Open
Abstract
Acute myeloid leukemia (AML) is a heterogenous disease characterized by the clonal expansion of myeloid progenitor cells. Despite recent advancements in the treatment of AML, relapse still remains a significant challenge, necessitating the development of innovative therapies to eliminate minimal residual disease. One promising approach to address these unmet clinical needs is natural killer (NK) cell immunotherapy. To implement such treatments effectively, it is vital to comprehend how AML cells escape the NK-cell surveillance. Signal transducer and activator of transcription 3 (STAT3), a component of the Janus kinase (JAK)-STAT signaling pathway, is well-known for its role in driving immune evasion in various cancer types. Nevertheless, the specific function of STAT3 in AML cell escape from NK cells has not been deeply investigated. In this study, we unravel a novel role of STAT3 in sensitizing AML cells to NK-cell surveillance. We demonstrate that STAT3-deficient AML cell lines are inefficiently eliminated by NK cells. Mechanistically, AML cells lacking STAT3 fail to form an immune synapse as efficiently as their wild-type counterparts due to significantly reduced surface expression of intercellular adhesion molecule 1 (ICAM-1). The impaired killing of STAT3-deficient cells can be rescued by ICAM-1 overexpression proving its central role in the observed phenotype. Importantly, analysis of our AML patient cohort revealed a positive correlation between ICAM1 and STAT3 expression suggesting a predominant role of STAT3 in ICAM-1 regulation in this disease. In line, high ICAM1 expression correlates with better survival of AML patients underscoring the translational relevance of our findings. Taken together, our data unveil a novel role of STAT3 in preventing AML cells from escaping NK-cell surveillance and highlight the STAT3/ICAM-1 axis as a potential biomarker for NK-cell therapies in AML.
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Affiliation(s)
- Agnieszka Witalisz-Siepracka
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Clio-Melina Denk
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Bernhard Zdársky
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Lorenz Hofmann
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Sophie Edtmayer
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Theresa Harm
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Stefanie Weiss
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Kerstin Heindl
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Manuel Hessenberger
- Division Physiology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Sabrina Summer
- Department for Biomedical Research, University for Continuing Education Krems, Krems, Austria
| | | | - Emilio Casanova
- Institute of Pharmacology, Center of Physiology and Pharmacology & Comprehensive Cancer Center (CCC), Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Gerald J. Obermair
- Division Physiology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Balázs Győrffy
- Department of Bioinformatics, Semmelweis University, Budapest, Hungary
- Department of Biophysics, Medical School, University of Pecs, Pecs, Hungary
- Cancer Biomarker Research Group, Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, Budapest, Hungary
| | - Eva Maria Putz
- St. Anna Children’s Cancer Research Institute (CCRI), Vienna, Austria
- Institute of Pharmacology, Center of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Heinz Sill
- Division of Hematology, Medical University of Graz, Graz, Austria
| | - Dagmar Stoiber
- Division Pharmacology, Department of Pharmacology, Physiology and Microbiology, Karl Landsteiner University of Health Sciences, Krems, Austria
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2
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Ligotti ME, Accardi G, Aiello A, Calabrò A, Caruso C, Corsale AM, Dieli F, Di Simone M, Meraviglia S, Candore G. Sicilian semi- and supercentenarians: age-related Tγδ cell immunophenotype contributes to longevity trait definition. Clin Exp Immunol 2024; 216:1-12. [PMID: 38066662 PMCID: PMC10929699 DOI: 10.1093/cei/uxad132] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/30/2023] [Accepted: 12/02/2023] [Indexed: 03/13/2024] Open
Abstract
The immune system of semi- (from ≥105 to <110 years old) and supercentenarians (≥110 years old), i.e. oldest centenarians, is thought to have characteristics that allow them to reach extreme longevity in relatively healthy status. Thus, we investigated variations of the two principal subsets of Tγδ, Vδ1, and Vδ2, and their functional subsets using the markers defining Tαβ cells, i.e. CD27, CD45RA, in a cohort of 28 women and 26 men (age range 19-110 years), including 11 long-living individuals (from >90 years old to<105 years old), and eight oldest centenarians (≥105 years old), all of them were previously analysed for Tαβ and NK cell immunophenotypes on the same blood sample collected on recruitment day. Naïve Vδ1 and Vδ2 cells showed an inverse relationship with age, particularly significant for Vδ1 cells. Terminally differentiated T subsets (TEMRA) were significantly increased in Vδ1 but not in Vδ2, with higher values observed in the oldest centenarians, although a great heterogeneity was observed. Both naïve and TEMRA Vδ1 and CD8+ Tαβ cell values from our previous study correlated highly significantly, which was not the case for CD4+ and Vδ2. Our findings on γδ TEMRA suggest that these changes are not unfavourable for centenarians, including the oldest ones, supporting the hypothesis that immune ageing should be considered as a differential adaptation rather than a general immune alteration. The increase in TEMRA Vδ1 and CD8+, as well as in NK, would represent immune mechanisms by which the oldest centenarians successfully adapt to a history of insults and achieve longevity.
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Affiliation(s)
- Mattia Emanuela Ligotti
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giulia Accardi
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Anna Aiello
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Anna Calabrò
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Calogero Caruso
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Anna Maria Corsale
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Marta Di Simone
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Serena Meraviglia
- Central Laboratory of Advanced Diagnosis and Biomedical Research, University Hospital "P. Giaccone", Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giuseppina Candore
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
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3
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Perez C, Plaza-Rojas L, Boucher JC, Nagy MZ, Kostenko E, Prajapati K, Burke B, Reyes MD, Austin AL, Zhang S, Le PT, Guevara-Patino JA. NKG2D receptor signaling shapes T cell thymic education. J Leukoc Biol 2024; 115:306-321. [PMID: 37949818 DOI: 10.1093/jleuko/qiad130] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 08/11/2023] [Accepted: 09/30/2023] [Indexed: 11/12/2023] Open
Abstract
The role of natural killer group 2D (NKG2D) in peripheral T cells as a costimulatory receptor is well established. However, its contribution to T cell thymic education and functional imprint is unknown. Here, we report significant changes in development, receptor signaling, transcriptional program, and function in T cells from mice lacking NKG2D signaling. In C57BL/6 (B6) and OT-I mice, we found that NKG2D deficiency results in Vβ chain usage changes and stagnation of the double-positive stage in thymic T cell development. We found that the expression of CD5 and CD45 in thymocytes from NKG2D deficient mice were reduced, indicating a direct influence of NKG2D on the strength of T cell receptor (TCR) signaling during the developmental stage of T cells. Depicting the functional consequences of NKG2D, peripheral OT-I NKG2D-deficient cells were unresponsive to ovalbumin peptide stimulation. Paradoxically, while αCD3/CD28 agonist antibodies led to phenotypic T cell activation, their ability to produce cytokines remained severely compromised. We found that OT-I NKG2D-deficient cells activate STAT5 in response to interleukin-15 but were unable to phosphorylate ERK or S6 upon TCR engagement, underpinning a defect in TCR signaling. Finally, we showed that NKG2D is expressed in mouse and human thymic T cells at the double-negative stage, suggesting an evolutionarily conserved function during T cell development. The data presented in this study indicate that NKG2D impacts thymic T cell development at a fundamental level by reducing the TCR threshold and affecting the functional imprint of the thymic progeny. In summary, understanding the impact of NKG2D on thymic T cell development and TCR signaling contributes to our knowledge of immune system regulation, immune dysregulation, and the design of immunotherapies.
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Affiliation(s)
- Cynthia Perez
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Lourdes Plaza-Rojas
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Justin C Boucher
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Mate Z Nagy
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Elena Kostenko
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Kushal Prajapati
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Brianna Burke
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Michael Delos Reyes
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Anna L Austin
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Shubin Zhang
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Microbiology and Immunology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Phong T Le
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Microbiology and Immunology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - José A Guevara-Patino
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
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4
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Zhang YW. Designing High Binding Affinity Peptides for MHC Class I Using MAM: An In Silico Approach. Methods Mol Biol 2024; 2809:263-274. [PMID: 38907903 DOI: 10.1007/978-1-0716-3874-3_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
The availability of extensive MHC-peptide binding data has boosted machine learning-based approaches for predicting binding affinity and identifying binding motifs. These computational tools leverage the wealth of binding data to extract essential features and generate a multitude of potential peptides, thereby significantly reducing the cost and time required for experimental procedures. MAM is one such tool for predicting the MHC-I-peptide binding affinity, extracting binding motifs, and generating new peptides with high affinity. This manuscript provides step-by-step guidance on installing, configuring, and executing MAM while also discussing the best practices when using this tool.
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Affiliation(s)
- Yu Wei Zhang
- Department of Computer Science, City University of Hong Kong, Kowloon Tong, Hong Kong.
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5
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Ash S, Askenasy N. Immunotherapy for neuroblastoma by hematopoietic cell transplantation and post-transplant immunomodulation. Crit Rev Oncol Hematol 2023; 185:103956. [PMID: 36893946 DOI: 10.1016/j.critrevonc.2023.103956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 12/14/2022] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
Neuroblastoma represents a relatively common childhood tumor that imposes therapeutic difficulties. High risk neuroblastoma patients have poor prognosis, display limited response to radiochemotherapy and may be treated by hematopoietic cell transplantation. Allogeneic and haploidentical transplants have the distinct advantage of reinstitution of immune surveillance, reinforced by antigenic barriers. The key factors favorable to ignition of potent anti-tumor reactions are transition to adaptive immunity, recovery from lymphopenia and removal of inhibitory signals that inactivate immune cells at the local and systemic levels. Post-transplant immunomodulation may further foster anti-tumor reactivity, with positive but transient impact of infusions of lymphocytes and natural killer cells both from the donor, the recipient or third party. The most promising approaches include introduction of antigen-presenting cells in early post-transplant stages and neutralization of inhibitory signals. Further studies will likely shed light on the nature and actions of suppressor factors within tumor stroma and at the systemic level.
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Affiliation(s)
- Shifra Ash
- Department of Pediatric Hematology-Oncology, Rambam Medical Center, Haifa, Israel; Frankel Laboratory of Bone Marrow Transplantation, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.
| | - Nadir Askenasy
- Frankel Laboratory of Bone Marrow Transplantation, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
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6
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Structural Polymorphism of Guanine Quadruplex-Containing Regions in Human Promoters. Int J Mol Sci 2022; 23:ijms232416020. [PMID: 36555662 PMCID: PMC9786302 DOI: 10.3390/ijms232416020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Intramolecular guanine quadruplexes (G4s) are non-canonical nucleic acid structures formed by four guanine (G)-rich tracts that assemble into a core of stacked planar tetrads. G4-forming DNA sequences are enriched in gene promoters and are implicated in the control of gene expression. Most G4-forming DNA contains more G residues than can simultaneously be incorporated into the core resulting in a variety of different possible G4 structures. Although this kind of structural polymorphism is well recognized in the literature, there remain unanswered questions regarding possible connections between G4 polymorphism and biological function. Here we report a detailed bioinformatic survey of G4 polymorphism in human gene promoter regions. Our analysis is based on identifying G4-containing regions (G4CRs), which we define as stretches of DNA in which every residue can form part of a G4. We found that G4CRs with higher degrees of polymorphism are more tightly clustered near transcription sites and tend to contain G4s with shorter loops and bulges. Furthermore, we found that G4CRs with well-characterized biological functions tended to be longer and more polymorphic than genome-wide averages. These results represent new evidence linking G4 polymorphism to biological function and provide new criteria for identifying biologically relevant G4-forming regions from genomic data.
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7
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Liu X, Xing H, Liu H, Chen J. Current status and future perspectives on immunotherapy in neoadjuvant therapy of resectable non-small cell lung cancer. Asia Pac J Clin Oncol 2021; 18:335-343. [PMID: 34811893 DOI: 10.1111/ajco.13665] [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: 06/17/2021] [Accepted: 08/18/2021] [Indexed: 12/25/2022]
Abstract
Resectable non-small cell lung cancer (NSCLC) is defined as stage I-II, and some locally advanced (stage III) tumor. Despite the associated relatively high recurrence rates after surgery, surgical treatment remains the standard treatment for patients with early-stage NSCLC. At present, neoadjuvant therapy is becoming an increasingly popular therapeutic strategy for resectable NSCLC. However, studies have reported that neoadjuvant chemotherapy only slightly improves recurrence rates, making it inadequate for extending patient survival. The significant survival benefits of immunotherapy in advanced NSCLC have greatly stimulated researchers' interests in applying immune checkpoint inhibitors (ICIs) for treating early-stage resectable NSCLC. A few recent phase II radomized clinical trials suggested that ICIs yield better major pathologic response (MPR) rates than neoadjuvant chemotherapy alone, demonstrating their potential as alternatives to the existing fixed therapy pattern for early-stage NSCLC. Most initial studies regarding neoadjuvant immunotherapy selected MPR and pathologic complete response (pCR) as primary or secondary endpoints, leading to a significant reduction in the time and cost of research and development compared with the use of overall survival time and median survival time as endpoints. Meanwhile, to confirm these benefits, more phase III clinical trials are being conducted, and there is a growing demand for research on related problems, including the screening of population, formulation of treatment strategies, duration and course of immunotherapy, influence of neoadjuvant immunotherapy on the safety of surgery, standardization of treatment effect evaluation and pathologic evaluation, and ways to effectively identify pseudoprogression and avoid resultant misjudgment in surgery and adjuvant therapy.
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Affiliation(s)
- Xingyu Liu
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Anshan Road No.154, Heping District, Tianjin, 300052, China.,Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, P. R. China
| | - Huifang Xing
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Anshan Road No.154, Heping District, Tianjin, 300052, China.,Department of Geriatric Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, P. R. China
| | - Hongyu Liu
- Tianjin key laboratory of lung cancer metastasis and tumor microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Anshan Road No.154, Heping District, Tianjin, 450052, P. R. China
| | - Jun Chen
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Anshan Road No.154, Heping District, Tianjin, 300052, China.,Tianjin key laboratory of lung cancer metastasis and tumor microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Anshan Road No.154, Heping District, Tianjin, 450052, P. R. China
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8
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Lee GH, An HJ, Kim TH, Kim G, Park KS, Park H, Lee TH, Kwon AY. Clinical Impact of Natural Killer Group 2D Receptor Expression and That of Its Ligand in Ovarian Carcinomas: A Retrospective Study. Yonsei Med J 2021; 62:288-297. [PMID: 33779082 PMCID: PMC8007423 DOI: 10.3349/ymj.2021.62.4.288] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/06/2021] [Accepted: 01/26/2021] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Natural killer (NK) cells are innate immune cells with antitumor activity. NKG2D is the most important activating receptor expressed on the NK cell surface; this receptor binds to the ligands MICA/B and ULBPs to activate NK cells. The current study aimed to evaluate the expression of NKG2D by NK cells, and to the evaluate expression of its ligands in ovarian carcinomas; it also examined the clinical relevance of NK receptor/ligand expression by analyzing the relationship between expression, clinicopathological parameters, and prognosis. MATERIALS AND METHODS Formalin-fixed paraffin-embedded archival ovarian high-grade serous carcinoma (HGSC, n=79) tissue samples were used for tissue microarray analysis. The expressions of NK cell markers (CD56 and NKG2D) and NKG2D ligands (MICA/B, ULBP1, ULBP3, and ULBP2/5/6) in carcinoma tissues were evaluated by immunohistochemical staining, and the association between these results and clinical prognostic parameters was analyzed statistically. RESULTS ULBP1 was highly expressed in 51 cases (64.6%), and ULBP2/5/6 was highly expressed in 56 cases (70.9%) of HGSC. High expression of ULBP1 and ULBP2/5/6 was significantly associated with lower recurrence of HGSC, whereas high expression of ULBP3 was significantly associated with higher recurrence. Multivariate Cox regression analysis revealed that high expression of ULBP1 was associated with increased overall survival and a decreased hazard ratio (0.150, p=0.044), suggesting that it is an independent predictor of better survival. CONCLUSION High expression of ULBP1 predicts a better prognosis for HGSC, suggesting that ULBP1 expression could be a novel prognostic indicator in this subset of carcinomas.
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Affiliation(s)
- Gee Hoon Lee
- Department of Biomedical Science, CHA University School of Medicine, Seongnam, Korea
| | - Hee Jung An
- Institute for Clinical Research, CHA University School of Medicine, Seongnam, Korea
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Tae Hoen Kim
- Institute for Clinical Research, CHA University School of Medicine, Seongnam, Korea
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Gwangil Kim
- Institute for Clinical Research, CHA University School of Medicine, Seongnam, Korea
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Kyung Soon Park
- Department of Biomedical Science, CHA University School of Medicine, Seongnam, Korea
| | - Hyun Park
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Tae Ho Lee
- Department of Biomedical Science, CHA University School of Medicine, Seongnam, Korea
| | - Ah Young Kwon
- Institute for Clinical Research, CHA University School of Medicine, Seongnam, Korea
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
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9
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Morgan MA, Büning H, Sauer M, Schambach A. Use of Cell and Genome Modification Technologies to Generate Improved "Off-the-Shelf" CAR T and CAR NK Cells. Front Immunol 2020; 11:1965. [PMID: 32903482 PMCID: PMC7438733 DOI: 10.3389/fimmu.2020.01965] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/21/2020] [Indexed: 12/27/2022] Open
Abstract
The broad success of adoptive immunotherapy to treat human cancer has resulted in a paradigm shift in modern medicine. Modification of autologous and allogenic immune cells with chimeric antigen receptors (CAR) designed to target specific antigens on tumor cells has led to production of CAR T and CAR NK cell therapies, which are ever more commonly introduced into cancer patient treatment protocols. While allogenic T cells may offer advantages such as improved anti-tumor activity, they also carry the risk of adverse reactions like graft-versus-host disease. This risk can be mitigated by use of autologous immune cells, however, the time needed for T and/or NK cell isolation, modification and expansion may be too long for some patients. Thus, there is an urgent need for strategies to robustly produce “off-the-shelf” CAR T and CAR NK cells, which could be used as a bridging therapy between cancer diagnosis or relapse and allogeneic transplantation. Advances in genome modification technologies have accelerated the generation of designer cell therapy products, including development of “off-the-shelf” CAR T cells for cancer immunotherapy. The feasibility and safety of such approaches is currently tested in clinical trials. This review will describe cell sources for CAR-based therapies, provide background of current genome editing techniques and the applicability of these approaches for generation of universal “off-the-shelf” CAR T and NK cell therapeutics.
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Affiliation(s)
- Michael A Morgan
- Institute of Experimental Hematology, Hannover Medical School, Hanover, Germany.,REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, Hanover, Germany
| | - Hildegard Büning
- Institute of Experimental Hematology, Hannover Medical School, Hanover, Germany.,REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, Hanover, Germany
| | - Martin Sauer
- Department of Pediatric Hematology, Oncology, and Blood Stem Cell Transplantation, Hannover Medical School, Hanover, Germany
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, Hanover, Germany.,REBIRTH Research Center for Translational Regenerative Medicine, Hannover Medical School, Hanover, Germany.,Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
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10
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Xu W, Lau ZWX, Fulop T, Larbi A. The Aging of γδ T Cells. Cells 2020; 9:E1181. [PMID: 32397491 PMCID: PMC7290956 DOI: 10.3390/cells9051181] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/30/2020] [Accepted: 05/07/2020] [Indexed: 12/11/2022] Open
Abstract
In the coming decades, many developed countries in the world are expecting the "greying" of their populations. This phenomenon poses unprecedented challenges to healthcare systems. Aging is one of the most important risk factors for infections and a myriad of diseases such as cancer, cardiovascular and neurodegenerative diseases. A common denominator that is implicated in these diseases is the immune system. The immune system consists of the innate and adaptive arms that complement each other to provide the host with a holistic defense system. While the diverse interactions between multiple arms of the immune system are necessary for its function, this complexity is amplified in the aging immune system as each immune cell type is affected differently-resulting in a conundrum that is especially difficult to target. Furthermore, certain cell types, such as γδ T cells, do not fit categorically into the arms of innate or adaptive immunity. In this review, we will first introduce the human γδ T cell family and its ligands before discussing parallels in mice. By covering the ontogeny and homeostasis of γδ T cells during their lifespan, we will better capture their evolution and responses to age-related stressors. Finally, we will identify knowledge gaps within these topics that can advance our understanding of the relationship between γδ T cells and aging, as well as age-related diseases such as cancer.
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Affiliation(s)
- Weili Xu
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
| | - Zandrea Wan Xuan Lau
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
| | - Tamas Fulop
- Department of Geriatrics, Faculty of Medicine, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
| | - Anis Larbi
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
- Department of Geriatrics, Faculty of Medicine, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
- Department of Microbiology, National University of Singapore, Singapore 117597, Singapore
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11
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Dubois S, Feigenbaum L, Waldmann TA, Müller JR. NK cells prevent T cell lymphoma development in T cell receptor-transgenic mice. Cell Immunol 2020; 352:104081. [PMID: 32143838 DOI: 10.1016/j.cellimm.2020.104081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 01/16/2020] [Accepted: 02/26/2020] [Indexed: 02/06/2023]
Abstract
Mice that express a single transgenic T cell receptor have a low incidence of T cell lymphoma development. We investigated whether this tumor development is restricted by surveillance mechanisms that are exerted by IL-15-dependent cells. Lymphoma incidence was increased to between 30 and 60% when TCR transgenes were expressed in IL-15-deficient mice. Mice in which NK cells had been depleted genetically or with neutralizing antibodies allowed lymphoma growth while the absence of CD8 T cells was without consequence. Half of the emerged T cell lymphomas carried Notch1 mutations. The distinct phenotype of the lymphomas involved expression of PD1, CD30, CD24, the stress receptor ligand Mult1 and MHC class I down-regulation. NK cells were able to directly lyse lymphoma cells, and neutralizations of Mult1 and class I expression prevented NK cell degranulation. Together these data support an involvement of NK cells in tumor surveillance of nascent T cell lymphomas.
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Affiliation(s)
- Sigrid Dubois
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lionel Feigenbaum
- Science Applications International Corporation/Frederick, NCI-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA
| | - Thomas A Waldmann
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jürgen R Müller
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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12
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Toll-Like Receptors in Natural Killer Cells and Their Application for Immunotherapy. J Immunol Res 2020; 2020:2045860. [PMID: 32377528 PMCID: PMC7199539 DOI: 10.1155/2020/2045860] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 12/21/2019] [Indexed: 12/21/2022] Open
Abstract
Innate immunity represents the first barrier for host defense against microbial infection. Toll-like receptors (TLRs) are the most well-defined PRRs with respect to PAMP recognition and induction of innate immune responses. They recognize pathogen-associated molecular patterns (PAMPs) and trigger innate immune responses by inducing inflammatory cytokines, chemokines, antigen-presenting molecules, and costimulatory molecules. TLRs are expressed either on the cell surface or within endosomes of innate immune cells. NK cells are one of the innate immune cells and also express TLRs to recognize or respond to PAMPs. TLRs in NK cells induce the innate immune responses against bacterial and viral infections via inducing NK cytotoxicity and cytokine production. In this review, we will discuss the expression and cellular function of TLRs in NK cells and also introduce some therapeutic applications of TLR agonists for NK cell-mediated immunotherapy.
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13
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Tao K, He M, Tao F, Xu G, Ye M, Zheng Y, Li Y. Development of NKG2D-based chimeric antigen receptor-T cells for gastric cancer treatment. Cancer Chemother Pharmacol 2018; 82:815-827. [PMID: 30132099 DOI: 10.1007/s00280-018-3670-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/11/2018] [Indexed: 12/22/2022]
Abstract
Gastric cancer is the third leading cause of cancer-related mortalities worldwide and mostly incurable. It remains an urgent need for novel strategies in the management of patients with advanced gastric cancer. Chimeric antigen receptor (CAR) T therapy has shown unprecedented clinical success in hematological malignancies and potential utility is going on various solid tumors like gastric cancer. In this study, a broad expression of NKG2D ligands was observed in gastric cancer cell lines, making them suitable targets for gastric cancer therapy. T cells were engineered with an NKG2D-based second-generation CAR and the resulting NKG2D-CAR-T cells showed significantly increased cytolytic activity against gastric cancer compared to untransduced T cells. In vivo, these cells can significantly suppressed the growth of established gastric cancer xenografts. Besides, cisplatin was shown to upregulate NKG2D ligand expression in gastric cancer cells and enhance the susceptibility to NKG2D-CAR-T-cell-mediated cytotoxicity. In conclusion, NKG2D-based CAR-T cells have potent in vivo and in vitro anti-tumor activities against gastric cancer and could be a new paradigm for patients with gastric cancer, either used alone or combined with chemotherapy.
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Affiliation(s)
- Kelong Tao
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Meng He
- Department of Respiratory Medicine, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, People's Republic of China
| | - Feng Tao
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Guangen Xu
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Minfeng Ye
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Yuanyuan Zheng
- Department of Gastroenterology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, People's Republic of China
| | - Yaoqing Li
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, Zhejiang, People's Republic of China.
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14
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Malo CS, Huggins MA, Goddery EN, Tolcher HMA, Renner DN, Jin F, Hansen MJ, Pease LR, Pavelko KD, Johnson AJ. Non-equivalent antigen presenting capabilities of dendritic cells and macrophages in generating brain-infiltrating CD8 + T cell responses. Nat Commun 2018; 9:633. [PMID: 29434238 PMCID: PMC5809416 DOI: 10.1038/s41467-018-03037-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 01/15/2018] [Indexed: 01/05/2023] Open
Abstract
The contribution of antigen-presenting cell (APC) types in generating CD8+ T cell responses in the central nervous system (CNS) is not fully defined, limiting the development of vaccines and understanding of immune-mediated neuropathology. Here, we generate a transgenic mouse that enables cell-specific deletion of the H-2Kb MHC class I molecule. By deleting H-2Kb on dendritic cells and macrophages, we compare the effect of each APC in three distinct models of neuroinflammation: picornavirus infection, experimental cerebral malaria, and a syngeneic glioma. Dendritic cells and macrophages both activate CD8+ T cell responses in response to these CNS immunological challenges. However, the extent to which each of these APCs contributes to CD8+ T cell priming varies. These findings reveal distinct functions for dendritic cells and macrophages in generating CD8+ T cell responses to neurological disease.
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Affiliation(s)
- Courtney S Malo
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Matthew A Huggins
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Emma N Goddery
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Heather M A Tolcher
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Danielle N Renner
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
- Neurobiology of Disease Graduate Program, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Fang Jin
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Michael J Hansen
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Larry R Pease
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Kevin D Pavelko
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Aaron J Johnson
- Department of Immunology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
- Department of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
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15
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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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16
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Shayan G, Kansy BA, Gibson SP, Srivastava RM, Bryan JK, Bauman JE, Ohr J, Kim S, Duvvuri U, Clump DA, Heron DE, Johnson JT, Hershberg RM, Ferris RL. Phase Ib Study of Immune Biomarker Modulation with Neoadjuvant Cetuximab and TLR8 Stimulation in Head and Neck Cancer to Overcome Suppressive Myeloid Signals. Clin Cancer Res 2017; 24:62-72. [PMID: 29061643 DOI: 10.1158/1078-0432.ccr-17-0357] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/18/2017] [Accepted: 10/17/2017] [Indexed: 01/04/2023]
Abstract
Purpose: The response rate of patients with head and neck squamous cell carcinoma (HNSCC) to cetuximab therapy is only 15% to 20%, despite frequent EGFR overexpression. Because immunosuppression is common in HNSCC, we hypothesized that adding a proinflammatory TLR8 agonist to cetuximab therapy might result in enhanced T-lymphocyte stimulation and anti-EGFR-specific priming.Experimental Design: Fourteen patients with previously untreated HNSCC were enrolled in this neoadjuvant trial and treated preoperatively with 3 to 4 weekly doses of motolimod (2.5 mg/m2) and cetuximab. Correlative tumor and peripheral blood specimens were obtained at baseline and at the time of surgical resection and analyzed for immune biomarker changes. Preclinical in vitro studies were also performed to assess the effect of cetuximab plus motolimod on myeloid cells.Results: TLR8 stimulation skewed monocytes toward an M1 phenotype and reversed myeloid-derived suppressor cell (MDSC) suppression of T-cell proliferation in vitro These data were validated in a prospective phase Ib neoadjuvant trial, in which fewer MDSC and increased M1 monocyte infiltration were found in tumor-infiltrating lymphocytes. Motolimod plus cetuximab also decreased induction of Treg and reduced markers of suppression, including CTLA-4, CD73, and membrane-bound TGFβ. Significantly increased circulating EGFR-specific T cells were observed, concomitant with enhanced CD8+ T-cell infiltration into tumors. These T cells manifested increased T-cell receptor (TCR) clonality, upregulation of the costimulatory receptor CD27, and downregulation of inhibitory receptor TIGIT.Conclusions: Enhanced inflammatory stimulation in the tumor microenvironment using a TLR agonist overcomes suppressive myeloid and regulatory cells, enhancing the cellular antitumor immune response by therapeutic mAb in HNSCC. Clin Cancer Res; 24(1); 62-72. ©2017 AACR.
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Affiliation(s)
| | - Benjamin A Kansy
- Department of Otolaryngology, Essen University Hospital, Essen, Germany
| | | | | | | | | | - James Ohr
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | - Seungwon Kim
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Umamaheswar Duvvuri
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - David A Clump
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
| | | | - Jonas T Johnson
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania.,Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Robert L Ferris
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania. .,Department of Otolaryngology, University of Pittsburgh, Pittsburgh, Pennsylvania
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17
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Taghiloo S, Allahmoradi E, Tehrani M, Janbabaei G, Shekarriz R, Asgarian-Omran H. Blimp-1 Expression as an Exhaustion Transcription Factor in Chronic Lymphocytic Leukemia. RESEARCH IN MOLECULAR MEDICINE 2017. [DOI: 10.29252/rmm.5.3.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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18
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Drews A, Strandh M, Råberg L, Westerdahl H. Expression and phylogenetic analyses reveal paralogous lineages of putatively classical and non-classical MHC-I genes in three sparrow species (Passer). BMC Evol Biol 2017. [PMID: 28651571 PMCID: PMC5485651 DOI: 10.1186/s12862-017-0970-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Major Histocompatibility Complex (MHC) plays a central role in immunity and has been given considerable attention by evolutionary ecologists due to its associations with fitness-related traits. Songbirds have unusually high numbers of MHC class I (MHC-I) genes, but it is not known whether all are expressed and equally important for immune function. Classical MHC-I genes are highly expressed, polymorphic and present peptides to T-cells whereas non-classical MHC-I genes have lower expression, are more monomorphic and do not present peptides to T-cells. To get a better understanding of the highly duplicated MHC genes in songbirds, we studied gene expression in a phylogenetic framework in three species of sparrows (house sparrow, tree sparrow and Spanish sparrow), using high-throughput sequencing. We hypothesize that sparrows could have classical and non-classical genes, as previously indicated though never tested using gene expression. RESULTS The phylogenetic analyses reveal two distinct types of MHC-I alleles among the three sparrow species, one with high and one with low level of polymorphism, thus resembling classical and non-classical genes, respectively. All individuals had both types of alleles, but there was copy number variation both within and among the sparrow species. However, the number of highly polymorphic alleles that were expressed did not vary between species, suggesting that the structural genomic variation is counterbalanced by conserved gene expression. Overall, 50% of the MHC-I alleles were expressed in sparrows. Expression of the highly polymorphic alleles was very variable, whereas the alleles with low polymorphism had uniformly low expression. Interestingly, within an individual only one or two alleles from the polymorphic genes were highly expressed, indicating that only a single copy of these is highly expressed. CONCLUSIONS Taken together, the phylogenetic reconstruction and the analyses of expression suggest that sparrows have both classical and non-classical MHC-I genes, and that the evolutionary origin of these genes predate the split of the three investigated sparrow species 7 million years ago. Because only the classical MHC-I genes are involved in antigen presentation, the function of different MHC-I genes should be considered in future ecological and evolutionary studies of MHC-I in sparrows and other songbirds.
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Affiliation(s)
- Anna Drews
- Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden.
| | - Maria Strandh
- Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden
| | - Lars Råberg
- Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden
| | - Helena Westerdahl
- Department of Biology, Lund University, Ecology Building, 223 62, Lund, Sweden
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19
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Interleukin-15 and cisplatin co-encapsulated thermosensitive polypeptide hydrogels for combined immuno-chemotherapy. J Control Release 2017; 255:81-93. [DOI: 10.1016/j.jconrel.2017.04.011] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 04/09/2017] [Indexed: 01/06/2023]
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20
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Dietsch GN, Lu H, Yang Y, Morishima C, Chow LQ, Disis ML, Hershberg RM. Coordinated Activation of Toll-Like Receptor8 (TLR8) and NLRP3 by the TLR8 Agonist, VTX-2337, Ignites Tumoricidal Natural Killer Cell Activity. PLoS One 2016; 11:e0148764. [PMID: 26928328 PMCID: PMC4771163 DOI: 10.1371/journal.pone.0148764] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 01/20/2016] [Indexed: 01/11/2023] Open
Abstract
VTX-2337 (USAN: motolimod) is a selective toll-like receptor 8 (TLR8) agonist, which is in clinical development as an immunotherapy for multiple oncology indications, including squamous cell carcinoma of the head and neck (SCCHN). Activation of TLR8 enhances natural killer cell activation, increases antibody-dependent cell-mediated cytotoxicity, and induces Th1 polarizing cytokines. Here, we show that VTX-2337 stimulates the release of mature IL-1β and IL-18 from monocytic cells through coordinated actions on both TLR8 and the NOD-like receptor pyrin domain containing 3 (NLRP3) inflammasome complex. In vitro, VTX-2337 primed monocytic cells to produce pro-IL-1β, pro-IL-18, and caspase-1, and also activated the NLRP3 inflammasome, thereby mediating the release of mature IL-1β family cytokines. Inhibition of caspase-1 blocked VTX-2337-mediated NLRP3 inflammasome activation, but had little impact on production of other TLR8-induced mediators such as TNFα. IL-18 activated natural killer cells and complemented other stimulatory pathways, including FcγRIII and NKG2D, resulting in IFNγ production and expression of CD107a. NLRP3 activation in vivo was confirmed by a dose-related increase in plasma IL-1β and IL-18 levels in cynomolgus monkeys administered VTX-2337. These results are highly relevant to clinical studies of combination VTX-2337/cetuximab treatment. Cetuximab, a clinically approved, epidermal growth factor receptor-specific monoclonal antibody, activates NK cells through interactions with FcγRIII and facilitates ADCC of tumor cells. Our preliminary findings from a Phase I open-label, dose-escalation, trial that enrolled 13 patients with recurrent or metastatic SCCHN show that patient NK cells become more responsive to stimulation by NKG2D or FcγRIII following VTX-2337 treatment. Together, these results indicate that TLR8 stimulation and inflammasome activation by VTX-2337 can complement FcγRIII engagement and may augment clinical responses in SCCHN patients treated with cetuximab. Trial Registration: ClinicalTrials.gov NCT01334177
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MESH Headings
- Animals
- Benzazepines/pharmacology
- Benzazepines/therapeutic use
- Carrier Proteins/agonists
- Caspase 1/metabolism
- Cell Degranulation/drug effects
- Cell Degranulation/immunology
- Cell Line, Tumor
- Cytotoxicity, Immunologic/immunology
- Disease Models, Animal
- Female
- Humans
- Inflammasomes/metabolism
- Interleukin-18/biosynthesis
- Interleukin-1beta/biosynthesis
- K562 Cells
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Leukocytes, Mononuclear/metabolism
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/immunology
- Macaca fascicularis
- Male
- NLR Family, Pyrin Domain-Containing 3 Protein
- Neoplasms/genetics
- Neoplasms/immunology
- Neoplasms/metabolism
- Receptors, IgG/metabolism
- Toll-Like Receptor 8/agonists
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Affiliation(s)
| | - Hailing Lu
- Tumor Vaccine Group, Center for Translational Medicine in Women’s Health, University of Washington, Seattle, WA, United States of America
| | - Yi Yang
- Tumor Vaccine Group, Center for Translational Medicine in Women’s Health, University of Washington, Seattle, WA, United States of America
| | - Chihiro Morishima
- Tumor Vaccine Group, Center for Translational Medicine in Women’s Health, University of Washington, Seattle, WA, United States of America
- Department of Laboratory Medicine, University of Washington, Seattle, WA, United States of America
| | - Laura Q. Chow
- Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Mary L. Disis
- Tumor Vaccine Group, Center for Translational Medicine in Women’s Health, University of Washington, Seattle, WA, United States of America
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21
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Jia HY, Liu JL, Yuan MZ, Zhou CJ, Sun WD, Zhao JJ, Wang J, Liu L, Luan Y. Regulation Roles of MICA and NKG2D in Human Renal Cancer Cells. Asian Pac J Cancer Prev 2016; 16:3901-5. [PMID: 25987057 DOI: 10.7314/apjcp.2015.16.9.3901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Our aim was to investigation the roles of MHC class I chain-related gene A(MICA) and natural killer cell group 2D(NKG2D) in human renal cancer cells. MATERIALS AND METHODS The expression of membrane MICA (mMICA) on renal cells and NKG2D on NK cells were detected by flow cytometry (FCM); the content of sMICA were detected by enzyme linked immunosorbent assay (ELISA) and the distribution of mMICA on renal tumor tissues by immunohistochemistry; the interaction between MICA and NKG2D was observed by antibody closed method. RESULTS Our results showed that the expression of mMICA in renal cancer tissues was significantly higher than in controls, where the soluble MICA was not expressed. Cytotoxic activity of NK cells was significantly reduced after exposure to NKG2D and MICA antibodies (P<0.05), and serum containing sMICA can obviously lower the function of NKG2D (P<0.05). CONCLUSIONS The interaction of mMICA and NKG2D play important roles in mediation of cytotoxicity of NK cells in RCC. On the other hand, sMICA may mediate tumor immune escape through down- regulated NKG2D expression.
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Affiliation(s)
- Hong-Ying Jia
- Clinical Molecular Biology Laboratory, the Second Hospital of Shandong University, Jinan, Shandong Province, China E-mail :
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22
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Zhang W, Kernstock RM, Karrer EE, Cohen SB, Chindalore VL, Kivitz AJ, Blahunka PC, Delgado-Herrera L, Zeiher BG, Samberg NL, Garg JP. A Phase 1 Dose-Escalation Study of ASP2409, a Selective T-Cell Costimulation Inhibitor, in Stable Rheumatoid Arthritis Patients on Methotrexate Therapy. Clin Pharmacol Drug Dev 2016; 5:259-68. [DOI: 10.1002/cpdd.237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 10/20/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Wenhui Zhang
- Astellas Pharma Global Development; Northbrook IL USA
| | | | | | | | | | | | | | | | | | | | - Jay P. Garg
- Astellas Pharma Global Development; Northbrook IL USA
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23
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Abstract
Lung cancer has not traditionally been viewed as an immune-responsive tumor. However, it is becoming evident that tumor-induced immune suppression is vital to malignant progression. Immunotherapies act by enhancing the patient's innate immune response and hold promise for inducing long-term responses in select patients with non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). Immune checkpoint inhibitors, in particular, inhibitors to cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) and programmed death 1 (PD-1) and programmed death receptor ligand 1 (PD-L1) have shown promise in early studies and are currently in clinical trials in both small cell lung cancer and non-small cell lung cancer patients. Two large randomized phase III trials recently demonstrated superior overall survival (OS) in patients treated with anti-PD-1 therapy compared to chemotherapy in the second-line setting.
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24
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Han J, Chen X, Chu J, Xu B, Meisen WH, Chen L, Zhang L, Zhang J, He X, Wang QE, Chiocca EA, Kaur B, Caligiuri MA, Yu J. TGFβ Treatment Enhances Glioblastoma Virotherapy by Inhibiting the Innate Immune Response. Cancer Res 2015; 75:5273-82. [PMID: 26631269 DOI: 10.1158/0008-5472.can-15-0894] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 09/19/2015] [Indexed: 12/15/2022]
Abstract
Oncolytic viruses, including oncolytic herpes simplex virus (oHSV), have produced provocative therapeutic responses in patients with glioblastoma, the most aggressive brain tumor. Paradoxically, innate immune responses mediated by natural killer (NK) cells and macrophages/microglia appear to limit oHSV efficacy. Therefore, we investigated whether pretreatment with an immunosuppressive cytokine, TGFβ, might reverse these effects and thereby potentiate oHSV efficacy. TGFβ treatment of NK cells rendered them less cytolytic against oHSV-infected glioblastoma cells and stem-like cells in vitro. Furthermore, TGFβ treatment of NK cells, macrophages, or microglia increased viral titers of oHSV in cocultures with glioblastoma cells. In a syngeneic mouse model of glioblastoma, administering TGFβ prior to oHSV injection inhibited intracranial infiltration and activation of NK cells and macrophages. Notably, a single administration of TGFβ prior to oHSV therapy was sufficient to phenocopy NK-cell depletion and suppress tumor growth and prolong survival in both xenograft and syngeneic models of glioblastoma. Collectively, our findings show how administering a single dose of TGFβ prior to oncolytic virus treatment of glioblastoma can transiently inhibit innate immune cells that limit efficacy, thereby improving therapeutic responses and survival outcomes.
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Affiliation(s)
- Jianfeng Han
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio. The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Xilin Chen
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Jianhong Chu
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Bo Xu
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Walter H Meisen
- Department of Neurological Surgery, The Ohio State University, Columbus, Ohio
| | - Lichao Chen
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Lingling Zhang
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Jianying Zhang
- Center for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Xiaoming He
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio
| | - Qi-En Wang
- Department of Radiology, College of Medicine, The Ohio State University, Columbus, Ohio
| | - E Antonio Chiocca
- Department of Neurosurgery, Brigham and Women's Hospital and Harvey Cushing Neuro-oncology Laboratories, Harvard Medical School, Boston, Massachusetts
| | - Balveen Kaur
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio. Department of Neurological Surgery, The Ohio State University, Columbus, Ohio
| | - Michael A Caligiuri
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio. The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Jianhua Yu
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio. The Ohio State University Comprehensive Cancer Center, Columbus, Ohio.
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Dubey A, Park DW, Kwon JE, Jeong YJ, Kim T, Kim I, Kang SC, Chi KW. Investigation of the biological and anti-cancer properties of ellagic acid-encapsulated nano-sized metalla-cages. Int J Nanomedicine 2015; 10 Spec Iss:227-40. [PMID: 26366074 PMCID: PMC4562765 DOI: 10.2147/ijn.s88289] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Three new large hexanuclear metalla-prisms 9-11 incorporating 1,3, 5-tris(pyridin-4-ylethynyl)benzene (tpeb) 4 and one of the dinuclear arene ruthenium clips [Ru2(p-iPrC6H4Me)2(OO∩OO)][CF3SO3]2 (OO∩OO =2,5-dioxydo-1,4-benzoquinonato [dobq] 1, 5,8-dihydroxy-1,4-naphthaquinonato (donq) 2, and 6,11-dihydroxy-5,12-naphthacenedionato [dotq] 3), which encapsulate the guest molecule ellagic acid (2,3,7,8-tetrahydroxy-chromeno[5,4,3-cde]chromene-5,10-dione, 5) were prepared. All complexes were isolated as triflate salts in good yields and were fully characterized by (1)H NMR spectroscopy and electrospray ionization mass spectrometry. The photophysical properties of these metalla-prisms were also investigated. Compounds 9 and 10 showed potent antioxidant activity, but 10 had the superior ORACPE value (1.30 ± 0.020). Ellagic acid (5) and compound 11 showed weaker activity than that of Trolox. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay showed that the metalla-prism compounds exhibit anticancer properties in vitro. Compound 10 inhibited the growth of all cancer cell lines at micromolar concentrations, with the highest cytotoxicity observed against A549 human lung cancer cells (IC50 =25.9 μM). However, these compounds had a lower anti-cancer activity than that of doxorubicin. In a tumoricidal assay, ellagic acid (5) and compound 10 induced cytotoxicity in tumor cells, while doxorubicin did not. While free ellagic acid had no effect on the granulocyte-colony stimulating factor and regulated on activation normal T cell expressed and secreted protein, the encapsulated metalla-prism 10 stimulated granulocyte-colony stimulating factor and reduced regulated on activation normal T cell expressed and secreted protein expression in the RAW264.7 macrophage line. Our results show that ellagic acid encapsulated in metalla-prisms inhibited cancer cells via the modulation of mRNA induction and protein expression levels of the granulocyte-colony stimulating factor and regulated on activation normal T cell expressed and secreted protein in macrophages.
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Affiliation(s)
- Abhishek Dubey
- Department of Chemistry, University of Ulsan, Ulsan, Republic of Korea
| | - Dae Won Park
- Department of Life Science, Gachon University, Seongnam, Republic of Korea
| | - Jung Eun Kwon
- Department of Life Science, Gachon University, Seongnam, Republic of Korea
| | - Yong Joon Jeong
- Department of Life Science, Gachon University, Seongnam, Republic of Korea
| | - Taegeun Kim
- Department of Chemistry, University of Ulsan, Ulsan, Republic of Korea
| | - Inhye Kim
- Laboratory of Bio-Resources, Yongin-si, Gyeonggi-Do, Republic of Korea
| | - Se Chan Kang
- Department of Life Science, Gachon University, Seongnam, Republic of Korea
| | - Ki-Whan Chi
- Department of Chemistry, University of Ulsan, Ulsan, Republic of Korea
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Hilton HG, Guethlein LA, Goyos A, Nemat-Gorgani N, Bushnell DA, Norman PJ, Parham P. Polymorphic HLA-C Receptors Balance the Functional Characteristics of KIR Haplotypes. THE JOURNAL OF IMMUNOLOGY 2015; 195:3160-70. [PMID: 26311903 DOI: 10.4049/jimmunol.1501358] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 07/22/2015] [Indexed: 01/04/2023]
Abstract
The human killer cell Ig-like receptor (KIR) locus comprises two groups of KIR haplotypes, termed A and B. These are present in all human populations but with different relative frequencies, suggesting they have different functional properties that underlie their balancing selection. We studied the genomic organization and functional properties of the alleles of the inhibitory and activating HLA-C receptors encoded by KIR haplotypes. Because every HLA-C allotype functions as a ligand for KIR, the interactions between KIR and HLA-C dominate the HLA class I-mediated regulation of human NK cells. The C2 epitope is recognized by inhibitory KIR2DL1 and activating KIR2DS1, whereas the C1 epitope is recognized by inhibitory KIR2DL2 and KIR2DL3. This study shows that the KIR2DL1, KIR2DS1, and KIR2DL2/3 alleles form distinctive phylogenetic clades that associate with specific KIR haplotypes. KIR A haplotypes are characterized by KIR2DL1 alleles that encode strong inhibitory C2 receptors and KIR2DL3 alleles encoding weak inhibitory C1 receptors. In striking contrast, KIR B haplotypes are characterized by KIR2DL1 alleles that encode weak inhibitory C2 receptors and KIR2DL2 alleles encoding strong inhibitory C1 receptors. The wide-ranging properties of KIR allotypes arise from substitutions throughout the KIR molecule. Such substitutions can influence cell surface expression, as well as the avidity and specificity for HLA-C ligands. Consistent with the crucial role of inhibitory HLA-C receptors in self-recognition, as well as NK cell education and response, most KIR haplotypes have both a functional C1 and C2 receptor, despite the considerable variation that occurs in ligand recognition and surface expression.
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Affiliation(s)
- Hugo G Hilton
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - Lisbeth A Guethlein
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - Ana Goyos
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - Neda Nemat-Gorgani
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - David A Bushnell
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and
| | - Paul J Norman
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
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Abstract
Asthma is an immune-mediated disease of the airways characterized by reversible airway obstruction, bronchial eosinophilic inflammation, and airway hyperresponsiveness (AHR). The immune dysregulation in asthma has been attributed to the involvement of diverse immune cells that contribute to the immunopathology of the disease. Natural killer (NK) cells play critical roles in host defense against viruses and various cancers. Accumulating evidence demonstrates additional important roles for these cells in T cell priming, dendritic cell maturation, and the development of inflammation, all of which have the potential to enhance or dampen allergic responses. The ability of NK cells to produce Th2-type cytokines and their pivotal role in combating respiratory infections which cause airway dysfunction in asthmatics further suggest that they may directly contribute to the immunopathogenesis of allergic airway disease. In this review, we examine emerging evidence and discuss the putative roles of NK cells in the sensitization, progression, and resolution of asthma.
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Affiliation(s)
- Clinton B Mathias
- Department of Pharmaceutical and Administrative Sciences, College of Pharmacy, Western New England University, Springfield, MA, 01119, USA,
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Heigener D, Reck M. Exploring the potential of immuno-oncology-based treatment for patients with non-small cell lung cancer. Expert Rev Anticancer Ther 2014; 15:69-83. [PMID: 25199617 DOI: 10.1586/14737140.2015.957187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Immune evasion is recognized as a key strategy for cancer survival and progression. With increased understanding of immune escape mechanisms, the development of immunotherapies to restore anti-tumor immune responses has flourished. Immuno-oncology (I-O) agents targeting checkpoints in the immune regulation cascade currently form the mainstay of approaches of cancer immunotherapy. Since initial success in melanoma, evidence for the notable effects of the I-O modality has been expanding, with numerous clinical studies underway or completed in a variety of solid tumors, including non-small cell lung cancer. This review highlights the rationale and potential role of immunotherapy in non-small cell lung cancer management, with a focus on immune checkpoint inhibitors. We also discuss the potential for I-O-based combination therapy.
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Affiliation(s)
- David Heigener
- LungenClinic Grosshansdorf, Department of Thoracic Oncology, Airway Research Center North (ARCN), member of the German Center for Lung Research (DZL), Woehrendamm 80, 22927, Grosshansdorf, Germany
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Siegers GM, Lamb LS. Cytotoxic and regulatory properties of circulating Vδ1+ γδ T cells: a new player on the cell therapy field? Mol Ther 2014; 22:1416-1422. [PMID: 24895997 DOI: 10.1038/mt.2014.104] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 05/26/2014] [Indexed: 12/20/2022] Open
Abstract
Exploration of cancer immunotherapy strategies that incorporate γδ T cells as primary mediators of antitumor immunity are just beginning to be explored and with a primary focus on the use of manufactured phosphoantigen-stimulated Vγ9Vδ2 T cells. Increasing evidence, however, supports a critical role for Vδ1+ γδ T cells, a minor subset in peripheral blood with distinct innate recognition properties that possess powerful tumoricidal activity. They are activated by a host of ligands including stress-induced self-antigens, glycolipids presented by CD1c/d, and potentially many others that currently remain unidentified. In contrast to Vγ9Vδ2 T cells, tumor-reactive Vδ1+ T cells are not as susceptible to activation-induced cell death and can persist in the circulation for many years, potentially offering durable immunity to some cancers. In addition, specific populations of Vδ1+ T cells can also exhibit immunosuppressive and regulatory properties, a function that can also be exploited for therapeutic purposes. This review explores the biology, function, manufacturing strategies, and potential therapeutic role of Vδ1+ T cells. We also discuss clinical experience with Vδ1+ T cells in the setting of cancer, as well as the potential of and barriers to the development of Vδ1+ T cell-based adoptive cell therapy strategies.
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Affiliation(s)
- Gabrielle M Siegers
- Department of Anatomy and Cell Biology, Schulich School of Medicine & Dentistry, Robarts Research Institute, Western University, London, Ontario, Canada
| | - Lawrence S Lamb
- Division of Hematology & Oncology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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Ben Fredj N, Rizzo R, Bortolotti D, Nefzi F, Chebel S, Rotola A, Frih-Ayed M, Di Luca D, Aouni M. Evaluation of the implication of KIR2DL2 receptor in multiple sclerosis and herpesvirus susceptibility. J Neuroimmunol 2014; 271:30-5. [DOI: 10.1016/j.jneuroim.2014.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 02/10/2014] [Accepted: 03/24/2014] [Indexed: 01/23/2023]
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Dawe K, Montgomery A, McGee H, Panagopoulou E, Morgan K, Hackshaw L, Vedhara K. The effects of perceived stress on biological parameters in healthcare professionals: A systematic review. J Health Psychol 2014; 21:607-18. [DOI: 10.1177/1359105314532970] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We synthesised evidence on biological correlates of psychological stress in hospital-based healthcare professionals, and examined whether there was evidence of consistent biological changes. Electronic databases were searched for empirical studies; 16 articles (0.6%) met the inclusion criteria. Evidence of a relationship between indices of psychological stress and biological parameters was limited and inconsistent. There was some evidence of a consistent relationship between natural killer cells and lymphocyte subpopulations. Considerable heterogeneity in the methods used was seen. Future prospective studies examining the relationship between indices of psychological stress and natural killer cells, including lymphocyte subsets, is required.
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Affiliation(s)
| | | | | | | | - Karen Morgan
- Royal College of Surgeons in Ireland, Ireland
- Perdana University, Malaysia
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Jia HY, Liu JL, Zhou CJ, Kong F, Yuan MZ, Sun WD, Wang J, Liu L, Zhao JJ, Luan Y. High Expression of MICA in Human Kidney Cancer Tissue and Renal Cell Carcinoma Lines. Asian Pac J Cancer Prev 2014; 15:1715-7. [DOI: 10.7314/apjcp.2014.15.4.1715] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Caniceiro BD, Latorre AO, Fukumasu H, Sanches DS, Haraguchi M, Górniak SL. Immunosuppressive effects of Pteridium aquilinum enhance susceptibility to urethane-induced lung carcinogenesis. J Immunotoxicol 2014; 12:74-80. [PMID: 24552549 DOI: 10.3109/1547691x.2014.885619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Pteridium aquilinum (bracken fern), one of the most important toxic plants in the world, contains the toxic norsequiterpene ptaquiloside that induces cancers in humans and farm animals. Previous studies in the laboratory demonstrated immunotoxic effects produced by ptaquiloside, which are characterized by suppression of natural killer (NK) cell activity (i.e. cytotoxicity and interferon [IFN]-γ production). However, it is unknown whether these immunosuppressive effects could contribute to carcinogenesis in situ in general because of the important function of NK cells in innate killing of tumor cells. This study assessed the impact of P. aquilinum-induced immunosuppression on urethane-induced lung cancer in C57BL/6 mice. Adult mice were treated with an extract of P. aquilinum (30 g/kg/day) by gavage once daily for 14 days, followed by gavage (5 days/week) during an 11-week period that was accompanied by treatment with urethane (1 g/kg) via once-weekly intraperitoneal injection; 20 weeks after the end of the treatment period, all lungs were evaluated. The results indicated there was a significant increase in lung nodule number as well as in multiplicity of lesions in mice treated with both P. aquilinum and urethane (PU group) compared to values in mice treated only with the urethane (U group). In addition, histologic evaluation revealed a 76% increase in the rate of lung adenomas and a 41% increase in rate of bronchiolization of alveoli in the mice from the PU group compared to levels seen in mice within the U group. Taken together, the results here show for the first time that immunosuppressive effects of P. aquilinum could increase the risk of cancer formation in exposed hosts.
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Bender HS, Marshall Graves JA, Deakin JE. Pathogenesis and molecular biology of a transmissible tumor in the Tasmanian devil. Annu Rev Anim Biosci 2013; 2:165-87. [PMID: 25384139 DOI: 10.1146/annurev-animal-022513-114204] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The emergence of a fatal transmissible cancer known as devil facial tumor disease (DFTD) is threatening the iconic Tasmanian devil with extinction in the wild within the next few decades. Since the first report of the disease in 1996, DFTD has spread to over 85% of the devils' distribution and dramatically reduced devil numbers. Research into DFTD has focused on gaining a deeper understanding of the disease on multiple levels, including an accurate assessment of the tissue origin of the tumor, elucidation of how the tumor evades immune detection, and determination of how the tumor is transmitted between individuals and how it is evolving as it spreads through the population. Knowledge gained from these studies has important implications for DFTD management and devil conservation.
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Affiliation(s)
- Hannah S Bender
- Research School of Biology, The Australian National University, Canberra, ACT 0200, Australia
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Vermeulen BL, Devriendt B, Olyslaegers DA, Dedeurwaerder A, Desmarets LM, Grauwet KL, Favoreel HW, Dewerchin HL, Nauwynck HJ. Natural killer cells: Frequency, phenotype and function in healthy cats. Vet Immunol Immunopathol 2012; 150:69-78. [DOI: 10.1016/j.vetimm.2012.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 08/13/2012] [Accepted: 08/27/2012] [Indexed: 10/27/2022]
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36
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Effect of dietary supplementation with white button mushrooms on host resistance to influenza infection and immune function in mice. Br J Nutr 2012. [PMID: 23200185 DOI: 10.1017/s0007114512002735] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Previously, we showed that mice fed white button mushrooms (WBM) had enhanced immune functions known to help the body's antiviral defence. In the present study, we tested whether WBM conferred protection against viral infection. Young (4-month-old) and old (22-month-old) C57BL/6 mice were fed a diet containing 0, 2 or 10 % WBM powder for 8 weeks. Mice were then infected with influenza Puerto Rico/8/34 (H1N1), and killed at day 0 (uninfected), 2, 5 or 7 post-infection. The primary outcomes of the study were viral titre and body weight. Secondary outcomes were natural killer (NK) cell activity, lymphocyte proliferation and cytokine production. The results showed that WBM did not affect viral titre, nor did it prevent infection-induced weight loss. WBM supplementation was found to enhance NK cell activity in old mice and to increase interferon (IFN)-γ production in young and old mice under naive (uninfected) conditions, but it had no such effect after infection. The lack of a mushroom supplementation effect on NK activity and concanavalin A-stimulated IFN-γ production after infection may explain the immune system's failure to reduce viral load and weight loss in mice after influenza infection. WBM supplementation, however, did induce changes in other aspects of the immune response: it significantly increased the production of T-helper type 2 cytokines IL-4 and IL-10 in uninfected mice and pro-inflammatory cytokines IL-1β and TNF-α in infected mice. These mushroom-induced systemic changes, however, were not adequate to confer a protective effect against influenza infection.
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Albuquerque K, Tell D, Lobo P, Millbrandt L, Mathews HL, Janusek LW. Impact of partial versus whole breast radiation therapy on fatigue, perceived stress, quality of life and natural killer cell activity in women with breast cancer. BMC Cancer 2012; 12:251. [PMID: 22708709 PMCID: PMC3542587 DOI: 10.1186/1471-2407-12-251] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 05/29/2012] [Indexed: 12/02/2022] Open
Abstract
Introduction This pilot study used a prospective longitudinal design to compare the effect of adjuvant whole breast radiation therapy (WBRT) versus partial breast radiation therapy (PBRT) on fatigue, perceived stress, quality of life and natural killer cell activity (NKCA) in women receiving radiation after breast cancer surgery. Methods Women (N = 30) with early-stage breast cancer received either PBRT, Mammosite brachytherapy at dose of 34 Gy 10 fractions/5 days, (N = 15) or WBRT, 3-D conformal techniques at dose of 50 Gy +10 Gy Boost/30 fractions, (N = 15). Treatment was determined by the attending oncologist after discussion with the patient and the choice was based on tumor stage and clinical need. Women were assessed prior to initiation of radiation therapy and twice after completion of radiation therapy. At each assessment, blood was obtained for determination of NKCA and the following instruments were administered: Perceived Stress Scale (PSS), Functional Assessment of Cancer Therapy-Fatigue (FACT-F), and Functional Assessment of Cancer Therapy-General (FACT-G). Hierarchical linear modeling (HLM) was used to evaluate group differences in initial outcomes and change in outcomes over time. Results Fatigue (FACT-F) levels, which were similar prior to radiation therapy, demonstrated a significant difference in trajectory. Women who received PBRT reported progressively lower fatigue; conversely fatigue worsened over time for women who received WBRT. No difference in perceived stress was observed between women who received PBRT or WBRT. Both groups of women reported similar levels of quality of life (FACT-G) prior to initiation of radiation therapy. However, HLM analysis revealed significant group differences in the trajectory of quality of life, such that women receiving PBRT exhibited a linear increase in quality of life over time after completion of radiation therapy; whereas women receiving WBRT showed a decreasing trajectory. NKCA was also similar between therapy groups but additional post hoc analysis revealed that better quality of life significantly predicted higher NKCA regardless of therapy. Conclusions Compared to WBRT, PBRT results in more rapid recovery from cancer-related fatigue with improved restoration of quality of life after radiation therapy. Additionally, better quality of life predicts higher NKCA against tumor targets, emphasizing the importance of fostering quality of life for women undergoing adjuvant radiation therapy.
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Affiliation(s)
- Kevin Albuquerque
- Department of Radiation Oncology, Loyola University Health System, Maywood, IL, USA.
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38
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Jimenez-Perez MI, Jave-Suarez LF, Ortiz-Lazareno PC, Bravo-Cuellar A, Gonzalez-Ramella O, Aguilar-Lemarroy A, Hernandez-Flores G, Pereira-Suarez AL, Daneri-Navarro A, del Toro-Arreola S. Cervical cancer cell lines expressing NKG2D-ligands are able to down-modulate the NKG2D receptor on NKL cells with functional implications. BMC Immunol 2012; 13:7. [PMID: 22316211 PMCID: PMC3364150 DOI: 10.1186/1471-2172-13-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 02/08/2012] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Cervical cancer represents the third most commonly diagnosed cancer and the fourth leading cause of cancer-related deaths in women worldwide. Natural killer (NK) cells play an important role in the defense against viruses, intracellular bacteria and tumors. NKG2D, an activating receptor on NK cells, recognizes MHC class I chain-related molecules, such as MICA/B and members of the ULBP/RAET1 family. Tumor-derived soluble NKG2D-ligands have been shown to down-modulate the expression of NKG2D on NK cells. In addition to the down-modulation induced by soluble NKG2D-ligands, it has recently been described that persistent cell-cell contact can also down-modulate NKG2D expression. The goal of this study was to determine whether the NKG2D receptor is down-modulated by cell-cell contact with cervical cancer cells and whether this down-modulation might be associated with changes in NK cell activity. RESULTS We demonstrate that NKG2D expressed on NKL cells is down-modulated by direct cell contact with cervical cancer cell lines HeLa, SiHa, and C33A, but not with non-tumorigenic keratinocytes (HaCaT). Moreover, this down-modulation had functional implications. We found expression of NKG2D-ligands in all cervical cancer cell lines, but the patterns of ligand distribution were different in each cell line. Cervical cancer cell lines co-cultured with NKL cells or fresh NK cells induced a marked diminution of NKG2D expression on NKL cells. Additionally, the cytotoxic activity of NKL cells against K562 targets was compromised after co-culture with HeLa and SiHa cells, while co-culture with C33A increased the cytotoxic activity of the NKL cells. CONCLUSIONS Our results suggest that differential expression of NKG2D-ligands in cervical cancer cell lines might be associated with the down-modulation of NKG2D, as well as with changes in the cytotoxic activity of NKL cells after cell-cell contact with the tumor cells.
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Affiliation(s)
- Miriam I Jimenez-Perez
- Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
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Belicha-Villanueva A, Riddell J, Bangia N, Gollnick SO. The effect of photodynamic therapy on tumor cell expression of major histocompatibility complex (MHC) class I and MHC class I-related molecules. Lasers Surg Med 2012; 44:60-8. [PMID: 22246985 DOI: 10.1002/lsm.21160] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2011] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND OBJECTIVE Photodynamic therapy (PDT) is FDA-approved anti-cancer modality for elimination of early disease and palliation in advanced disease. PDT efficacy depends in part on elicitation of a tumor-specific immune response that is dependent on cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells. The cytolytic potential of CTLs and NK cells is mediated by the ability of these cells to recognize major histocompatibility complex (MHC) class I and MHC class I-related molecules. The MHC class I-related molecules MICA and MICB are induced by oxidative stress and have been reported to activate NK cells and co-stimulate CD8(+) T cells. The purpose of this study was to examine the effect of PDT on tumor cell expression of MHC classes I and II-related molecules in vivo and in vitro. STUDY DESIGN/MATERIALS AND METHODS Human colon carcinoma Colo205 cells and murine CT26 tumors were treated with 2-[1-hexyloxyethyl]-2-devinyl pyropheophorbide-a (HPPH)-PDT at various doses. MHC classes I and I-related molecule expression following treatment of Colo205 cells was temporally examined by flow cytometry using antibodies specific for components of MHC class I molecules and by quantitative PCR using specific primers. Expression of MHC class I-related molecules following HPPH-based PDT (HPPH-PDT) of murine tumors was monitored using a chimeric NKG2D receptor. RESULTS In vitro HPPH-PDT significantly induces MICA in Colo205 cells, but had no effect on MHC class I molecule expression. PDT also induced expression of NKG2D ligands (NKG2DL) following in vivo HPPH-PDT of a murine tumor. Induction of MICA corresponded to increased NK killing of PDT-treated tumor cells. CONCLUSIONS PDT induction of MICA on human tumor cells and increased expression of NKG2DL by murine tumors following PDT may play a role in PDT induction of anti-tumor immunity. This conclusion is supported by our results demonstrating that tumor cells have increased sensitivity to NK cell lysis following PDT.
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Affiliation(s)
- Alan Belicha-Villanueva
- Department of Immunology, Elm and Carlton Sts., Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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Quezada SA, Peggs KS. Tumor-reactive CD4+ T cells: plasticity beyond helper and regulatory activities. Immunotherapy 2011; 3:915-7. [PMID: 21843076 DOI: 10.2217/imt.11.83] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Blokhuis JH, van der Wiel MK, Doxiadis GGM, Bontrop RE. The extreme plasticity of killer cell Ig-like receptor (KIR) haplotypes differentiates rhesus macaques from humans. Eur J Immunol 2011; 41:2719-28. [DOI: 10.1002/eji.201141621] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 05/16/2011] [Accepted: 06/20/2011] [Indexed: 11/09/2022]
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Purdy AK, Campbell KS. [Natural killer cells and cancer. Regulation by the killer cell Ig-like receptors (KIR)]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2011; 13:731-6. [PMID: 21644387 PMCID: PMC6135950 DOI: 10.3779/j.issn.1009-3419.2010.07.14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
自然杀伤(natural killer, NK)细胞是先天性免疫效应细胞,约占人外周血淋巴细胞总数的10%-15%,主要参与免疫监视,以消除转化细胞和病毒感染细胞。NK细胞最初被界定是由于它们具有自发消除少数主要组织相容性复合物Ⅰ类(major histocompatibility class Ⅰ, MHC-Ⅰ)自身分子表达缺乏细胞的能力,即常说的“丢失自我”识别能力。NK细胞表面表达的MHC-Ⅰ特异性抑制性受体,可使NK细胞对表达MHC-Ⅰ的正常细胞耐受,此为丢失自我识别能力的分子基础。由于缺乏抑制性受体的配体,表面MHC-Ⅰ表达下调的肿瘤细胞和病毒感染细胞易受NK细胞攻击。杀伤细胞免疫球蛋白样受体(KIR; CD158)组成MHC-Ⅰ结合受体家族,对调节人NK细胞和部分T细胞的活化阈值起重要作用。KIR多样性使NK细胞具有多种功能,在此我们将综述多个水平上的KIR多样性,并诠释KIR多样性是如何影响各种疾病(包括癌症)的易感性的。我们将进一步阐述通过针对KIR进行癌症治疗的策略:利用KIR/MHC-Ⅰ配体的错配以强化造血干细胞移植的效果,以及通过阻滞KIR以增强对肿瘤细胞的杀伤力。
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Affiliation(s)
- Amanda K Purdy
- Fox Chase Cancer Center, Institute for Cancer Research, Philadelphia, PA, USA
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Olsnes C, Olofsson J, Aarstad HJ. MAPKs ERK and p38, but not JNK Phosphorylation, Modulate IL-6 and TNF-α Secretion Following OK-432 In Vitro Stimulation of Purified Human Monocytes. Scand J Immunol 2011; 74:114-25. [DOI: 10.1111/j.1365-3083.2011.02555.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Crystal structure of a gammadelta T-cell receptor specific for the human MHC class I homolog MICA. Proc Natl Acad Sci U S A 2011; 108:2414-9. [PMID: 21262824 DOI: 10.1073/pnas.1015433108] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
γδ T cells play important roles in bridging innate and adaptive immunity, but their recognition mechanisms remain poorly understood. Human γδ T cells of the V(δ)1 subset predominate in intestinal epithelia and respond to MICA and MICB (MHC class I chain-related, A and B; MIC) self-antigens, mediating responses to tumorigenesis or viral infection. The crystal structure of an MIC-reactive V(δ)1 γδ T-cell receptor (TCR) showed expected overall structural homology to antibodies, αβ, and other γδ TCRs, but complementary determining region conformations and conservation of V(δ)1 use revealed an uncharacteristically flat potential binding surface. MIC, likewise, serves as a ligand for the activating immunoreceptor natural killer group 2, D (NKG2D), also expressed on γδ T cells. Although MIC recognition drives both the TCR-dependent stimulatory and NKG2D-dependent costimulatory signals necessary for activation, interaction analyses showed that MIC binding by the two receptors was mutually exclusive. Analysis of relative binding kinetics suggested sequential recognition, defining constraints for the temporal organization of γδ T-cell/target cell interfaces.
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Immunotherapy for lung cancers. J Biomed Biotechnol 2011; 2011:250860. [PMID: 21318107 PMCID: PMC3035001 DOI: 10.1155/2011/250860] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 11/15/2010] [Accepted: 12/23/2010] [Indexed: 11/21/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Although treatment methods in surgery, irradiation, and chemotherapy have improved, prognosis remains unsatisfactory and developing new therapeutic strategies is still an urgent demand. Immunotherapy is a novel therapeutic approach wherein activated immune cells can specifically kill tumor cells by recognition of tumor-associated antigens without damage to normal cells. Several lung cancer vaccines have demonstrated prolonged survival time in phase II and phase III trials, and several clinical trials are under investigation. However, many clinical trials involving cancer vaccination with defined tumor antigens work in only a small number of patients. Cancer immunotherapy is not completely effective in eradicating tumor cells because tumor cells escape from host immune scrutiny. Understanding of the mechanism of immune evasion regulated by tumor cells is required for the development of more effective immunotherapeutic approaches against lung cancer. This paper discusses the identification of tumor antigens in lung cancer, tumor immune escape mechanisms, and clinical vaccine trials in lung cancer.
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Abi-Rached L, Moesta AK, Rajalingam R, Guethlein LA, Parham P. Human-specific evolution and adaptation led to major qualitative differences in the variable receptors of human and chimpanzee natural killer cells. PLoS Genet 2010; 6:e1001192. [PMID: 21079681 PMCID: PMC2973822 DOI: 10.1371/journal.pgen.1001192] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Accepted: 10/01/2010] [Indexed: 11/18/2022] Open
Abstract
Natural killer (NK) cells serve essential functions in immunity and reproduction. Diversifying these functions within individuals and populations are rapidly-evolving interactions between highly polymorphic major histocompatibility complex (MHC) class I ligands and variable NK cell receptors. Specific to simian primates is the family of Killer cell Immunoglobulin-like Receptors (KIR), which recognize MHC class I and associate with a range of human diseases. Because KIR have considerable species-specificity and are lacking from common animal models, we performed extensive comparison of the systems of KIR and MHC class I interaction in humans and chimpanzees. Although of similar complexity, they differ in genomic organization, gene content, and diversification mechanisms, mainly because of human-specific specialization in the KIR that recognizes the C1 and C2 epitopes of MHC-B and -C. Humans uniquely focused KIR recognition on MHC-C, while losing C1-bearing MHC-B. Reversing this trend, C1-bearing HLA-B46 was recently driven to unprecedented high frequency in Southeast Asia. Chimpanzees have a variety of ancient, avid, and predominantly inhibitory receptors, whereas human receptors are fewer, recently evolved, and combine avid inhibitory receptors with attenuated activating receptors. These differences accompany human-specific evolution of the A and B haplotypes that are under balancing selection and differentially function in defense and reproduction. Our study shows how the qualitative differences that distinguish the human and chimpanzee systems of KIR and MHC class I predominantly derive from adaptations on the human line in response to selective pressures placed on human NK cells by the competing needs of defense and reproduction.
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MESH Headings
- Adaptation, Physiological/genetics
- Adaptation, Physiological/immunology
- Animals
- Asia, Southeastern
- Biological Evolution
- Epitopes/immunology
- HLA-B Antigens/immunology
- Haplotypes/genetics
- Histocompatibility Antigens/immunology
- Humans
- Killer Cells, Natural/immunology
- Ligands
- Pan troglodytes/genetics
- Pan troglodytes/immunology
- Phylogeny
- Protein Structure, Tertiary
- Receptors, KIR/chemistry
- Receptors, KIR/genetics
- Receptors, KIR/immunology
- Recombination, Genetic/genetics
- Selection, Genetic
- Signal Transduction/genetics
- Species Specificity
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Affiliation(s)
- Laurent Abi-Rached
- Department of Structural Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Achim K. Moesta
- Department of Structural Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Raja Rajalingam
- UCLA Immunogenetics Center, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, California, United States of America
| | - Lisbeth A. Guethlein
- Department of Structural Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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Abstract
MHC class I downregulation is a general mechanism by which tumor cells can escape from T-cell-mediated immunity. This downregulation also represents a serious obstacle to the development of effective antitumor immunotherapy or vaccination. Therefore, successful immunotherapeutic and vaccination protocols should be optimized against tumors with distinct cell surface expression of the MHC class I molecules. Mechanisms leading to protective immunity may vary in different models with respect to the particular tumors (e.g., in their levels of residual expression of the MHC class I molecules on tumor cells or inducibility of MHC class I expression). Notably, both CD8+ cell-mediated immunity and MHC class I-unrestricted mechanisms can take place against MHC class I-deficient tumors. Since MHC class I downregulation is frequently reversible by cytokines and also by the activation of epigenetically silenced genes, an attractive strategy is to elicit specific cell-mediated immunity combined with restoration of MHC class I expression on tumor cells.
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Affiliation(s)
- Milan Reiniš
- Institute of Molecular Genetics, v.v.i., Academy of Sciences of the Czech Republic, Vídenská 1083, Prague 4, 142 20, Czech Republic
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Joncker NT, Shifrin N, Delebecque F, Raulet DH. Mature natural killer cells reset their responsiveness when exposed to an altered MHC environment. ACTA ACUST UNITED AC 2010; 207:2065-72. [PMID: 20819928 PMCID: PMC2947079 DOI: 10.1084/jem.20100570] [Citation(s) in RCA: 183] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Some mature natural killer (NK) cells cannot be inhibited by major histocompatibility complex (MHC) I molecules, either because they lack corresponding inhibitory receptors or because the host lacks the corresponding MHC I ligands for the receptors. Such NK cells nevertheless remain self-tolerant and exhibit a generalized hyporesponsiveness to stimulation through activating receptors. To address whether NK cell responsiveness is set only during the NK cell differentiation process, we transferred mature NK cells from wild-type (WT) to MHC I–deficient hosts or vice versa. Remarkably, mature responsive NK cells from WT mice became hyporesponsive after transfer to MHC I–deficient mice, whereas mature hyporesponsive NK cells from MHC I–deficient mice became responsive after transfer to WT mice. Altered responsiveness was evident among mature NK cells that had not divided in the recipient animals, indicating that the cells were mature before transfer and that alterations in activity did not require cell division. Furthermore, the percentages of NK cells expressing KLRG1, CD11b, CD27, and Ly49 receptors specific for H-2b were not markedly altered after transfer. Thus, the functional activity of mature NK cells can be reset when the cells are exposed to a changed MHC environment. These findings have important implications for how NK cell functions may be curtailed or enhanced in the context of disease.
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Affiliation(s)
- Nathalie T Joncker
- Department of Molecular and Cell Biology, Cancer Research Laboratory, University of California, Berkeley, Berkeley, CA 94720, USA
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Haeberlein S, Sebald H, Bogdan C, Schleicher U. IL-18, but not IL-15, contributes to the IL-12-dependent induction of NK-cell effector functions by Leishmania infantum in vivo. Eur J Immunol 2010; 40:1708-17. [PMID: 20213736 PMCID: PMC2909391 DOI: 10.1002/eji.200939988] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Activation of NK cells is a hallmark of infections with intracellular pathogens. We previously showed that the protozoan parasite Leishmania infantum triggered a rapid NK-cell response in mice that required TLR9-positive myeloid DC and IL-12, but no IFN-α/β. Here, we investigated whether IL-15 or IL-18 mediate the activity of IL-12 or function as independent activators of NK cells. In contrast to earlier studies that described IL-15 as crucial for NK-cell priming in response to TLR ligands, the expression of IFN-γ, FasL, perforin and granzyme B by NK cells in L. infantum-infected mice was completely preserved in the absence of IL-15, whereas the proliferative capacity of NK cells was lower than in WT mice. IFN-γ secretion, cytotoxicity and FasL expression of NK cells from infected IL-18−/− mice were significantly reduced compared with controls, but, unlike IL-12, IL-18 was not essential for NK-cell effector functions. Part of the NK-cell-stimulatory effect of IL-12 was dependent on IL-18. We conclude that IL-15 is not functioning as a universal NK-cell priming signal and that IL-18 contributes to the NK-cell response in visceral leishmaniasis. The cytokine requirements for NK-cell activation appear to differ contingent upon the infectious pathogen.
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Affiliation(s)
- Simone Haeberlein
- Microbiology Institute - Clinical Microbiology, Immunology and Hygiene, Friedrich-Alexander-University Erlangen-Nuremberg and University Clinic of Erlangen, Erlangen, Germany
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Kim HR, Chwae YJ, Kim J. Identification of the amino acid sequence motif for conventional PKC-mediated regulation of NKp46 surface expression. Scand J Immunol 2010; 71:413-9. [PMID: 20500693 DOI: 10.1111/j.1365-3083.2010.02395.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A number of surface receptors expressed on NK cells are related to the regulation of NK cell activity and characterized by either inhibitory or activating properties. Natural cytotoxicity receptors (NCR) are one major family of activating receptors involved in NK cytotoxicity. The three family members of NCR are NKp46, NKp44, and NKp30. The surface density of these receptors might vary with the activation state of NK cells, and their density may directly correlate with their natural cytotoxicity. In this study, we investigated the regulation of NKp46 expression and determined the amino acid sequence motif for protein kinase C (PKC)-mediated regulation of its surface expression. We produced stable cell lines expressing full-length NKp46 and investigated the change in expression after PMA or IL-2 treatment using flow cytometry, RT-PCR, and immunoblotting methods. Expression of NKp46 on Jurkat T-cell transfectants appeared to be induced by PMA treatment until 8-h post-treatment and then gradually decreased afterwards to levels that were less than those measured at pretreatment. Parallel to surface expression of NKp46, total NKp46 protein expression also appeared to fluctuate after PMA treatment, but the expression of mRNA transcripts was not significantly affected. Experiments with mutant NKp46-expressing stable cell lines demonstrated that Ser288 might be critical for the surface expression of NKp46 and the PKC-mediated regulation of NKp46 expression. However, NKp46 surface expression was not influenced by IL-2 in stable cell lines expressing wild-type and mutant NKp46.
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Affiliation(s)
- H-R Kim
- Department of Microbiology and BK21 Project for the School of Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
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