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de Jonge H, Iamele L, Maggi M, Pessino G, Scotti C. Anti-Cancer Auto-Antibodies: Roles, Applications and Open Issues. Cancers (Basel) 2021; 13:813. [PMID: 33672007 PMCID: PMC7919283 DOI: 10.3390/cancers13040813] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/05/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022] Open
Abstract
Auto-antibodies are classically associated with autoimmune diseases, where they are an integral part of diagnostic panels. However, recent evidence is accumulating on the presence of auto-antibodies against single or selected panels of auto-antigens in many types of cancer. Auto-antibodies might initially represent an epiphenomenon derived from the inflammatory environment induced by the tumor. However, their effect on tumor evolution can be crucial, as is discussed in this paper. It has been demonstrated that some of these auto-antibodies can be used for early detection and cancer staging, as well as for monitoring of cancer regression during treatment and follow up. Interestingly, certain auto-antibodies were found to promote cancer progression and metastasis, while others contribute to the body's defense against it. Moreover, auto-antibodies are of a polyclonal nature, which means that often several antibodies are involved in the response to a single tumor antigen. Dissection of these antibody specificities is now possible, allowing their identification at the genetic, structural, and epitope levels. In this review, we report the evidence available on the presence of auto-antibodies in the main cancer types and discuss some of the open issues that still need to be addressed by the research community.
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Affiliation(s)
| | | | | | | | - Claudia Scotti
- Unit of Immunology and General Pathology, Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy; (H.d.J.); (L.I.); (M.M.); (G.P.)
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2
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Lischer C, Vera-González J. The Road to Effective Cancer Immunotherapy—A Computational Perspective on Tumor Epitopes in Anti-Cancer Immunotherapy. SYSTEMS MEDICINE 2021. [DOI: 10.1016/b978-0-12-801238-3.11605-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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3
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Winge-Main AK, Wälchli S, Inderberg EM. T cell receptor therapy against melanoma-Immunotherapy for the future? Scand J Immunol 2020; 92:e12927. [PMID: 32640053 DOI: 10.1111/sji.12927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/28/2020] [Accepted: 07/02/2020] [Indexed: 12/23/2022]
Abstract
Malignant melanoma has seen monumental changes in treatment options the last decade from the very poor results of dacarbazine treatment to the modern-day use of targeted therapies and immune checkpoint inhibitors. Melanoma has a high mutational burden making it more capable of evoking immune responses than many other tumours. Even when considering double immune checkpoint blockade with anti-CTLA-4 and anti-PD-1, we still have far to go in melanoma treatment as 50% of patients with metastatic disease do not respond to current treatment. Alternative immunotherapy should therefore be considered. Since melanoma has a high mutational burden, it is considered more immunogenic than many other tumours. T cell receptor (TCR) therapy could be a possible way forward, either alone or in combination, to improve the response rates of this deadly disease. Melanoma is one of the cancers where TCR therapy has been frequently applied. However, the number of antigens targeted remains fairly limited, although advanced personalized therapies aim at also targeting private mutations. In this review, we look at possible aspects of targeting TCR therapy towards melanoma and provide an implication of its use in the future.
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Affiliation(s)
- Anna K Winge-Main
- Department of Cellular Therapy, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Department of Oncology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Sébastien Wälchli
- Department of Cellular Therapy, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Else Marit Inderberg
- Department of Cellular Therapy, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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4
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Effects of Influenza Derived Peptide on CD8 T Cell Responses to MHC Class I-Restricted Human Telomerase Reverse Transcriptase (hTERT)-Derived Peptide. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-9683-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Rajendrakumar SK, Uthaman S, Cho CS, Park IK. Nanoparticle-Based Phototriggered Cancer Immunotherapy and Its Domino Effect in the Tumor Microenvironment. Biomacromolecules 2018; 19:1869-1887. [DOI: 10.1021/acs.biomac.8b00460] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Santhosh Kalash Rajendrakumar
- Department of Biomedical Science and BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Chonnam National University Medical School, Gwangju 61469, South Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Chong-Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
| | - In-Kyu Park
- Department of Biomedical Science and BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Chonnam National University Medical School, Gwangju 61469, South Korea
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6
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Abstract
The past several years can be considered a renaissance era in the treatment of metastatic melanoma. Following a 30-year stretch in which oncologists barely put a dent in a very grim overall survival (OS) rate for these patients, things have rapidly changed course with the recent approval of three new melanoma drugs by the FDA. Both oncogene-targeted therapy and immune checkpoint blockade approaches have shown remarkable efficacy in a subset of melanoma patients and have clearly been game-changers in terms of clinical impact. However, most patients still succumb to their disease, and thus, there remains an urgent need to improve upon current therapies. Fortunately, innovations in molecular medicine have led to many silent gains that have greatly increased our understanding of the nature of cancer biology as well as the complex interactions between tumors and the immune system. They have also allowed for the first time a detailed understanding of an individual patient's cancer at the genomic and proteomic level. This information is now starting to be employed at all stages of cancer treatment, including diagnosis, choice of drug therapy, treatment monitoring, and analysis of resistance mechanisms upon recurrence. This new era of personalized medicine will foreseeably lead to paradigm shifts in immunotherapeutic treatment approaches such as individualized cancer vaccines and adoptive transfer of genetically modified T cells. Advances in xenograft technology will also allow for the testing of drug combinations using in vivo models, a truly necessary development as the number of new drugs needing to be tested is predicted to skyrocket in the coming years. This chapter will provide an overview of recent technological developments in cancer research, and how they are expected to impact future diagnosis, monitoring, and development of novel treatments for metastatic melanoma.
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Affiliation(s)
| | | | | | - Patrick Hwu
- University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Gregory Lizée
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
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7
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Aref AM, Hoa NT, Ge L, Agrawal A, Dacosta-Iyer M, Lambrecht N, Ouyang Y, Cornforth AN, Jadus MR. HCA519/TPX2: a potential T-cell tumor-associated antigen for human hepatocellular carcinoma. Onco Targets Ther 2014; 7:1061-70. [PMID: 24966688 PMCID: PMC4063820 DOI: 10.2147/ott.s61442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Immunotherapy for human hepatocellular cancer (HCC) is slowly making progress towards treating these fatal cancers. The identification of new antigens can improve this approach. We describe a possible new antigen, hepatocellular carcinoma‐associated antigen‐519/targeting protein for Xklp‐2 (HCA519/TPX2), for HCC that might be beneficial for T‐cell specific HCC immunotherapy. Methods HCC was studied for the expression for 15 tumor‐associated antigens considered useful for immunotherapy within three HCC cell lines (HepG2, Hep3B, and PLC/PRF/5), lymphocytes, non‐cancerous livers, and clinical HCC. The expression of tumor antigenic precursor proteins (TAPPs) messenger RNA was first screened by reverse transcriptase quantitative real‐time polymerase chain reaction. Results Four antigens (alpha fetoprotein, aspartyl/asparaginyl βhydroxylase, glypican3 and HCA519/TPX2) proved to be the best expressed TAPPs within the HCC specimens by molecular analyses. HCA519/TPX2 was detected by intracellular cell flow cytometry within HCC cell lines by using a specific antibody towards this TAPP. This antibody also detected the protein within primary HCCs. We synthesized two HCA519/TPX2 peptides (HCA519464–472 and HCA519351–359) which can bind to human leukocyte antigen (HLA)‐A*0201. Dendritic cells pulsed with these peptides stimulated cytolytic T lymphocytes (CTLs). These killer T‐cells lysed HLA‐A*0201+ T2 cells exogenously loaded with the correct specific peptide. The CTLs killed HepG2 (HLA‐A2+ and HCA519+), but not the Hep3B and PLC/PRF/5 cell lines, which are HCA519+ but HLA‐A2‐negative. In silico analysis reveals that HCA519/TPX2 has the inherent ability to bind to a very wide variety of HLA antigens. Conclusion HCA519/TPX2 is a viable immunotarget that should be further investigated within HCC patients.
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Affiliation(s)
- Ahmed M Aref
- Biological Science Department, Modern Sciences and Arts University, Faculty of Dentistry, Cairo, Egypt ; Southern California Institute for Research and Education, Veterans Affairs Medical Center, Long Beach, CA, USA ; Research Health Care Group, Veterans Affairs Medical Center Long Beach, CA, USA
| | - Neil T Hoa
- Research Health Care Group, Veterans Affairs Medical Center Long Beach, CA, USA
| | - Lisheng Ge
- Research Health Care Group, Veterans Affairs Medical Center Long Beach, CA, USA
| | - Anshu Agrawal
- Department of Medicine, Division of Basic and Clinical Immunology, University of California, Irvine, CA, USA
| | - Maria Dacosta-Iyer
- Pathology and Laboratory Medicine Department, Veterans Affairs Medical Center Long Beach, CA, USA ; Department of Pathology and Laboratory Medicine, University of California, Irvine, CA, USA
| | - Nils Lambrecht
- Pathology and Laboratory Medicine Department, Veterans Affairs Medical Center Long Beach, CA, USA ; Department of Pathology and Laboratory Medicine, University of California, Irvine, CA, USA
| | - Yi Ouyang
- Pathology and Laboratory Medicine Department, Veterans Affairs Medical Center Long Beach, CA, USA ; Department of Pathology and Laboratory Medicine, University of California, Irvine, CA, USA
| | | | - Martin R Jadus
- Pathology and Laboratory Medicine Department, Veterans Affairs Medical Center Long Beach, CA, USA ; Department of Pathology and Laboratory Medicine, University of California, Irvine, CA, USA ; Neuro-Oncology Program, Chao Comprehensive Cancer Center, University of California, Irvine, CA, USA
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8
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Pilla L, Valenti R, Marrari A, Patuzzo R, Santinami M, Parmiani G, Rivoltini L. Vaccination: role in metastatic melanoma. Expert Rev Anticancer Ther 2014; 6:1305-18. [PMID: 16925496 DOI: 10.1586/14737140.6.8.1305] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Based on the poor impact on overall survival obtained by systemic chemotherapy in metastatic melanoma and the identification of many melanoma antigens recognized by T cells, in the last decade many efforts have been devoted to the development of active specific immunotherapy as a promising systemic treatment for this neoplastic disease. A number of Phase I-II clinical trials have been performed with different vaccination approaches that included whole tumor cells, antigen peptides, antigen-pulsed dendritic cells, recombinant viruses, plasmids or naked DNA, and heat-shock proteins. Despite some promising immunological and clinical results obtained in these studies, melanoma-specific vaccines have altogether failed to prove their efficacy in the few large Phase III randomized clinical trials performed. Nonetheless, the possibility of activating the human immune system to recognize and destroy tumor cells remains a challenging investigative field, considering that the new knowledge of the intricate cellular and molecular mechanisms that regulate the immune function and tumor-host interactions may allow the development of new clinically relevant melanoma vaccination strategies.
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Affiliation(s)
- Lorenzo Pilla
- Istituto Nazionale per lo Studio e la Cura dei Tumori, Unit of Immunotherapy of Human Tumors, Via Venezian 1, 20133 Milan, Italy.
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9
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Tumor immune surveillance and ovarian cancer: lessons on immune mediated tumor rejection or tolerance. Cancer Metastasis Rev 2011; 30:141-51. [PMID: 21298574 DOI: 10.1007/s10555-011-9289-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the past few years, cancer immunotherapies have produced promising results. Although traditionally considered unresponsive to immune therapy, increasing evidence indicates that ovarian cancers are, in fact, immunogenic tumors. This evidence comes from diverse epidemiologic and clinical data comprising evidence of spontaneous antitumor immune response and its association with longer survival in a proportion of ovarian cancer patients; evidence of tumor immune evasion mechanisms and their association with short survival in some ovarian cancer patients; and finally pilot data supporting the efficacy of immune therapy. Below we will discuss lessons learned on the biology underlying ovarian cancer immune rejection or tolerance and we will discuss its association with clinical outcome. We will discuss the role of angiogenesis and the tumor endothelium on regulation of the antitumor immune response with a special emphasis on the role of vascular endothelial growth factor (VEGF) in the suppression of immunological processes, which control tumor progression and its unique crosstalk with endothelin systems, and how their interactions may shape the antitumor immune response. In addition, we will discuss mechanisms of tumor tolerance through the suppression or exhaustion of effector cells and how these could be countered in the clinic. We believe that understanding these pathways in the tumor microenvironment will lead to novel strategies for enhancing ovarian cancer immunotherapy.
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10
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Seliger B, Dressler SP, Massa C, Recktenwald CV, Altenberend F, Bukur J, Marincola FM, Wang E, Stevanovic S, Lichtenfels R. Identification and characterization of human leukocyte antigen class I ligands in renal cell carcinoma cells. Proteomics 2011; 11:2528-41. [PMID: 21595034 DOI: 10.1002/pmic.201000486] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 03/07/2011] [Accepted: 03/28/2011] [Indexed: 02/01/2023]
Abstract
The presentation of tumor antigen-derived peptides by human leukocyte antigen (HLA) class I surface antigens on tumor cells is a key prerequisite to trigger effective T-cell responses in cancer patients. Multiple complementary strategies like cDNA and serological expression cloning, reverse immunology and different 'ome'-based methods have been employed to identify potential T-cell targets. This report focuses on a ligandomic profiling approach leading to the identification of 49 naturally processed HLA class I peptide ligands presented on the cell surface of renal cell carcinoma (RCC) cells. The source proteins of the defined HLA ligands are classified according to their biological function and subcellular localization. Previously established cDNA microarray data of paired tissue specimen of RCC and renal epithelium assessed the transcriptional regulation for 28 source proteins. In addition, HLA-A2-restricted, peptide-specific T cells directed against a HLA ligand derived from sulfiredoxin-1 (SRXN1) were generated, which were able to recognize and lyse ligand-presenting target cells in a HLA class I-restricted manner. Furthermore, tumor-infiltrating T cells isolated from a RCC patient were also able to kill SRXN1 expressing tumor cells. Thus, this experimental strategy might be suited to define potential candidate biomarkers and novel targets for T-cell-based immunotherapies of this disease.
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Affiliation(s)
- Barbara Seliger
- Institute of Medical Immunology, Martin-Luther University Halle-Wittenberg, Halle, Germany.
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11
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Wang GZ, Tang XD, Lü MH, Gao JH, Liang GP, Li N, Li CZ, Wu YY, Chen L, Cao YL, Fang DC, Yang SM. Multiple antigenic peptides of human heparanase elicit a much more potent immune response against tumors. Cancer Prev Res (Phila) 2011; 4:1285-95. [PMID: 21505182 DOI: 10.1158/1940-6207.capr-11-0083] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Peptide vaccination for cancer immunotherapy requires an ideal immune response induced by epitope peptides derived from tumor-associated antigens (TAA). Heparanase is broadly expressed in various advanced tumors. Accumulating evidence suggests that heparanase can serve as a universal TAA for tumor immunotherapy. However, due to the low immunogenicity of peptide vaccines, an ideal immune response against tumors usually cannot be elicited in patients. To increase the immunogenicity of peptide vaccines, we designed three 4-branched multiple antigenic peptides (MAP) on the basis of the human leukocyte antigen (HLA)-A2-restricted cytotoxic T lymphocyte (CTL) epitopes of human heparanase that we identified previously as antigen carriers. Our results show that MAP vaccines based on the HLA-A2-restricted CLT epitopes of human heparanase were capable of inducing HLA-A2-restricted and heparanase-specific CTL in vitro and in mice. Moreover, compared with their corresponding linear peptides, heparanase MAP vaccines elicited much stronger lysis of tumor cells by activating CD8(+) T lymphocytes and increasing the releasing of IFN-γ. However, these heparanase-specific CTLs did not lyse heparanase-expressing autologous lymphocytes and dendritic cells, which confirm the safety of these MAP vaccines. Therefore, our findings indicate that MAP vaccines based on CTL epitopes of human heparanase can be used as potent immunogens for tumor immunotherapy because of advantages such as broad spectrum, high effectiveness, high specificity, and safety.
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Affiliation(s)
- Guo-Zhen Wang
- Institute of Gastroenterology, Third Military Medical University, Chongqing 400038, China
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12
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Park JS, Kim HS, Park MY, Kim CH, Chung YJ, Hong YK, Kim TG. Topoisomerase II alpha as a universal tumor antigen: antitumor immunity in murine tumor models and H-2K(b)-restricted T cell epitope. Cancer Immunol Immunother 2010; 59:747-57. [PMID: 19936747 PMCID: PMC11030946 DOI: 10.1007/s00262-009-0795-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Accepted: 10/31/2009] [Indexed: 10/20/2022]
Abstract
Topoisomerase II alpha (Top2alpha) is an attractive candidate to be used as a tumor antigen for cancer immunotherapy, because it is abundantly expressed in various tumors and serves as a target for a number of chemotherapeutic agents. In this study, we demonstrated the immunogenicity of Top2alpha, using dendritic cells (DC) electroporated with RNA encoding the Top2alpha C-terminus (Top2alphaCRNA/DC). Top2alphaCRNA/DC were able to demonstrate in vitro stimulation of T cells from mice that were previously vaccinated with Top2alpha-expressing tumor lysate-pulsed DC. Vaccination with Top2alphaCRNA/DC induced Top2alpha-specific T cell responses in vivo as well as antitumor effects in various murine tumor models including MC-38, B16F10, and GL26. DC pulsed with p1327 (DSDEDFSGL), defined as an epitope presented by H-2K(b), also induced Top2alpha-specific immune responses and antitumor effects. Based on these data, Top2alpha is suggested to be a universal target for cancer immunotherapy.
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Affiliation(s)
- Jung-Sun Park
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Hye-Sung Kim
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Mi-Young Park
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Chang-Hyun Kim
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Yeun-Jun Chung
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Yong-Kil Hong
- Department of Neurosurgery, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
| | - Tai-Gyu Kim
- Department of Microbiology and Immunology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
- Catholic Hematopoietic Stem Cell Bank, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul, 137-701 Korea
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13
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Abstract
One major advance in T-cell-based immunotherapy in the last 20 years has been the molecular definition of numerous viral and tumor antigens. Adoptive T-cell transfer has shown definite clinical benefit in the prophylaxis and treatment of viral infections that develop in pediatric patients after allogeneic transplant and in posttransplant lymphoproliferative disease associated with the Epstein-Barr virus. Developing adoptive T-cell therapies for other malignancies presents additional challenges. This article describes the recent advances in T-cell-based therapies for malignancy and infection in childhood and strategies to enhance the effector functions of T cells and optimize the cellular product, including gene modification and modulation of the host environment.
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Affiliation(s)
- Nabil Ahmed
- Department of Pediatrics, Center for Cell and Gene Therapy, Baylor College of Medicine, 1102 Bates Street, Suite 1770, MC3-3320, Houston, TX 77030, USA.
| | - Helen E. Heslop
- Professor of Pediatrics and Medicine, Center for Cell and Gene Therapy, Baylor College of Medicine and The Methodist Hospital, Houston, TX
| | - Crystal L. Mackall
- Chief, Pediatric Oncology Branch, National Cancer Institute, Bethesda, MD
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14
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Beatty GL, Vonderheide RH. Telomerase as a universal tumor antigen for cancer vaccines. Expert Rev Vaccines 2008; 7:881-7. [PMID: 18767939 DOI: 10.1586/14760584.7.7.881] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
T-cell immunotherapy relies on the fundamental concept that tumor antigens exist and are presented in the context of MHC molecules for recognition by specific T cells capable of cytolysis. However, heterogeneous expression of most characterized tumor antigens limits the broad applicability of cancer vaccines that target such antigens. Telomerase, on the other hand, represents a prototype of a universal tumor antigen due to both its expression by the vast majority of tumors and its inherent functional involvement in oncogenic transformation. Given these attractive features, the identification of epitopes within human telomerase reverse transcriptase (hTERT), the catalytic subunit of telomerase, has led to the investigation of this tumor antigen as a broadly applicable immunological target. Basic immunological analyses have revealed that hTERT is immunogenic, and initial clinical trials of multiple vaccine formulations have demonstrated that hTERT-specific immune responses can be safely induced in patients and impact on clinical outcomes. Second-generation vaccines are now addressing strategies to enhance cellular immunity against hTERT without toxicity. Findings obtained from these trials will inform the possibility of broad-spectrum cancer immunotherapy or even immunoprevention.
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Affiliation(s)
- Gregory L Beatty
- Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, 551 BRBII/III, 421 Curie Boulevard, Philadelphia, PA 19104, USA
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15
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Ciesielski MJ, Kozbor D, Castanaro CA, Barone TA, Fenstermaker RA. Therapeutic effect of a T helper cell supported CTL response induced by a survivin peptide vaccine against murine cerebral glioma. Cancer Immunol Immunother 2008; 57:1827-35. [PMID: 18438666 DOI: 10.1007/s00262-008-0510-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2008] [Accepted: 03/24/2008] [Indexed: 12/23/2022]
Abstract
Survivin is a tumor-associated antigen (TAA) that has significant potential for use as a cancer vaccine target. To identify survivin epitopes that might serve as targets for CTL-mediated, anti-tumor responses, we evaluated a series of survivin peptides with predicted binding to mouse H2-K(b) and human HLA-A*0201 antigens in peptide-loaded dendritic cell (DC) vaccines. H2-K(b)-positive, C57BL/6 mice were vaccinated using syngeneic, peptide-loaded DC2.4 cells. Splenocytes from vaccinated mice were screened by flow cytometry for binding of dimeric H2-K(b):Ig to peptide-specific CD8+ T cells. Two survivin peptides (SVN(57-64) and SVN(82-89)) generated specific CD8+ T cells. We chose to focus on the SVN(57-64) peptide because that region of the molecule is 100% homologous to human survivin. A larger peptide (SVN(53-67)), containing multiple class I epitopes, and a potential class II ligand, was able to elicit both CD8+ CTL and CD4+ T cell help. We tested the SVN(53-67) 15-mer peptide in a therapeutic model using a peptide-loaded DC vaccine in C57BL/6 mice with survivin-expressing GL261 cerebral gliomas. This vaccine produced significant CTL responses and helper T cell-associated cytokine production, resulting in a significant prolongation of survival. The SVN(53-67) vaccine was significantly more effective than the SVN(57-64) core epitope as a cancer vaccine, emphasizing the potential benefit of incorporating multiple class I epitopes and associated cytokine support within a single peptide.
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Affiliation(s)
- Michael J Ciesielski
- Department of Neurosurgery, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, 14263, USA.
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16
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Chu CS, Kim SH, June CH, Coukos G. Immunotherapy opportunities in ovarian cancer. Expert Rev Anticancer Ther 2008; 8:243-57. [PMID: 18279065 DOI: 10.1586/14737140.8.2.243] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ovarian cancer is responsible for the majority of gynecologic cancer deaths and despite the highest standard of multimodality therapy with surgery and cytotoxic chemotherapy, long-term survival remains low. With compelling evidence that epithelial ovarian cancer is an immunogenic tumor capable of stimulating an antitumor immune response, renewed efforts to develop immune therapies to augment the efficacy of traditional therapies are underway. Current immunotherapies focus on varied modes of antitumor vaccine development, particularly with the use of dendritic cell vaccines, effective methods for adoptive T-cell transfer and combinatorial approaches with immune modulatory therapy subverting natural tolerance mechanisms or boosting effector mechanisms. Additional combinatorial approaches include the use of cytokines and/or chemotherapy with immune therapy.
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Affiliation(s)
- Christina S Chu
- University of Pennsylvania, Division of Gynecologic Oncology, Center for Research on Ovarian Cancer, PA, USA.
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17
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Paulos CM, Suhoski MM, Plesa G, Jiang T, Basu S, Golovina TN, Jiang S, Aqui NA, Powell DJ, Levine BL, Carroll RG, Riley JL, June CH. Adoptive immunotherapy: good habits instilled at youth have long-term benefits. Immunol Res 2008; 42:182-96. [PMID: 18949448 PMCID: PMC3809041 DOI: 10.1007/s12026-008-8070-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Many recent advances in basic cell biology and immunology are a harbinger of progress in adoptive cell therapy (ACT) including (1) the finding that host lymphodepletion enhances engraftment and efficacy, (2) the recognition that in vitro T cell functions may not correlate with in vivo efficacy, and (3) the development of advanced ex vivo culture methods to expand lymphocytes to therapeutically effective numbers. In this article, we focus on the development of artificial antigen presenting cells (aAPCs) in our laboratory and their applicability to augment ACT protocols. We also describe how aAPCs can be used to broaden ACT to treat patients with a wide variety of cancers, chronic infectious diseases, and autoimmune manifestations.
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Affiliation(s)
- Chrystal M. Paulos
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Megan M. Suhoski
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Gabriela Plesa
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Tianying Jiang
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Samik Basu
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Tatiana N. Golovina
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Shuguang Jiang
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Nicole A. Aqui
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, 421 Curie Blvd – 543BRB II/III, Philadelphia, PA 19104, USA
| | - Daniel J. Powell
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - Bruce L. Levine
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, 421 Curie Blvd – 543BRB II/III, Philadelphia, PA 19104, USA
| | - Richard G. Carroll
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA
| | - James L. Riley
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, 421 Curie Blvd – 543BRB II/III, Philadelphia, PA 19104, USA
| | - Carl H. June
- Abramson Family Cancer Research Institute, University of Pennsylvania, BRB II/III, Room 554, 421 Curie Boulevard, Philadelphia, PA 19104-6160, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, 421 Curie Blvd – 543BRB II/III, Philadelphia, PA 19104, USA
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Tuyaerts S, Aerts JL, Corthals J, Neyns B, Heirman C, Breckpot K, Thielemans K, Bonehill A. Current approaches in dendritic cell generation and future implications for cancer immunotherapy. Cancer Immunol Immunother 2007; 56:1513-37. [PMID: 17503040 PMCID: PMC11030932 DOI: 10.1007/s00262-007-0334-z] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2007] [Accepted: 04/17/2007] [Indexed: 02/06/2023]
Abstract
The discovery of tumor-associated antigens, which are either selectively or preferentially expressed by tumors, together with an improved insight in dendritic cell biology illustrating their key function in the immune system, have provided a rationale to initiate dendritic cell-based cancer immunotherapy trials. Nevertheless, dendritic cell vaccination is in an early stage, as methods for preparing tumor antigen presenting dendritic cells and improving their immunostimulatory function are continuously being optimized. In addition, recent improvements in immunomonitoring have emphasized the need for careful design of this part of the trials. Still, valuable proofs-of-principle have been obtained, which favor the use of dendritic cells in subsequent, more standardized clinical trials. Here, we review the recent developments in clinical DC generation, antigen loading methods and immunomonitoring approaches for DC-based trials.
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Affiliation(s)
- Sandra Tuyaerts
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Joeri L. Aerts
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Jurgen Corthals
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Bart Neyns
- Medical Oncology, Oncology Center, University Hospital Brussels, Free University Brussels, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - Carlo Heirman
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
| | - Aude Bonehill
- Laboratory of Molecular and Cellular Therapy, Department of Physiology and Immunology, Medical School of the Vrije Universiteit Brussel, Laarbeeklaan 103/E, 1090 Brussels, Belgium
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19
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Bobisse S, Zanovello P, Rosato A. T-cell receptor gene transfer by lentiviral vectors in adoptive cell therapy. Expert Opin Biol Ther 2007; 7:893-906. [PMID: 17555374 DOI: 10.1517/14712598.7.6.893] [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] [Indexed: 12/31/2022]
Abstract
Adoptive cell therapy can be envisioned as a promising strategy for tumour immunotherapy. However, existing protocols of adoptive cell therapy still require optimisation as many factors, such as specificity, avidity, level of differentiation and amount of transferred T lymphocytes, can influence their immunocompetence and in vivo functionality. In particular, the need to reduce the in vitro expansion phase and to obtain large numbers of tumour-reactive T cells, as a favourable condition for cancer regression, make TCR gene transfer a potentially ideal tool to overcome the limits of adoptive cell therapy strategies. Here, the authors review the state-of-the-art and recent advances in TCR transfer with particular emphasis on lentiviral vector systems. Initial data from preclinical models and recent clinical trials encourage optimisation of a safe, simplified and stable transfer system. In this regard, HIV-based vectors are emerging as good alternative candidates over the most widely used oncoretroviral vectors due to their peculiar molecular features that fit the ideal conditions for donor T cell in vitro manipulation.
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Affiliation(s)
- Sara Bobisse
- University of Padova, Department of Oncology and Surgical Sciences, Padova, Italy
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20
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Giannopoulos K, Schmitt M. Targets and strategies for T-cell based vaccines in patients with B-cell chronic lymphocytic leukemia. Leuk Lymphoma 2007; 47:2028-36. [PMID: 17071473 DOI: 10.1080/10428190600709721] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
T-cell based immunotherapies might be a novel option for the treatment of B-cell chronic lymphocytic leukemia (B-CLL), a disease characterized by a prolonged natural course. Different strategies of active immunotherapy have been tested in vitro to enhance a specific T-cell response against tumor cells and an anti-leukemic effect has been observed in B-CLL patients after allogenic stem cell transplantation. Several antigens have been characterized as tumor/leukemia associated antigens (T/LAAs) in B-CLL with the potential to elicit specific anti-tumor response encompassing idiotype immunoglobulin, oncofetal antigen-immature laminin receptor protein (OFAiLRP), survivin, as well as fibromodulin, the receptor for hyaluronic acid mediated motility (RHAMM/CD168) and the murine double-minute 2 oncoprotein (MDM2). This study presents an overview of possible targets and genetherapeutical maneuvers for future immunotherapies of B-CLL patients and summarizes recent clinical vaccination trials with dendritic cells (DCs) for B-CLL.
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MESH Headings
- Animals
- Antigens, Neoplasm/chemistry
- Antigens, Neoplasm/metabolism
- Cancer Vaccines
- Dendritic Cells/cytology
- Humans
- Immunotherapy/methods
- Killer Cells, Natural/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/prevention & control
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Models, Biological
- Monocytes/metabolism
- T-Lymphocytes/metabolism
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21
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Ciesielski MJ, Apfel L, Barone TA, Castro CA, Weiss TC, Fenstermaker RA. Antitumor effects of a xenogeneic survivin bone marrow derived dendritic cell vaccine against murine GL261 gliomas. Cancer Immunol Immunother 2006; 55:1491-503. [PMID: 16485128 PMCID: PMC11030856 DOI: 10.1007/s00262-006-0138-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Accepted: 12/30/2005] [Indexed: 11/30/2022]
Abstract
Survivin is a member of the inhibitor of apoptosis protein family. Gliomas and many other tumors express survivin at high levels; whereas, normal fully differentiated cells generally do not. Therefore, survivin represents a tumor-specific target for cancer vaccine therapy. It has been shown that it is possible to produce a MHC-I-restricted cellular immunologic response to survivin vaccines. To study differences in immunogenicity between murine and human survivin proteins, we vaccinated C57BL/6 mice with bone marrow dendritic cells (BMDC) transfected with expression vectors containing the murine and human survivin genes. Mice vaccinated with BMDCs expressing a truncated human survivin protein developed cytotoxic T lymphocyte to subcutaneous GL261 glioma cells and exhibited prolonged tumor-free survival compared to mice vaccinated with BMDCs transfected with vector alone (P<0.01). While mice challenged with intracerebral GL261 cells had increased survival, no cures were observed. In contrast, vaccinated mice that fully resisted subcutaneous tumor challenge were rendered resistant to intracerebral GL261 re-challenge. BMDCs transfected with the full-length human survivin molecule were significantly more effective at prolonging survival than BMDCs expressing the full-length murine survivin gene (P=0.0175). Therefore, xenogeneic differences between human and murine sequences might be exploited to develop more immunogenic tumor vaccines.
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Affiliation(s)
- Michael J Ciesielski
- Departments of Neurosurgery and Immunology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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22
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Rosato A, Pivetta M, Parenti A, Iaderosa GA, Zoso A, Milan G, Mandruzzato S, Del Bianco P, Ruol A, Zaninotto G, Zanovello P. Survivin in esophageal cancer: An accurate prognostic marker for squamous cell carcinoma but not adenocarcinoma. Int J Cancer 2006; 119:1717-22. [PMID: 16671090 DOI: 10.1002/ijc.21923] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We quantified the expression of survivin, both as mRNA in real-time PCR and protein in immunohistochemistry, in tumor samples of 112 patients with esophageal cancer (56 squamous cell carcinomas and 56 adenocarcinomas). Overall survival of squamous cell carcinoma patients with high survivin mRNA levels was significantly less than that of patients with low survivin mRNA levels (p = 0.0033). Distribution pattern of survivin (nuclear vs. cytoplasmic or mixed) was not correlated to survival, while the extent of immunostaining was significantly correlated to survivin mRNA values (p = 0.016) and had prognostic relevance in univariate analysis (p = 0.0012). Cox's proportional-hazard regression model showed that tumor survivin expression in esophageal squamous cell carcinoma was the most important prognostic factor, independent of tumor stage and other histopathological factors, both as mRNA relative value (p = 0.0259) and protein immunostaining (p = 0.0147). In esophageal adenocarcinoma, survivin expression and pattern of distribution had no prognostic relevance. Thus, quantifying survivin expression provides a prognostic marker only for esophageal squamous tumors.
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Affiliation(s)
- Antonio Rosato
- Department of Oncology and Surgical Sciences, University of Padova, Padova, Italy
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23
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Liu G, Black KL, Yu JS. Sensitization of malignant glioma to chemotherapy through dendritic cell vaccination. Expert Rev Vaccines 2006; 5:233-47. [PMID: 16608423 DOI: 10.1586/14760584.5.2.233] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Drug resistance represents a major cause of chemotherapy failure in patients with cancer. The characterization of the molecular pathways involved in drug resistance has provided new targets to circumvent or reverse chemotherapy resistance. Many of these target proteins are often overexpressed in human glioma and have been identified as tumor antigens, which implicate the development of immunotherapy as a therapeutic strategy. Dendritic cells (DCs) are the most potent antigen-presenting cells of the immune system and have been demonstrated to stimulate antibody and cell-mediated immune responses against tumor-associated antigens. Ex vivo-generated and tumor antigen-loaded DCs have been successfully introduced to clinical vaccination protocols, which have proven to be feasible and effective in some glioma patients. Most importantly, immunotherapy followed by chemotherapy could significantly increase 2-year survival in malignant glioma patients, which obviously demonstrates that DC vaccination could increase the sensitivity of tumor cells to chemotherapy. This review focuses on recent advances in the identification of tumor-associated antigen in glioma, as well as novel insights into their biological function related to drug resistance. These insights may provide the rationale for a novel strategy of a DC cancer vaccine that sensitizes tumor cells to chemotherapy. In addition, the current research status and the future direction of a DC-based vaccine to treat glioma in animal models and clinical trials will also be discussed.
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Affiliation(s)
- Gentao Liu
- Maxine Dunitz Neurosurgical Institute, Cedars-Sinai Medical Center, and Division of Hematology/Oncology, Cedars-Sinai Medical Center/David Geffen Schol of Medicine at UCLA, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
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24
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Mayr C, Bund D, Schlee M, Bamberger M, Kofler DM, Hallek M, Wendtner CM. MDM2 is recognized as a tumor-associated antigen in chronic lymphocytic leukemia by CD8+ autologous T lymphocytes. Exp Hematol 2006; 34:44-53. [PMID: 16413390 DOI: 10.1016/j.exphem.2005.09.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2005] [Revised: 09/26/2005] [Accepted: 09/29/2005] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Tumor-associated antigens (TAA) are the basis for antigen-specific immunotherapy. The human homolog of the murine double-minute 2 oncoprotein (MDM2) is a putative TAA because it is overexpressed in several malignancies, including chronic lymphocytic leukemia (CLL) cells compared with normal B lymphocytes. PATIENTS AND METHODS Autologous, MDM2-specific human leukocyte antigen (HLA)-A2-restricted T cells were identified using interferon (IFN)-gamma-ELISPOT assays and HLA-A2/dimer-peptide staining after 4 weeks of in vitro culture. RESULTS Using native CLL cells as antigen-presenting cells (APCs), we demonstrate the generation of MDM2-specific T cells in 7/12 CLL patients that recognized specifically the MDM2-derived peptide MDM2(81-88) bound to HLA-A2-dimers while they were inactive against an unrelated MAGE-3 peptide (p = 0.002). After 4 weeks, up to 32.3% of the expanded CD8(+) T cells specifically recognized MDM2(81-88) by HLA-A2-dimer/peptide staining and up to 0.9% of all T cells expanded reacted specifically against this MDM2-derived peptide in the IFN-gamma-ELISPOT assay. If T cells were not expandable using native CLL cells as APC, leukemic cells were stimulated with CD40-ligand to increase the antigen-presenting capacity. This resulted in successful generation of MDM2-specific T cells in three of five remaining cases tested. Additionally, the factor that correlated best with successful generation of antigen-specific T cells in CLL patients was the ability of APCs to secrete IFN-gamma upon stimulation. CONCLUSION In summary, MDM2(81-88) was shown for the first time in humans to elicit a functional autologous immune response. MDM2 was demonstrated to be naturally processed and presented as TAA in primary human CLL cells enabling expansion of functional autologous tumor-specific T cells.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antigen Presentation/immunology
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- B-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/immunology
- Cells, Cultured
- Epitopes/immunology
- Female
- Gene Expression Regulation, Leukemic/genetics
- Gene Expression Regulation, Leukemic/immunology
- HLA-A Antigens/immunology
- HLA-A2 Antigen
- Humans
- In Vitro Techniques
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Male
- Middle Aged
- Proto-Oncogene Proteins c-mdm2/genetics
- Proto-Oncogene Proteins c-mdm2/immunology
- RNA, Messenger/genetics
- RNA, Messenger/immunology
- Tumor Cells, Cultured
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Affiliation(s)
- Christine Mayr
- KKG Gene Therapy, GSF-National Research Center for Environment and Health, Munich, Germany
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25
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Guo H, Hao J, Wu C, Fang DC. Construction of virus-like particle peptide-nucleic acid vaccine of human telomerase reverse transcriptase and identification of its immunogenicity. Shijie Huaren Xiaohua Zazhi 2005; 13:2645-2649. [DOI: 10.11569/wcjd.v13.i22.2645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To construct a novel virus-like particle peptide-nucleic acid vaccine (VPNV) of human telomerase reverse transcriptase (hTERT), and to identify its imm-unogenicity and transfection activity.
METHODS: Cationic antigenic peptide K18P9 was syn-thesized and purified, then human GM-CSF and TERT gene were cloned into eukaryotic expression vector pTCAE. The peptide was combined with the nucleic acid vaccine to make VPNV, which were transfected into eukaryotic cells COS-7. The immunogenicity of hGM-CSF and hTERT were detected by enzyme linked imm-unosorbent assay (ELISA) and Western blotting.
RESULTS: Restriction enzyme digestion and sequen-ce analysis confirmed that hGM-CSF and hTERT were cloned into pTCAE and the nucleic acid vaccine of hTERT gene was constructed successfully. Under ele-ctronic microscopy, nucleic acid was packaged by pep-tide, forming into virus-like particle. Furthermore, the transfection activity of VPNV and the immunogenic-ity of hGM-CSF and hTERT could reach 78.5% as co-mpared with the positive controls.
CONCLUSION: The VPNV is successfully constructed, and its immunogenicity is also identified.
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26
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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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27
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Meier A, Reker S, Svane IM, Holten-Andersen L, Becker JC, Søndergaard I, Andersen MH, thor Straten P. Spontaneous T-cell responses against peptides derived from the Taxol resistance-associated gene-3 (TRAG-3) protein in cancer patients. Cancer Immunol Immunother 2005; 54:219-28. [PMID: 15580499 PMCID: PMC11032900 DOI: 10.1007/s00262-004-0578-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2004] [Accepted: 06/12/2004] [Indexed: 02/04/2023]
Abstract
Expression of the cancer-testis antigen Taxol resistance-associated gene-3 (TRAG-3) protein is associated with acquired paclitaxel (Taxol) resistance, and is expressed in various cancer types; e.g., breast cancer, leukemia, and melanoma. Thus, TRAG-3 represents an attractive target for immunotherapy of cancer. To identify HLA-A*02.01-restricted epitopes from TRAG-3, we screened cancer patients for spontaneous cytotoxic T-cell responses against TRAG-3-derived peptides. The TRAG-3 protein sequence was screened for 9mer and 10mer peptides possessing HLA-A*02.01-binding motifs. Of 12 potential binders, 9 peptides were indeed capable of binding to the HLA-A*02.01 molecule, with binding affinities ranging from strong to weak binders. Subsequently, lymphocytes from cancer patients (9 breast cancer patients, 12 melanoma patients, and 13 patients with hematopoietic malignancies) were analyzed for spontaneous reactivity against the panel of peptides by ELISpot assay. Spontaneous immune responses were detected against 8 epitope candidates in 7 of 9 breast cancer patients, 7 of 12 melanoma patients, and 5 of 13 patients with hematopoietic malignancies. In several cases, TRAG-3-specific CTL responses were scattered over several epitopes. Hence, no immunodominance of any single peptide was observed. Furthermore, single-peptide responses were detected in 2 of 12 healthy HLA-A2(+) donors, but no responses were detectable in 9 HLA-A2(-) healthy donors or 4 HLA-A2(-) melanoma patients. The identified HLA-A*02.01-restricted TRAG-3-derived epitopes are targets for spontaneous immune responses in breast cancer, hematopoietic cancer, and melanoma patients. Hence, these epitopes represent potential target structures for future therapeutic vaccinations against cancer, possibly appropriate for strategies that combine vaccination and chemotherapy; i.e., paclitaxel treatment.
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Affiliation(s)
- Anders Meier
- Tumor Immunology Group, Danish Cancer Society, Institute for Cancer Biology, Strandboulevarden 49, 2100 Copenhagen, Denmark
| | - Sine Reker
- Tumor Immunology Group, Danish Cancer Society, Institute for Cancer Biology, Strandboulevarden 49, 2100 Copenhagen, Denmark
| | - Inge Marie Svane
- Department of Oncology, Herlev University Hospital, 2630 Herlev, Denmark
| | - Lars Holten-Andersen
- Tumor Immunology Group, Danish Cancer Society, Institute for Cancer Biology, Strandboulevarden 49, 2100 Copenhagen, Denmark
| | - Jürgen C. Becker
- Department of Dermatology, University of Würzburg, Würzburg, Germany
| | - Ib Søndergaard
- Biocentrum, Technical University of Denmark, Copenhagen, Denmark
| | - Mads Hald Andersen
- Tumor Immunology Group, Danish Cancer Society, Institute for Cancer Biology, Strandboulevarden 49, 2100 Copenhagen, Denmark
| | - Per thor Straten
- Tumor Immunology Group, Danish Cancer Society, Institute for Cancer Biology, Strandboulevarden 49, 2100 Copenhagen, Denmark
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28
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Abstract
Although tumor vaccines have been studied for decades, there is no vaccine approved as a clinical product. Nevertheless, recent advances in immunology and tumor biology justify a renewed interest. First, cancer cells express many antigens that can be recognized by the immune system, some with high tumor selectivity. Second, knowledge about immune regulation, including the importance of costimulatory signals, has been successfully applied to the studies of tumors. Third, mechanisms of how tumors can escape from immunological control have been identified, setting the stage to discover agents to decrease their impact. Rejection of established mouse tumors has been accomplished as a result of therapeutic tumor vaccination and there are encouraging findings from vaccine trials in humans.
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29
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Saff RR, Spanjaard ES, Hohlbaum AM, Marshak-Rothstein A. Activation-induced cell death limits effector function of CD4 tumor-specific T cells. THE JOURNAL OF IMMUNOLOGY 2004; 172:6598-606. [PMID: 15153474 DOI: 10.4049/jimmunol.172.11.6598] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A number of studies have documented a critical role for tumor-specific CD4(+) cells in the augmentation of immunotherapeutic effector mechanisms. However, in the context of an extensive tumor burden, chronic stimulation of such CD4(+) T cells often leads to the up-regulation of both Fas and Fas ligand, and coexpression of these molecules can potentially result in activation-induced cell death and the subsequent loss of effector activity. To evaluate the importance of T cell persistence in an experimental model of immunotherapy, we used DO11 Th1 cells from wild-type, Fas-deficient, and Fas ligand-deficient mice as effector populations specific for a model tumor Ag consisting of an OVA-derived transmembrane fusion protein. We found that the prolonged survival of Fas-deficient DO11 Th1 cells led to a more sustained tumor-specific response both in vitro and in vivo. Importantly, both Fas- and Fas ligand-deficient Th1 cells delayed tumor growth and cause regression of established tumors more effectively than wild-type Th1 cells, indicating that resistance to activation-induced cell death significantly enhances T cell effector activity.
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Affiliation(s)
- Rebecca R Saff
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
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30
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Rieger MA, Ebner R, Bell DR, Kiessling A, Rohayem J, Schmitz M, Temme A, Rieber EP, Weigle B. Identification of a novel mammary-restricted cytochrome P450, CYP4Z1, with overexpression in breast carcinoma. Cancer Res 2004; 64:2357-64. [PMID: 15059886 DOI: 10.1158/0008-5472.can-03-0849] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
By screening a transcriptome database for expressed sequence tags that are specifically expressed in mammary gland and breast carcinoma, we identified a new human cytochrome P450 (CYP), termed CYP4Z1. The cDNA was cloned from the breast carcinoma line SK-BR-3 and codes for a protein of 505 amino acids. Moreover, a transcribed pseudogene CYP4Z2P that codes for a truncated CYP protein (340 amino acids) with 96% identity to CYP4Z1 was found in SK-BR-3. CYP4Z1 and CYP4Z2P genes consisting of 12 exons are localized in head-to-head orientation on chromosome 1p33. Tissue-specific expression was investigated using real-time reverse transcription PCR with normalized cDNA from 18 different human tissues. CYP4Z1 mRNA was preferentially detected in breast carcinoma tissue and mammary gland, whereas only marginal expression was found in all other tested tissues. Investigation of cDNA pairs from tumor/normal tissues obtained from 241 patients, including 50 breast carcinomas, confirmed the breast-restricted expression and showed a clear overexpression in 52% of breast cancer samples. The expression profile of CYP4Z2P was similar to that of CYP4Z1 with preference in breast carcinoma and mammary gland but a lower expression level in general. Immunoblot analyses with a specific antiserum for CYP4Z1 clearly demonstrated protein expression in mammary gland and breast carcinoma tissue specimens as well as in CYP4Z1-transduced cell lines. Confocal laser-scanning microscopy of MCF-7 cells transfected with a fluorescent fusion protein CYP4Z1-enhanced green fluorescent protein and a subcellular fractionation showed localization to the endoplasmic reticulum as an integral membrane protein concordant for microsomal CYP enzymes.
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Affiliation(s)
- Michael A Rieger
- Institute of Immunology, Medical Faculty Carl Gustav Carus, Technical University of Dresden, Dresden, Germany
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31
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Leung DW, Tompkins C, Brewer J, Ball A, Coon M, Morris V, Waggoner D, Singer JW. Phospholipase C delta-4 overexpression upregulates ErbB1/2 expression, Erk signaling pathway, and proliferation in MCF-7 cells. Mol Cancer 2004; 3:15. [PMID: 15140260 PMCID: PMC420486 DOI: 10.1186/1476-4598-3-15] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2003] [Accepted: 05/13/2004] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The expression of the rodent phosphoinositide-specific phospholipase C delta-4 (PLCdelta4) has been found to be elevated upon mitogenic stimulation and expression analysis have linked the upregulation of PLCdelta4 expression with rapid proliferation in certain rat transformed cell lines. The human homologue of PLCdelta4 has not been extensively characterized. Accordingly, we investigate the effects of overexpression of human PLCdelta4 on cell signaling and proliferation in this study. RESULTS The cDNA for human PLCdelta4 has been isolated and expressed ectopically in breast cancer MCF-7 cells. Overexpression of PLCdelta4 selectively activates protein kinase C-phi and upregulates the expression of epidermal growth factor receptors EGFR/erbB1 and HER2/erbB2, leading to constitutive activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) pathway in MCF-7 cells. MCF-7 cells stably expressing PLCdelta4 demonstrates several phenotypes of transformation, such as rapid proliferation in low serum, formation of colonies in soft agar, and capacity to form densely packed spheroids in low-attachment plates. The growth signaling responses induced by PLCdelta4 are not reversible by siRNA. CONCLUSION Overexpression or dysregulated expression of PLCdelta4 may initiate oncogenesis in certain tissues through upregulation of ErbB expression and activation of ERK pathway. Since the growth responses induced by PLCdelta4 are not reversible, PLCdelta4 itself is not a suitable drug target, but enzymes in pathways activated by PLCdelta4 are potential therapeutic targets for oncogenic intervention.
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Affiliation(s)
- David W Leung
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Chris Tompkins
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Jim Brewer
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Alexey Ball
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Mike Coon
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Valerie Morris
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - David Waggoner
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
| | - Jack W Singer
- Cell Therapeutics, Inc., 201 Elliott Ave., W., Seattle, WA 98119, U.S.A
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32
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McFadyen MCE, Melvin WT, Murray GI. Cytochrome P450 enzymes: Novel options for cancer therapeutics. Mol Cancer Ther 2004. [DOI: 10.1158/1535-7163.363.3.3] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Abstract
The concept of overexpression of individual forms of cytochrome P450 enzymes in tumor cells is now becoming well recognized. Indeed, a growing body of research highlights the overexpression of P450s, particularly CYP1B1, in tumor cells as representing novel targets for anticancer therapy. The purpose of this review is to outline the novel therapeutic options and opportunities arising from both enhanced endogenous expression of cytochrome P450 in tumors and cytochrome P450-mediated gene therapy.
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Affiliation(s)
| | - William T. Melvin
- 2Molecular and Cell Biology, University of Aberdeen, Aberdeen, United Kingdom
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33
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Cunto-Amesty G, Monzavi-Karbassi B, Luo P, Jousheghany F, Kieber-Emmons T. Strategies in cancer vaccines development. Int J Parasitol 2003; 33:597-613. [PMID: 12782058 DOI: 10.1016/s0020-7519(03)00054-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The recent definition of tumour-specific immunity in cancer patients and the identification of tumour-associated antigens have generated renewed enthusiasm for the application of immune-based therapies for the treatment of malignancies. Recent developments in cancer vaccines have also been based on an improved understanding of the cellular interactions required to induce a specific anti-tumour immune response. Consequently, a number of cancer vaccines have entered clinical trials. Targeting broad-spectrum tumour-associated antigens has emerged as a strategy to lower the risk of tumour escape due to the loss of specific nominal antigen. Amongst the most challenging of tumour-associated antigens to which to target in active specific immunotherapy applications are carbohydrate antigens. As carbohydrates are intrinsically T-cell-independent antigens, more novel approaches are perhaps needed to drive specific-T-cell-dependent immune responses to carbohydrate antigens. In this context peptide mimetics of core structures of tumour-associated carbohydrate antigens might be developed to augment immune responses to these broad-spectrum antigens.
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Affiliation(s)
- Gina Cunto-Amesty
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
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