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Hawlina S, Zorec R, Chowdhury HH. Potential of Personalized Dendritic Cell-Based Immunohybridoma Vaccines to Treat Prostate Cancer. Life (Basel) 2023; 13:1498. [PMID: 37511873 PMCID: PMC10382052 DOI: 10.3390/life13071498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Prostate cancer (PCa) is the most commonly diagnosed cancer and the second most common cause of death due to cancer. About 30% of patients with PCa who have been castrated develop a castration-resistant form of the disease (CRPC), which is incurable. In the last decade, new treatments that control the disease have emerged, slowing progression and spread and prolonging survival while maintaining the quality of life. These include immunotherapies; however, we do not yet know the optimal combination and sequence of these therapies with the standard ones. All therapies are not always suitable for every patient due to co-morbidities or adverse effects of therapies or both, so there is an urgent need for further work on new therapeutic options. Advances in cancer immunotherapy with an immune checkpoint inhibition mechanism (e.g., ipilimumab, an anti-CTLA-4 inhibitor) have not shown a survival benefit in patients with CRPC. Other immunological approaches have also not given clear results, which has indirectly prevented breakthrough for this type of therapeutic strategy into clinical use. Currently, the only approved form of immunotherapy for patients with CRPC is a cell-based medicine, but it is only available to patients in some parts of the world. Based on what was gained from recently completed clinical research on immunotherapy with dendritic cell-based immunohybridomas, the aHyC dendritic cell vaccine for patients with CRPC, we highlight the current status and possible alternatives that should be considered in the future.
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Affiliation(s)
- Simon Hawlina
- Clinical Department of Urology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Department of Surgery, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Robert Zorec
- Laboratory of Cell Engineering, Celica Biomedical, 1000 Ljubljana, Slovenia
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Helena H Chowdhury
- Laboratory of Cell Engineering, Celica Biomedical, 1000 Ljubljana, Slovenia
- Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
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Lokhov PG, Lichtenberg S, Balashova EE. Changing Landscape of Cancer Vaccines-Novel Proteomics Platform for New Antigen Compositions. Int J Mol Sci 2022; 23:4401. [PMID: 35457221 PMCID: PMC9029553 DOI: 10.3390/ijms23084401] [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: 02/23/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022] Open
Abstract
The creation of cancer vaccines is a constant priority for research and biotechnology. Therefore, the emergence of any new technology in this field is a significant event, especially because previous technologies have not yielded results. Recently, the development of a cancer vaccine has been complemented by a new proteomics technology platform that allows the creation of antigen compositions known as antigenic essences. Antigenic essence comprises a target fraction of cellular antigens, the composition of which is precisely controlled by peptide mass spectrometry and compared to the proteomic footprint of the target cells to ensure similarity. This proteomics platform offers potential for a massive upgrade of conventional cellular cancer vaccines. Antigenic essences have the same mechanism of action, but without the disadvantages, and with notable advantages such as precise targeting of the immune response, safety, controlled composition, improved immunogenicity, addressed MHC restriction, and extended range of vaccination doses. The present paper calls attention to this novel platform, stimulates discussion of the role of antigenic essence in vaccine development, and consolidates academic science with biotech capabilities. A brief description of the platform, list of cellular cancer vaccines suitable for the upgrade, main recommendations, limitations, and legal and ethical aspects of vaccine upgrade are reported here.
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Affiliation(s)
- Petr G. Lokhov
- Biobohemia, Inc., 1 Broadway, 14th Floor, Cambridge, MA 02142, USA; (S.L.); (E.E.B.)
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia
| | - Steven Lichtenberg
- Biobohemia, Inc., 1 Broadway, 14th Floor, Cambridge, MA 02142, USA; (S.L.); (E.E.B.)
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia
| | - Elena E. Balashova
- Biobohemia, Inc., 1 Broadway, 14th Floor, Cambridge, MA 02142, USA; (S.L.); (E.E.B.)
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Street, 119121 Moscow, Russia
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3
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Liu Y, Mikrani R, Xie D, Wazir J, Shrestha S, Ullah R, Baig MMFA, Ahmed A, Srivastava PK, Thapa KB, Zhou X. Chronic prostatitis/chronic pelvic pain syndrome and prostate cancer: study of immune cells and cytokines. Fundam Clin Pharmacol 2019; 34:160-172. [DOI: 10.1111/fcp.12517] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 09/30/2019] [Accepted: 10/22/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Yuqian Liu
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Reyaj Mikrani
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Dianyou Xie
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Junaid Wazir
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Sajan Shrestha
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Rahat Ullah
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Mirza Muhammad Faran Ashraf Baig
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Abrar Ahmed
- School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 China
| | | | - Kedar Bahadur Thapa
- Institute of Advanced Materials Nanjing Tech University Nanjing 211816 China
| | - Xiaohui Zhou
- Department of Clinical Pharmacy School of Basic Medicine and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
- Department of Surgery Zhongda Hospital Affiliated to Southeast University Nanjing Jiangsu 210017 China
- Department of Surgery Nanjing Shuiximen Hospital Nanjing Jiangsu 210017 China
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4
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Doersch KM, Moses KA, Zimmer WE. Synergistic immunologic targets for the treatment of prostate cancer. Exp Biol Med (Maywood) 2016; 241:1900-1910. [PMID: 27444149 PMCID: PMC5068457 DOI: 10.1177/1535370216660212] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Prostate cancer is a common disease and, while detection and treatment have advanced, it remains a significant cause of morbidity and mortality in men. Research suggests significant involvement of the immune system in the pathogenesis and progression of prostate cancer, indicating that immunologic therapies may benefit patients. Two immunologic factors, interleukin-2 and transforming growth factor-β, may be especially attractive therapeutic targets for prostate cancer. Specifically, an increase in interleukin-2 signaling and a decrease in transforming growth factor-β signaling might help improve immunologic recognition and targeting of tumor cells. The purpose of this review is to highlight the evidence that interleukin-2 and blockade of transforming growth factor-β could be used to target prostate cancer based on current understanding of immune function in the context of prostate cancer. Additionally, current treatments related to these two factors for prostate and other cancers will be used to strengthen the argument for this strategy.
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Affiliation(s)
- Karen M Doersch
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Temple, TX 76504, USA
| | - Kelvin A Moses
- Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Warren E Zimmer
- Department of Medical Physiology, Texas A&M Health Science Center, College Station, TX 77843, USA
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Kursunel MA, Esendagli G. The untold story of IFN-γ in cancer biology. Cytokine Growth Factor Rev 2016; 31:73-81. [DOI: 10.1016/j.cytogfr.2016.07.005] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/07/2016] [Accepted: 07/07/2016] [Indexed: 12/21/2022]
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Srivatsan S, Patel JM, Bozeman EN, Imasuen IE, He S, Daniels D, Selvaraj P. Allogeneic tumor cell vaccines: the promise and limitations in clinical trials. Hum Vaccin Immunother 2013; 10:52-63. [PMID: 24064957 DOI: 10.4161/hv.26568] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The high mortality rate associated with cancer and its resistance to conventional treatments such as radiation and chemotherapy has led to the investigation of a variety of anti-cancer immunotherapies. The development of novel immunotherapies has been bolstered by the discovery of tumor-associated antigens (TAAs), through gene sequencing and proteomics. One such immunotherapy employs established allogeneic human cancer cell lines to induce antitumor immunity in patients through TAA presentation. Allogeneic cancer immunotherapies are desirable in a clinical setting due to their ease of production and availability. This review aims to summarize clinical trials of allogeneic tumor immunotherapies in various cancer types. To date, clinical trials have shown limited success due potentially to extensive degrees of inter- and intra-tumoral heterogeneity found among cancer patients. However, these clinical results provide guidance for the rational design and creation of more effective allogeneic tumor immunotherapies for use as monotherapies or in combination with other therapies.
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Affiliation(s)
- Sanjay Srivatsan
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Jaina M Patel
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Erica N Bozeman
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Imade E Imasuen
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Sara He
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Danielle Daniels
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
| | - Periasamy Selvaraj
- Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta, GA USA
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Flörcken A, Kopp J, van Lessen A, Movassaghi K, Takvorian A, Jöhrens K, Möbs M, Schönemann C, Sawitzki B, Egerer K, Dörken B, Pezzutto A, Westermann J. Allogeneic partially HLA-matched dendritic cells pulsed with autologous tumor cell lysate as a vaccine in metastatic renal cell cancer: a clinical phase I/II study. Hum Vaccin Immunother 2013; 9:1217-27. [PMID: 23458999 DOI: 10.4161/hv.24149] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Multi-kinase inhibitors have been established for the treatment of advanced renal cell cancer, but long-term results are still disappointing and immunotherapeutic approaches remain an interesting experimental option particularly in patients with a low tumor burden. DC are crucial for antigen-specific MHC-restricted T cell immunity. Furthermore, allogeneic HLA-molecules pose a strong immunogenic signal and may help to induce tumor-specific T cell responses. In this phase I/II trial, 7 patients with histologically confirmed progressive metastatic RCC were immunized repetitively with 1 × 10 (7) allogeneic partially HLA-matched DC pulsed with autologous tumor lysate following a schedule of 8 vaccinations over 20 weeks. Patients also received 3 Mio IE IL-2 s.c. once daily starting in week 4. Primary endpoints of the study were feasibility and safety. Secondary endpoints were immunological and clinical responses. Vaccination was feasible and safe with no severe toxicity being observed. No objective response could be documented. However, while all patients had documented progress at study entry, 29% of the patients showed SD throughout the study with a mean TTP of 24.6 weeks (range 5 to 96 weeks). In 3/7 patients, TH1-polarized immune responses against RCC-associated antigens were observed. In one patient showing a minimal clinical response and a TTP of 96 weeks, clonally proliferated T cells against yet undefined antigens were induced by the vaccine. Vaccination with tumor antigen loaded DC remains an interesting experimental approach, but should rather be applied in the situation of minimal residual disease after systemic therapy. Additional depletion of regulatory cells might be a promising strategy.
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Affiliation(s)
- Anne Flörcken
- Department of Hematology; Oncology, and Tumor Immunology; Charité University Medicine Berlin; Campus Virchow- Klinikum; Berlin, Germany; Department of Hematology; Oncology, and Tumor Immunology; Charité University Medicine Berlin; Campus Benjamin Franklin; Berlin, Germany
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Abstract
Devitalized tumor cells either autologous or allogeneic have been used as anti-cancer vaccines with the purpose of facilitating the induction of an immune response able to destroy growing tumor cells since the identification of tumor antigens was deemed not to be necessary, particularly in the autologous system. Such vaccines were tested first in animal models and then in the clinics as unmodified tumor cells or after insertion of genes coding for factors known to increase the immune response against tumors. These vaccines were usually given by subcutaneous injections along with different immunological adjuvants. Such immunization approaches were found to be effective in mice when carried out in a tumor preventive setting but significantly less in the therapeutic context, that is, in the presence of an established tumor. By analyzing several clinical trials of vaccination using either autologous or allogeneic unmodified and gene-modified tumor cells published in the last 10 to 15 years, we conclude for a lack of sufficient evidence for efficacy of this strategy in inducing both a strong immune response and a therapeutic response. A potential variant of this strategy is the direct intratumoral injection of immunostimulatory genes delivered by vectors in vivo. But even this approach failed to provide a statistically significant clinical benefit for the cancer patients.We also point out the inherent drawbacks of the tumor cell-based vaccine strategy that include (a) a limited frequency by which human tumor lines can be obtained from clinical samples, (b) the low number of available cells for vaccination, (c) the release of immune-suppressive factors by tumor cells, and (d) the cost and time necessary for standardization and collecting/expanding a number of cells according to the approved regulatory requirements. Thus, taking into consideration the new developments in cancer vaccines, we believe that tumor cell-based vaccines should be dismissed as anti-cancer vaccines unless a clear benefit could be demonstrated by the few ongoing trials of combination with new immunomodulating reagents (eg, anti-CTLA4, PD-1, chemotherapy).
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9
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Di Lorenzo G, Buonerba C, Kantoff PW. Immunotherapy for the treatment of prostate cancer. Nat Rev Clin Oncol 2011; 8:551-61. [DOI: 10.1038/nrclinonc.2011.72] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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Detchokul S, Frauman AG. Recent developments in prostate cancer biomarker research: therapeutic implications. Br J Clin Pharmacol 2011; 71:157-74. [PMID: 21219396 DOI: 10.1111/j.1365-2125.2010.03766.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This review aims to present an overview of recent clinical trials targeting biomarkers in advanced prostate cancer. We searched ClinicalTrials.gov for early phase clinical trials on treatments of prostate cancer that have been recently completed, are ongoing or are actively recruiting participants. Drug targets and their mechanism of actions were assessed and summarized. Trials were categorized according to prostate cancer biomarkers that have potential as therapeutic targets. A total of 19 new therapeutic agents for the treatment of prostate cancer are included in this review. Trials are summarized according to the targeted biomarkers and are categorized into five therapeutic approaches: prostate cancer vaccine, epigenetic therapy, pro-apoptotic agents, prostate cancer antibodies and anti-angiogenesis approach. Some of the therapeutic agents reviewed showed promising results, warranting further investigation in late phase clinical trials. Recent novel prostate cancer biomarkers that made it through clinical trials and their relevance as drug targets are summarized. This review emphasizes the importance of specific prostate cancer biomarkers and their potentials as targets of the disease. Some clinical trials of targeted treatments in prostate cancer show promising results. Better understanding of disease mechanisms should potentially lead to more specific treatments for individual patients.
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Affiliation(s)
- Sujitra Detchokul
- Clinical Pharmacology and Therapeutics Unit, Department of Medicine (Austin Health/Northern Health), the University of Melbourne, Heidelberg, Victoria 3084, Australia
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11
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Westermann J, Flörcken A, Willimsky G, van Lessen A, Kopp J, Takvorian A, Jöhrens K, Lukowsky A, Schönemann C, Sawitzki B, Pohla H, Frank R, Dörken B, Schendel DJ, Blankenstein T, Pezzutto A. Allogeneic gene-modified tumor cells (RCC-26/IL-7/CD80) as a vaccine in patients with metastatic renal cell cancer: a clinical phase-I study. Gene Ther 2010; 18:354-63. [DOI: 10.1038/gt.2010.143] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Buchner A, Pohla H, Willimsky G, Frankenberger B, Frank R, Baur-Melnyk A, Siebels M, Stief CG, Hofstetter A, Kopp J, Pezzutto A, Blankenstein T, Oberneder R, Schendel DJ. Phase 1 trial of allogeneic gene-modified tumor cell vaccine RCC-26/CD80/IL-2 in patients with metastatic renal cell carcinoma. Hum Gene Ther 2010; 21:285-97. [PMID: 19788391 DOI: 10.1089/hum.2008.192] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Preclinical studies showed that the allogeneic tumor cell line RCC-26 displayed natural immunogenic potential that was enhanced through expression of CD80 costimulatory molecules and secretion of interleukin-2. Here we report the study of RCC-26/CD80/IL-2 cells in a phase 1 vaccine trial of renal cell carcinoma patients with metastatic disease (mRCC). Fifteen patients of the HLA-A*0201 allotype, with at least one metastatic lesion, were included. Irradiated vaccine cells were applied in increasing doses of 2.5, 10, and 40 x 10(6) cells over 22 weeks. Primary study parameters included safety and toxicity. Sequential blood samples were analyzed by interferon-gamma enzyme-linked immunospot assays to detect tumor antigen-associated (TAA) effector cells. The vaccine was well tolerated and the designated vaccination course was completed in 9 of 15 patients. Neither vaccine-induced autoimmunity nor systemic side effects were observed. Delayed-type hypersensitivity skin reactions were detected in 11 of 12 evaluated patients and were particularly strong in patients with prolonged survival. In parallel, vaccine-induced immune responses against vaccine or overexpressed TAA were detected in 9 of 12 evaluated patients. No tumor regressions occurred according to RECIST (Response Evaluation Criteria in Solid Tumors) criteria; however, median time to progression was 5.3 months and median survival was 15.6 months, indicating substantial disease stabilization. We conclude that vaccine use was safe and feasible in mRCC. Clinical benefits were limited in these patients with advanced disease; however, immune monitoring revealed vaccine-induced responses against multiple TAAs in the majority of study participants. These results suggest that this vaccine could be useful in combination therapies and/or minimal residual disease.
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Affiliation(s)
- Alexander Buchner
- Department of Urology, Ludwig Maximilian University of Munich, 81377 Munich, Germany
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Makinde AY, Rizvi A, Crapo JD, Pearlstein RD, Slater JM, Gridley DS. A Metalloporphyrin Antioxidant Alters Cytokine Responses after Irradiation in a Prostate Tumor Model. Radiat Res 2010; 173:441-52. [DOI: 10.1667/rr1765.1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Brill TH, Kübler HR, Pohla H, Buchner A, Fend F, Schuster T, van Randenborgh H, Paul R, Kummer T, Plank C, Eisele B, Breul J, Hartung R, Schendel DJ, Gansbacher B. Therapeutic Vaccination with an Interleukin-2–Interferon-γ-Secreting Allogeneic Tumor Vaccine in Patients with Progressive Castration-Resistant Prostate Cancer: A Phase I/II Trial. Hum Gene Ther 2009; 20:1641-51. [DOI: 10.1089/hum.2009.101] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Thomas H. Brill
- Institut für Experimentelle Onkologie und Therapieforschung, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Hubert R. Kübler
- Urologische Klinik und Poliklinik, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Heike Pohla
- Laboratory of Tumor Immunology, LIFE Center University Clinic–Grosshadern, Ludwig Maximilians University, 81377 Munich, Germany
- Institute of Molecular Immunology and Clinical Cooperation Group “Immune Monitoring,” Helmholtz Zentrum München, German Research Center for Environmental Health, 81377 Munich, Germany
| | - Alexander Buchner
- Laboratory of Tumor Immunology, LIFE Center University Clinic–Grosshadern, Ludwig Maximilians University, 81377 Munich, Germany
- Department of Urology, University Clinic-Grosshadern, Ludwig Maximilians University, 81377 Munich, Germany
| | - Falko Fend
- Institut für Pathologie und Pathologische Anatomie, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
- Institute of Pathology, University Hospital Tuebingen, Eberhard Karls University, 72076 Tuebingen, Germany
| | - Tibor Schuster
- Institut für Medizinische Statistik und Epidemiologie, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Heiner van Randenborgh
- Urologische Klinik und Poliklinik, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Roger Paul
- Urologische Klinik und Poliklinik, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Tania Kummer
- Institut für Experimentelle Onkologie und Therapieforschung, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Christian Plank
- Institut für Experimentelle Onkologie und Therapieforschung, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Bernd Eisele
- Vakzine Projekt Management, 30625 Hannover, Germany
| | - Jürgen Breul
- Urologische Klinik und Poliklinik, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Rudolf Hartung
- Urologische Klinik und Poliklinik, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Dolores J. Schendel
- Institute of Molecular Immunology and Clinical Cooperation Group “Immune Monitoring,” Helmholtz Zentrum München, German Research Center for Environmental Health, 81377 Munich, Germany
| | - Bernd Gansbacher
- Institut für Experimentelle Onkologie und Therapieforschung, Technische Universität München, Klinikum rechts der Isar, 81675 Munich, Germany
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Oral administration of an Enoki mushroom protein FVE activates innate and adaptive immunity and induces anti-tumor activity against murine hepatocellular carcinoma. Int Immunopharmacol 2009; 10:239-46. [PMID: 19909827 DOI: 10.1016/j.intimp.2009.10.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Revised: 10/14/2009] [Accepted: 10/23/2009] [Indexed: 12/31/2022]
Abstract
FVE is a documented immunomodulatory protein purified from Enoki mushroom (Flammulina velutipes) and known as an activator for human T lymphocytes. This present study was aimed to investigate the anti-tumor effect and the related mechanisms of oral administration of FVE using a murine hepatoma model. Oral administration of FVE (10mg/kg) significantly increased the life span and inhibited the tumor size of BNL 1MEA.7R.1 (BNL) hepatoma-bearing mice. Tumor-bearing mice receiving oral FVE treatment had the highest tumoricidal capacity of peritoneal macrophages and tumor-specific splenocytes against BNL hepatoma cells. In addition, in vivo neutralization of interferon-gamma (IFN-gamma) demonstrated a significant decrease of FVE-induced anti-tumor effect (P<0.05). The expression levels of major histocompatibility complex (MHC) class I and II molecules and costimulatory molecule CD80 on peripheral blood mononuclear cells obtained from the FVE-treated mice were upregulated as compared with those of the PBS-treated mice. Furthermore, immunohistochemical staining showed a strong inhibition of tumor growth and angiogenesis in hepatoma tissues after oral administration of FVE. Taken together, oral administration of FVE displayed anti-tumor activity through activating both innate and adaptive immunity of the host to prime a cytotoxic immune response and IFN-gamma played a key role in the anti-tumor efficacy of FVE.
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