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Wang Q, Liu W, Zhou H, Lai W, Hu C, Dai Y, Li G, Zhang R, Zhao Y. Tozasertib activates anti-tumor immunity through decreasing regulatory T cells in melanoma. Neoplasia 2024; 48:100966. [PMID: 38237304 PMCID: PMC10828585 DOI: 10.1016/j.neo.2024.100966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 02/03/2024]
Abstract
Although immune checkpoint therapy has significantly improved the prognosis of patients with melanoma, urgent attention still needs to be paid to the low patient response rates and the challenges of precisely identifying patients before treatment. Therefore, it is crucial to investigate novel immunosuppressive mechanisms and targets in the tumor microenvironment in order to reverse tumor immune escape. In this study, we found that the cell cycle checkpoint Aurora kinase B (AURKB) suppressed the anti-tumor immune response, and its inhibitor, Tozasertib, effectively activated T lymphocyte cytokine release in vitro and anti-tumor immunity in vivo. Tozasertib significantly inhibited melanoma xenograft tumor growth by decreasing the number of inhibitory CD4+ Treg cells in the tumors, which, in turn, activated CD8+ T cells. Single-cell analysis revealed that AURKB suppressed anti-tumor immunity by increasing MIF-CD74/CXCR4 signaling between tumor cells and lymphocytes. Our study suggests that AURKB is a newly identified anti-tumor immunity suppressor, whose inhibitors may be developed as novel anti-tumor immunity drugs and may have synergistic anti-melanoma effects with immune checkpoint therapies.
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Affiliation(s)
- Qiaoling Wang
- Department of Pharmacy, University Town Hospital Affiliated of Chongqing Medical University, Chongqing, China
| | - Wuyi Liu
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Huyue Zhou
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Wenjing Lai
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Changpeng Hu
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Yue Dai
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Guobing Li
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Rong Zhang
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China.
| | - Yu Zhao
- Department of Pharmacy, University Town Hospital Affiliated of Chongqing Medical University, Chongqing, China.
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Gerber HP, Presta LG. TCR mimic compounds for pHLA targeting with high potency modalities in oncology. Front Oncol 2022; 12:1027548. [PMID: 36338746 PMCID: PMC9635445 DOI: 10.3389/fonc.2022.1027548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/29/2022] [Indexed: 12/02/2022] Open
Abstract
pHLA complexes represent the largest class of cell surface markers on cancer cells, making them attractive for targeted cancer therapies. Adoptive cell therapies expressing TCRs that recognize tumor specific pHLAs take advantage of the unique selectivity and avidity of TCR: pHLA interactions. More recently, additional protein binding domains binding to pHLAs, known as TCR mimics (TCRm), were developed for tumor targeting of high potency therapeutic modalities, including bispecifics, ADCs, CAR T and -NK cells. TCRm compounds take advantage of the exquisite tumor specificity of certain pHLA targets, including cell lineage commitment markers and cancer testis antigens (CTAs). To achieve meaningful anti-tumor responses, it is critical that TCRm compounds integrate both, high target binding affinities and a high degree of target specificity. In this review, we describe the most advanced approaches to achieve both criteria, including affinity- and specificity engineering of TCRs, antibodies and alternative protein scaffolds. We also discuss the status of current TCRm based therapeutics developed in the clinic, key challenges, and emerging trends to improve treatment options for cancer patients treated with TCRm based therapeutics in Oncology.
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Kalaora S, Nagler A, Wargo JA, Samuels Y. Mechanisms of immune activation and regulation: lessons from melanoma. Nat Rev Cancer 2022; 22:195-207. [PMID: 35105962 DOI: 10.1038/s41568-022-00442-9] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/04/2022] [Indexed: 12/14/2022]
Abstract
Melanoma, a skin cancer that develops from pigment cells, has been studied intensively, particularly in terms of the immune response to tumours, and has been used as a model for the development of immunotherapy. This is due, in part, to the high mutational burden observed in melanomas, which increases both their immunogenicity and the infiltration of immune cells into the tumours, compared with other types of cancers. The immune response to melanomas involves a complex set of components and interactions. As the tumour evolves, it accumulates an increasing number of genetic and epigenetic alterations, some of which contribute to the immunogenicity of the tumour cells and the infiltration of immune cells. However, tumour evolution also enables the development of resistance mechanisms, which, in turn, lead to tumour immune escape. Understanding the interactions between melanoma tumour cells and the immune system, and the evolving changes within the melanoma tumour cells, the immune system and the microenvironment, is essential for the development of new cancer therapies. However, current research suggests that other extrinsic factors, such as the microbiome, may play a role in the immune response to melanomas. Here, we review the mechanisms underlying the immune response in the tumour and discuss recent advances as well as strategies for treatment development.
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Affiliation(s)
- Shelly Kalaora
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Adi Nagler
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Jennifer A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yardena Samuels
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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Towards new horizons: characterization, classification and implications of the tumour antigenic repertoire. Nat Rev Clin Oncol 2020; 17:595-610. [PMID: 32572208 PMCID: PMC7306938 DOI: 10.1038/s41571-020-0387-x] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2020] [Indexed: 12/21/2022]
Abstract
Immune-checkpoint inhibition provides an unmatched level of durable clinical efficacy in various malignancies. Such therapies promote the activation of antigen-specific T cells, although the precise targets of these T cells remain unknown. Exploiting these targets holds great potential to amplify responses to treatment, such as by combining immune-checkpoint inhibition with therapeutic vaccination or other antigen-directed treatments. In this scenario, the pivotal hurdle remains the definition of valid HLA-restricted tumour antigens, which requires several levels of evidence before targets can be established with sufficient confidence. Suitable antigens might include tumour-specific antigens with alternative or wild-type sequences, tumour-associated antigens and cryptic antigens that exceed exome boundaries. Comprehensive antigen classification is required to enable future clinical development and the definition of innovative treatment strategies. Furthermore, clinical development remains challenging with regard to drug manufacturing and regulation, as well as treatment feasibility. Despite these challenges, treatments based on diligently curated antigens combined with a suitable therapeutic platform have the potential to enable optimal antitumour efficacy in patients, either as monotherapies or in combination with other established immunotherapies. In this Review, we summarize the current state-of-the-art approaches for the identification of candidate tumour antigens and provide a structured terminology based on their underlying characteristics. Immune-checkpoint inhibition has transformed the treatment of patients with advanced-stage cancers. Nonetheless, the specific antigens targeted by T cells that are activated or reactivated by these agents remain largely unknown. In this Review, the authors describe the characterization and classification of tumour antigens including descriptions of the most appropriate detection methods, and discuss potential regulatory issues regarding the use of tumour antigen-based therapeutics. Immune-checkpoint inhibition has profoundly changed the paradigm for the care of several malignancies. Although these therapies activate antigen-specific T cells, the precise mechanisms of action and their specific targets remain largely unknown. Anticancer immunotherapies encompass two fundamentally different therapeutic principles based on knowledge of their therapeutic targets, that either have been characterized (antigen-aware) or have remained elusive (antigen-unaware). HLA-presented tumour antigens of potential therapeutic relevance can comprise alternative or wild-type amino acid sequences and can be subdivided into different categories based on their mechanisms of formation. The available methods for the detection of HLA-presented antigens come with intrinsic challenges and limitations and, therefore, warrant multiple lines of evidence of robust tumour specificity before being considered for clinical use. Knowledge obtained using various antigen-detection strategies can be combined with different therapeutic platforms to create individualized therapies that hold great promise, including when combined with already established immunotherapies. Tailoring immunotherapies while taking into account the substantial heterogeneity of malignancies as well as that of HLA loci not only requires innovative science, but also demands innovative approaches to trial design and drug regulation.
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The mouse Mageb18 gene encodes a ubiquitously expressed type I MAGE protein and regulates cell proliferation and apoptosis in melanoma B16-F0 cells. Biochem J 2012; 443:779-88. [DOI: 10.1042/bj20112054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Although many cancer vaccines have been developed against type I MAGE (melanoma antigen) genes owing to their shared tumour-specific expression properties, studies about their expression and functions are relatively limited. In the present study, we first identify a non-testis-specific type I MAGE gene, Mageb18 (melanoma antigen family B 18). Mouse Mageb18 is also expressed in digestion- and immune-related tissues as well as testis, and its expression in testis is age-dependent. Mageb18 is expressed in many mouse-derived cell lines, and DNA demethylation and histone acetylation mediate the reactivation of Mageb18 in Mageb18-negtive H22 and C6 cells. We also show that mouse Mageb18 encodes a 46 kDa protein which is predominantly localized in the cytoplasm. In testis, the endogenous MAGEB18 protein is mainly expressed in proliferative spermatogonia and primary and secondary spermatocytes, but less so in spermatids. Finally, we demonstrate that knockdown of MAGEB18 inhibits the growth of B16-F0 cells and induces apoptosis, which correlates with increased levels of TP53 (tumour protein 53), p21, Bax and caspase 3. The results of the present study thus uncover an important phenomenon that the expression of certain type I MAGE genes, at least for Mageb18, is non-testis-specific. Although they can regulate various malignant phenotypes of cancer cells, it is necessary to study further their expression pattern in normal tissues before using them to develop more effective and safer cancer vaccines.
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6
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Liu W, Zhai M, Wu Z, Qi Y, Wu Y, Dai C, Sun M, Li L, Gao Y. Identification of a novel HLA-A2-restricted cytotoxic T lymphocyte epitope from cancer-testis antigen PLAC1 in breast cancer. Amino Acids 2011; 42:2257-65. [PMID: 21710262 DOI: 10.1007/s00726-011-0966-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 06/14/2011] [Indexed: 01/01/2023]
Abstract
Identification of cytotoxic T lymphocyte (CTL) epitopes from tumor antigens is essential for the development of peptide vaccines against tumor immunotherapy. Among all the tumor antigens, the caner-testis (CT) antigens are the most widely studied and promising targets. PLAC1 (placenta-specific 1, CT92) was considered as a novel member of caner-testis antigen, which expressed in a wide range of human malignancies, most frequently in breast cancer. In this study, three native peptides and their analogues derived from PLAC1 were predicted by T cell epitope prediction programs including SYFPEITHI, BIMAS and NetCTL 1.2. Binding affinity and stability assays in T2 cells showed that two native peptides, p28 and p31, and their analogues (p28-1Y9 V, p31-1Y2L) had more potent binding activity towards HLA-A*0201 molecule. In ELISPOT assay, the CTLs induced by these four peptides could release IFN-γ. The CTLs induced by these four peptides from the peripheral blood mononuclear cells (PBMCs) of HLA-A*02+ healthy donor could lyse MCF-7 breast cancer cells (HLA-A*0201+, PLAC1+) in vitro. When immunized in HLA-A2.1/Kb transgenic mice, the peptide p28 could induce the most potent peptide-specific CTLs among these peptides. Therefore, our results indicated that the peptide p28 (VLCSIDWFM) could serve as a novel candidate epitope for the development of peptide vaccines against PLAC1-positive breast cancer.
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Affiliation(s)
- Wei Liu
- Department of Bioengineering, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, China
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7
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Han JF, Zhao TT, Liu HL, Lin ZH, Wang HM, Ruan ZH, Zou LY, Wu YZ. Identification of a new HLA-A*0201-restricted cytotoxic T lymphocyte epitope from CML28. Cancer Immunol Immunother 2006; 55:1575-83. [PMID: 16534571 PMCID: PMC11031099 DOI: 10.1007/s00262-006-0152-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2006] [Accepted: 02/27/2006] [Indexed: 02/07/2023]
Abstract
Identification of cytotoxic T lymphocyte (CTL) epitopes from additional tumor antigens is essential for the development of specific immunotherapy of malignant tumors. CML28, a recently discovered cancer-testis (CT) antigen from chronic myelogenous leukemia, is considered to be a promising target of tumor-specific immunotherapy. Because HLA-A*0201 is one of the most common histocompatibility molecule in Chinese, we aim at identifying CML28 peptides presented by HLA-A*0201. A panel of CML28-derived antigenic peptides was predicted using a computer-based program. Four peptides with highest predicted score were synthesized and tested for their binding affinities to HLA-A*0201 molecule. Then these peptides were assessed for their immunogenicity to elicit specific immune responses mediated by CTLs both in vitro, from PBMCs sourced from four healthy HLA-A*0201(+) donors, and in vivo, in HLA-A*0201 transgenic mice. One of the tested peptides, CML28((173-181)), induced peptide-specific CTLs in vitro as well as in vivo, which could specifically secrete IFN-gamma and lyse major histocompatibility complex (MHC)-matched tumor cell lines endogenously expressing CML28 antigen and CML28((173-181) )pulsed Jurkat-A2/Kb cells, respectively. These results demonstrate that CML28((173-181) )is a naturally processed and presented CTL epitope with HLA-A*0201 motif and has a promising immunogenicity both in vitro and in vivo. As CML28 is expressed in a large variety of histological tumors besides chronic myelogenous leukemia, we propose that the newly identified epitope, CML28((173-181)), would be of potential use in peptide-based, cancer-specific immunotherapy against a broad spectrum of tumors.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antigen Presentation/immunology
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/pharmacology
- Antigens, Surface/genetics
- Antigens, Surface/immunology
- Antigens, Surface/pharmacology
- COS Cells
- Cell Line, Tumor
- Chlorocebus aethiops
- Epitopes, T-Lymphocyte/immunology
- Exoribonucleases/genetics
- Exoribonucleases/immunology
- Exoribonucleases/pharmacology
- Exosome Multienzyme Ribonuclease Complex
- HLA-A Antigens/metabolism
- HLA-A2 Antigen
- Humans
- Mice
- Mice, Transgenic
- Molecular Sequence Data
- Neoplasms/immunology
- Peptides/genetics
- Peptides/immunology
- Peptides/pharmacology
- RNA-Binding Proteins
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- Jun-Feng Han
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Ting-Ting Zhao
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Hong-Li Liu
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Zhi-Hua Lin
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Hui-Ming Wang
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Zhi-Hua Ruan
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Li-Yun Zou
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
| | - Yu-Zhang Wu
- Institute of Immunology, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, 400038 Chongqing, China
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Kaneko H, Hori T, Yanagita S, Kadowaki N, Uchiyama T. Introduction of OX40 ligand into lymphoma cells elicits anti-lymphoma immunity in vivo. Exp Hematol 2005; 33:336-43. [PMID: 15730857 DOI: 10.1016/j.exphem.2004.11.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2004] [Revised: 10/14/2004] [Accepted: 11/21/2004] [Indexed: 11/15/2022]
Abstract
OBJECTIVE OX40, a member of the TNF receptor superfamily, and its ligand (OX40L) play crucial roles in induction and maintenance of integrated T cell immune response. Engagement of OX40L delivers a costimulatory signal to T cells. In this study, we investigated whether inoculation of OX40L-transfected EL4, a murine T cell lymphoma cell line, could induce anti-lymphoma immunity in mice. MATERIALS AND METHODS Female C57BL/6 mice were inoculated with 1 x 10(5) cells of parental EL4, OX40L-transfected EL4 (EL4-OX40L), or mock control vector-transfected EL4 (EL4-mock), and then the tumor size, overall survival, CTL activity of spleen cells, and the immunohistochemistry were compared. RESULTS While both parental EL4 and EL4-mock grew rapidly, EL4-OX40L was rejected or grew slower than parental EL4 or EL4-mock. Pretreatment of mice with either anti-CD4 or anti-CD8 mAb accelerated the growth of EL4-OX40L, suggesting that both CD4+ and CD8+ T cells were involved in anti-lymphoma immunity. The immunohistochemical study revealed the infiltration of CD8+ T cells into the tumor of EL4-OX40L. In vitro CTL assay demonstrated that spleen cells of mice that had rejected EL4-OX40L had significant cytotoxic activity against parental EL4. CONCLUSION The gene transfer of OX40L into lymphoma cells is an eligible and efficient modality to induce anti-lymphoma immunity.
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Affiliation(s)
- Hitomi Kaneko
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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9
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Gajjar NA, Cochran AJ, Binder SW. Is MAGE-1 expression in metastatic malignant melanomas really helpful? Am J Surg Pathol 2004; 28:883-8. [PMID: 15223957 DOI: 10.1097/00000478-200407000-00006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Melanoma antigen-encoding gene (MAGE-1) has been introduced as a sensitive immunohistochemical marker to aid in the diagnosis of malignant melanomas, in particular, those that are HMB-45 negative. Our goal was to determine the consistency of positive staining in melanomas on the basis of the usefulness of MAGE-1 in comparison with tyrosinase and MART-1. We studied 56 malignant melanomas using immunohistochemical markers to MAGE-1, tyrosinase, MART-1, HMB-45, and S-100. Six of 17 HMB-45-negative cases were strongly positive for MAGE-1 (35%), while 9 of 39 HMB-45-positive cases were positive for MAGE-1 (23%), overall, 27% positivity (n = 56). Tyrosinase and MART-1 were both strongly positive in 42 of 56 cases (75%). Fifty-two of 56 cases were strongly positive for S-100 (93%). We found MAGE-1 to be less sensitive than described in other studies, and overall, not very helpful, especially as a predictor of aggressive behavior. Although MAGE-1 expression has been considered as a target for immunomodulation therapy, our findings do not indicate consistent expression of this epitope in a majority of melanomas. S-100 protein, tyrosinase, and MART-1 immunomarkers were more frequently positive in our melanoma cases and appear to constitute a useful panel of markers to aid in the diagnosis of metastatic malignant melanomas, especially in patients with an unknown primary.
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Affiliation(s)
- Nupoor A Gajjar
- Department of Pathology, David Geffen School of Medicine at the University of California at Los Angeles, Los Angeles, CA 90095, USA.
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Zerbini A, Pilli M, Soliani P, Ziegler S, Pelosi G, Orlandini A, Cavallo C, Uggeri J, Scandroglio R, Crafa P, Spagnoli GC, Ferrari C, Missale G. Ex vivo characterization of tumor-derived melanoma antigen encoding gene-specific CD8+cells in patients with hepatocellular carcinoma. J Hepatol 2004; 40:102-9. [PMID: 14672620 DOI: 10.1016/s0168-8278(03)00484-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND/AIMS Members of the melanoma antigen encoding gene family are expressed in tumors of different histological types but not in normal tissue. For this reason, they are attractive targets for cancer immunotherapy. METHODS In the present study, we analyzed the expression of MAGE-1 and -3 genes in the hepatocellular carcinoma (HCC) tissue as well as frequency, phenotype and function of circulating and tumor infiltrating CD8+ cells specific for HLA-A1 and -A2 restricted epitopes of MAGE-1 and -3. RESULTS Our study shows for the first time the presence of MAGE/tetramer+ CD8 cells in the tumor tissue of patients with HCC. These cells are able to recognize the MAGE-1 sequence 161-169 and the MAGE-3 sequence 271-279. In a patient with a particularly high frequency of MAGE-1 sequence 161-169-specific T cells, phenotypic and functional analysis was performed showing a phenotype of recently-primed CD8 cells (CD28+CD27+CD45RA-CCR7). CONCLUSIONS The observation of a spontaneous in vivo priming of a MAGE-specific T cell response in patients with HCC and the high frequency of MAGE antigens expression in this tumor, makes this antigen a potential candidate for a MAGE-specific immunotherapy in hepatocellular carcinoma.
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Affiliation(s)
- Alessandro Zerbini
- Divisione Malattie Infettive ed Epatologia, Azienda Ospedaliera Universitaria di Parma, Via Gramsci 14, 43100 Parma, Italy
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11
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Yang S, Linette GP, Longerich S, Haluska FG. Antimelanoma activity of CTL generated from peripheral blood mononuclear cells after stimulation with autologous dendritic cells pulsed with melanoma gp100 peptide G209-2M is correlated to TCR avidity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2002; 169:531-9. [PMID: 12077285 DOI: 10.4049/jimmunol.169.1.531] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Anchor residue-modified peptides derived from tumor-associated Ag have demonstrated success in engendering immune responses in clinical studies. However, tumor regression does not always correlate with immune responses. One hypothesis to explain this is that CTL resulting from such immunization approaches are variable in antitumor potency. In the present study, we evaluated this hypothesis by characterizing the activity of tumor-associated Ag-specific CTL. We chose an anchor residue-modified peptide from gp100, G209-2M, and used peptide-pulsed dendritic cells to generate CTL from PBMC of HLA-A2(+) normal donors. The specificities and avidities of the resulting CTL were evaluated. The results demonstrate that CTL generated by G209-2M can be classified into three categories: G209-2M-specific CTL which are cytotoxic only to G209-2M-pulsed targets; peptide-specific CTL which recognize both G209 and G209-2M peptides but not melanomas; and melanoma-reactive CTL which recognize peptide-pulsed targets as well as HLA-A2(+)gp100(+) melanomas. CTL that kill only peptide-pulsed targets require a higher peptide concentration to mediate target lysis, whereas CTL that lyse melanomas need a lower peptide concentration. Increasing peptide density on melanomas by loading exogenous G209 peptide enhances their sensitivity to peptide-specific CTL. High avidity CTL clones also demonstrate potent antimelanoma activity in melanoma model in nude mice. Injection of G209 peptide around transplanted tumors significantly enhances the antitumor activity of low avidity CTL. These results suggest that peptide stimulation causes expansion of T cell populations with a range of avidities. Successful immunotherapy may require selective expansion of the higher-avidity CTL and intratumor injection of the peptide may enhance the effect of peptide vaccines.
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MESH Headings
- Animals
- Cancer Vaccines
- Cytotoxicity Tests, Immunologic/methods
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Dose-Response Relationship, Immunologic
- Epitopes, T-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/pharmacology
- HLA-A2 Antigen/immunology
- Humans
- Immunotherapy, Adoptive
- Injections, Subcutaneous
- Leukocytes, Mononuclear/immunology
- Leukocytes, Mononuclear/metabolism
- Lymphocyte Activation
- Melanoma/immunology
- Melanoma/metabolism
- Melanoma/therapy
- Membrane Glycoproteins/administration & dosage
- Membrane Glycoproteins/pharmacology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Proteins/administration & dosage
- Neoplasm Proteins/pharmacology
- Neoplasm Transplantation
- Peptide Fragments/administration & dosage
- Peptide Fragments/pharmacology
- Peptides
- Protein Binding/immunology
- Receptors, Antigen, T-Cell/metabolism
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- T-Lymphocytes, Cytotoxic/transplantation
- Tumor Cells, Cultured/transplantation
- gp100 Melanoma Antigen
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Affiliation(s)
- Sixun Yang
- Division of Hematology-Oncology, Massachusetts General Hospital, and Department of Medicine, Harvard Medical School, Boston, MA 02114, USA
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12
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Le Poole IC, Riker AI, Quevedo ME, Stennett LS, Wang E, Marincola FM, Kast WM, Robinson JK, Nickoloff BJ. Interferon-gamma reduces melanosomal antigen expression and recognition of melanoma cells by cytotoxic T cells. THE AMERICAN JOURNAL OF PATHOLOGY 2002; 160:521-8. [PMID: 11839572 PMCID: PMC1850638 DOI: 10.1016/s0002-9440(10)64871-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In malignant melanoma, tumor-infiltrating lymphocytes are frequently reactive with melanosomal antigens. Achieving complete remissions by peptide therapy is frequently hampered by metastases evading immune recognition. The tumor microenvironment seems to favor reduced expression of target antigens by melanoma cells. Among candidate factors, interferon-gamma (IFN-gamma) (10(2) to 10(3) U/ml) suppressed expression of antigens MART-1, TRP-1, and gp100 by M14 melanoma cells as shown by immunohistology and fluorescence-activated cell sorting analysis, reducing MART-1 expression by >65%. Northern blot analysis revealed that reduced expression was regulated at the transcriptional level, demonstrating a 79% reduction in MART-1 transcript abundance after 32 hours of IFN-gamma treatment. To evaluate consequences of IFN-gamma exposure for immune recognition, MART-1-responsive T cells were reacted with pretreated HLA-matched melanoma cells. Cytotoxicity was reduced up to 78% by IFN-gamma pretreatment, and was restored by addition of MART-1 peptide AAGIGILTV for 2 hours. Examination of melanoma lesions by quantitative reverse transcriptase-polymerase chain reaction revealed up to 188-fold more abundant IFN-gamma transcripts when compared to control skin. Laser capture microdissection and immunohistology localized most IFN-gamma-producing T cells to the tumor stroma. Reduced MART-1 expression was frequently observed in adjacent tumor cells. Consequently, IFN-gamma may enhance inflammatory responses yet hamper effective recognition of melanoma cells.
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Affiliation(s)
- I Caroline Le Poole
- Department of Pathology, Skin Oncology Research Program, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Bldg. 112, Rm. 303, 2160 S. 1st Ave., Maywood, IL 60153, USA.
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13
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Pecher G, Harnack U, Günther M, Hummel M, Fichtner I, Schenk JA. Generation of an Immortalized Human CD4+ T Cell Clone Inhibiting Tumor Growth in Mice. Biochem Biophys Res Commun 2001; 283:738-42. [PMID: 11350045 DOI: 10.1006/bbrc.2001.4846] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tumor antigen-specific T cell clones represent a useful tool in tumor immunology; however, their long-term culture is limited. To generate an immortalized cytotoxic T cell clone against the human tumor antigen mucin, we exposed a previously generated T cell culture to Herpesvirus saimiri. We obtained an immortalized human CD4+ T cell clone, termed SITAM. Clonality of these cells was shown by analysis of the alpha/beta-T cell receptor (TCR) repertoire. Cytolytic activity was demonstrated against several mucin-expressing tumor cell lines and could not be detected against non-mucin-expressing cells. SITAM cells maintained their features stably for 2 years. Furthermore, growth of the tumor cell line Capan-2 in NOD/SCID mice was inhibited when SITAM cells were coinjected subcutaneously with tumor cells. SITAM cells provide an unlimited source of clonal T cells for analysis of tumor recognition and may be of help in TCR-targeted immunotherapy.
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Affiliation(s)
- G Pecher
- AG Molecular Gene- and Immunotherapy, Humboldt-University Berlin, Charité Campus Mitte, Hessische Strasse 3-4, Berlin, 10115, Germany.
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14
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Robinson C, Callow M, Stevenson S, Scott B, Robinson BW, Lake RA. Serologic responses in patients with malignant mesothelioma: evidence for both public and private specificities. Am J Respir Cell Mol Biol 2000; 22:550-6. [PMID: 10783126 DOI: 10.1165/ajrcmb.22.5.3930] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Malignant mesothelioma (MM) is a pulmonary malignancy that appears to be immunogenic based on a large number of studies in both animals and humans. This notion is supported by our recent demonstration using Western blot analysis of immunoglobulin G antibodies reactive with a variety of autoantigens in many patients with MM. In view of the enormous potential of such antigens in early diagnosis, immunotherapy, and vaccination of at-risk individuals, it was essential to identify these antigens. We therefore applied the SEREX technique (serologic identification by recombinant expression cloning), using a serum pool from six patients as the probe against an expressed complementary DNA library derived from a cloned MM cell line. We screened over one million recombinants and obtained sequence information on eight antigens that had provoked immunoglobulin heavy chain class switching, presumably as a consequence of T-cell recognition. Six of these antigens were identifiable (U2AF[65], Siah binding protein, topoisomerase IIbeta, ZFM1, mIre1, and pendulin), and of the others, one was found as a single EST from a myotube library (Jemm-1); the other (Jemm-2) was not represented in any EST database even as a weak homolog. Consistent with our previous findings, each of the characterizable antigens would be expected to be associated with the cell nucleus. Each of the autoantibody specificities was uniquely associated with a single patient with the exception of antibodies to TOPIIbeta and U2AF(65). We found 13 of 14 (93%) patients with MM had antibodies to TOPIIbeta and two of 14 (14%) patients had antibodies to U2AF(65). The number of serum reactivities, taken as a measure of the complexity of the immune response, correlates with patient survival and with an index of systemic inflammation. These data suggest that a broader range of serologic reactivities reflects a more active host response to the presence of tumor.
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Affiliation(s)
- C Robinson
- University Department of Medicine, Western Australian Institute for Medical Research, Queen Elizabeth II Medical Centre, Perth, Western Australia, Australia
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15
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Panelli MC, Bettinotti MP, Lally K, Ohnmacht GA, Li Y, Robbins P, Riker A, Rosenberg SA, Marincola FM. A tumor-infiltrating lymphocyte from a melanoma metastasis with decreased expression of melanoma differentiation antigens recognizes MAGE-12. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2000; 164:4382-92. [PMID: 10754339 DOI: 10.4049/jimmunol.164.8.4382] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Twenty separate tumor infiltrating lymphocyte (TIL) bulk cultures and a tumor cell line were originated simultaneously from a fine needle aspiration biopsy of a metastasis in a patient with melanoma (F001) previously immunized with the HLA-A*0201-associated gp100:209-217(210 M) peptide. None of the TIL recognized gp100. However, 12 recognized autologous (F001-MEL) and allogeneic melanoma cells expressing the HLA haplotype A*0201, B*0702, Cw*0702. Further characterization of F001-MEL demonstrated loss of gp100/PMel17, severely decreased expression of other melanoma differentiation Ags and retained expression of tumor-specific Ags. Transfection of HLA class I alleles into B*0702/Cw*0702-negative melanoma cell lines identified HLA-Cw*0702 as the restriction element for F001-TIL. A cDNA library from F001-MEL was used to transfect IFN-alpha-stimulated 293 human embryonal kidney (293-HEK) cells expressing HLA-Cw*0702. A 100-gene pool was identified that induced recognition of 293-HEK cells by F001-TIL. Subsequent cloning of the pool identified a cDNA sequence homologous, except for one amino acid (aa 187 D-->A), to MAGE-12. Among 25 peptide sequences from MAGE-12 with the HLA-Cw*0702 binding motif, MAGE-12:170-178 (VRIGHLYIL) induced IFN-gamma release by F001-TIL when pulsed on F001-EBV-B cells at concentrations as low as 10 pg/ml. Peptide sequences from MAGE-1, 2, 3, 4a, and 6 aligned to MAGE-12:170-178 were not recognized by F001-TIL. In summary a TIL recognizing a MAGE protein was developed from an HLA-A*0201 expressing tumor with strongly reduced expression of melanoma differentiation Ags. Persisting tumor-specific Ag expression maintained tumor immune competence suggesting that tumor-specific Ags/melanoma differentiation Ags may complement each other in the context of melanoma Ag-specific vaccination.
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Affiliation(s)
- M C Panelli
- Surgery Branch, Division of Clinical Sciences, National Cancer Institute, and Department of Transfusion Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA
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16
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Kobayashi Y, Higashi T, Nouso K, Nakatsukasa H, Ishizaki M, Kaneyoshi T, Toshikuni N, Kariyama K, Nakayama E, Tsuji T. Expression of MAGE, GAGE and BAGE genes in human liver diseases: utility as molecular markers for hepatocellular carcinoma. J Hepatol 2000; 32:612-7. [PMID: 10782910 DOI: 10.1016/s0168-8278(00)80223-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIMS The MAGE, GAGE and BAGE genes encode tumor antigens recognized by autologous cytotoxic T lymphocytes. The aim of this study was to evaluate the possibility of using these genes as molecular markers and as the targets of specific immunotherapy for human hepatocellular carcinoma (HCC). METHODS The expressions of MAGE-1, MAGE-3, GAGE1-6, GAGE1-2 and BAGE mRNA in 33 surgically resected HCC samples and 26 of their corresponding non-cancerous samples (11 liver cirrhosis and 15 chronic hepatitis) were studied by a reverse-transcription polymerase chain reaction, and were compared with clinicopathological parameters. The expression of MAGE-1 was also examined in 16 biopsied HCC samples. RESULTS MAGE-1, MAGE-3, GAGE1-6, GAGE1-2 and BAGE mRNA were expressed in 67%, 39%, 36%, 30%, and 21% of the HCC, respectively. At least one transcript was detected in 88% of the HCC, while no expression was observed in the non-cancerous livers. There was no significant correlation between the expression of any of the tumor antigens examined and the differentiation stage or size of the HCC. Especially, MAGE-1 was highly expressed in small HCC with a diameter of less than 2 cm and in well-differentiated HCC (81% and 70%, respectively), and was also expressed even in alpha-fetoprotein-negative and PIVKA-II-negative HCC (58% and 76%, respectively). The MAGE-1 expression was detected in 69% of biopsied HCC samples and the expression was high in both small and well-differentiated HCC. CONCLUSIONS These tumor-specific antigens can be useful as molecular markers and as the possible target molecules for the specific immunotherapy of human HCC.
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Affiliation(s)
- Y Kobayashi
- The First Department of Internal Medicine, Okayama University Medical School, Okayama-City, Japan
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17
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Swiniarski H, Wolf SF, Sturmhoefel K, Peterson RL, Dorner AJ, O'Toole M. IL-12-Dependent enhancement of CTL response to weak class I-restricted peptide immunogens requires coimmunization with T helper cell immunogens. Clin Immunol 2000; 94:200-11. [PMID: 10692239 DOI: 10.1006/clim.2000.4836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effect of in vivo administration of rmIL-12 on the CTL response to immunization with a weakly immunogenic class I-restricted peptide emulsified in incomplete Freund's adjuvant was investigated. In the absence of IL-12, peptide-specific CTL responses were significantly greater following coimmunization with class I-restricted peptide and T helper cell antigens than following immunization with the class I-restricted peptide alone. IL-12-dependent enhancement of the CTL response to peptide immunization was demonstrated in the presence of, but not in the absence of, coimmunization with T helper cell antigen. These findings indicate that IL-12 enhancement of the CTL response to weak class I-restricted immunogens is T helper cell dependent. Treatment with rmIL-12 also enhanced the CTL response to immunization with cDNA encoding both CTL and T helper cell epitopes. These findings are relevant to the design of vaccines containing tumor-associated class I-restricted peptides currently being tested as an immunotherapy for cancer patients.
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Affiliation(s)
- H Swiniarski
- Genetics Institute, One Burtt Road, Andover, Massachusetts 01810, USA
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18
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Lake DF, Salgaller ML, van der Bruggen P, Bernstein RM, Marchalonis JJ. Construction and binding analysis of recombinant single-chain TCR derived from tumor-infiltrating lymphocytes and a cytotoxic T lymphocyte clone directed against MAGE-1. Int Immunol 1999; 11:745-51. [PMID: 10330280 DOI: 10.1093/intimm/11.5.745] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The TCR is responsible for the specificity of cytotoxic T lymphocytes (CTL) by recognizing peptides presented in the context of MHC. By producing recombinant soluble TCR, it is possible to study this interaction at the molecular level. We generated single-chain TCR (scTCR) from tumor infiltrating lymphocytes (TIL) and one CTL clone directed against melanoma-associated antigen (MAGE)-1. Sixty-eight day anti-MAGE-1 TIL and one cloned anti-MAGE-1 CTL were analyzed by PCR for their Valpha and Vbeta gene usage. The TIL population showed a restriction in Valpha and Vbeta usage with only Valpha4 and Valpha9 and Vbeta2 and Vbeta7 expressed. The anti-MAGE-1 CTL clone demonstrated absolute restriction with only Valpha12 and Vbeta1 expressed. DNA sequence analysis was performed on all V regions. For the TIL, each possible Valpha-Vbeta combination (i.e. Valpha4-Vbeta2, Valpha9-Vbeta2, Valpha4-Vbeta7 and Valpha9-Vbeta7) was constructed as a distinct scTCR and the recombinant proteins expressed in bacteria. From the anti-MAGE-1 TIL, Valpha4-Vbeta2 scTCR demonstrated binding activity to HLA-A1(+) cells pulsed with MAGE-1 peptide. Results obtained from screening a panel of our scTCR constructs on HLA-A1(+) cells pulsed with MAGE-1 peptide or irrelevant peptide demonstrated that Vbeta2 plays a significant role in binding to the MAGE-1 peptide. Amino acid alignment analysis showed that each Vbeta sequence is distinctly different from the others. These findings demonstrate that soluble TCR in single-chain format have binding activity. Furthermore, the results indicate that in TCR, like antibodies, one chain may contribute a dominant portion of the binding activity.
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MESH Headings
- Amino Acid Sequence
- Antigens, Neoplasm
- HLA-A1 Antigen/physiology
- Humans
- Lymphocytes, Tumor-Infiltrating/metabolism
- Melanoma-Specific Antigens
- Molecular Sequence Data
- Neoplasm Proteins/immunology
- Neoplasm Proteins/metabolism
- Protein Folding
- Receptors, Antigen, T-Cell, alpha-beta/chemistry
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Recombinant Proteins/metabolism
- T-Lymphocytes, Cytotoxic/metabolism
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Affiliation(s)
- D F Lake
- Department of Microbiology and Immunology, and Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA
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19
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Kanaoka S, Yamasaki S, Okino T, Inoue N, Shimada Y, Kaneko M, Otaka A, Fujii N, Imamura M. Induction of human leukocyte antigen (HLA)-A2-restricted and MAGE-3-gene-derived peptide-specific cytolytic T lymphocytes using cultured dendritic cells from an HLA-A2 esophageal cancer patient. J Surg Oncol 1999; 71:16-21. [PMID: 10362086 DOI: 10.1002/(sici)1096-9098(199905)71:1<16::aid-jso4>3.0.co;2-a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Using peripheral blood mononuclear cells (PBMCs) from a 10-year survivor with established human leukocyte antigen (HLA)-A2(+) and MAGE-3(+) esophageal cancer cell line (KYSE-170), we examined the induction of HLA-A2-restricted and MAGE-3-gene-derived peptide (FLWGPRALV, amino acids 271-279)-specific cytolytic T lymphocytes (CTLs). METHODS Autologous dendritic cells (DCs) cultured with granulocyte-macrophage colony stimulating factor and interleukin-4 were used as antigen presenting cells. PBMCs were stimulated by peptide-pulsed DCs in vitro. RESULTS PBMC cocultured with FLWGPRALV-pulsed DCs could induce the relevant peptide-specific CTLs, which had tumor necrosis factor production and specific cytotoxicity against relevant peptide-pulsed autologous DCs (34%, effector:target ratio = 40:1). Moreover, they showed specific cytotoxicity against the autologous esophageal cancer cell line KYSE-170 (17%, effector:target ratio = 40:1). CONCLUSIONS These results suggest that FLWGPRALV-pulsed cultured DCs would be a potent candidate for peptide vaccine against HLA-A2(+) and MAGE-3(+) esophageal cancer.
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Affiliation(s)
- S Kanaoka
- Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Japan.
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20
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Zorn E, Hercend T. A MAGE-6-encoded peptide is recognized by expanded lymphocytes infiltrating a spontaneously regressing human primary melanoma lesion. Eur J Immunol 1999; 29:602-7. [PMID: 10064076 DOI: 10.1002/(sici)1521-4141(199902)29:02<602::aid-immu602>3.0.co;2-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In recent years, experiments based on the in vitro stimulation of either autologous peripheral blood lymphocytes or tumor-infiltrating lymphocytes with melanoma cells have shown that distinct members of the large MAGE gene family encode tumor-associated antigenic peptides. However, little is still known about natural anti-MAGE responses in vivo. We have studied a case of spontaneously regressing human melanoma, hypothesizing that in this unique situation, the host immune system had developed an efficient cytotoxic T lymphocyte (CTL) response against the cancer cells. Amongst the dense tumor infiltrate, certain clonal populations of T cells were shown to be amplified, thereby suggesting that an antigen-driven selection had occurred at the tumor site. One of the expanded tumor-infiltrating lymphocytes was shown to be a Vbeta13+ CD8+ CTL displaying a strong and selective cytotoxic activity against the autologous melanoma cells. Here we show that this cytotoxic T cell clone recognizes a MAGE-6-encoded peptide. MAGE-6 is therefore the fourth gene of the MAGE family shown to encode antigenic peptide recognized by T cells. Together, these data provide further evidence that T cell responses against MAGE antigens may naturally develop in vivo.
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Affiliation(s)
- E Zorn
- Unité INSERM U267, Hôpital Paul Brousse, Villejuif, France.
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21
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Clay TM, Custer MC, McKee MD, Parkhurst M, Robbins PF, Kerstann K, Wunderlich J, Rosenberg SA, Nishimura MI. Changes in the Fine Specificity of gp100(209–217)-Reactive T Cells in Patients Following Vaccination with a Peptide Modified at an HLA-A2.1 Anchor Residue. THE JOURNAL OF IMMUNOLOGY 1999. [DOI: 10.4049/jimmunol.162.3.1749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
In a recent clinical trial, HLA-A2+ melanoma patients were vaccinated with a peptide derived from the melanoma Ag gp100, which had been modified at the second position (g9-209 2M) to enhance MHC binding affinity. Vaccination led to a significant increase in lymphocyte precursors in 10 of 11 patients but did not result in objective cancer responses. We observed that some postvaccination PBMC cultures were less reactive with tumor cells than they were with g9-209 peptide-pulsed T2 cells. In contrast, g9-209-reactive tumor-infiltrating lymphocyte cultures generally reacted equally with tumor cells and g9-209 peptide-pulsed T2 cells. To investigate this difference in T cell reactivity, T cell cloids derived from the PBMC of three patients vaccinated with g9-209 2M were compared with T cell cloids isolated from g9-209-reactive TIL cultures. All of the T cell cloids obtained from TIL reacted with HLA-A2+, gp100+ melanoma cell lines as well as with g9-209 and g9-209 2M peptide-pulsed targets. In contrast, only 3 of 20 PBMC-derived T cell cloids reacted with melanoma cell lines in addition to g9-209 and to g9-209 2M peptide-pulsed targets. Twelve of twenty PBMC-derived cloids reacted with g9-209 and g9-209 2M peptide-pulsed targets but not with melanoma cell lines. And 5 of 20 PBMC-derived cloids recognized only the g9-209 2M-modified peptide-pulsed targets. These results suggest that immunizing patients with the modified peptide affected the T cell repertoire by expanding an array of T cells with different fine specificities, only some of which recognized melanoma cells.
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Affiliation(s)
- Timothy M. Clay
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Mary C. Custer
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Mark D. McKee
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Maria Parkhurst
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Paul F. Robbins
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Keith Kerstann
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - John Wunderlich
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Steven A. Rosenberg
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Michael I. Nishimura
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
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22
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Fujie T, Tahara K, Tanaka F, Mori M, Takesako K, Akiyoshi T. A MAGE-1-encoded HLA-A24-binding synthetic peptide induces specific anti-tumor cytotoxic T lymphocytes. Int J Cancer 1999; 80:169-72. [PMID: 9935194 DOI: 10.1002/(sici)1097-0215(19990118)80:2<169::aid-ijc1>3.0.co;2-p] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Although several MAGE-1 peptides have already been identified, the MAGE-1-encoded peptide presented by HLA-A24, which is the most common allele in Japanese population and is also frequently present in Caucasians, might have a wide applicability for immunotherapy using these peptides. To identify this potential peptide, we examined the induction of specific cytotoxic T lymphocytes (CTL) from the peripheral-blood mononuclear cells (PBMC) in HLA-A24 healthy donors by in vitro stimulation with MAGE-1-encoded synthetic peptides with a binding affinity for HLA-A24, by a simplified method. Of the 5 peptides tested, the highest HLA binder (NYKHCFPEI) was able to elicit CTL from unseparated PBMC by stimulation with freshly isolated, peptide-pulsed PMBC as antigen-presenting cells (APC) and by also using interleukin 7 and keyhole-limpet hemocyanin for a primary culture. The induced CTL could thus lyse HLA-A24 tumor cells expressing MAGE-1, as well as the peptide-pulsed target cells, in an HLA-class-I-restricted manner. By using the MAGE-1/HLA-A24 peptide, NYKHCFPEI, we found it possible to immunize many more patients, especially Japanese patients, by means of such peptide-based immunotherapeutic approaches to MAGE-1-positive malignant tumors.
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Affiliation(s)
- T Fujie
- Department of Surgery, Medical Institute of Bioregulation, Kyushu University, Beppu, Japan
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23
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McDowell CL, Papoutsakis ET. Increased agitation intensity increases CD13 receptor surface content and mRNA levels, and alters the metabolism of HL60 cells cultured in stirred tank bioreactors. Biotechnol Bioeng 1998. [DOI: 10.1002/(sici)1097-0290(19981020)60:2<239::aid-bit11>3.0.co;2-h] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Chen ME, Lin SH, Chung LW, Sikes RA. Isolation and characterization of PAGE-1 and GAGE-7. New genes expressed in the LNCaP prostate cancer progression model that share homology with melanoma-associated antigens. J Biol Chem 1998; 273:17618-25. [PMID: 9651357 DOI: 10.1074/jbc.273.28.17618] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The LNCaP progression model of human prostate cancer consists of lineage-related sublines that differ in their androgen sensitivity and metastatic potential. A differential display polymerase chain reaction was employed to evaluate mRNA expression differences between the LNCaP sublines in order to define the differences in gene expression between the androgen-sensitive, nontumorigenic LNCaP cell line and the androgen-insensitive, metastatic LNCaP sublines, C4-2 and C4-2B. An amplicon, BG16.21, was isolated that showed increased expression in the androgen-independent and metastatic LNCaP sublines, C4-2 and C4-2B. Hybridization screening of a lambda gt11 expression library with BG16.21 revealed two transcripts, both homologous to BG16.21 at the 3' end. A GenBankTM data base search using the GCG Wisconsin software package revealed the shorter approximately 600-bp transcript (designated GAGE-7) to be a new member of the GAGE family. The second approximately 700-bp transcript was a novel gene (designated PAGE-1, "prostate associated gene") with only 45% homology to GAGE gene family members. RNA blot analysis demonstrated that GAGE-7 mRNA was expressed at equal levels in all lineage related prostate cancer cell sublines, while PAGE-1 mRNA levels were elevated 5-fold in C4-2 and C4-2B as compared with LNCaP cells. Neither GAGE-7 nor PAGE-1 demonstrated any regulation by androgens in the prostate cancer cell lines used in this study. PAGE-1 and GAGE-7 expression was found to be restricted to testes (high) and placenta (low) on human multiple tissue Northern blots. As GAGE/MAGE antigens were reported previously to be targets for tumor-specific cytotoxic lymphocytes in melanoma, these results suggest that PAGE-1 and GAGE-7 may be related to prostate cancer progression and may serve as potential targets for novel therapies.
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Affiliation(s)
- M E Chen
- University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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25
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Castelli C, Mazzocchi A, Rini F, Tarsini P, Rivoltini L, Maio M, Gallino G, Belli F, Parmiani G. Immunogenicity of the ALLAVGATK (gp100[17-25]) peptide in HLA-A3.1 melanoma patients. Eur J Immunol 1998; 28:1143-54. [PMID: 9565353 DOI: 10.1002/(sici)1521-4141(199804)28:04<1143::aid-immu1143>3.0.co;2-k] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A T cell line recognizing autologous and allogeneic HLA-A3.1 melanomas was obtained from a disease-free melanoma patient (patient 15392). By transfection of a tumor cDNA library and in vitro sensitization experiments, the ALLAVGATK gp100/Mel17-derived peptide was found to be the epitope recognized by this melanoma-specific T cell line. The role of the ALLAVGATK peptide in the systemic immune response to melanoma of this patient was evaluated. When pulsed on the autologous peripheral blood mononuclear cells, the ALLAVGATK peptide generated tumor-specific HLA-A3-restricted T lymphocytes and a single restimulation in vitro was sufficient to raise gp100-specific T lymphocytes, indicating a high frequency of epitope-specific T cells. gp100-specific T cells were also induced from T lymphocytes purified from tumor-invaded lymph nodes (tumor-associated lymphocytes, TAL). TAL-derived effectors displayed lower peptide affinity and lower tumor recognition than effectors elicited from peripheral blood lymphocytes (PBL). To further evaluate its immunogenicity, ALLAVGATK was used to stimulate PBL derived from six additional HLA-A3.1 melanoma patients and seven healthy donors. After 7 weeks of peptide stimulation in vitro the generation of anti-gp100 and tumor-specific T cell lines was achieved in one out of the six patients analyzed. Taken together these data indicate that an in vivo priming leading to a systemic immunity against gp100 in HLA-A3 melanoma patients may occasionally occur and that the immunogenicity of ALLAVGATK peptide in melanoma patients is comparable to that of other HLA-A2-restricted epitopes derived from gp100/Mel 17 protein.
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Affiliation(s)
- C Castelli
- Division of Experimental Oncology D, Istituto Nazionale Tumori, Milan, Italy.
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26
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Parmiani G, Colombo MP, Melani C, Arienti F. Cytokine gene transduction in the immunotherapy of cancer. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 1997; 40:259-307. [PMID: 9217928 DOI: 10.1016/s1054-3589(08)60142-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- G Parmiani
- Gene Therapy Program, Istituto Nazionale Tumori, Milan, Italy
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27
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Castelli C, Rivoltini L, Mazzocchi A, Parmiani G. T-cell recognition of melanoma antigens and its therapeutic applications. INTERNATIONAL JOURNAL OF CLINICAL & LABORATORY RESEARCH 1997; 27:103-10. [PMID: 9266280 DOI: 10.1007/bf02912443] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
During the last few years, tumor immunology has gained impetus due to the molecular definition of T-cell-recognized antigens and the mechanisms of such recognition, antigen processing, and presentation. To date, the majority of the identified melanoma antigens are shared among different melanomas and some are also expressed in tumors of different histology. However, unique antigens expressed solely by the melanoma autologous to the T-cell used for their characterization were also found. The identification of the immunogenic peptides, the minimal target entity required for T-cell recognition, has provided novel reagents for the development of peptide-based immunotherapy. These findings, together with the understanding of requirements for T-lymphocyte recognition and activation, allow the design of new therapeutic protocols. In addition, the large body of data now available on the fine mechanism of antigen processing and presentation have revealed not only the role of the MHC molecules but also that of other intracellular proteins, such as transporter associated with antigen processing-1 and -2 and proteosome-related molecules. These findings suggest that, in order to select patients eligible for vaccination, the expression of the MHC allele involved in T-cell recognition, the profile of tumor antigens, and the status of the antigen-processing system should be carefully evaluated in tumors cells of prospective patients. In this review, some of the basic concepts of immune recognition and the current view of melanoma tumor antigens recognized by T-lymphocytes will be discussed along with the potential application of these findings in designing new therapeutic strategies.
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Affiliation(s)
- C Castelli
- Division of Experimental Oncology D, Istituto Nazionale per lo Studio e la Cura dei Tumori, Milan, Italy
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28
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Alexander M, Salgaller ML, Celis E, Sette A, Barnes WA, Rosenberg SA, Steller MA. Generation of tumor-specific cytolytic T lymphocytes from peripheral blood of cervical cancer patients by in vitro stimulation with a synthetic human papillomavirus type 16 E7 epitope. Am J Obstet Gynecol 1996; 175:1586-93. [PMID: 8987945 DOI: 10.1016/s0002-9378(96)70110-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Approximately 90% of squamous carcinomas of the cervix harbor the human papillomavirus and type 16 has been detected in nearly 50% of cases. Recent studies in mice have shown that the human papillomavirus type 16 E7 oncoprotein contains peptide epitopes that are processed and presented in association with a major histocompatibility antigen for recognition by cytolytic T lymphocytes. We investigated whether an epitope from human papillomavirus type 16 E7 could be used to generate specific human cytolytic T lymphocytes in patients with cervical carcinoma. STUDY DESIGN After radiation therapy, three patients with antigen HLA-A2 and with locally advanced cervical cancer underwent leukapheresis. Epitope-specific cytolytic T lymphocytes were generated from the peripheral blood mononuclear cells by in vitro stimulation with autologous peripheral blood mononuclear cells pulsed with a human papillomavirus type 16 E7, HLA-A2-restricted, synthetic peptide, E7(11-20) (YMLDLQPETT). RESULTS In two patients cytolytic T lymphocytes were capable of E7(11-20)-specific, HLA-A2-restricted cytolysis of the peptide-pulsed, HLA-matched, T2 target cell line. Cytolytic T lymphocytes from one of these patients also demonstrated specific cytolysis against the HLA-A2+, HPV-16+ CaSki cervical cancer cell line but did not lyse either HLA-A2+, HPV-16- MS-751 cells or HLA-A2-, HPV-16- HT-3 cells. CONCLUSIONS These experiments demonstrate that novel cytolytic T lymphocytes that recognize a human papillomavirus type 16 E7 epitope can be generated by using the peripheral blood mononuclear cells from irradiated patients with cervical cancer. In addition, because CaSki cells were specifically lysed by the cytolytic T lymphocytes, these data indicate that the peptide E7(11-20) is endogenously processed and presented on the cell surface of the CaSki cells. The demonstration of epitope-specific lysis of cytolytic T lymphocytes of HPV-16+ cervical cancer cells supports further efforts to develop human papillomavirus peptide-based vaccines or antigen-specific adoptive immunotherapy for the prevention and treatment of cervical carcinoma.
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Affiliation(s)
- M Alexander
- Surgery Branch, National Cancer Institute, Bethesda, MD 20892-1502, USA
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29
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Abstract
The prelude to successful human somatic gene therapy, i.e. the efficient transfer and expression of a variety of human genes into target cells, has already been accomplished in several systems. Safe methods have been devised to do this using non-viral and viral vectors. Potentially therapeutic genes have been transferred into many accessible cell types, including hematopoietic cells, hepatocytes and cancer cells, in several different approaches to ex vivo gene therapy. Successful in vivo gene therapy requires improvements in tissue-targeting and new vector design, which are already being sought. Gene-transfer protocols have been approved for human use in inherited diseases, cancer and acquired disorders. Although the results of these trials to date have been somewhat disappointing, human somatic cell gene therapy promises to be an effective addition to the arsenal of approaches to the therapy of many human diseases in the 21st century if not sooner.
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Affiliation(s)
- A Bank
- Hammer Health Sciences Center, New York, NY 10032, USA
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30
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Induction of Antigen-Specific Tumor Immunity by Genetic and Cellular Vaccines against MAGE: Enhanced Tumor Protection by Coexpression of Granulocyte-Macrophage Colony-Stimulating Factor and B7-1. Mol Med 1996. [DOI: 10.1007/bf03401639] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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31
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Hillyer CD, Klein HG. Immunotherapy and gene transfer in the treatment of the oncology patient: role of transfusion medicine. Transfus Med Rev 1996; 10:1-14. [PMID: 8787926 DOI: 10.1016/s0887-7963(96)80118-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- C D Hillyer
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
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32
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Rosenberg SA, Kawakami Y, Robbins PF, Wang R. Identification of the genes encoding cancer antigens: implications for cancer immunotherapy. Adv Cancer Res 1996; 70:145-77. [PMID: 8902056 DOI: 10.1016/s0065-230x(08)60874-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- S A Rosenberg
- Surgery Branch, National Cancer Institute, Bethesda, Maryland 20892, USA
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33
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Hald J, Rasmussen N, Claesson MH. Tumour-infiltrating lymphocytes mediate lysis of autologous squamous cell carcinomas of the head and neck. Cancer Immunol Immunother 1995; 41:243-50. [PMID: 7489567 PMCID: PMC11037798 DOI: 10.1007/bf01516999] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/1995] [Accepted: 08/24/1995] [Indexed: 01/25/2023]
Abstract
Tumour-infiltrating lymphocytes (TIL) and tumours from six patients with squamous cell carcinomas of the head and neck (SCCHN) were investigated. The six tumours all expressed major histocompatibility complex (MHC) class I antigens both in vivo and as tumor cell lines grown in vitro. In addition, the cancer cells either overexpressed the tumour-suppressor gene product p53 or harboured human papilloma virus 16/18 (HPV). The TIL were expanded in vitro in the presence of interleukin-2, immobilised anti-CD3 mAb and soluble anti-CD28 mAb. Expanded TIL cultures contained both CD4+ and CD8+ T cells, but generally contained few CD56+CD3- cells of the natural killer (NK) phenotype. CD8+ T cells dominated the individual TIL cultures from five of the six patients and showed significant autologous tumour cell lysis. In TIL cultures derived from four of these tumour-reactive TIL cultures, killing could be partially blocked by an anti-MHC class I mAb. TIL cultures reacting with autologous tumour cells also showed strong TCR/CD3-redirected cytotoxicity when assayed against hybridoma cells expressing anti-TCR/CD3 mAb as well as natural-killer(NK)-like activity. A number of TIL cultures devoid of autologous tumour cell lysis were capable of lysing the natural-killer(NK)-sensitive K562 cell line suggesting that the SCCHN cells themselves are resistant to NK-like lysis. In conclusion, TIL cultures from head and neck carcinomas contain T cells which, upon expansion in vitro, can lyse autologous tumour cells in a MHC-class-I-restricted fashion. Thus, the results of the present study document that carcinomas of the head and neck in some patients are infiltrated by cytotoxic T cell precursors potentially capable of rejecting the autologous tumour.
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Affiliation(s)
- J Hald
- Department of Otolaryngology, University of Copenhagen, Gentofte Hospital, Hellerup, Denmark
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