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Yang FF, Hu T, Liu JQ, Yu XQ, Ma LY. Histone deacetylases (HDACs) as the promising immunotherapeutic targets for hematologic cancer treatment. Eur J Med Chem 2022; 245:114920. [PMID: 36399875 DOI: 10.1016/j.ejmech.2022.114920] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/25/2022] [Accepted: 11/08/2022] [Indexed: 11/14/2022]
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2
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Świderska J, Kozłowski M, Gaur M, Pius-Sadowska E, Kwiatkowski S, Machaliński B, Cymbaluk-Płoska A. Clinical Significance of BTLA, CD27, CD70, CD28 and CD80 as Diagnostic and Prognostic Markers in Ovarian Cancer. Diagnostics (Basel) 2022; 12:diagnostics12020251. [PMID: 35204342 PMCID: PMC8871082 DOI: 10.3390/diagnostics12020251] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/05/2022] [Accepted: 01/17/2022] [Indexed: 11/16/2022] Open
Abstract
It is very important to find new diagnostic and prognostic biomarkers. A total of 79 patients were enrolled in the study. The study group consisted of 37 patients with epithelial ovarian cancer, and the control group consisted of 42 patients with benign ovarian lesions. Five proteins involved in the immune response were studied: BTLA, CD27, CD70, CD28, CD80. The study material was serum and peritoneal fluid. The ROC curve was plotted, and the area under the curve was calculated to characterize the sensitivity and specificity of the studied parameters. Univariate and multivariate analyses were performed simultaneously using the Cox regression model. The cut-off level of CD27 was 120.6 pg/mL, with the sensitivity and specificity of 66 and 84% (p = 0.014). Unfavorable prognostic factors determined in serum were: CD27 (for PFS: HR 1.26, 95% CI 1.21–1.29, p = 0.047; for OS: HR 1.20, 95% CI 1.15–1.22, p = 0.014). Unfavorable prognostic factors determined in peritoneal fluid were: BTLA (for OS: HR 1.26, 95% CI 1.25–1.31, p = 0.033). We conclude that CD27 should be considered as a potential biomarker in the diagnosis of ovarian cancer. BTLA and CD27 are unfavorable prognostic factors for ovarian cancer.
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Affiliation(s)
- Janina Świderska
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (J.Ś.); (M.G.); (A.C.-P.)
| | - Mateusz Kozłowski
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (J.Ś.); (M.G.); (A.C.-P.)
- Correspondence:
| | - Maria Gaur
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (J.Ś.); (M.G.); (A.C.-P.)
| | - Ewa Pius-Sadowska
- Department of General Pathology, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (E.P.-S.); (B.M.)
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (E.P.-S.); (B.M.)
| | - Aneta Cymbaluk-Płoska
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland; (J.Ś.); (M.G.); (A.C.-P.)
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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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4
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Tsoutsou PG, Zaman K, Martin Lluesma S, Cagnon L, Kandalaft L, Vozenin MC. Emerging Opportunities of Radiotherapy Combined With Immunotherapy in the Era of Breast Cancer Heterogeneity. Front Oncol 2018; 8:609. [PMID: 30619749 PMCID: PMC6305124 DOI: 10.3389/fonc.2018.00609] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/28/2018] [Indexed: 12/16/2022] Open
Abstract
The association of radiotherapy and immunotherapy has recently emerged as an exciting combination that might improve outcomes in many solid tumor settings. In the context of breast cancer, this opportunity is promising and under investigation. Given the heterogeneity of breast cancer, it might be meaningful to study the association of radiotherapy and immunotherapy distinctly among the various breast cancer subtypes. The use of biomarkers, such as tumor infiltrating lymphocytes, which are also associated to breast cancer heterogeneity, might provide an opportunity for tailored studies. This review highlights current knowledge of the association of radiotherapy and immunotherapy in the setting of breast cancer and attempts to highlight the therapeutic opportunities among breast cancer heterogeneity.
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Affiliation(s)
- Pelagia G Tsoutsou
- Division of Oncology, Radio-oncology Department, Vaudois University Hospital Centre (CHUV), Lausanne, Switzerland.,Radio-Oncology Research Laboratory, Vaudois University Hospital Centre (CHUV), Epalinges, Switzerland.,Radiation Oncology Department, Hôpital Neuchâtelois, La Chaux-de-Fonds, Switzerland
| | - Khalil Zaman
- Department of Oncology, Breast Center, Vaudois University Hospital Centre (CHUV), Lausanne, Switzerland
| | - Silvia Martin Lluesma
- Department of Oncology, Center of Experimental Therapeutics, Ludwig Center for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Laurene Cagnon
- Department of Oncology, Center of Experimental Therapeutics, Ludwig Center for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Lana Kandalaft
- Department of Oncology, Center of Experimental Therapeutics, Ludwig Center for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Marie-Catherine Vozenin
- Radio-Oncology Research Laboratory, Vaudois University Hospital Centre (CHUV), Epalinges, Switzerland
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5
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Zöller T, Wittenbrink M, Hoffmeister M, Steinle A. Cutting an NKG2D Ligand Short: Cellular Processing of the Peculiar Human NKG2D Ligand ULBP4. Front Immunol 2018; 9:620. [PMID: 29651291 PMCID: PMC5884875 DOI: 10.3389/fimmu.2018.00620] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/12/2018] [Indexed: 12/25/2022] Open
Abstract
Stress-induced cell surface expression of MHC class I-related glycoproteins of the MIC and ULBP families allows for immune recognition of dangerous "self cells" by human cytotoxic lymphocytes via the NKG2D receptor. With two MIC molecules (MICA and MICB) and six ULBP molecules (ULBP1-6), there are a total of eight human NKG2D ligands (NKG2DL). Since the discovery of the NKG2D-NKG2DL system, the cause for both redundancy and diversity of NKG2DL has been a major and ongoing matter of debate. NKG2DL diversity has been attributed, among others, to the selective pressure by viral immunoevasins, to diverse regulation of expression, to differential tissue expression as well as to variations in receptor interactions. Here, we critically review the current state of knowledge on the poorly studied human NKG2DL ULBP4. Summarizing available facts and previous studies, we picture ULBP4 as a peculiar ULBP family member distinct from other ULBP family members by various aspects. In addition, we provide novel experimental evidence suggesting that cellular processing gives rise to mature ULBP4 glycoproteins different to previous reports. Finally, we report on the proteolytic release of soluble ULBP4 and discuss these results in the light of known mechanisms for generation of soluble NKG2DL.
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Affiliation(s)
- Tobias Zöller
- Institute for Molecular Medicine, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Mareike Wittenbrink
- Institute for Molecular Medicine, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Meike Hoffmeister
- Institute of Biochemistry II, Goethe University Frankfurt am Main, Frankfurt am Main, Germany.,Brandenburg Medical School (MHB) Theodor Fontane, Institute of Biochemistry, Neuruppin, Germany
| | - Alexander Steinle
- Institute for Molecular Medicine, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
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6
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Zhang Y, Petropoulos S, Liu J, Cheishvili D, Zhou R, Dymov S, Li K, Li N, Szyf M. The signature of liver cancer in immune cells DNA methylation. Clin Epigenetics 2018; 10:8. [PMID: 29375724 PMCID: PMC5774119 DOI: 10.1186/s13148-017-0436-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 12/15/2017] [Indexed: 12/16/2022] Open
Abstract
Background The idea that changes to the host immune system are critical for cancer progression was proposed a century ago and recently regained experimental support. Results Herein, the hypothesis that hepatocellular carcinoma (HCC) leaves a molecular signature in the host peripheral immune system was tested by profiling DNA methylation in peripheral blood mononuclear cells (PBMC) and T cells from a discovery cohort (n = 69) of healthy controls, chronic hepatitis, and HCC using Illumina 450K platform and was validated in two validation sets (n = 80 and n = 48) using pyrosequencing. Conclusions The study reveals a broad signature of hepatocellular carcinoma in PBMC and T cells DNA methylation which discriminates early HCC stage from chronic hepatitis B and C and healthy controls, intensifies with progression of HCC, and is highly enriched in immune function-related genes such as PD-1, a current cancer immunotherapy target. These data also support the feasibility of using these profiles for early detection of HCC.
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Affiliation(s)
- Yonghong Zhang
- 1Beijing Youan Hospital, Capital Medical School, Beijing, China
| | - Sophie Petropoulos
- 2Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6 Canada.,3Deparment of Clinical Science, Karolinska Institutet, Alfred Nobels Allé 8, 141 52 Huddinge, Sweden
| | - Jinhua Liu
- 1Beijing Youan Hospital, Capital Medical School, Beijing, China
| | - David Cheishvili
- 2Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6 Canada.,Montreal EpiTerapia Inc., 4567 Cecile, H9K1N2, Montreal, QC Canada
| | - Rudy Zhou
- 2Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6 Canada
| | - Sergiy Dymov
- 2Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6 Canada
| | - Kang Li
- 1Beijing Youan Hospital, Capital Medical School, Beijing, China
| | - Ning Li
- 1Beijing Youan Hospital, Capital Medical School, Beijing, China
| | - Moshe Szyf
- 2Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6 Canada
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Huang YX, Chen XT, Guo KY, Li YH, Wu BY, Song CY, He YJ. Sunitinib Induces NK-κB-dependent NKG2D Ligand Expression in Nasopharyngeal Carcinoma and Hepatoma Cells. J Immunother 2018; 40:164-174. [PMID: 28452850 DOI: 10.1097/cji.0000000000000168] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Multitargeted tyrosine kinase inhibitors (MTKIs) have been shown to combine with natural killer (NK) cell adoptive transfer for the treatment in various cancers. MTKIs sensitize cancer cells to NK cell therapy through upregulation of nature killer group 2 member D ligands (NKG2DLs) on tumor cells. However, the molecular mechanism of MTKIs-mediated upregulation of NKG2DLs is still unknown. In this study, we confirmed sunitinib induced downregulation of its targets, such as vascular endothelial growth factor, platelet-derived growth factor, and c-kit in multiple-drug-resistant nasopharyngeal carcinoma cell line CNE2/DDP and hepatoma cell line HepG2. Then, we further showed sunitinib induced cell proliferation inhibition, apoptosis, and DNA damage in CNE2/DDP and HepG2 cells. Coculture experiments showed that sunitinib-treated CNE2/DDP and HepG2 cells were able to increase the activation and cytotoxicity of NK cells. Quantitative polymerase chain reaction results showed that sunitinib upregulated NKG2DLs, apoptotic genes, DNA damage repair genes, and nuclear factor (NF)-κβ family genes. Silencing of NF-κβ1, NF-κβ2, or RelB (NF-κβ pathway) inhibited sunitinib-induced upregulation of NKG2DLs. Taken together, we concluded that sunitinib upregulated NKG2DLs through NF-κβ signaling noncanonical pathway which might mediate higher cytotoxic sensitivity of CNE2/DDP and HepG2 cells to NK cells.
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Affiliation(s)
- Yu-Xian Huang
- *Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China †Mount Sinai School of Medicine, Institute of Genomics and Multiscale Biology, New York State University, New York, NY
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8
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Demoulin B, Cook WJ, Murad J, Graber DJ, Sentman ML, Lonez C, Gilham DE, Sentman CL, Agaugue S. Exploiting natural killer group 2D receptors for CAR T-cell therapy. Future Oncol 2017; 13:1593-1605. [PMID: 28613086 DOI: 10.2217/fon-2017-0102] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Chimeric antigen receptors (CARs) are genetically engineered proteins that combine an extracellular antigen-specific recognition domain with one or several intracellular T-cell signaling domains. When expressed in T cells, these CARs specifically trigger T-cell activation upon antigen recognition. While the clinical proof of principle of CAR T-cell therapy has been established in hematological cancers, CAR T cells are only at the early stages of being explored to tackle solid cancers. This special report discusses the concept of exploiting natural killer cell receptors as an approach that could broaden the specificity of CAR T cells and potentially enhance the efficacy of this therapy against solid tumors. New data demonstrating feasibility of this approach in humans and supporting the ongoing clinical trial are also presented.
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Affiliation(s)
- Benjamin Demoulin
- Research & Development Department, Celyad SA, Mont-Saint-Guibert, Belgium
| | - W James Cook
- Center for Sy+nthetic Immunity, Department of Microbiology & Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | | | - David J Graber
- Center for Sy+nthetic Immunity, Department of Microbiology & Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Marie-Louise Sentman
- Center for Sy+nthetic Immunity, Department of Microbiology & Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Caroline Lonez
- Research & Development Department, Celyad SA, Mont-Saint-Guibert, Belgium
| | - David E Gilham
- Research & Development Department, Celyad SA, Mont-Saint-Guibert, Belgium
| | - Charles L Sentman
- Center for Sy+nthetic Immunity, Department of Microbiology & Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Sophie Agaugue
- Research & Development Department, Celyad SA, Mont-Saint-Guibert, Belgium
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9
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Lotfi R, Kaltenmeier C, Lotze MT, Bergmann C. Until Death Do Us Part: Necrosis and Oxidation Promote the Tumor Microenvironment. Transfus Med Hemother 2016; 43:120-32. [PMID: 27226794 DOI: 10.1159/000444941] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/23/2016] [Indexed: 12/12/2022] Open
Abstract
Tumor proliferation is concomitant with autophagy, limited apoptosis, and resultant necrosis. Necrosis is associated with the release of damage-associated molecular pattern molecules (DAMPs), which act as 'danger signals', recruiting inflammatory cells, inducing immune responses, and promoting wound healing. Most of the current treatment strategies for cancer (chemotherapy, radiation therapy, hormonal therapy) promote DAMP release following therapy-induced tumor death by necroptosis and necrosis. Myeloid cells (monocytes, dendritic cells (DCs), and granulocytes), as well as mesenchymal stromal cells (MSCs) belong to the early immigrants in response to unscheduled cell death, initiating and modulating the subsequent inflammatory response. Responding to DAMPs, MSCs, and DCs promote an immunosuppressive milieu, while eosinophils induce oxidative conditions limiting the biologic activity of DAMPs over time and distance. Regulatory T cells are strongly affected by pattern recognition receptor signaling in the tumor microenvironment and limit immune reactivity coordinately with myeloid-derived suppressor cells. Means to 'aerobically' oxidize DAMPs provide a novel strategy for limiting tumor progression. The present article summarizes our current understanding of the impact of necrosis on the tumor microenvironment and the influence of oxidative conditions found within this setting.
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Affiliation(s)
- Ramin Lotfi
- Institute for Transfusion Medicine, University Hospital Ulm, Ulm, Germany; Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Services Baden-Württemberg-Hessen, Ulm, Germany
| | - Christof Kaltenmeier
- University of Pittsburgh Schools of the Health Sciences G.27A Hillman Cancer Center, Pittsburgh, PA, USA
| | - Michael T Lotze
- University of Pittsburgh Schools of the Health Sciences G.27A Hillman Cancer Center, Pittsburgh, PA, USA
| | - Christoph Bergmann
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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10
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Kim JH, Lee JK. Sesamolin enhances NK cell lysis activity by increasing the expression of NKG2D ligands on Burkitt's lymphoma cells. Int Immunopharmacol 2015; 28:977-84. [PMID: 26298637 DOI: 10.1016/j.intimp.2015.08.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/01/2015] [Accepted: 08/11/2015] [Indexed: 12/28/2022]
Abstract
Sesamolin and sesamin are representative lignans found in sesame seed. The present study was designed to demonstrate the anti-cancer activity of sesamolin achieved by increasing the expression level of NKG2D ligands on Raji cells, which are derived from Burkitt's lymphoma. The anti-cancer activity of sesamolin was also compared with that of sesamin. The cytolysis activity of NK cells against Raji was elevated by the pretreatment of sesamolin on Raji, but not by sesamin. We found that higher NKG2D ligand expression increased the sensitivity of sesamolin-treated Raji to NK cell lysis, resulting from a more active ERK signaling pathway. Our results provide evidence that targeting the ERK signaling pathway may enhance the antitumor activity of lignans and that there is a potential immunotherapeutic value for cancer treatment.
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Affiliation(s)
- Jeong Hwa Kim
- Department of Biology Education, College of Education, Chungbuk National University, Chungbuk 361-763, Republic of Korea; College of Pharmacy, Chungbuk National University, Chungbuk 361-763, Republic of Korea
| | - Jae Kwon Lee
- Department of Biology Education, College of Education, Chungbuk National University, Chungbuk 361-763, Republic of Korea.
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11
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Xuan XY, Zhang JF, Hu GM, Li QR, Liu PP, Du Y. Upregulated expression of NKG2D and its ligands give potential therapeutic targets for patients with thymoma. Cancer Gene Ther 2015; 22:368-74. [PMID: 26113176 DOI: 10.1038/cgt.2015.29] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/29/2015] [Accepted: 04/30/2015] [Indexed: 02/06/2023]
Abstract
The activating receptor NKG2D (natural killer group 2, member D) of natural killer (NK) cells promotes tumor immune surveillance by targeting ligands selectively induced on cancer cells, and thus having an important role in antitumor immune response. Because these ligands are not widely expressed on healthy adult tissue, NKG2D ligands may present as useful target for immunotherapeutic approaches in cancer. In this study, to elucidate the role of NKG2D-NKG2D ligand interaction in thymoma tissues and to evaluate the potential role of NKG2D ligands as therapeutic target for thymoma, we examined the expression of NKG2D and its specific ligands: MICA (major histocompatibility complex class I chain-related protein A), MICB (major histocompatibility complex class I chain-related protein B) and ULBP (UL16-binding protein) in 36 thymomas (6 subtype A, 6 subtype AB, 8 subtype B1, 5 subtype B2, 6 subtype B3 and 5 subtype C), 15 thymic atrophy and 8 thymic hyperplasia by immunohistochemistry and reverse transcription-real-time-PCR methods. We demonstrated that both mRNA and protein levels of NKG2D, MICA, MICB and ULBP were upregulated in six types of thymomas compared with those in atrophic thymus or proliferating thymus. Furthermore, the NKG2D ligands were found to be frequently coexpressed on thymoma cells. Furthermore, the expression of MICA, MICB and ULBP in subtype C was higher compared with those in subtype A, AB, B1, B2 and B3. Thus, we concluded that high expressions of NKG2D, MICA, MICB and ULBP1 were shown in patients with thymoma, and this may enhance the recognition function of NK cells to eliminate tumor cells. MICA, MICB and ULBP presented an attractive target for thymoma therapy. The abnormal expression of NKG2D, MICA, MICB and ULBP1 can provide us with evidence of the occurrence of thymoma and could also be used as a target in the treatment of thymoma.
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Affiliation(s)
- X Y Xuan
- Department of Immunology and Microbiology, Basic Medical College, Zhengzhou University, Zhengzhou, China
| | - J F Zhang
- Department of Laboratory, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - G M Hu
- Department of Pathology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Q R Li
- Department of Immunology and Microbiology, Basic Medical College, Zhengzhou University, Zhengzhou, China
| | - P P Liu
- Department of Immunology and Microbiology, Basic Medical College, Zhengzhou University, Zhengzhou, China
| | - Y Du
- Department of Immunology and Microbiology, Basic Medical College, Zhengzhou University, Zhengzhou, China
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12
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Naringenin enhances NK cell lysis activity by increasing the expression of NKG2D ligands on Burkitt's lymphoma cells. Arch Pharm Res 2015; 38:2042-8. [PMID: 26100136 DOI: 10.1007/s12272-015-0624-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/10/2015] [Indexed: 10/23/2022]
Abstract
Natural killer (NK) cells are capable of identifying and killing tumor cells as well as virus infected cells without pre-sensitization. NK cells express activating and inhibitory receptors, and can distinguish between normal and tumor cells. The present study was designed to demonstrate the importance of the expression level of NKG2D ligands on the Burkitt's lymphoma cell line, Raji, in enhancing NK cell cytolytic activity. Various flavonoids were used as stimulants to enhance the expression of NKG2D ligands. NK cell lysis activity against Raji was not changed by pre-treatment of Raji with luteolin, kaempferol, taxifolin and hesperetin. However, treatment of Raji with naringenin showed increased sensitivity to NK cell lysis than untreated control cells. The activity of naringenin was due to enhanced NKG2D ligand expression. These results provide evidence that narigenin's antitumor activity may be due to targeting of NKG2D ligand expression and suggests a possible immunotherapeutic role for cancer treatment.
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13
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Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
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Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
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14
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Santoiemma PP, Powell DJ. Tumor infiltrating lymphocytes in ovarian cancer. Cancer Biol Ther 2015. [PMID: 25894333 DOI: 10.1080/15384047.2015.1040960]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022] Open
Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
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Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
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15
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Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
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Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
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16
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Jasinski-Bergner S, Mandelboim O, Seliger B. The role of microRNAs in the control of innate immune response in cancer. J Natl Cancer Inst 2014; 106:dju257. [PMID: 25217579 DOI: 10.1093/jnci/dju257] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Ligands for receptors of natural killer (NK) cells and CD8(+) cytotoxic T lymphocytes (CTL), such as the inhibitory nonclassical HLA-G, the activating stress-induced major histocompatibility complex class I-related antigens MICA and MICB, and/or the UL16-binding proteins (ULBPs), are often aberrantly expressed upon viral infection and neoplastic transformation, thereby preventing virus-infected or malignant-transformed cells from elimination by immune effector cells. Recently, it has been shown that ligands of both NK and CD8(+) T cells are regulated by a number of cellular and/or viral microRNAs (miRs). These miRs are involved in shaping the antiviral and/or antitumoral immune responses as well as neoplastic growth properties. This review summarizes the expression pattern and function of miRs directed against selected NK and T cell receptor ligands, their putative role in shaping immune surveillance and tumorigenicity, and their clinical relevance. In addition, the potential role of RNA-binding proteins in the post-transcriptional gene regulation of these ligands will be discussed.
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Affiliation(s)
- Simon Jasinski-Bergner
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM)
| | - Ofer Mandelboim
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM)
| | - Barbara Seliger
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM).
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17
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Inflammation-related genetic variations and survival in patients with advanced non-small cell lung cancer receiving first-line chemotherapy. Clin Pharmacol Ther 2014; 96:360-369. [PMID: 24755914 PMCID: PMC4141040 DOI: 10.1038/clpt.2014.89] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 04/15/2014] [Indexed: 12/17/2022]
Abstract
Background accurate prognostic prediction is challenging for advanced-stage non-small cell lung cancer (NSCLC) patients. Methods we systematically investigated genetic variants within inflammation pathway as potential prognostic markers for advanced-stage NSCLC patients treated with first-line chemotherapy. A discovery phase in 502 patients and an internal validation in 335 patients were completed at MD Anderson Cancer Center. External validation was performed in 371 patients at Harvard University. Results a missense SNP (HLA-DOB:rs2071554) predicted to influence protein function was significantly associated with poor survival in the discovery (HR:1.46, 95% CI:1.02-2.09), internal validation (HR:1.51, 95% CI:1.02-2.25), and external validation (HR:1.52, 95% CI:1.01-2.29) populations. KLRK1:rs2900420 was associated with a reduced risk in the discovery (HR:0.76, 95% CI:0.60-0.96), internal validation (HR:0.77, 95% CI:0.61-0.99), and external validation (HR:0.80, 95% CI:0.63-1.02) populations. A strong cumulative effect was observed for these SNPs on overall survival. Conclusions Genetic variations in inflammation-related genes could have potential to complement prediction of prognosis.
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Scarlett UK, Conejo-Garcia JR. Modulating the tumor immune microenvironment as an ovarian cancer treatment strategy. ACTA ACUST UNITED AC 2014; 7:413-419. [PMID: 24039628 DOI: 10.1586/eog.12.41] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
After more than 30 years of iterations of surgical debulking plus chemotherapy, the need for complementary ovarian cancer treatments has become clear. In the ovarian cancer microenvironment, myeloid immunosuppressive leukocytes, lymphocytes, fibroblasts and endothelial cells, as well as their secreted products, surface molecules and paracrine survival factors, all provide opportunities for novel interventions. The potential of targeting microenvironmental elements in ovarian cancer patients is underscored by recently successful anti-angiogenic therapies. The compartmentalized nature of ovarian cancer, its immunogenicity and its accessibility make it an ideal disease for targeting non-tumor host cells. This review discusses the 'state-of-the-art' of the field, with an emphasis on the potential of modulating the activity of abundant microenvironmental immune cells, which govern both angiogenesis and immunosuppression.
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Affiliation(s)
- Uciane K Scarlett
- Tumor Microenvironment and Metastasis Program. The Wistar Institute. Philadelphia, PA 19104, USA
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19
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Valproic acid upregulates NKG2D ligand expression through an ERK-dependent mechanism and potentially enhances NK cell-mediated lysis of myeloma. Neoplasia 2013; 14:1178-89. [PMID: 23308050 DOI: 10.1593/neo.121236] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 10/08/2012] [Accepted: 10/12/2012] [Indexed: 02/04/2023] Open
Abstract
Modulation of the antitumor immune response through the engagement of NKG2D receptors with their ligands (L) on targets represents a promising therapeutic approach against cancer. In this study, we tested the effect of valproic acid (VPA), a histone deacetylase (HDAC) inhibitor, on the expression of NKG2D ligands in myeloma cells. We demonstrated that VPA was able to upregulate both protein and mRNA expression of major histocompatibility complex class I-related chain (MIC) A/B and UL16-binding protein (ULBP) 2 without any significant effect on the expression of ULBP1, ULBP3, and ULBP4 or induction of other natural killer (NK) cell ligands, such as NKp30-L, NKp44-L, and NKp46-L in myeloma cells. A (51)Cr release assay and degranulation assay indicated that the induction of MICA/B and ULBP2 augmented NK cell-mediated lysis of myeloma cells, which was abolished by the addition of a blocking NKG2D antibody. Activation of constitutively phosphorylated extracellular signal-regulated kinase (ERK) by VPA is essential for the up-regulation of MICA/B and ULBP2 expressions. Inhibition of ERK using ERK inhibitor PD98059 decreased both MICA/B and ULBP2 expressions and NK cell cytotoxicity. Furthermore, overexpression of constitutively active ERK in ARK resulted in increased MICA/B and ULBP2 expressions and enhanced NK cell lysis. These data indicate that increased sensitivity of VPA-treated myeloma cells to NK cell lysis is caused by higher NKG2D ligand expression, resulting from more active ERK signaling pathway. Our results provide evidence that targeting ERK signaling pathway may be an additional mechanism supporting the antimyeloma activity of HDAC inhibitors and suggest its possible immunotherapeutic value for myeloma treatment.
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20
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Patankar MS, Gubbels JAA, Felder M, Connor JP. The immunomodulating roles of glycoproteins in epithelial ovarian cancer. Front Biosci (Elite Ed) 2012; 4:631-50. [PMID: 22201900 DOI: 10.2741/405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The complexity of the immune system demands an intricate defense mechanism by tumors. Ovarian and other tumors employ specific glycoproteins and the associated glycan sequences to modulate immune responses. Glycoproteins enable tumor cells that express or secrete these molecules to evade immune cell attack and induce the immune system to promote tumor growth. This review focuses first on the immune environment in ovarian cancer, and the mechanisms of activation and inhibition that immune cells undergo in order to either attack or ignore a target cell. Next we illustrate the immunomodulatory roles of ovarian cancer-associated glycans and glycoproteins in 1. preventing immune synapse formation, 2. serving as ligands of immune cell receptors, 3. scavenging cytokines and chemokines, and 4. participating in the formation of autoantibodies against the tumor. The importance of these immunomodulating strategies from the view points of understanding the tumor immunology of ovarian tumors, potential origin of such mechanisms, and specific strategies to circumvent the glycoconjugate-mediated suppression of immune responses is discussed in this review.
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Affiliation(s)
- Manish S Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, WI 53792-6188, USA.
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21
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Ye Q, Loisiou M, Levine BL, Suhoski MM, Riley JL, June CH, Coukos G, Powell DJ. Engineered artificial antigen presenting cells facilitate direct and efficient expansion of tumor infiltrating lymphocytes. J Transl Med 2011; 9:131. [PMID: 21827675 PMCID: PMC3162913 DOI: 10.1186/1479-5876-9-131] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Accepted: 08/09/2011] [Indexed: 11/26/2022] Open
Abstract
Background Development of a standardized platform for the rapid expansion of tumor-infiltrating lymphocytes (TILs) with anti-tumor function from patients with limited TIL numbers or tumor tissues challenges their clinical application. Methods To facilitate adoptive immunotherapy, we applied genetically-engineered K562 cell-based artificial antigen presenting cells (aAPCs) for the direct and rapid expansion of TILs isolated from primary cancer specimens. Results TILs outgrown in IL-2 undergo rapid, CD28-independent expansion in response to aAPC stimulation that requires provision of exogenous IL-2 cytokine support. aAPCs induce numerical expansion of TILs that is statistically similar to an established rapid expansion method at a 100-fold lower feeder cell to TIL ratio, and greater than those achievable using anti-CD3/CD28 activation beads or extended IL-2 culture. aAPC-expanded TILs undergo numerical expansion of tumor antigen-specific cells, remain amenable to secondary aAPC-based expansion, and have low CD4/CD8 ratios and FOXP3+ CD4+ cell frequencies. TILs can also be expanded directly from fresh enzyme-digested tumor specimens when pulsed with aAPCs. These "young" TILs are tumor-reactive, positively skewed in CD8+ lymphocyte composition, CD28 and CD27 expression, and contain fewer FOXP3+ T cells compared to parallel IL-2 cultures. Conclusion Genetically-enhanced aAPCs represent a standardized, "off-the-shelf" platform for the direct ex vivo expansion of TILs of suitable number, phenotype and function for use in adoptive immunotherapy.
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Affiliation(s)
- Qunrui Ye
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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22
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Cheng M, Ma J, Chen Y, Zhang J, Zhao W, Zhang J, Wei H, Ling B, Sun R, Tian Z. Establishment, characterization, and successful adaptive therapy against human tumors of NKG cell, a new human NK cell line. Cell Transplant 2011; 20:1731-46. [PMID: 21669033 DOI: 10.3727/096368911x580536] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Natural killer (NK) cells play important roles in adoptive cellular immunotherapy against certain human cancers. This study aims to establish a new human NK cell line and to study its role for adoptive cancer immunotherapy. Peripheral blood samples were collected from 54 patients to establish the NK cell line. A new human NK cell line, termed as NKG, was established from a Chinese male patient with rapidly progressive non-Hodgkin's lymphoma. NKG cells showed LGL morphology and were phenotypically identified as CD56(bright) NK cell with CD16(-), CD27(-), CD3(-), αβTCR(-), γδTCR(-), CD4(-), CD8(-), CD19(-), CD161(-), CD45(+), CXCR4(+), CCR7(+), CXCR1(-), and CX3CR1(-). NKG cells showed high expression of adhesive molecules (CD2, CD58, CD11a, CD54, CD11b, CD11c), an array of activating receptors (NKp30, NKp44, NKp46, NKG2D, NKG2C), and cytolysis-related receptors and molecules (TRAIL, FasL, granzyme B, perforin, IFN-γ). The cytotoxicity of NKG cells against tumor cells was higher than that of the established NK cell lines NK-92, NKL, and YT. NKG cell cytotoxicity depended on the presence of NKG2D and NKp30. When irradiated with 8 Gy, NKG cells were still with high cytotoxicity and activity in vitro and with safety in vivo, but without proliferation. Further, the irradiated NKG cells exhibited strong cytotoxicity against human primary ovarian cancer cells in vitro, and against human ovarian cancer in a mouse xenograft model. The adoptive transfer of NKG cells significantly inhibited the ovarian tumor growth, decreased the mortality rate and prolonged the survival, even in cases of advanced diseases. A number of NKG cells were detected in the ovarian tumor tissues during cell therapy. In use of the new human NK cell line, NKG would a promising cellular candidate for adoptive immunotherapy of human cancer.
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Affiliation(s)
- Min Cheng
- Institute of Immunology, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, China
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23
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Cubillos-Ruiz JR, Martinez D, Scarlett UK, Rutkowski MR, Nesbeth YC, Camposeco-Jacobs AL, Conejo-Garcia JR. CD277 is a negative co-stimulatory molecule universally expressed by ovarian cancer microenvironmental cells. Oncotarget 2011; 1:329-38. [PMID: 21113407 PMCID: PMC2992324 DOI: 10.18632/oncotarget.165] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
CD277, a member of the butyrophilin subfamily 3 (BTN3), shares significant sequence similarities and predicted common structural features with inhibitory B7-H4 and other members of the B7 superfamily. Here we report that CD277 is consistently expressed in stromal, as well as tumor cells in the microenvironment of human advanced ovarian carcinoma specimens, both of primary and metastatic origin. MHC-II+ myeloid antigenpresenting leukocytes (dendritic cells and macrophages) express significantly higher levels of surface CD277, compared to other tumor-infiltrating leukocyte subsets, and this expression is significantly up-regulated by multiple common tumor microenvironmental signals, including VEGF and CCL3. Most importantly, engagement of CD277 on the surface of TCR-stimulated T cells inhibits their otherwise robust expansion and production of Th1 cytokines by preventing the up-regulation of cFLIP. Our results point to a role for CD277 up-regulated by microenvironmental signals in the acquisition of a regulatory phenotype by tumor-associated myeloid cells. Consequently, CD277, and likely other butyrophilins and butyrophilin-like molecules, emerge as regular players in the orchestration of immunosuppressive networks in ovarian cancer, and therefore new targets for interventions to overcome immune evasion and boost anti-tumor immunity in cancer patients.
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Affiliation(s)
- Juan R Cubillos-Ruiz
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756, USA
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24
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Xu X, Rao GS, Groh V, Spies T, Gattuso P, Kaufman HL, Plate J, Prinz RA. Major histocompatibility complex class I-related chain A/B (MICA/B) expression in tumor tissue and serum of pancreatic cancer: role of uric acid accumulation in gemcitabine-induced MICA/B expression. BMC Cancer 2011; 11:194. [PMID: 21605422 PMCID: PMC3118197 DOI: 10.1186/1471-2407-11-194] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 05/23/2011] [Indexed: 02/07/2023] Open
Abstract
Background Major histocompatibility complex class I-related chain A and B (MICA/B) are two stress-inducible ligands that bind the immunoreceptor NKG2D and play an important role in mediating the cyotoxicity of NK and T cells. In this study, we sought to study MICA/B expression in pancreatic cancer and to determine whether and how genotoxic drugs such as gemcitabine can affect MICA/B expression and natural killer cytotoxity. Methods Seven pancreatic cancer cell lines were analyzed for MICA/B expression by flow cytometry and for their sensitivity to NK-92 cell killing by a 51Cr release assay. MICA/B expression in tumor tissues and sera of pancreatic cancer was analyzed by immunohistochemical staining (IHC) and ELISA, respectively. Results Two MICA/B-positive cell lines were sensitive to the cytotoxic activity of NK-92 cells. Other two MICA/B-positive cell lines and three MICA/B-negative cell lines were resistant to NK-92 cell killing. MICA/B expression was positive in 17 of 25 (68%) pancreatic ductal adenocarcinomas but not in normal pancreatic ductal epithelial cells. Serum MICA/B levels were significantly elevated in patients with pancreatic adenocarcinomas but did not correlate with the stage of pancreatic cancer and patient survival. Gemcitabine therapy led to increased serum MICA levels in 6 of 10 patients with detectable serum MICA. Allopurinol, an inhibitor of xanthine oxidoreductase that converts xanthine to uric acid, blocked uric acid production, MICA/B expression, and sensitivity to NK-92 cell killing toward a PANC-1 cancer cell line exposed to radiation and two genotoxic drugs, gemcitabine and 5-fluorouracil. Conclusions The levels of MICA/B expression in serum and tissue of pancreatic cancer are elevated. DNA damage-induced MICA/B expression is mediated through increased uric acid production.
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Affiliation(s)
- Xiulong Xu
- Department of General Surgery, Rush University Medical Center, Chicago, IL 60612, USA.
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25
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Hanaoka N, Jabri B, Dai Z, Ciszewski C, Stevens AM, Yee C, Nakakuma H, Spies T, Groh V. NKG2D initiates caspase-mediated CD3zeta degradation and lymphocyte receptor impairments associated with human cancer and autoimmune disease. THE JOURNAL OF IMMUNOLOGY 2010; 185:5732-42. [PMID: 20926796 DOI: 10.4049/jimmunol.1002092] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Deficiencies of the T cell and NK cell CD3ζ signaling adapter protein in patients with cancer and autoimmune diseases are well documented, but mechanistic explanations are fragmentary. The stimulatory NKG2D receptor on T and NK cells mediates tumor immunity but can also promote local and systemic immune suppression in conditions of persistent NKG2D ligand induction that include cancer and certain autoimmune diseases. In this paper, we provide evidence that establishes a causative link between CD3ζ impairment and chronic NKG2D stimulation due to pathological ligand expression. We describe a mechanism whereby NKG2D signaling in human T and NK cells initiates Fas ligand/Fas-mediated caspase-3/-7 activation and resultant CD3ζ degradation. As a consequence, the functional capacities of the TCR, the low-affinity Fc receptor for IgG, and the NKp30 and NKp46 natural cytotoxicity receptors, which all signal through CD3ζ, are impaired. These findings are extended to ex vivo phenotypes of T and NK cells among tumor-infiltrating lymphocytes and in peripheral blood from patients with juvenile-onset lupus. Collectively, these results indicate that pathological NKG2D ligand expression leads to simultaneous impairment of multiple CD3ζ-dependent receptor functions, thus offering an explanation that may be applicable to CD3ζ deficiencies associated with diverse disease conditions.
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Affiliation(s)
- Nobuyoshi Hanaoka
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
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26
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McGilvray RW, Eagle RA, Rolland P, Jafferji I, Trowsdale J, Durrant LG. ULBP2 and RAET1E NKG2D ligands are independent predictors of poor prognosis in ovarian cancer patients. Int J Cancer 2010; 127:1412-20. [PMID: 20054857 DOI: 10.1002/ijc.25156] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The human activating immune receptor, NKG2D, binds to a diverse array of cellular ligands of the MIC and unique long 16 (UL16)-binding protein (ULBP)/retinoic acid early transcript (RAET) family. NKG2D is thought to participate in anticancer immune responses. By using tissue microarrays representing over 300 patients with defined clinicopathological factors, we present the first comprehensive screen of the expression of all NKG2D ligands in primary ovarian cancers. NKG2D ligands were expressed by the majority of tumors; however, the level of expression varied considerably. By categorizing each tumor as having negative, low or high expression, it was shown that high expression of several NKG2D ligands is inversely correlated with disease survival. Patients whose tumors had high expression of RAET1E (p = 0.037), ULBP1 (p = 0.036) and ULBP3 (p = 0.004) surviving a median of 11, 14 and 11 months, respectively, compared with disease-specific survival of 29, 30 and 25 months in patients whose tumors showed no expression of these ligands. These results contrast with previous findings showing that high level NKG2D ligand expression is associated with good prognosis in colorectal cancer and suggest a fundamental difference in the involvement of NKG2D-mediated immunity in these two types of cancer. By using multivariate analysis, the factors retaining independent prognostic significance were International Federation of Gynecologists and Obstetricians stage (p < 0.001), presence of residual disease (p = 0.003), ULBP2 (p = 0.042) and RAET1E (p = 0.030).
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Affiliation(s)
- Roger W McGilvray
- Academic Division of Clinical Oncology, University of Nottingham, City Hospital Campus, Nottingham, United Kingdom
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27
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Gubbels JA, Claussen N, Kapur AK, Connor JP, Patankar MS. The detection, treatment, and biology of epithelial ovarian cancer. J Ovarian Res 2010; 3:8. [PMID: 20350313 PMCID: PMC2856581 DOI: 10.1186/1757-2215-3-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 03/29/2010] [Indexed: 02/07/2023] Open
Abstract
Ovarian cancer is particularly insidious in nature. Its ability to go undetected until late stages coupled with its non-descript signs and symptoms make it the seventh leading cause of cancer related deaths in women. Additionally, the lack of sensitive diagnostic tools and resistance to widely accepted chemotherapy regimens make ovarian cancer devastating to patients and families and frustrating to medical practitioners and researchers. Here, we provide an in-depth review of the theories describing the origin of ovarian cancer, molecular factors that influence its growth and development, and standard methods for detection and treatment. Special emphasis is focused on interactions between ovarian tumors and the innate and adaptive immune system and attempts that are currently underway to devise novel immunotherapeutic approaches for the treatment of ovarian tumors.
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Affiliation(s)
- Jennifer Aa Gubbels
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, 600 Highland Ave, Madison, WI, 53792, USA.
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28
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Gubbels JAA, Felder M, Horibata S, Belisle JA, Kapur A, Holden H, Petrie S, Migneault M, Rancourt C, Connor JP, Patankar MS. MUC16 provides immune protection by inhibiting synapse formation between NK and ovarian tumor cells. Mol Cancer 2010; 9:11. [PMID: 20089172 PMCID: PMC2818693 DOI: 10.1186/1476-4598-9-11] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Accepted: 01/20/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cancer cells utilize a variety of mechanisms to evade immune detection and attack. Effective immune detection largely relies on the formation of an immune synapse which requires close contact between immune cells and their targets. Here, we show that MUC16, a heavily glycosylated 3-5 million Da mucin expressed on the surface of ovarian tumor cells, inhibits the formation of immune synapses between NK cells and ovarian tumor targets. Our results indicate that MUC16-mediated inhibition of immune synapse formation is an effective mechanism employed by ovarian tumors to evade immune recognition. RESULTS Expression of low levels of MUC16 strongly correlated with an increased number of conjugates and activating immune synapses between ovarian tumor cells and primary naïve NK cells. MUC16-knockdown ovarian tumor cells were more susceptible to lysis by primary NK cells than MUC16 expressing controls. This increased lysis was not due to differences in the expression levels of the ligands for the activating receptors DNAM-1 and NKG2D. The NK cell leukemia cell line (NKL), which does not express KIRs but are positive for DNAM-1 and NKG2D, also conjugated and lysed MUC16-knockdown cells more efficiently than MUC16 expressing controls. Tumor cells that survived the NKL challenge expressed higher levels of MUC16 indicating selective lysis of MUC16(low) targets. The higher csMUC16 levels on the NKL resistant tumor cells correlated with more protection from lysis as compared to target cells that were never exposed to the effectors. CONCLUSION MUC16, a carrier of the tumor marker CA125, has previously been shown to facilitate ovarian tumor metastasis and inhibits NK cell mediated lysis of tumor targets. Our data now demonstrates that MUC16 expressing ovarian cancer cells are protected from recognition by NK cells. The immune protection provided by MUC16 may lead to selective survival of ovarian cancer cells that are more efficient in metastasizing within the peritoneal cavity and also at overcoming anti-tumor innate immune responses.
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Affiliation(s)
- Jennifer A A Gubbels
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI, USA
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Cubillos-Ruiz JR, Engle X, Scarlett UK, Martinez D, Barber A, Elgueta R, Wang L, Nesbeth Y, Durant Y, Gewirtz AT, Sentman CL, Kedl R, Conejo-Garcia JR. Polyethylenimine-based siRNA nanocomplexes reprogram tumor-associated dendritic cells via TLR5 to elicit therapeutic antitumor immunity. J Clin Invest 2009; 119:2231-44. [PMID: 19620771 PMCID: PMC2719935 DOI: 10.1172/jci37716] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Accepted: 05/27/2009] [Indexed: 02/06/2023] Open
Abstract
The success of clinically relevant immunotherapies requires reversing tumor-induced immunosuppression. Here we demonstrated that linear polyethylenimine-based (PEI-based) nanoparticles encapsulating siRNA were preferentially and avidly engulfed by regulatory DCs expressing CD11c and programmed cell death 1-ligand 1 (PD-L1) at ovarian cancer locations in mice. PEI-siRNA uptake transformed these DCs from immunosuppressive cells to efficient antigen-presenting cells that activated tumor-reactive lymphocytes and exerted direct tumoricidal activity, both in vivo and in situ. PEI triggered robust and selective TLR5 activation in vitro and elicited the production of hallmark TLR5-inducible cytokines in WT mice, but not in Tlr5-/- littermates. Thus, PEI is a TLR5 agonist that, to our knowledge, was not previously recognized. In addition, PEI-complexed nontargeting siRNA oligonucleotides stimulated TLR3 and TLR7. The nonspecific activation of multiple TLRs (specifically, TLR5 and TLR7) reversed the tolerogenic phenotype of human and mouse ovarian tumor-associated DCs. In ovarian carcinoma-bearing mice, this induced T cell-mediated tumor regression and prolonged survival in a manner dependent upon myeloid differentiation primary response gene 88 (MyD88; i.e., independent of TLR3). Furthermore, gene-specific siRNA-PEI nanocomplexes that silenced immunosuppressive molecules on mouse tumor-associated DCs elicited discernibly superior antitumor immunity and enhanced therapeutic effects compared with nontargeting siRNA-PEI nanocomplexes. Our results demonstrate that the intrinsic TLR5 and TLR7 stimulation of siRNA-PEI nanoparticles synergizes with the gene-specific silencing activity of siRNA to transform tumor-infiltrating regulatory DCs into DCs capable of promoting therapeutic antitumor immunity.
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Affiliation(s)
- Juan R. Cubillos-Ruiz
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Xavier Engle
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Uciane K. Scarlett
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Diana Martinez
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Amorette Barber
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Raul Elgueta
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Li Wang
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Yolanda Nesbeth
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Yvon Durant
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Andrew T. Gewirtz
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Charles L. Sentman
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Ross Kedl
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
| | - Jose R. Conejo-Garcia
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA.
Nanostructured Polymers Research Center, University of New Hampshire, Durham, New Hampshire, USA.
Department of Pathology, Emory University, Atlanta, Georgia, USA.
Department of Immunology, University of Colorado, Denver, Colorado, USA.
Department of Medicine, Dartmouth Medical School, Lebanon, New Hampshire, USA
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Nesbeth Y, Scarlett U, Cubillos-Ruiz J, Martinez D, Engle X, Turk MJ, Conejo-Garcia JR. CCL5-mediated endogenous antitumor immunity elicited by adoptively transferred lymphocytes and dendritic cell depletion. Cancer Res 2009; 69:6331-8. [PMID: 19602595 DOI: 10.1158/0008-5472.can-08-4329] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Adoptive transfer of antitumor T cells is a promisingly effective therapy for various cancers, but its effect on endogenous antitumor immune mechanisms remains largely unknown. Here, we show that the administration of naive T cells de novo primed for only 7 days against tumor antigens resulted in the durable rejection of otherwise lethal ovarian cancers when coupled with the depletion of tumor-associated immunosuppressive dendritic cells (DC). Therapeutic activity required tumor antigen specificity and perforin expression by the adoptively transferred T cells, but not IFN-gamma production. Importantly, these shortly primed T cells secreted large amounts of CCL5, which was required for their therapeutic benefit. Accordingly, transferred T cells recruited CCR5(+) DCs into the tumor, where they showed distinct immunostimulatory attributes. Activated CCR5(+) host T cells with antitumor activity also accumulated at tumor locations, and endogenous tumor-specific memory T cells remained elevated after the disappearance of transferred lymphocytes. Therefore, persistent, long-lived antitumor immunity was triggered by the administration of ex vivo activated T cells, but was directly mediated by immune cells of host origin. Our data unveil a CCL5-dependent mechanism of awakening endogenous antitumor immunity triggered by ex vivo expanded T cells, which is augmented by tumor-specific targeting of the cancer microenvironment.
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Affiliation(s)
- Yolanda Nesbeth
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA
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31
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Dou J, Wang Y, Wang J, Zhao F, Li Y, Cao M, Hu W, Hu K, He XF, Chu L, Jiang C, Gu N. Antitumor efficacy induced by human ovarian cancer cells secreting IL-21 alone or combination with GM-CSF cytokines in nude mice model. Immunobiology 2009; 214:483-92. [DOI: 10.1016/j.imbio.2008.11.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2008] [Revised: 11/07/2008] [Accepted: 11/09/2008] [Indexed: 10/21/2022]
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Butler JE, Moore MB, Presnell SR, Chan HW, Chalupny NJ, Lutz CT. Proteasome regulation of ULBP1 transcription. THE JOURNAL OF IMMUNOLOGY 2009; 182:6600-9. [PMID: 19414815 DOI: 10.4049/jimmunol.0801214] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Killer lymphocytes recognize stress-activated NKG2D ligands on tumors. We examined NKG2D ligand expression in head and neck squamous cell carcinoma (HNSCC) cells and other cell lines. HNSCC cells typically expressed MHC class I chain-related gene A (MICA), MICB, UL16-binding protein (ULBP)2, and ULBP3, but they were uniformly negative for cell surface ULBP1 and ULBP4. We then studied how cancer treatments affected NKG2D ligand expression. NKG2D ligand expression was not changed by most cancer-relevant treatments. However, bortezomib and other proteasome inhibitor drugs with distinct mechanisms of action dramatically and specifically up-regulated HNSCC ULBP1 mRNA and cell surface protein. Proteasome inhibition also increased RNA for ULBP1 and other NKG2D ligands in nontransformed human keratinocytes. Proteasome inhibitor drugs increased ULBP1 transcription by acting at a site in the 522-bp ULBP1 promoter. Although the DNA damage response pathways mediated by ATM (ataxia-telangiectasia, mutated) and ATR (ATM and Rad3-related) signaling had been reported to up-regulate NKG2D ligand expression, we found that ULBP1 up-regulation was not inhibited by caffeine and wortmannin, inhibitors of ATM/ATR signaling. ULBP1 expression in HNSCC cells was not increased by several ATM/ATR activating treatments, including bleomycin, cisplatin, aphidicolin, and hydroxyurea. Ionizing radiation caused ATM activation in HNSCC cells, but high-level ULBP1 expression was not induced by gamma radiation or UV radiation. Thus, ATM/ATR signaling was neither necessary nor sufficient for high-level ULBP1 expression in human HNSCC cell lines and could not account for the proteasome effect. The selective induction of ULBP1 expression by proteasome inhibitor drugs, along with variable NKG2D ligand expression by human tumor cells, indicates that NKG2D ligand genes are independently regulated.
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Affiliation(s)
- James E Butler
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY 40536, USA
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Abstract
Ovarian cancer remains a challenging disease for which improved treatments are urgently needed. Most patients present with advanced disease that is highly responsive to surgery combined with platinum- and taxane-based chemotherapy, with a state of minimal residual disease being achieved in many cases. However, chemotherapy-resistant recurrent tumors typically appear within 1-5 years and are ultimately fatal. Recently, several groups have shown that ovarian tumors are often infiltrated by activated T cells at the time of diagnosis, and patients with dense infiltrates of CD3+CD8+ T cells experience unexpectedly favorable progression-free and overall survival. Other cell types in the immune infiltrate oppose anti-tumor immunity, including CD4+CD25+FoxP3+ regulatory T cells, CD8+ regulatory T cells, macrophages, and dendritic cells. The composition of immune infiltrates is shaped by the expression of cytokines, chemokines, antigens, major histocompatibility complex molecules, and costimulatory molecules. The relationship between these various immunological factors is reviewed here with a strong emphasis on outcomes data so as to create a knowledge base that is well grounded in clinical reality. With improved understanding of the functional properties of natural CD8+ T-cell responses to ovarian cancer, there is great potential to improve clinical outcomes by amplifying host immunity.
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Affiliation(s)
- Brad H Nelson
- Trev & Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, BC, Canada.
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Hung CF, Wu TC, Monie A, Roden R. Antigen-specific immunotherapy of cervical and ovarian cancer. Immunol Rev 2009; 222:43-69. [PMID: 18363994 DOI: 10.1111/j.1600-065x.2008.00622.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We contrast the efforts to treat ovarian cancer and cervical cancer through vaccination because of their different pathobiology. A plethora of approaches have been developed for therapeutic vaccination against cancer, many of which target defined tumor-associated antigens (TAAs). Persistent infection with oncogenic human papillomavirus (HPV) types causes cervical cancer. Furthermore, cervical cancer patients frequently mount both humoral and T-cell immune responses to the HPV E6 and E7 oncoproteins, whose expression is required for the transformed phenotype. Numerous vaccine studies target these viral TAAs, including recent trials that may enhance clearance of pre-malignant disease. By contrast, little is known about the etiology of epithelial ovarian cancer. Although it is clear that p53 mutation or loss is a critical early event in the development of epithelial ovarian cancer, no precursor lesion has been described for the most common serous histotype, and even the location of its origin is debated. These issues have complicated the selection of appropriate ovarian TAAs and the design of vaccines. Here we focus on mesothelin as a promising ovarian TAA, because it is overexpressed and immunogenic at high frequency in patients, is displayed on the cell surface, and potentially contributes to ovarian cancer biology.
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Affiliation(s)
- Chien-Fu Hung
- Department of Pathology, The Johns Hopkins School of Medicine, Baltimore, MD 21231, USA
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35
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Abstract
Robust T-cell responses without autoimmunity are only possible through a fine balance between activating and inhibitory signals. We have identified a novel modulator of T-cell expansion named proliferation-induced lymphocyte-associated receptor (PILAR). Surface PILAR is markedly up-regulated on CD4 and, to a lesser extent, on CD8 T cells on T-cell receptor engagement. In absence of CD28 costimulation, PILAR signaling through CD161 supports CD3 antibody-dependent and antigen-specificT-cell proliferation by increasing the expression of antiapoptotic Bcl-xL and induces secretion of T helper type 1 cytokines. These effects are abrogated by PILAR blockade with specific antibodies, which decrease surface levels of CD28. In contrast, PILAR induces apoptotic death on naive and early activated T cells if CD161 engagement is blocked. PILAR is expressed by approximately 7% to 10% of CD4 T cells in 2 samples of inflammatory synovial fluid, suggesting a potential role in the pathogenesis of joint inflammation. In addition, in the ovarian cancer microenvironment, effector T cells express PILAR, but not CD161, although expression of both can be augmented ex vivo. Our results indicate that PILAR plays a central role in modulating the extent of T-cell expansion. Manipulation of PILAR signaling may be important for treatment of autoimmune diseases and cancer.
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Yang T, Wall EM, Milne K, Theiss P, Watson P, Nelson BH. CD8+ T Cells Induce Complete Regression of Advanced Ovarian Cancers by an Interleukin (IL)-2/IL-15–Dependent Mechanism. Clin Cancer Res 2007; 13:7172-80. [DOI: 10.1158/1078-0432.ccr-07-1724] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Mao H, Liu Q, Zhang J, Gu H, Wang L, Zhou X, Yin H, Zhang L, Xie F, Jiang G. Effects of specific antisense oligonucleotide inhibition of Fas expression on T cell apoptosis induced by Fas ligand. Int Immunopharmacol 2007; 7:1714-22. [PMID: 17996681 DOI: 10.1016/j.intimp.2007.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Revised: 08/21/2007] [Accepted: 09/05/2007] [Indexed: 01/15/2023]
Abstract
To investigate the effect of specific antisense oligodeoxynucleotide (ASODN) inhibition of Fas expression on T cell apoptosis induced by hepatocarcinoma cells. Fas receptor (Fas) and Fas ligand (FasL) expressed by the hepatocarcinoma cell line HepG2.2.15 and Jurkat T cells were detected by flow cytometry (FCM) and the ability of FasL-inducing T cell apoptosis was tested by co-culture assay in vitro with HepG2.2.15 cells and Jurkat T cells. The Jurkat cells were transfected with Fas-ASODN using lipofectin, and the effects of Fas-ASODN on Fas mRNA level, Fas expression on T cells surface, and apoptosis were investigated by RT-PCR, FCM and co-culture assay, respectively. It was found that HepG2.2.15 cells expressing functional FasL could induce the apoptosis of Jurkat cells as demonstrated by co-culture assays. After the Jurkat cells were transfected with Fas ASODN, the level of Fas mRNA, the expression rate of Fas and the apoptotic rate induced by hepatocarcinoma cells were all decreased. As a conclusion, it is evident that hepatocarcinoma cells expressing FasL can induce apoptosis in Fas-expressing T cells, indicating that transfection of Fas ASODN can partially convert the immune inhibitory condition induced by hepatocarcinoma cells.
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Affiliation(s)
- Haiting Mao
- Institute of Immunology, Shandong University School of Medicine, Jinan, 250012, People's Republic of China.
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Kato N, Tanaka J, Sugita J, Toubai T, Miura Y, Ibata M, Syono Y, Ota S, Kondo T, Asaka M, Imamura M. Regulation of the expression of MHC class I-related chain A, B (MICA, MICB) via chromatin remodeling and its impact on the susceptibility of leukemic cells to the cytotoxicity of NKG2D-expressing cells. Leukemia 2007; 21:2103-8. [PMID: 17625602 DOI: 10.1038/sj.leu.2404862] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2007] [Revised: 06/12/2007] [Accepted: 06/13/2007] [Indexed: 01/20/2023]
Abstract
Innate immune cells such as natural killer (NK) cells play a crucial role in antitumor immune responses. NKG2D is a major activating immunoreceptor expressed in not only NK cells but also CD8+ T cells and shows cytotoxicity against tumors by recognizing its ligands major histocompatibility complex class I-related chain A and B (MICA and MICB) on tumor cells. Recently, it has been suggested that NKG2D-mediated cytotoxicity correlates with the expression levels of NKG2D ligands on target cells. In this study, we were able to increase the expression levels of MICA and MICB on leukemic cell lines and patients' leukemic cells by treatment with trichostatin A (TsA), a histone deacetylase (HDAC) inhibitor. Chromatin immunoprecipitation (ChIP) assays revealed that treatment with TsA resulted in increased acetylation of histone H3 and decreased association with HDAC1 at the promoters of MICA and MICB. Intriguingly, upregulation of MICA and MICB by treatment with TsA led to enhancement of the susceptibility of leukemic cells to the cytotoxicity of NKG2D-expressing cells. Our results suggest that regulation of the expression of NKG2D ligands by treatment with chromatin-remodeling drugs may be an attractive strategy for immunotherapy.
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Affiliation(s)
- N Kato
- Department of Hematology and Oncology, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
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Arina A, Murillo O, Dubrot J, Azpilikueta A, Alfaro C, Pérez-Gracia JL, Bendandi M, Palencia B, Hervás-Stubbs S, Melero I. Cellular liaisons of natural killer lymphocytes in immunology and immunotherapy of cancer. Expert Opin Biol Ther 2007; 7:599-615. [PMID: 17477799 DOI: 10.1517/14712598.7.5.599] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
There is compelling evidence for the role of natural killer (NK) cells in tumor immunosurveillance and their beneficial effects on many experimentally successful immunotherapy strategies. NK cells mediate cell contact-dependent cellular cytotoxicity and produce pro-inflammatory cytokines, but do not rearrange antigen receptors. Their activation depends on various germline-encoded receptors, including CD16, which mediates recognition of antibody-coated target cells. NK cytotoxicity is checked by a repertoire of inhibitory receptors that scan adequate expression of major histocompatibility complex class I molecules on the potential target cell. Functional cross-talk of NK and dendritic cells suggests a critical role for NK cells in the initiation and regulation of cellular immunity. Considerable knowledge on the molecular basis of NK recognition/activation contrasts with a lack of successful translational research on these matters. However, there is plenty of opportunity for targeted intervention of inhibitory/activatory surface receptors and for adoptive cell therapy with autologous or allogeneic NK cells.
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Affiliation(s)
- Ainhoa Arina
- University of Navarra, Centro de Investigación Médica Aplicada and Clinica Universitaria, Gene Therapy Unit, Avda. Pio XII 55, 31008, Pamplona, Spain
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40
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Barber A, Zhang T, DeMars LR, Conejo-Garcia J, Roby KF, Sentman CL. Chimeric NKG2D Receptor–Bearing T Cells as Immunotherapy for Ovarian Cancer. Cancer Res 2007; 67:5003-8. [PMID: 17510432 DOI: 10.1158/0008-5472.can-06-4047] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite advancements in the treatment of ovarian cancer, this disease continues to be a leading cause of cancer death in women. Adoptive transfer of tumor-reactive T cells is a promising antitumor therapy for many cancers. We designed a chimeric receptor linking NKG2D, a natural killer (NK) cell-activating receptor, to the CD3zeta chain of the T-cell receptor to target ovarian tumor cells. Engagement of chimeric NKG2D receptors (chNKG2D) with ligands for NKG2D, which are commonly expressed on tumor cells, leads to T-cell secretion of proinflammatory cytokines and tumor cytotoxicity. In this study, we show that >80% of primary human ovarian cancer samples expressed ligands for NKG2D on the cell surface. The tumor samples expressed MHC class I-related protein A, MICB, and UL-16 binding proteins 1 and 3. ChNKG2D-expressing T cells lysed ovarian cancer cell lines. We show that T cells from ovarian cancer patients that express chNKG2D secreted proinflammatory cytokines when cultured with autologous tumor cells. In addition, we show that chNKG2D T cells can be used therapeutically in a murine model of ovarian cancer. These data indicate that treatment with chNKG2D-expressing T cells is a potential immunotherapy for ovarian cancer.
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Affiliation(s)
- Amorette Barber
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756, USA
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Lotfi R, Lee JJ, Lotze MT. Eosinophilic granulocytes and damage-associated molecular pattern molecules (DAMPs): role in the inflammatory response within tumors. J Immunother 2007; 30:16-28. [PMID: 17198080 DOI: 10.1097/01.cji.0000211324.53396.f6] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The development of a tumor over many years typically leads to reciprocal alternations in the host and the tumor, enabling tumor growth paradoxically in the setting of substantial necrosis and inflammation. When evaluating a tumor, it is important to assess 3 elements: (1) the quantity and quality of tumor-associated leukocytes, (2) their state of activation, and (3) tumor microenvironment. Peripheral blood eosinophilia and tumor-associated tissue eosinophilia are frequently associated with some tumor types and also found after immunotherapy with IL-2, IL-4, granulocyte-macrophage colony-stimulating factor, and antibody to CTLA-4. Within several tumor types including gastrointestinal tumors, tumor-associated tissue eosinophilia is associated with a significantly better prognosis. The converse is true in other tumor types such as differentiated oral squamous cell carcinoma. On the basis of the emergent data, tumor-associated eosinophils have at least 2 dominant nonoverlapping activities: (1) destructive effector functions potentially limiting tumor growth as well as causing recruitment and activation of other leukocytes, (2) immunoregulative and remodeling activities which suppress immune response and promote tumor proliferation. The mechanism by which eosinophils in particular are recruited into tumor tissue is largely unknown. Candidates for causing eosinophil chemotaxis into tumor tissue are the released damage-associated molecular pattern molecules (DAMPs) including the nuclear protein high mobility group box 1. High mobility group box 1 is released upon necrotic cell death and secreted by many cells, particularly during periods of nutrient, hypoxic, or oxidant stress. This overview on eosinophil biology in the context of cancer and necrosis, introduces intriguing and novel strategies targeting eosinophils to enable more effective biologic therapy for cancer patients.
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Affiliation(s)
- Ramin Lotfi
- University of Pittsburgh, Hillmann Cancer Center, 5117 Centre Avenue, Pittsburgh, PA 15213, USA
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42
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Ralainirina N, Poli A, Michel T, Poos L, Andrès E, Hentges F, Zimmer J. Control of NK cell functions by CD4+CD25+ regulatory T cells. J Leukoc Biol 2006; 81:144-53. [PMID: 16959895 DOI: 10.1189/jlb.0606409] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Regulatory T cells (Treg) are key players in the maintenance of peripheral tolerance. As a result of suppressive effects on CD4+ and CD8+ effector T cells, Treg control the adaptive immune system and prevent autoimmunity. In addition, they inhibit B lymphocytes, dendritic cells, and monocytes/macrophages. It is interesting that several recent papers show that CD4+CD25+ Treg are also able to inhibit NK cells. Thus, Treg exert their control on immune responses from the onset (triggering of innate immune cells) to the effector phase of adaptive immunity (B and T cell-mediated responses). That Treg inhibit NK cells suggests that their uncontrolled activation might break self-tolerance and induce "innate" autoimmune pathology. Conversely, Treg-mediated suppression of NK cell functions might have negative effects, as these cells are important in defense against infections and cancer. It is conceivable that Treg might dampen efficient activation of NK cells in these diseases.
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Affiliation(s)
- Natacha Ralainirina
- Laboratoire d'Immunogénétique-Allergologie, Centre de Recherche Public de la Santé (CRP-Santé), 84 Val Fleuri, L-1526 Luxembourg-City, Luxembourg, and Service de Médecine Interne, clinique Médicale B, Hôpitaux Universitaires de Strasbourg, France
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Sutherland CL, Rabinovich B, Chalupny NJ, Brawand P, Miller R, Cosman D. ULBPs, human ligands of the NKG2D receptor, stimulate tumor immunity with enhancement by IL-15. Blood 2006; 108:1313-9. [PMID: 16621962 DOI: 10.1182/blood-2005-11-011320] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Abstract
ULBPs are human ligands for NKG2D, an activating receptor expressed on natural killer (NK) cells, NK1.1+ T cells, and T cells. ULBPs are expressed by a variety of leukemias, carcinomas, melanomas, and tumor cell lines. ULBP expression correlates with improved survival in cancer patients, however, the nature of the immune response that ULBPs elicit is not well understood. We report that ectopic expression of ULBP1 or ULBP2 on murine EL4 or RMA tumor cells elicits potent antitumor responses in syngeneic C57BL/6 and SCID mice. Although binding of ULBP3 to murine NKG2D could not be demonstrated in vitro, ULBP3 can also stimulate antitumor responses, suggesting that ULBP3 binds to murine NKG2D or possibly another receptor in vivo. ULBP expression was found to recruit NK cells, NK1.1+ T cells, and T cells to the tumor. IL-15 was found to strongly enhance the immune response directed against ULBP-expressing tumors. Tumors can evade NKG2D immunity by down-regulating expression of NKG2D. Our data suggest that IL-15 may be useful for overcoming this tumor-evasion strategy. Together, these results demonstrate that ULBP expression can elicit a potent immune response and suggest that ULBPs, alone or in combination with IL-15, can be exploited for antitumor therapy.
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Zhang T, Barber A, Sentman CL. Generation of antitumor responses by genetic modification of primary human T cells with a chimeric NKG2D receptor. Cancer Res 2006; 66:5927-33. [PMID: 16740733 DOI: 10.1158/0008-5472.can-06-0130] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To create more effective T cells against human tumors, we have designed a strategy to allow T cells to recognize tumor cells using natural killer (NK) cell receptors but retain the effector responses of T lymphocytes. NKG2D is an activating cell surface receptor expressed on NK cells and on some T-cell subsets. Its ligands are primarily expressed on tumor cells. We have shown that by linking mouse NKG2D to the CD3zeta chain, it was possible to generate a chimeric NKG2D (chNKG2D) receptor that allowed activation of murine T cells on engagement with NKG2D ligand-positive tumor cells leading to antitumor responses in mice. In this study, a human version of the chNKG2D receptor was expressed on primary human T cells, and antitumor responses were determined. Human peripheral blood mononuclear cell-derived T cells were retrovirally transduced with a human chNKG2D receptor gene. These chNKG2D-bearing human T cells responded to NKG2D ligand-positive tumor cells by producing T-helper 1 cytokines, proinflammatory chemokines, and significant cellular cytotoxicity. This response could be blocked by anti-NKG2D antibodies, and it was dependent on NKG2D ligand expression on the target cells but not on expression of MHC molecules. In addition, the activity of chNKG2D-bearing T cells remained unimpaired after exposure to a soluble NKG2D ligand, soluble MICA, at concentrations as high as 1.5 mug/mL. These data indicate the feasibility of using chNKG2D receptors in primary human T cells and suggest that this approach may be a promising means for cancer immunotherapy.
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Affiliation(s)
- Tong Zhang
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire, USA
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Upshaw JL, Leibson PJ. NKG2D-mediated activation of cytotoxic lymphocytes: unique signaling pathways and distinct functional outcomes. Semin Immunol 2006; 18:167-75. [PMID: 16723257 DOI: 10.1016/j.smim.2006.03.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
NKG2D is an important immunosurveillance receptor that triggers a unique signal transduction pathway resulting in a variety of functional outcomes. NKG2D couples to the non-ITAM-containing DAP10 and initiates at least two signaling branches that are both required for cytotoxicity. Transformed, infected, or healthy cells can express NKG2D ligands, and NKG2D(+) lymphocytes can be unaffected, costimulated, or fully activated by the NKG2D-ligand interaction. The NKG2D-mediated response can be modulated by factors such as cytokine milieu and possibly the particular ligand expressed. Thus, this nontraditional NKG2D-DAP10 initiated signal pathway enables lymphocytes to differentially respond to ligands based on the cellular environment.
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Affiliation(s)
- Jadee L Upshaw
- Department of Immunology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA.
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Abstract
Natural killer (NK) cells were identified 30 years ago based on their ability to "spontaneously" kill tumor cells. The basis for NK cell recognition and activation is due to a variety of receptors that bind to specific ligands on tumor cells and normal cells. Some of these receptors have the ability to inhibit NK cell function, and other receptors activate NK cell function. Therapeutic strategies for cancer therapy are being developed based on preventing NK cell inhibition or using NK cell receptors to activate NK cells or T cells. There are intriguing clinical data from studies of bone marrow transplantation that support the idea that preventing NK cell inhibition by human leukocyte antigen (HLA) class I molecules can be a means to promote graft-versus-leukemia (GvL) effects and limit graft-versus-host disease (GvHD) in acute myeloid leukemia (AML) and chronic myeloid leukemia (CML) patients. Experimental findings also support the blockade of NK cell inhibitory receptors as a way to protect against leukemia relapse. It may be possible to use our knowledge of NK cell activating receptors and their ligands to immunize patients with modified tumor cells to promote beneficial NK cell responses and development of host antitumor cytotoxic T lymphocytes (CTLs). Finally, new data support the idea of using modified NK cell receptors as a means to target patients' T cells against their own tumor cells and induce long-term immunity against them. Tumors are essentially tissues that have overcome normal regulation mechanisms, and therefore the ability to distinguish normal cells from abnormal cells is a key part of selectively attacking tumor cells. NK cells have various receptor systems designed to recognize infected and abnormal cells. Understanding NK cell receptors and their recognition mechanisms provides new tools for the development of immunotherapies against cancer.
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Affiliation(s)
- Charles L Sentman
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, New Hampshire 03756, USA
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Karimi M, Cao TM, Baker JA, Verneris MR, Soares L, Negrin RS. Silencing Human NKG2D, DAP10, and DAP12 Reduces Cytotoxicity of Activated CD8+T Cells and NK Cells. THE JOURNAL OF IMMUNOLOGY 2005; 175:7819-28. [PMID: 16339517 DOI: 10.4049/jimmunol.175.12.7819] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Human CD8+ T cells activated and expanded by TCR cross-linking and high-dose IL-2 acquire potent cytolytic ability against tumors and are a promising approach for immunotherapy of malignant diseases. We have recently reported that in vitro killing by these activated cells, which share phenotypic and functional characteristics with NK cells, is mediated principally by NKG2D. NKG2D is a surface receptor that is expressed by all NK cells and transmits an activating signal via the DAP10 adaptor molecule. Using stable RNA interference induced by lentiviral transduction, we show that NKG2D is required for cytolysis of tumor cells, including autologous tumor cells from patients with ovarian cancer. We also demonstrated that NKG2D is required for in vivo antitumor activity. Furthermore, both activated and expanded CD8+ T cells and NK cells use DAP10. In addition, direct killing was partially dependent on the DAP12 signaling pathway. This requirement by activated and expanded CD8+ T cells for DAP12, and hence stimulus from a putative DAP12-partnered activating surface receptor, persisted when assayed by anti-NKG2D Ab-mediated redirected cytolysis. These studies demonstrated the importance of NKG2D, DAP10, and DAP12 in human effector cell function.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Animals
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/transplantation
- Cell Line, Tumor
- Cytotoxicity, Immunologic/genetics
- Female
- Humans
- Immunotherapy, Adoptive
- Killer Cells, Natural/immunology
- Male
- Membrane Proteins/genetics
- Mice
- Mice, SCID
- NK Cell Lectin-Like Receptor Subfamily K
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- RNA Interference
- RNA, Small Interfering/genetics
- RNA, Small Interfering/pharmacology
- Receptors, Immunologic/genetics
- Receptors, Natural Killer Cell
- Transduction, Genetic
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Affiliation(s)
- Mobin Karimi
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, CA 94305, USA
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Rincon-Orozco B, Kunzmann V, Wrobel P, Kabelitz D, Steinle A, Herrmann T. Activation of V gamma 9V delta 2 T cells by NKG2D. THE JOURNAL OF IMMUNOLOGY 2005; 175:2144-51. [PMID: 16081780 DOI: 10.4049/jimmunol.175.4.2144] [Citation(s) in RCA: 242] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Human Vgamma9 Vdelta2 T cells recognize phosphorylated nonpeptide Ags (so called phosphoantigens), certain tumor cells, and cells treated with aminobisphosphonates. NKG2D, an activating receptor for NK cells, has been described as a potent costimulatory receptor in the Ag-specific activation of gammadelta and CD8 T cells. This study provides evidence that Vgamma9 Vdelta2 T cells may also be directly activated by NKG2D. Culture of PBMC with immobilized NKG2D-specific mAb or NKG2D ligand MHC class I related protein A (MICA) induces the up-regulation of CD69 and CD25 in NK and Vgamma9 Vdelta2 but not in CD8 T cells. Furthermore, NKG2D triggers the production of TNF-alpha but not of IFN-gamma, as well as the release of cytolytic granules by Vgamma9 Vdelta2 T cells. Purified Vgamma9 Vdelta2 T cells kill MICA-transfected RMA mouse cells but not control cells. Finally, DAP10, which mediates NKG2D signaling in human NK cells, was detected in resting and activated Vgamma9 Vdelta2 T cells. These remarkable similarities in NKG2D function in NK and Vgamma9 Vdelta2 T cells may open new perspectives for Vgamma9 Vdelta2 T cell-based immunotherapy, e.g., by Ag-independent killing of NKG2D ligand-expressing tumors.
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MESH Headings
- Animals
- Antibodies, Monoclonal/metabolism
- Biomarkers/blood
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cell Line
- Cell Line, Tumor
- Cells, Cultured
- Cytokines/biosynthesis
- Cytoplasmic Granules/metabolism
- Cytotoxicity Tests, Immunologic
- Histocompatibility Antigens Class I/physiology
- Humans
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Ligands
- Lymphocyte Activation/immunology
- Membrane Proteins/biosynthesis
- Mice
- NK Cell Lectin-Like Receptor Subfamily K
- Receptors, Antigen, T-Cell, gamma-delta/biosynthesis
- Receptors, Antigen, T-Cell, gamma-delta/blood
- Receptors, Immunologic/biosynthesis
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- Receptors, Immunologic/physiology
- Receptors, Natural Killer Cell
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
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Affiliation(s)
- Bladimiro Rincon-Orozco
- Institut für Virologie und Immunobiologie, Julius-Maximilians Universität, Würzburg, Germany
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Coukos G, Conejo-Garcia JR, Roden RBS, Wu TC. Immunotherapy for gynaecological malignancies. Expert Opin Biol Ther 2005; 5:1193-210. [PMID: 16120050 DOI: 10.1517/14712598.5.9.1193] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Gynaecological malignancies, excluding breast cancer, cause approximately 25,000 deaths yearly among women in the US. Therefore, novel approaches for the prevention or treatment of these diseases are urgently required. In the case of cervical cancer, human papillomavirus (HPV) xenoantigens are readily recognised by the immune system, and their targeting has shown great promise in preclinical models of therapeutic vaccination and in clinical studies of preventative vaccination. A growing body of evidence indicates that ovarian cancer is also immunogenic and can thus be targeted through immunotherapy. This review outlines the principles and problems of immunotherapy for cervical and ovarian cancer, including the authors' personal assessment.
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MESH Headings
- Adoptive Transfer
- Animals
- Antigens, Heterophile/immunology
- Antigens, Neoplasm/immunology
- Cancer Vaccines/therapeutic use
- Clinical Trials as Topic
- Cytokines
- Drug Evaluation, Preclinical
- Female
- Genital Neoplasms, Female/immunology
- Genital Neoplasms, Female/prevention & control
- Genital Neoplasms, Female/therapy
- Humans
- Immunotherapy/methods
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/transplantation
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/prevention & control
- Ovarian Neoplasms/therapy
- Papillomaviridae/immunology
- T-Lymphocytes, Regulatory
- Uterine Cervical Neoplasms/immunology
- Uterine Cervical Neoplasms/prevention & control
- Uterine Cervical Neoplasms/therapy
- Vaccines, Attenuated/therapeutic use
- Viral Vaccines/therapeutic use
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Affiliation(s)
- George Coukos
- Abramson Cancer Research Institute, Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA 19104, USA
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Clayton A, Tabi Z. Exosomes and the MICA-NKG2D system in cancer. Blood Cells Mol Dis 2005; 34:206-13. [PMID: 15885603 DOI: 10.1016/j.bcmd.2005.03.003] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2005] [Revised: 03/15/2005] [Accepted: 03/15/2005] [Indexed: 11/20/2022]
Abstract
Exosomes are nanometer sized vesicles, secreted by a diverse range of cell types, whose biological functions remain ambiguous. Several groups have demonstrated the potential of manipulating exosomes for activating cellular immune responses. The possibility that exosomes may inhibit immunological responses, however, has not been widely addressed. We have investigated if exosomes produced by tumor cells can inhibit immunological functions, through modulating expression of the NKG2D receptor by effector cells. Incubating tumor exosomes with fresh peripheral blood leukocytes resulted in a marked reduction in the proportion of NKG2D-positive CD3+CD8+ Cells, and CD3- cells by 48 h. This effect was dose dependent and was shown with exosomes from different tumor cells including breast cancer and mesothelioma. Analysis of tumor exosome-phenotype revealed positive expression of several NKG2D ligands, and antibody blocking experiments revealed the importance of such ligands in driving the reduction in the proportion of NKG2D-positive effector cells. The functional importance of the decrease in NKG2D-positive cells was addressed in vitro cytotoxicity assays. For example a CD8+ T cell line pre-incubated with tumor exosomes had significant decreased capacity to kill peptide-pulsed T2 target cells. These data highlight a role for tumor exosomes bearing NKG2D ligands as a mechanism contributing to cancer immune evasion.
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Affiliation(s)
- Aled Clayton
- Department of Clinical Oncology and Palliative Medicine, Wales College of Medicine, Cardiff University, Velindre Cancer Centre, Whitchurch, Cardiff CF14 2TL, UK.
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