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Song MS, Nam JH, Noh KE, Lim DS. Dendritic Cell-Based Immunotherapy: The Importance of Dendritic Cell Migration. J Immunol Res 2024; 2024:7827246. [PMID: 38628676 PMCID: PMC11019573 DOI: 10.1155/2024/7827246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/19/2024] Open
Abstract
Dendritic cells (DCs) are specialized antigen-presenting cells that are crucial for maintaining self-tolerance, initiating immune responses against pathogens, and patrolling body compartments. Despite promising aspects, DC-based immunotherapy faces challenges that include limited availability, immune escape in tumors, immunosuppression in the tumor microenvironment, and the need for effective combination therapies. A further limitation in DC-based immunotherapy is the low population of migratory DC (around 5%-10%) that migrate to lymph nodes (LNs) through afferent lymphatics depending on the LN draining site. By increasing the population of migratory DCs, DC-based immunotherapy could enhance immunotherapeutic effects on target diseases. This paper reviews the importance of DC migration and current research progress in the context of DC-based immunotherapy.
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Affiliation(s)
- Min-Seon Song
- Department of Bioconvergence, Graduate School and Department of Biotechnology, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Ji-Hee Nam
- Department of Bioconvergence, Graduate School and Department of Biotechnology, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Kyung-Eun Noh
- Department of Bioconvergence, Graduate School and Department of Biotechnology, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Dae-Seog Lim
- Department of Bioconvergence, Graduate School and Department of Biotechnology, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
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2
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Tai Y, Chen M, Wang F, Fan Y, Zhang J, Cai B, Yan L, Luo Y, Li Y. The role of dendritic cells in cancer immunity and therapeutic strategies. Int Immunopharmacol 2024; 128:111548. [PMID: 38244518 DOI: 10.1016/j.intimp.2024.111548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
Dendritic cells (DCs) are asserted as the most potent antigen-presenting cells (APCs) that orchestrate both innate and adaptive immunity, being extremely effective in the induction of robust anti-cancer T cell responses. Hence, the modulation of DCs function represents an attractive target for improving cancer immunotherapy efficacy. A better understanding of the immunobiology of DCs, the interaction among DCs, immune effector cells and tumor cells in tumor microenvironment (TME) and the latest advances in biomedical engineering technology would be required for the design of optimal DC-based immunotherapy. In this review, we focus on elaborating the immunobiology of DCs in healthy and cancer environments, the recent advances in the development of enhancing endogenous DCs immunocompetence via immunomodulators as well as DC-based vaccines. The rapidly developing field of applying nanotechnology to improve DC-based immunotherapy is also highlighted.
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Affiliation(s)
- Yunze Tai
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Man Chen
- Hebei Yanda Lu Daopei Hospital, Langfang 065201, China
| | - Fang Wang
- Department of Medical Laboratory, The Second Affiliated Hospital of Guizhou Medical University, Kaili, Guizhou 556000, China
| | - Yu Fan
- Department of Urology, National Clinical Research Center for Geriatrics and Organ Transplantation Center, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu 610041, China
| | - Junlong Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bei Cai
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lin Yan
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yao Luo
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yi Li
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China.
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Namdari H, Rezaei F, Heidarnejad F, Yaghoubzad-Maleki M, Karamigolbaghi M. Immunoinformatics Approach to Design a Chimeric CD70-Peptide Vaccine against Renal Cell Carcinoma. J Immunol Res 2024; 2024:2875635. [PMID: 38314087 PMCID: PMC10838208 DOI: 10.1155/2024/2875635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/04/2024] [Accepted: 01/10/2024] [Indexed: 02/06/2024] Open
Abstract
Renal cell carcinoma (RCC) accounts for the majority of cancer-related deaths worldwide. Overexpression of CD70 has been linked to advanced stages of RCC. Therefore, this study aims to develop a multiepitope vaccine targeting the overexpressed CD70 using immunoinformatics techniques. In this investigation, in silico multiepitope vaccines were constructed by linking specific CD70 protein epitopes for helper T lymphocytes and CD8+ T lymphocytes. To enhance immunogenicity, sequences of cell-penetrating peptide (CPP), penetratin (pAntp), along with the entire sequence of tumor necrosis factor-α (TNF-α), were attached to the N-terminal and C-terminal of the CD70 epitopes. Computational assessments were performed on these chimeric vaccines for antigenicity, allergenicity, peptide toxicity, population coverage, and physicochemical properties. Furthermore, refined 3D constructs were subjected to a range of analyses, encompassing structural B-cell epitope prediction and molecular docking. The chosen vaccine construct underwent diverse assessments such as molecular dynamics simulation, immune response simulation, and in silico cloning. All vaccines comprised antigenic, nontoxic, and nonallergenic epitopes, ensuring extensive global population coverage. The vaccine constructs demonstrated favorable physicochemical characteristics. The binding affinity of chimeric vaccines to the TNF receptor remained relatively stable, influenced by the alignment of vaccine components. Molecular docking and dynamics analyses predicted stable interactions between CD70-CPP-TNF and the TNF receptor, indicating potential efficacy. In silico codon optimization and cloning of the vaccine nucleic acid sequence were accomplished using the pET28a plasmid. Furthermore, this vaccine displayed the capacity to modulate humoral and cellular immune responses. Overall, the results suggest therapeutic potential for the chimeric CD70-CPP-TNF vaccine against RCC. However, validation through in vitro and in vivo experiments is necessary. This trial is registered with NCT04696731 and NCT04046445.
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Affiliation(s)
- Haideh Namdari
- Iranian Tissue Bank and Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Farhad Rezaei
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Heidarnejad
- Biotechnology Research Center (BRC), Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Yaghoubzad-Maleki
- Division of Biochemistry, Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Maryam Karamigolbaghi
- Iranian Tissue Bank and Research Center, Tehran University of Medical Science, Tehran, Iran
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Harari A, Graciotti M, Bassani-Sternberg M, Kandalaft LE. Antitumour dendritic cell vaccination in a priming and boosting approach. Nat Rev Drug Discov 2020; 19:635-652. [PMID: 32764681 DOI: 10.1038/s41573-020-0074-8] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2020] [Indexed: 02/06/2023]
Abstract
Mobilizing antitumour immunity through vaccination potentially constitutes a powerful anticancer strategy but has not yet provided robust clinical benefits in large patient populations. Although major hurdles still exist, we believe that currently available strategies for vaccines that target dendritic cells or use them to present antitumour antigens could be integrated into existing clinical practice using prime-boost approaches. In the priming phase, these approaches capitalize on either standard treatment modalities to trigger in situ vaccination and release tumour antigens or vaccination with dendritic cells loaded with tumour lysates or patient-specific neoantigens. In a second boost phase, personalized synthetic vaccines specifically boost T cells that were triggered during the priming phase. This immunotherapy approach has been enabled by the substantial recent improvements in dendritic cell vaccines. In this Perspective, we discuss these improvements, highlight how the prime-boost approach can be translated into clinical practice and provide solutions for various anticipated hurdles.
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Affiliation(s)
- Alexandre Harari
- Center of Experimental Therapeutics, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Michele Graciotti
- Center of Experimental Therapeutics, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Michal Bassani-Sternberg
- Center of Experimental Therapeutics, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Lana E Kandalaft
- Center of Experimental Therapeutics, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland. .,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland.
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5
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Sarivalasis A, Boudousquié C, Balint K, Stevenson BJ, Gannon PO, Iancu EM, Rossier L, Martin Lluesma S, Mathevet P, Sempoux C, Coukos G, Dafni U, Harari A, Bassani-Sternberg M, Kandalaft LE. A Phase I/II trial comparing autologous dendritic cell vaccine pulsed either with personalized peptides (PEP-DC) or with tumor lysate (OC-DC) in patients with advanced high-grade ovarian serous carcinoma. J Transl Med 2019; 17:391. [PMID: 31771601 PMCID: PMC6880492 DOI: 10.1186/s12967-019-02133-w] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/09/2019] [Indexed: 02/07/2023] Open
Abstract
Background Most ovarian cancer patients are diagnosed at a late stage with 85% of them relapsing after surgery and standard chemotherapy; for this reason, new treatments are urgently needed. Ovarian cancer has become a candidate for immunotherapy by reason of their expression of shared tumor-associated antigens (TAAs) and private mutated neoantigens (NeoAgs) and the recognition of the tumor by the immune system. Additionally, the presence of intraepithelial tumor infiltrating lymphocytes (TILs) is associated with improved progression-free and overall survival of patients with ovarian cancer. The aim of active immunotherapy, including vaccination, is to generate a new anti-tumor response and amplify an existing immune response. Recently developed NeoAgs-based cancer vaccines have the advantage of being more tumor specific, reducing the potential for immunological tolerance, and inducing robust immunogenicity. Methods We propose a randomized phase I/II study in patients with advanced ovarian cancer to compare the immunogenicity and to assess safety and feasibility of two personalized DC vaccines. After standard of care surgery and chemotherapy, patients will receive either a novel vaccine consisting of autologous DCs pulsed with up to ten peptides (PEP-DC), selected using an agnostic, yet personalized, epitope discovery algorithm, or a sequential combination of a DC vaccine loaded with autologous oxidized tumor lysate (OC-DC) prior to an equivalent PEP-DC vaccine. All vaccines will be administered in combination with low-dose cyclophosphamide. This study is the first attempt to compare the two approaches and to use NeoAgs-based vaccines in ovarian cancer in the adjuvant setting. Discussion The proposed treatment takes advantage of the beneficial effects of pre-treatment with OC-DC prior to PEP-DC vaccination, prompting immune response induction against a wide range of patient-specific antigens, and amplification of pre-existing NeoAgs-specific T cell clones. Trial registration This trial is already approved by Swissmedic (Ref.: 2019TpP1004) and will be registered at http://www.clinicaltrials.gov before enrollment opens.
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Affiliation(s)
- Apostolos Sarivalasis
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Caroline Boudousquié
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Klara Balint
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | | | - Philippe O Gannon
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Emanuela Marina Iancu
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Laetitia Rossier
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Silvia Martin Lluesma
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Patrice Mathevet
- Women-Mother-Child Department, Service of Gynecology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Christine Sempoux
- Department of Pathology, University Hospital of Lausanne, Lausanne, Switzerland
| | - George Coukos
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Urania Dafni
- Laboratory of Biostatistics, School of Health Sciences, National and Kapodistrian, University of Athens, Athens, Greece
| | - Alexandre Harari
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Michal Bassani-Sternberg
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Lana E Kandalaft
- Department of Oncology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland. .,Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland.
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Giridhar KV, Sosa CP, Hillman DW, Sanhueza C, Dalpiaz CL, Costello BA, Quevedo FJ, Pitot HC, Dronca RS, Ertz D, Cheville JC, Donkena KV, Kohli M. Whole Blood mRNA Expression-Based Prognosis of Metastatic Renal Cell Carcinoma. Int J Mol Sci 2017; 18:ijms18112326. [PMID: 29099775 PMCID: PMC5713295 DOI: 10.3390/ijms18112326] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 10/28/2017] [Accepted: 10/31/2017] [Indexed: 12/20/2022] Open
Abstract
The Memorial Sloan Kettering Cancer Center (MSKCC) prognostic score is based on clinical parameters. We analyzed whole blood mRNA expression in metastatic clear cell renal cell carcinoma (mCCRCC) patients and compared it to the MSKCC score for predicting overall survival. In a discovery set of 19 patients with mRCC, we performed whole transcriptome RNA sequencing and selected eighteen candidate genes for further evaluation based on associations with overall survival and statistical significance. In an independent validation of set of 47 patients with mCCRCC, transcript expression of the 18 candidate genes were quantified using a customized NanoString probeset. Cox regression multivariate analysis confirmed that two of the candidate genes were significantly associated with overall survival. Higher expression of BAG1 [hazard ratio (HR) of 0.14, p < 0.0001, 95% confidence interval (CI) 0.04–0.36] and NOP56 (HR 0.13, p < 0.0001, 95% CI 0.05–0.34) were associated with better prognosis. A prognostic model incorporating expression of BAG1 and NOP56 into the MSKCC score improved prognostication significantly over a model using the MSKCC prognostic score only (p < 0.0001). Prognostic value of using whole blood mRNA gene profiling in mCCRCC is feasible and should be prospectively confirmed in larger studies.
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Affiliation(s)
- Karthik V Giridhar
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Carlos P Sosa
- Biomarker Discovery, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - David W Hillman
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA.
| | - Cristobal Sanhueza
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
- Department of Oncology, Clínica Santa María, Santiago 8320000, Chile.
| | - Candace L Dalpiaz
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Brian A Costello
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Fernando J Quevedo
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Henry C Pitot
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Roxana S Dronca
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Donna Ertz
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - John C Cheville
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.
| | - Krishna Vanaja Donkena
- Biomarker Discovery, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA.
| | - Manish Kohli
- Department of Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
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Shrotriya S, Walsh D, Bennani-Baiti N, Thomas S, Lorton C. C-Reactive Protein Is an Important Biomarker for Prognosis Tumor Recurrence and Treatment Response in Adult Solid Tumors: A Systematic Review. PLoS One 2015; 10:e0143080. [PMID: 26717416 PMCID: PMC4705106 DOI: 10.1371/journal.pone.0143080] [Citation(s) in RCA: 174] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 10/30/2015] [Indexed: 12/14/2022] Open
Abstract
PURPOSE A systematic literature review was done to determine the relationship between elevated CRP and prognosis in people with solid tumors. C-reactive protein (CRP) is a serum acute phase reactant and a well-established inflammatory marker. We also examined the role of CRP to predict treatment response and tumor recurrence. METHODS MeSH (Medical Subject Heading) terms were used to search multiple electronic databases (PubMed, EMBASE, Web of Science, SCOPUS, EBM-Cochrane). Two independent reviewers selected research papers. We also included a quality Assessment (QA) score. Reports with QA scores <50% were excluded. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) methodology was utilized for this review (S1 PRISMA Checklist). RESULTS 271 articles were identified for final review. There were 45% prospective studies and 52% retrospective. 264 had intermediate QA score (≥50% but <80%); Seven were adequate (80% -100%); A high CRP was predictive of prognosis in 90% (245/271) of studies-80% of the 245 studies by multivariate analysis, 20% by univariate analysis. Many (52%) of the articles were about gastrointestinal malignancies (GI) or kidney malignancies. A high CRP was prognostic in 90% (127 of 141) of the reports in those groups of tumors. CRP was also prognostic in most reports in other solid tumors primary sites. CONCLUSIONS A high CRP was associated with higher mortality in 90% of reports in people with solid tumors primary sites. This was particularly notable in GI malignancies and kidney malignancies. In other solid tumors (lung, pancreas, hepatocellular cancer, and bladder) an elevated CRP also predicted prognosis. In addition there is also evidence to support the use of CRP to help decide treatment response and identify tumor recurrence. Better designed large scale studies should be conducted to examine these issues more comprehensively.
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Affiliation(s)
- Shiva Shrotriya
- Department of Solid Tumor Oncology, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
- The Harry R. Horvitz Center for Palliative Medicine, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
| | - Declan Walsh
- Department of Solid Tumor Oncology, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
- The Harry R. Horvitz Center for Palliative Medicine, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
- * E-mail:
| | - Nabila Bennani-Baiti
- Department of Solid Tumor Oncology, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
- The Harry R. Horvitz Center for Palliative Medicine, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
| | - Shirley Thomas
- Department of Solid Tumor Oncology, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
- The Harry R. Horvitz Center for Palliative Medicine, The Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, United States of America
| | - Cliona Lorton
- Our Lady’s Hospice & Care Services, Harold’s Cross, Dublin, Ireland
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Meng FD, Sui CG, Tian X, Li Y, Yang CM, Ma P, Liu YP, Jiang YH. Heat-shock protein 70 as a tumor antigen for in vitro dendritic cell pulsing in renal cell carcinoma cases. Asian Pac J Cancer Prev 2015; 15:8947-50. [PMID: 25374234 DOI: 10.7314/apjcp.2014.15.20.8947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Immunological functions of heat shock proteins (HSPs) have long been recognized. In this study we aimed to efficiently purify HSP70 from renal cell carcinoma and test it as a tumor antigen for pulsing dendritic cells in vitro. HSP70 was purified from renal cell carcinoma specimens by serial column chromatography on Con A-sepharose, PD-10, ADP-agarose and DEAE-cellulose, and finally subjected to fast protein liquid chromatography (FPLC). Dendritic cells derived from the adherent fraction of peripheral blood mononuclear cells were cultured in the presence of IL-4 and GM-CSF and exposed to tumor HSP70. After 24 hours, dendritic cells were phenotypically characterized by flow cytometry. T cells obtained from the non-adherent fraction of peripheral blood mononuclear cells were then co-cultured with HSP70-pulsed dendritic cells and after 3 days T cell cytotoxicity towards primary cultured renal cell carcinoma cells was examined by Cell Counting Kit-8 assay. Dendritic cells pulsed in vitro with tumor-derived HSP70 expressed higher levels of CD83, CD80, CD86 and HLA-DR maturation markers than those pulsed with tumor cell lysate and comparable to that of dendritic cells pulsed with tumor cell lysate plus TNF-α. Concomitantly, cytotoxic T-lymphocytes induced by HSP70-pulsed dendritic cells presented the highest cytotoxic activity. There were no significant differences when using homologous or autologous HSP70 as the tumor antigen. HSP70 can be efficiently purified by chromatography and induces in vitro dendritic cell maturation in the absence of TNF-α. Conspecific HSP70 may effectively be used as a tumor antigen to pulse dendritic cells in vitro.
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Affiliation(s)
- Fan-Dong Meng
- The Second Lab of Cancer Research Institute, The First Hospital of China Medical University, Shenyang, China E-mail :
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9
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Coppin C. Immunotherapy for renal cell cancer in the era of targeted therapy. Expert Rev Anticancer Ther 2014; 8:907-19. [DOI: 10.1586/14737140.8.6.907] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Genetic profiles of plasmacytoid (BDCA-4 expressing) DC subtypes-clues to DC subtype function in vivo. Exp Hematol Oncol 2013; 2:8. [PMID: 23497451 PMCID: PMC3608935 DOI: 10.1186/2162-3619-2-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 03/05/2013] [Indexed: 01/29/2023] Open
Abstract
Among the dendritic cell (DC) subsets, plasmacytoid DC’s (pDC) are thought to be important in the generation of both antiviral and antitumor responses. While pDC may be useful in developing dendritic cell-based tumor vaccines, the low frequency of these cells in the peripheral blood has hampered attempts to understand their biology. To provide better insight into the biology of pDC, we isolated these unperturbed cells from the peripheral blood of healthy donors in order to further characterize their gene expression. Using gene array technology we compared the genetic profiles of these cells to those of CD14+ monocytes isolated from the same donors and found several immune related genes upregulated in this cell population. This is the first description, to our knowledge, of gene expression in this subset of DCs obtained from the peripheral blood of adult human donors without exposure in vitro to cytokine or growth factors. Understanding the natural genetic profiles of this dendritic cell subtype as well as others such as the BDCA-1 expressing myeloid DCs may enable us to manipulate these cells ex-vivo to generate enhanced DC-based tumor vaccines inducing more robust antitumor responses.
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11
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Gene expression profile of peripheral blood lymphocytes from renal cell carcinoma patients treated with IL-2, interferon-α and dendritic cell vaccine. PLoS One 2012; 7:e50221. [PMID: 23226513 PMCID: PMC3513309 DOI: 10.1371/journal.pone.0050221] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 10/22/2012] [Indexed: 12/03/2022] Open
Abstract
Lymphocytes are a key component of the immune system and their differentiation and function are directly influenced by cancer. We examined peripheral blood lymphocyte (PBL) gene expression as a biomarker of illness and treatment effect using the Affymetrix Human Gene ST1 platform in patients with metastatic renal cell carcinoma (mRCC) who received combined treatment with IL-2, interferon-?-2a and dendritic cell vaccine. We examined gene expression, cytokine levels in patient serum and lymphocyte subsets as determined by flow cytometry (FCM). Pre-treatment PBLs from patients with mRCC exhibit a gene expression profile and serum cytokine profile consistent with inflammation and proliferation not found in healthy donors (HD). PBL gene expression from patients with mRCC showed increased mRNA of genes involved with T-cell and TREG-cell activation pathways, which was also reflected in lymphocyte subset distribution. Overall, PBL gene expression post-treatment (POST) was not significantly different than pre-treatment (PRE). Nevertheless, treatment related changes in gene expression (post-treatment minus pre-treatment) revealed an increased expression of T-cell and B-cell receptor signaling pathways in responding (R) patients compared to non-responding (NR) patients. In addition, we observed down-regulation of TREG-cell pathways post-treatment in R vs. NR patients. While exploratory in nature, this study supports the hypothesis that enhanced inflammatory cytotoxic pathways coupled with blunting of the regulatory pathways is necessary for effective anti-cancer activity associated with immune therapy. This type of analysis can potentially identify additional immune therapeutic targets in patients with mRCC.
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12
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Aqueous Extract of Paeonia suffruticosa Inhibits Migration and Metastasis of Renal Cell Carcinoma Cells via Suppressing VEGFR-3 Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:409823. [PMID: 22454663 PMCID: PMC3291499 DOI: 10.1155/2012/409823] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 11/02/2011] [Indexed: 12/19/2022]
Abstract
Renal cell carcinoma (RCC) cells are characterized by strong drug resistance and high metastatic incidence. In this study, the effects of ten kinds of Chinese herbs on RCC cell migration and proliferation were examined. Aqueous extract of Paeonia suffruticosa (PS-A) exerted strong inhibitory effects on cancer cell migration, mobility, and invasion. The results of mouse xenograft experiments showed that the treatment of PS-A significantly suppressed tumor growth and pulmonary metastasis. We further found that PS-A markedly decreased expression of VEGF receptor-3 (VEGFR-3) and phosphorylation of FAK in RCC cells. Moreover, the activation of Rac-1, a modulator of cytoskeletal dynamics, was remarkably reduced by PS-A. Additionally, PS-A suppressed polymerization of actin filament as demonstrated by confocal microscopy analysis and decreased the ratio of F-actin to G-actin in RCC cells, suggesting that PS-A inhibits RCC cell migration through modulating VEGFR-3/FAK/Rac-1 pathway to disrupt actin filament polymerization. In conclusion, this research elucidates the effects and molecular mechanism for antimigration of PS-A on RCC cells and suggests PS-A to be a therapeutic or adjuvant strategy for the patients with aggressive RCC.
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Paine A, Kirchner H, Immenschuh S, Oelke M, Blasczyk R, Eiz-Vesper B. IL-2 Upregulates CD86 Expression on Human CD4+ and CD8+ T Cells. THE JOURNAL OF IMMUNOLOGY 2012; 188:1620-9. [DOI: 10.4049/jimmunol.1100181] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Abstract
Glioblastoma, the most aggressive primary brain tumor, thrives in a microenvironment of relative immunosuppression within the relatively immune-privileged central nervous system. Despite treatments with surgery, radiation therapy, and chemotherapy, prognosis remains poor. The recent success of immunotherapy in the treatment of other cancers has renewed interest in vaccine therapy for the treatment of gliomas. In this article, we outline various immunotherapeutic strategies, review recent clinical trials data, and discuss the future of vaccine therapy for glioblastoma.
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Affiliation(s)
- Alissa A. Thomas
- Department of Neurology, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
| | - Marc S. Ernstoff
- Department of Medicine, Section of Hematology/Oncology, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
- Medical Oncology Immunotherapy Program, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
| | - Camilo E. Fadul
- Department of Medicine, Section of Hematology/Oncology, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
- Department of Neurology, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
- Medical Oncology Immunotherapy Program, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
- Neuro-oncology Program, Norris Cotton Cancer Center, Dartmouth Medical School and Dartmouth-Hitchcock Medical Center, Lebanon NH 03756
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Brookman-May S, Burger M, Wieland WF, Rössler W, May M, Denzinger S. Vaccination therapy in renal cell carcinoma: current position and future options in metastatic and localized disease. Expert Rev Vaccines 2011; 10:837-52. [PMID: 21692704 DOI: 10.1586/erv.11.64] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
As renal cell carcinoma represents one of the most immune-responsive cancers, immunotherapy exhibits a suitable treatment basis. Beside nonspecific stimulation via cytokines, passive specific and active immunotherapy are also appropriate options to recognize and destroy tumor cells. For more than 30 years, research regarding vaccination therapy has been of special interest for the treatment of renal cell carcinoma. However, apart from occasional promising results in Phase I and II trials, vaccination therapy is still considered experimental in this tumor entity, especially owing to missing results from Phase III trials demonstrating clinical efficacy. In the present article, we review data from completed clinical trials of vaccination therapy and also discuss scheduled future trials, in order to assess the current position and possible future fields of application of vaccination therapy in renal cell carcinoma in the era of recently developed targeted therapies.
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Affiliation(s)
- Sabine Brookman-May
- University of Regensburg, Department of Urology, Caritas St. Josef Medical Center, Landshuter Strasse 65, 93053 Regensburg, Germany.
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16
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Immune response in patients with newly diagnosed glioblastoma multiforme treated with intranodal autologous tumor lysate-dendritic cell vaccination after radiation chemotherapy. J Immunother 2011; 34:382-9. [PMID: 21499132 DOI: 10.1097/cji.0b013e318215e300] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Patients with glioblastoma multiforme (GBM) are profoundly immunosuppressed and may benefit from restoration of an antitumor immune response in combination with conventional radiation therapy and temozolomide (TMZ). The optimal strategies to evaluate clinically relevant immune responses to treatment have yet to be determined. The primary objective of our study was to determine immunologic response to cervical intranodal vaccination with autologous tumor lysate-loaded dendritic cells (DCs) in patients with GBM after radiation therapy and TMZ. We used a novel hierarchical clustering analysis of immune parameters measured before and after vaccination. Secondary objectives were to assess treatment feasibility and to correlate immune response with progression-free survival (PFS) and overall survival. Ten eligible patients received vaccination. Tumor-specific cytotoxic T-cell response measured after vaccination was enhanced for the precursor frequency of CD4+ T and CD4+ interferon γ-producing cells. Hierarchical clustering analysis of multiple functional outcomes discerned 2 groups of patients according to their immune response, and additionally showed that patients in the top quintile for at least one immune function parameter had improved survival. There were no serious adverse events related to DC vaccination. All patients were alive at 6 months after diagnosis and the 6-month PFS was 90%. The median PFS was 9.5 months and overall survival was 28 months. In patients with GBM, immune therapy with DC vaccination after radiation and TMZ resulted in tumor-specific immune responses that were associated with prolonged survival. Our data suggest that DC vaccination in combination with radiation and chemotherapy in patients with GBM is feasible, safe, and may induce tumor-specific immune responses.
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Cancer vaccines. Any future? Arch Immunol Ther Exp (Warsz) 2011; 59:249-59. [PMID: 21644030 DOI: 10.1007/s00005-011-0129-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Accepted: 02/02/2011] [Indexed: 12/22/2022]
Abstract
The idea that vaccination can be used to fight cancer is not new. Approximately 100 years ago, researchers attempted to stimulate a tumor-specific, therapeutic immune response to tumors by injecting patients with cells and extracts from their own tumors, or tumors of the same type from different individuals. During the last decade, great efforts have been made to develop immunotherapeutic approaches for the treatment of malignant diseases as alternatives to traditional chemo- and radiotherapy. A quintessential goal of immunotherapy in cancer is treatment with vaccines that elicit potent anti-tumor immune responses without side effects. In this article, we have attempted to review some of the most problematic issues facing the development of cancer vaccines. With the prospect of immunosuppression, an ill-designed cancer vaccine can be more harmful than a no-benefit therapy. We have noted that "immunoediting" and "immunodominance" are the premier setbacks in peptide-based vaccines and therefore it appears necessary not only to manipulate the activity of a vast number of principal components but also to finely tune their concentrations in time and space. In the face of all these quandaries, it is at least doubtful that any reliable anti-cancer vaccine strategy will emerge in the near future.
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Fadul CE, Fisher JL, Gui J, Hampton TH, Côté AL, Ernstoff MS. Immune modulation effects of concomitant temozolomide and radiation therapy on peripheral blood mononuclear cells in patients with glioblastoma multiforme. Neuro Oncol 2011; 13:393-400. [PMID: 21339188 DOI: 10.1093/neuonc/noq204] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Concomitant radiation therapy (RT) and temozolomide (TMZ) therapy after surgery is the standard treatment for glioblastoma multiforme (GBM). Radiation and chemotherapy can affect the immune system with implications on subsequent immune therapy. Therefore, we examined the phenotype and function of peripheral blood mononuclear cells in 25 patients with GBM prior to and 4 weeks after treatment with RT-TMZ using multicolor flow cytometry, as well as in vitro CD4(+) regulatory T cell (T(reg)) suppressor and dendritic cell maturation assays. RT-TMZ induced significant lymphopenia, with a decrease in total CD4(+) T cells, but did not significantly change monocyte counts. The proportion of functional T(reg) cells increased after treatment, whereas their absolute numbers remained stable. There was also a measurable decrease in the proportion of CD8(+)CD56(+) and absolute number of CD3(-)CD56(+) effector cells. Posttherapy monocytes retained the ability to mature into dendritic cells. Treatment with RT-TMZ is associated with changes in regulatory and effector peripheral blood mononuclear cells that tilt the balance towards an immune suppressive state. This shift can affect the outcome of immune therapy following RT-TMZ treatment and should be considered in the design of future combination therapy regimens.
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Affiliation(s)
- Camilo E Fadul
- Department of Medicine, Section of Hematology/Oncology, Neuro-oncology Program, Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA.
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Schwaab T, Schwarzer A, Wolf B, Crocenzi TS, Seigne JD, Crosby NA, Cole BF, Fisher JL, Uhlenhake JC, Mellinger D, Foster C, Szczepiorkowski ZM, Webber SM, Schned AR, Harris RD, Barth RJ, Heaney JA, Noelle RJ, Ernstoff MS. Clinical and immunologic effects of intranodal autologous tumor lysate-dendritic cell vaccine with Aldesleukin (Interleukin 2) and IFN-{alpha}2a therapy in metastatic renal cell carcinoma patients. Clin Cancer Res 2009; 15:4986-92. [PMID: 19622576 PMCID: PMC3775650 DOI: 10.1158/1078-0432.ccr-08-3240] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE To evaluate the clinical and immunologic outcomes of DC (dendritic cell) vaccine with interleukin (IL)-2 and IFN-alpha 2a in metastatic renal cell carcinoma patients. EXPERIMENTAL DESIGN Eighteen consented and eligible patients were treated. Peripheral blood monocytes were cultured ex vivo into mature DCs and loaded with autologous tumor lysate. Treatment consisted of five cycles of intranodal vaccination of DCs (1 x 10(7) cells/1 mL Lactated Ringer's solution), 5-day continuous i.v. infusion of IL-2 (18MiU/m2), and three s.c. injections of IFN-alpha 2a (6MiU) every other day. Response Evaluation Criteria in Solid Tumors criteria were used for disease assessment. Correlative immunologic end points included peripheral blood lymphocyte cell phenotype and function as well as peripheral blood anti-renal cell carcinoma antibody and cytokine levels. RESULTS All patients received between two and five treatment cycles. Toxicities consisted of known and expected cytokine side effects. Overall objective clinical response rate was 50% with three complete responses. Median time to progression for all patients was 8 months, and median survival has not been reached (median follow up of 37+ months). Treatment-related changes in correlative immunologic end points were noted and the level of circulating CD4(+) T regulatory cells had a strong association with outcome. Pre-IP-10 serum levels approached significance for predicting outcome. CONCLUSIONS The clinical and immunologic responses observed in this trial suggest an interaction between DC vaccination and cytokine therapy. Our data support the hypothesis that modulation of inflammatory, regulatory, and angiogenic pathways are necessary to optimize therapeutic benefit in renal cell carcinoma patients. Further exploration of this approach is warranted.
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Affiliation(s)
- Thomas Schwaab
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Adrian Schwarzer
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Benita Wolf
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | | | - John D. Seigne
- Section of Urology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Nancy A. Crosby
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Bernard F. Cole
- Section of Biostatistics and Epidemiology, Department of Family and Community Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Dartmouth Medical School, Hanover, New Hampshire
| | - Jan L. Fisher
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Jill C. Uhlenhake
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Diane Mellinger
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Cathy Foster
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Zbigniew M. Szczepiorkowski
- Cell Therapy Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Immunotherapy Program, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Susan M. Webber
- Cell Therapy Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Alan R. Schned
- Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Robert D. Harris
- Department of Diagnostic Radiology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Richard J. Barth
- Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Immunotherapy Program, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - John A. Heaney
- Section of Urology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Randolph J. Noelle
- Department of Microbiology and Immunology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Immunotherapy Program, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Dartmouth Medical School, Hanover, New Hampshire
| | - Marc S. Ernstoff
- Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Section of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Department of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
- Immunotherapy Program, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
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Vaccine Therapy in Patients with Renal Cell Carcinoma. Eur Urol 2009; 55:1333-42. [DOI: 10.1016/j.eururo.2009.01.043] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Accepted: 01/22/2009] [Indexed: 11/20/2022]
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Abstract
Advanced renal cell carcinoma remains resistant to drug-, hormone-, and cytokine-based therapies. Promising new immunotherapeutic approaches include monoclonal antibodies, kinase inhibitors, mammalian target of rapamycin inhibition, dendritic cell, and tumor antigen vaccines. Most of these approaches have yet to produce clinical responses significantly superior to those of previous standard therapies, although most are well tolerated and elicit relatively high rates of stable disease. Two recently approved agents, a kinase inhibitor and a mTOR inhibitor, are recommended for use as first-line therapies against renal cell carcinoma. An additional approved tyrosine kinase inhibitor, sorafenib, is recommended as second-line therapy. More clinical research on these agents and their use in combination, especially sequentially, is warranted.
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Vaccination of metastatic renal cell carcinoma patients with autologous tumour-derived vitespen vaccine: clinical findings. Br J Cancer 2008; 98:1336-41. [PMID: 18362942 PMCID: PMC2361701 DOI: 10.1038/sj.bjc.6604266] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The aim of this study was to evaluate the clinical efficacy as determined by time to progression and response rate (RR) of autologous vitespen (formerly HSPPC-96; Oncophage, Antigenics Inc., New York, NY, USA) with and without interleukin-2 (IL-2; Proleukin: Chiron, Emoryville, CA, USA) in stage IV metastatic renal cell carcinoma (RCC) patients undergoing nephrectomy. Eighty-four patients were enrolled on study, and then underwent nephrectomy and harvest of tumour tissue for use in autologous vaccine manufacture. Initial treatment schedule started approximately 4 weeks after surgery and consisted of six injections: once weekly for 4 weeks, then two injections biweekly (vaccines administered at weeks 1, 2, 3, 4, 6, 8), followed by restaging at or around week 10. Patients who had stable or responsive disease continued to receive vaccine, with four more vaccinations biweekly (at weeks 10, 12, 14, 16). Patients who had progressive disease at week-10 evaluation received four consecutive 5-day-per-week courses of 11 x 10(6) U of IL-2 subcutaneously (weeks 10, 11, 12, 13), with four doses of vitespen at 2-week intervals (at weeks 10, 12, 14, 16). At the next evaluation (week 18), patients with a complete response received two further cycles of vitespen (with IL-2 if also received during prior cycle) or until vaccine supply was exhausted. Patients with stable disease or partial response repeated their prior cycle of therapy. Disease progressors who had not yet received IL-2 began IL-2 treatment, and progressors who had already received IL-2 came off study. Of 60 evaluable patients, 2 demonstrated complete response (CR), 2 showed partial response (PR), 7 showed stable disease, and 33 patients progressed. Sixteen patients had unconfirmed stable disease. Two patients who progressed on vaccine alone experienced disease stabilisation when IL-2 was added. Treatment with vitespen did not result in a discernable benefit in the majority of patients with metastatic RCC treated in this study. Use in combination with immunoregulatory agents may enhance the efficacy of vitespen.
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Schwaab T, Fisher JL, Meehan KR, Fadul CE, Givan AL, Ernstoff MS. Dye dilution proliferation assay: application of the DDPA to identify tumor-specific T cell precursor frequencies in clinical trials. Immunol Invest 2008; 36:649-64. [PMID: 18161523 DOI: 10.1080/08820130701674760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A better understanding of immune effector and regulatory pathways has led to innovative, and complex, immunotherapy strategies. CD8(+) cytolytic T lymphocytes (CTL) provide one common pathway of tumor cell destruction. The peripheral blood CTL compartment typically comprises a minority of anti-tumor CD8(+) lymphocytes and the determination of their number during clinical trials is the focus of various laboratory methods. We have monitored tumor specific CD8(+) as well as CD4(+) lymphocyte precursor frequencies in the peripheral blood using a Dye Dilution Proliferation Assay (DDPA). We summarize our experience applying DDPA in a multi-parameter, antigen-specific assay, detailing some of its complexities and advantages. We provide examples of our clinical trial results showing tumor-specific CD8(+) and CD4(+) precursor frequency (PF) data in patients being treated on novel immunotherapy trials.
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Affiliation(s)
- Thomas Schwaab
- Medical Oncology Immunotherapy Program, Dartmouth Medical School, Lebanon, New Hampshire, USA
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