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Pollack IF, Felker J, Frederico SC, Raphael I, Kohanbash G. Immunotherapy for pediatric low-grade gliomas. Childs Nerv Syst 2024:10.1007/s00381-024-06491-9. [PMID: 38884777 DOI: 10.1007/s00381-024-06491-9] [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] [Received: 03/20/2024] [Accepted: 06/01/2024] [Indexed: 06/18/2024]
Abstract
Pediatric low-grade gliomas (pLGGs) are the most common brain tumor types affecting children. Although gross-total resection remains the treatment of choice, many tumors are not amenable to complete removal, because they either involve midline structures, such as the optic chiasm or hypothalamus, and are not conducive to aggressive resection, or have diffuse biological features and blend with the surrounding brain. Historically, radiation therapy was used as the second-line option for disease control, but with the recognition that this often led to adverse long-term sequelae, particularly in young children, conventional chemotherapy assumed a greater role in initial therapy for unresectable tumors. A variety of agents demonstrated activity, but long-term disease control was suboptimal, with more than 50% of tumors exhibiting disease progression within 5 years. More recently, it has been recognized that a high percentage of these tumors in children exhibit constitutive activation of the mitogen-activated protein kinase (MAPK) pathway because of BRAF translocations or mutations, NFI mutations, or a host of other anomalies that converged on MAPK. This led to phase 1, 2, and 3 trials that explored the activity of blocking this signaling pathway, and the efficacy of this approach compared to conventional chemotherapy. Despite initial promise of these strategies, not all children tolerate this therapy, and many tumors resume growth once MAPK inhibition is stopped, raising concern that long-term and potentially life-long treatment will be required to maintain tumor control, even among responders. This observation has led to interest in other treatments, such as immunotherapy, that may delay or avoid the need for additional treatments. This chapter will summarize the place of immunotherapy in the current armamentarium for these tumors and discuss prior results and future options to improve disease control, with a focus on our prior efforts and experience in this field.
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Affiliation(s)
- Ian F Pollack
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.
| | - James Felker
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Stephen C Frederico
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Itay Raphael
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Gary Kohanbash
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
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2
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Hatae R, Kyewalabye K, Yamamichi A, Chen T, Phyu S, Chuntova P, Nejo T, Levine LS, Spitzer MH, Okada H. Enhancing CAR-T cell metabolism to overcome hypoxic conditions in the brain tumor microenvironment. JCI Insight 2024; 9:e177141. [PMID: 38386420 PMCID: PMC11128202 DOI: 10.1172/jci.insight.177141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/21/2024] [Indexed: 02/24/2024] Open
Abstract
The efficacy of chimeric antigen receptor T cell (CAR-T) therapy has been limited against brain tumors to date. CAR-T cells infiltrating syngeneic intracerebral SB28 EGFRvIII gliomas revealed impaired mitochondrial ATP production and a markedly hypoxic status compared with ones migrating to subcutaneous tumors. Drug screenings to improve metabolic states of T cells under hypoxic conditions led us to evaluate the combination of the AMPK activator metformin and the mTOR inhibitor rapamycin (Met+Rap). Met+Rap-pretreated mouse CAR-T cells showed activated PPAR-γ coactivator 1α (PGC-1α) through mTOR inhibition and AMPK activation, and a higher level of mitochondrial spare respiratory capacity than those pretreated with individual drugs or without pretreatment. Moreover, Met+Rap-pretreated CAR-T cells demonstrated persistent and effective antiglioma cytotoxic activities in the hypoxic condition. Furthermore, a single intravenous infusion of Met+Rap-pretreated CAR-T cells significantly extended the survival of mice bearing intracerebral SB28 EGFRvIII gliomas. Mass cytometric analyses highlighted increased glioma-infiltrating CAR-T cells in the Met+Rap group, with fewer Ly6c+CD11b+ monocytic myeloid-derived suppressor cells in the tumors. Finally, human CAR-T cells pretreated with Met+Rap recapitulated the observations with murine CAR-T cells, demonstrating improved functions under in vitro hypoxic conditions. These findings advocate for translational and clinical exploration of Met+Rap-pretreated CAR-T cells in human trials.
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Affiliation(s)
| | | | | | | | - Su Phyu
- Department of Neurological Surgery
| | | | | | - Lauren S. Levine
- Department of Otolaryngology-Head and Neck Surgery, and
- Department of Microbiology and Immunology, UCSF, San Francisco, California, USA
| | - Matthew H. Spitzer
- Department of Otolaryngology-Head and Neck Surgery, and
- Department of Microbiology and Immunology, UCSF, San Francisco, California, USA
- The Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
| | - Hideho Okada
- Department of Neurological Surgery
- The Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
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3
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Hatae R, Kyewalabye K, Yamamichi A, Chen T, Phyu S, Chuntova P, Nejo T, Levine LS, Spitzer MH, Okada H. Enhancing CAR-T Cell Metabolism to Overcome Hypoxic Conditions in the Brain Tumor Microenvironment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.13.566775. [PMID: 38014236 PMCID: PMC10680638 DOI: 10.1101/2023.11.13.566775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The efficacy of chimeric antigen receptor (CAR)-T therapy has been limited against brain tumors to date. CAR-T cells infiltrating syngeneic intracerebral SB28-EGFRvIII glioma revealed impaired mitochondrial ATP production and a markedly hypoxic status compared to ones migrating to subcutaneous tumors. Drug screenings to improve metabolic states of T cells under hypoxic conditions led us to evaluate the combination of AMPK activator Metformin and the mTOR inhibitor Rapamycin (Met+Rap). Met+Rap-pretreated mouse CAR-T cells showed activated PPAR-gamma coactivator 1α (PGC-1α) through mTOR inhibition and AMPK activation, and a higher level of mitochondrial spare respiratory capacity than those pretreated with individual drugs or without pretreatment. Moreover, Met+Rap-pretreated CAR-T cells demonstrated persistent and effective anti-glioma cytotoxic activities in the hypoxic condition. Furthermore, a single intravenous infusion of Met+Rap-pretreated CAR-T cells significantly extended the survival of mice bearing intracerebral SB28-EGFRvIII gliomas. Mass cytometric analyses highlighted increased glioma-infiltrating CAR-T cells in the Met+Rap group with fewer Ly6c+ CD11b+ monocytic myeloid-derived suppressor cells in the tumors. Finally, human CAR-T cells pretreated with Met+Rap recapitulated the observations with murine CAR-T cells, demonstrating improved functions in vitro hypoxic conditions. These findings advocate for translational and clinical exploration of Met+Rap-pretreated CAR-T cells in human trials.
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4
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Nejo T, Krishna S, Jimenez C, Yamamichi A, Young JS, Lakshmanachetty S, Chen T, Phyu SSS, Ogino H, Watchmaker P, Diebold D, Choudhury A, Daniel AGS, Raleigh DR, Hervey-Jumper SL, Okada H. Glioma-neuronal circuit remodeling induces regional immunosuppression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.04.548295. [PMID: 37577659 PMCID: PMC10418167 DOI: 10.1101/2023.08.04.548295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Neuronal activity-driven mechanisms impact glioblastoma cell proliferation and invasion 1-7 , and glioblastoma remodels neuronal circuits 8,9 . Distinct intratumoral regions maintain functional connectivity via a subpopulation of malignant cells that mediate tumor-intrinsic neuronal connectivity and synaptogenesis through their transcriptional programs 8 . However, the effects of tumor-intrinsic neuronal activity on other cells, such as immune cells, remain unknown. Here we show that regions within glioblastomas with elevated connectivity are characterized by regional immunosuppression. This was accompanied by different cell compositions and inflammatory status of tumor-associated macrophages (TAMs) in the tumor microenvironment. In preclinical intracerebral syngeneic glioblastoma models, CRISPR/Cas9 gene knockout of Thrombospondin-1 (TSP-1/ Thbs1 ), a synaptogenic factor critical for glioma-induced neuronal circuit remodeling, in glioblastoma cells suppressed synaptogenesis and glutamatergic neuronal hyperexcitability, while simultaneously restoring antigen-presentation and pro-inflammatory responses. Moreover, TSP-1 knockout prolonged survival of immunocompetent mice harboring intracerebral syngeneic glioblastoma, but not of immunocompromised mice, and promoted infiltrations of pro-inflammatory TAMs and CD8+ T-cells in the tumor microenvironment. Notably, pharmacological inhibition of glutamatergic excitatory signals redirected tumor-associated macrophages toward a less immunosuppressive phenotype, resulting in prolonged survival. Altogether, our results demonstrate previously unrecognized immunosuppression mechanisms resulting from glioma-neuronal circuit remodeling and suggest future strategies targeting glioma-neuron-immune crosstalk may open up new avenues for immunotherapy.
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5
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Foster JB, Alonso MM, Sayour E, Davidson TB, Persson ML, Dun MD, Kline C, Mueller S, Vitanza NA, van der Lugt J. Translational considerations for immunotherapy clinical trials in pediatric neuro-oncology. Neoplasia 2023; 42:100909. [PMID: 37244226 DOI: 10.1016/j.neo.2023.100909] [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: 10/13/2022] [Revised: 04/20/2023] [Accepted: 05/11/2023] [Indexed: 05/29/2023]
Abstract
While immunotherapy for pediatric cancer has made great strides in recent decades, including the FDA approval of agents such as dinutuximab and tisgenlecleucel, these successes have rarely impacted children with pediatric central nervous system (CNS) tumors. As our understanding of the biological underpinnings of these tumors evolves, new immunotherapeutics are undergoing rapid clinical translation specifically designed for children with CNS tumors. Most recently, there have been notable clinical successes with oncolytic viruses, vaccines, adoptive cellular therapy, and immune checkpoint inhibition. In this article, the immunotherapy working group of the Pacific Pediatric Neuro-Oncology Consortium (PNOC) reviews the current and future state of immunotherapeutic CNS clinical trials with a focus on clinical trial development. Based on recent therapeutic trials, we discuss unique immunotherapy clinical trial challenges, including toxicity considerations, disease assessment, and correlative studies. Combinatorial strategies and future directions will be addressed. Through internationally collaborative efforts and consortia, we aim to direct this promising field of immuno-oncology to the next frontier of successful application against pediatric CNS tumors.
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Affiliation(s)
- Jessica B Foster
- Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA.
| | - Marta M Alonso
- Department of Pediatrics, Program of Solid Tumors, University Clinic of Navarra, Center for the Applied Medical Research (CIMA), Pamplona, Spain
| | - Elias Sayour
- Lillian S. Wells Department of Neurosurgery, Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, FL USA
| | - Tom B Davidson
- Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Keck School of Medicine of University of Southern California, Los Angeles, CA, United States
| | - Mika L Persson
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia; Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Matthew D Dun
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia; Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia; Mark Hughes Foundation Centre for Brain Cancer Research, Paediatric Program, College of Health, Medicine & Wellbeing, University of Newcastle, Callaghan, NSW, Australia
| | - Cassie Kline
- Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | - Sabine Mueller
- Department of Neurology, Department of Neurosurgery and Department of Pediatrics, UCSF, San Francisco, California, USA
| | - Nicholas A Vitanza
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
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6
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Ahmadzadeh M, Mohit E. Therapeutic potential of a novel IP-10-(anti-HER2 scFv) fusion protein for the treatment of HER2-positive breast cancer. Biotechnol Lett 2023; 45:371-385. [PMID: 36650341 DOI: 10.1007/s10529-022-03342-y] [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: 04/16/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Interferon-γ-inducible protein 10 (IP-10) is a potent antitumor agent and acts by its angiostatic and immunomodulatory properties. IP-10 can target to tumor site by linking with single chain variable fragment (scFv) that recognized specific tumor antigen. In this study, we evaluated biological activity of the fusion protein including IP-10 and anti-HER2 scFv (IP-10-(anti-HER2 scFv)). RESULTS The HER2- and cell-based ELISA as well as the flow cytometry analysis demonstrated that the fusion protein specifically binds to HER2 antigen. In addition, competitive ELISA demonstrated that the fusion protein recognized the same epitope of HER2 antigen as trastuzumab. The results of MTT assay demonstrated that the growth of HER2-enriched SK-BR3 cells was inhibited in the presence of the fusion protein. Moreover, the cytotoxic effect of the fusion protein was not significantly different from that of trastuzumab. However, no significant cytotoxic effect compared to trastuzumab and anti-HER2 scFv was observed in HER2-low-expressing MDA-MB-231 cells. The obtained findings demonstrated that IP-10-(anti-HER2 scFv) can selectively reduce the cell viability in HER2+ cells. Moreover, similar inhibitory effect on growth of both SK-BR-3 and MDA-MB-231 cell lines was observed in the presence of anti-HER2 scFv protein even at high concentration after 72 h. The chemotaxis properties of the fusion protein were also analyzed by a chemotaxis assay. It was demonstrated that the fusion protein induced migration of activated T cell similar to recombinant IP-10 protein. CONCLUSIONS Our findings suggested that IP-10-(anti-HER2 scFv) fusion protein can specifically direct IP-10 to the HER2-expressing tumor cells and may act as an adjuvant along with HER2-based vaccine to gather the elicited immune response at the site of HER2-overexpressimg tumors.
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Affiliation(s)
- Maryam Ahmadzadeh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, No. 2660, Vali-e-Asr Ave, Tehran, 1991953381, Iran
- Food and Drug Administration, The Ministry of Health and Medical Education, Tehran, Iran
| | - Elham Mohit
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, No. 2660, Vali-e-Asr Ave, Tehran, 1991953381, Iran.
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7
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Immune Tumor Microenvironment in Ovarian Cancer Ascites. Int J Mol Sci 2022; 23:ijms231810692. [PMID: 36142615 PMCID: PMC9504085 DOI: 10.3390/ijms231810692] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/26/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Ovarian cancer (OC) has a specific type of metastasis, via transcoelomic, and most of the patients are diagnosed at advanced stages with multiple tumors spread within the peritoneal cavity. The role of Malignant Ascites (MA) is to serve as a transporter of tumor cells from the primary location to the peritoneal wall or to the surface of the peritoneal organs. MA comprise cellular components with tumor and non-tumor cells and acellular components, creating a unique microenvironment capable of modifying the tumor behavior. These microenvironment factors influence tumor cell proliferation, progression, chemoresistance, and immune evasion, suggesting that MA play an active role in OC progression. Tumor cells induce a complex immune suppression that neutralizes antitumor immunity, leading to disease progression and treatment failure, provoking a tumor-promoting environment. In this review, we will focus on the High-Grade Serous Carcinoma (HGSC) microenvironment with special attention to the tumor microenvironment immunology.
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8
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Yan D, Li W, Liu Q, Yang K. Advances in Immune Microenvironment and Immunotherapy of Isocitrate Dehydrogenase Mutated Glioma. Front Immunol 2022; 13:914618. [PMID: 35769466 PMCID: PMC9234270 DOI: 10.3389/fimmu.2022.914618] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
The tumor immune microenvironment and immunotherapy have become current important tumor research concerns. The unique immune microenvironment plays a crucial role in the malignant progression of isocitrate dehydrogenase (IDH) mutant gliomas. IDH mutations in glioma can inhibit tumor-associated immune system evasion of NK cell immune surveillance. Meanwhile, mutant IDH can inhibit classical and alternative complement pathways and directly inhibit T-cell responses by metabolizing isocitrate to D-2-Hydroxyglutaric acid (2-HG). IDH has shown clinically relevant efficacy as a potential target for immunotherapy. This article intends to summarize the research progress in the immunosuppressive microenvironment and immunotherapy of IDH-mutant glioma in recent years in an attempt to provide new ideas for the study of occurrence, progression, and treatment of IDH-mutant glioma.
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Affiliation(s)
- Dongming Yan
- Department of Neurosurgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Weicheng Li
- Department of Neurosurgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qibing Liu
- Department of Pharmacology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, China
- Department of Pharmacy, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- *Correspondence: Qibing Liu, ; Kun Yang,
| | - Kun Yang
- Department of Neurosurgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- *Correspondence: Qibing Liu, ; Kun Yang,
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9
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Singh K, Hotchkiss KM, Patel KK, Wilkinson DS, Mohan AA, Cook SL, Sampson JH. Enhancing T Cell Chemotaxis and Infiltration in Glioblastoma. Cancers (Basel) 2021; 13:5367. [PMID: 34771532 PMCID: PMC8582389 DOI: 10.3390/cancers13215367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma is an immunologically 'cold' tumor, which are characterized by absent or minimal numbers of tumor-infiltrating lymphocytes (TILs). For those tumors that have been invaded by lymphocytes, they are profoundly exhausted and ineffective. While many immunotherapy approaches seek to reinvigorate immune cells at the tumor, this requires TILs to be present. Therefore, to unleash the full potential of immunotherapy in glioblastoma, the trafficking of lymphocytes to the tumor is highly desirable. However, the process of T cell recruitment into the central nervous system (CNS) is tightly regulated. Naïve T cells may undergo an initial licensing process to enter the migratory phenotype necessary to enter the CNS. T cells then must express appropriate integrins and selectin ligands to interact with transmembrane proteins at the blood-brain barrier (BBB). Finally, they must interact with antigen-presenting cells and undergo further licensing to enter the parenchyma. These T cells must then navigate the tumor microenvironment, which is rich in immunosuppressive factors. Altered tumoral metabolism also interferes with T cell motility. In this review, we will describe these processes and their mediators, along with potential therapeutic approaches to enhance trafficking. We also discuss safety considerations for such approaches as well as potential counteragents.
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Affiliation(s)
- Kirit Singh
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC 27710, USA; (K.M.H.); (K.K.P.); (D.S.W.); (A.A.M.); (S.L.C.)
| | | | | | | | | | | | - John H. Sampson
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC 27710, USA; (K.M.H.); (K.K.P.); (D.S.W.); (A.A.M.); (S.L.C.)
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10
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Chuntova P, Hou Y, Naka R, Yamamichi A, Chen T, Goretsky Y, Hatae R, Nejo T, Kohanbash G, Mende AL, Montoya M, Downey KM, Diebold D, Skinner J, Liang HE, Schwer B, Okada H. Novel EGFRvIII-CAR transgenic mice for rigorous preclinical studies in syngeneic mice. Neuro Oncol 2021; 24:259-272. [PMID: 34347086 DOI: 10.1093/neuonc/noab182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Rigorous preclinical studies of chimeric antigen receptor (CAR) immunotherapy will require large quantities of consistent and high-quality CAR-transduced T (CART)-cells that can be used in syngeneic mouse glioblastoma (GBM) models. To this end, we developed a novel transgenic (Tg) mouse strain with a fully murinized CAR targeting epidermal growth factor receptor variant III (EGFRvIII). METHODS We first established the murinized version of EGFRvIII-CAR and validated its function using a retroviral vector (RV) in C57BL/6J mice bearing syngeneic SB28 GBM expressing EGFRvIII. Next, we created C57BL/6J-background Tg mice carrying the anti-EGFRvIII-CAR downstream of a Lox-Stop-Lox cassette in the Rosa26 locus. We bred these mice with CD4-Cre Tg mice to allow CAR expression on T-cells and evaluated the function of the CART-cells both in vitro and in vivo. To inhibit immunosuppressive myeloid cells within SB28 GBM, we also evaluated a combination approach of CART and an anti-EP4 compound (ONO-AE3-208). RESULTS Both RV- and Tg-CART-cells demonstrated specific cytotoxic activities against SB28-EGFRvIII cells. A single intravenous infusion of EGFRvIII-CART-cells prolonged the survival of glioma-bearing mice when preceded by a lymphodepletion regimen with recurrent tumors displaying profound EGFRvIII loss. The addition of ONO-AE3-208 resulted in long-term survival in a fraction of CART-treated mice and those survivors demonstrated delayed growth of subcutaneously re-challenged both EGFRvIII + and parental EGFRvIII - SB28. CONCLUSION Our new syngeneic CAR Tg mouse model can serve as a useful tool to address clinically relevant questions and develop future immunotherapeutic strategies.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Bjoern Schwer
- Department of Neurological Surgery.,The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research.,Kavli Institute for Fundamental Neuroscience
| | - Hideho Okada
- Department of Neurological Surgery.,Helen Diller Family Comprehensive Cancer Center.,University of California San Francisco, San Francisco, California, The Parker Institute for Cancer Immunotherapy
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11
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Vitanza NA, Johnson AJ, Wilson AL, Brown C, Yokoyama JK, Künkele A, Chang CA, Rawlings-Rhea S, Huang W, Seidel K, Albert CM, Pinto N, Gust J, Finn LS, Ojemann JG, Wright J, Orentas RJ, Baldwin M, Gardner RA, Jensen MC, Park JR. Locoregional infusion of HER2-specific CAR T cells in children and young adults with recurrent or refractory CNS tumors: an interim analysis. Nat Med 2021; 27:1544-1552. [PMID: 34253928 DOI: 10.1038/s41591-021-01404-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/25/2021] [Indexed: 12/13/2022]
Abstract
Locoregional delivery of chimeric antigen receptor (CAR) T cells has resulted in objective responses in adults with glioblastoma, but the feasibility and tolerability of this approach is yet to be evaluated for pediatric central nervous system (CNS) tumors. Here we show that engineering of a medium-length CAR spacer enhances the therapeutic efficacy of human erb-b2 receptor tyrosine kinase 2 (HER2)-specific CAR T cells in an orthotopic xenograft medulloblastoma model. We translated these findings into BrainChild-01 ( NCT03500991 ), an ongoing phase 1 clinical trial at Seattle Children's evaluating repetitive locoregional dosing of these HER2-specific CAR T cells to children and young adults with recurrent/refractory CNS tumors, including diffuse midline glioma. Primary objectives are assessing feasibility, safety and tolerability; secondary objectives include assessing CAR T cell distribution and disease response. In the outpatient setting, patients receive infusions via CNS catheter into either the tumor cavity or the ventricular system. The initial three patients experienced no dose-limiting toxicity and exhibited clinical, as well as correlative laboratory, evidence of local CNS immune activation, including high concentrations of CXCL10 and CCL2 in the cerebrospinal fluid. This interim report supports the feasibility of generating HER2-specific CAR T cells for repeated dosing regimens and suggests that their repeated intra-CNS delivery might be well tolerated and activate a localized immune response in pediatric and young adult patients.
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Affiliation(s)
- Nicholas A Vitanza
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA. .,Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.
| | - Adam J Johnson
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | - Ashley L Wilson
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | - Christopher Brown
- Seattle Children's Therapeutics, Seattle, WA, USA.,Therapeutic Cell Production Core, Seattle Children's Research Institute, Seattle, WA, USA
| | - Jason K Yokoyama
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | - Annette Künkele
- Department of Pediatric Oncology and Hematology, Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Cindy A Chang
- Office of Animal Care, Seattle Children's Research Institute, Seattle, WA, USA
| | - Stephanie Rawlings-Rhea
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | - Wenjun Huang
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | | | - Catherine M Albert
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.,Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Navin Pinto
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.,Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Juliane Gust
- Department of Neurology, University of Washington, Seattle, WA, USA.,Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Laura S Finn
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA.,Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - Jeffrey G Ojemann
- Division of Neurosurgery, Department of Neurological Surgery, Seattle Children's Hospital, Seattle, WA, USA
| | - Jason Wright
- Department of Radiology, Seattle Children's Hospital, Seattle, WA, USA
| | - Rimas J Orentas
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA
| | - Michael Baldwin
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Rebecca A Gardner
- The Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA.,Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA
| | - Michael C Jensen
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA.,Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Julie R Park
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, University of Washington, Seattle, WA, USA.,Seattle Children's Therapeutics, Seattle, WA, USA.,Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, WA, USA
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12
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Ohkuri T, Kosaka A, Ikeura M, Salazar AM, Okada H. IFN-γ- and IL-17-producing CD8 + T (Tc17-1) cells in combination with poly-ICLC and peptide vaccine exhibit antiglioma activity. J Immunother Cancer 2021; 9:jitc-2021-002426. [PMID: 34193567 PMCID: PMC8246372 DOI: 10.1136/jitc-2021-002426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2021] [Indexed: 12/11/2022] Open
Abstract
Background While adoptive transfer of T-cells has been a major medical breakthrough for patients with B cell malignancies, the development of safe and effective T-cell-based immunotherapy for central nervous system (CNS) tumors, such as glioblastoma (GBM), still needs to overcome multiple challenges, including effective homing and persistence of T-cells. Based on previous observations that interleukin (IL)-17-producing T-cells can traffic to the CNS in autoimmune conditions, we evaluated CD8+ T-cells that produce IL-17 and interferon-γ (IFN-γ) (Tc17-1) cells in a preclinical GBM model. Methods We differentiated Pmel-1 CD8+ T-cells into Tc17-1 cells and compared their phenotypic and functional characteristics with those of IFN-γ-producing CD8+ T (Tc1) and IL-17-producing CD8+ T (Tc17) cells. We also evaluated the therapeutic efficacy, persistence, and tumor-homing of Tc17-1 cells in comparison to Tc1 cells using a mouse GL261 glioma model. Results In vitro, Tc17-1 cells demonstrated profiles of both Tc1 and Tc17 cells, including production of both IFN-γ and IL-17, although Tc17-1 cells demonstrated lesser degrees of antigen-specific cytotoxic activity compared with Tc1 cells. In mice-bearing intracranial GL261-Quad tumor and treated with temozolomide, Tc1 cells, but not Tc17-1, showed a significant prolongation of survival. However, when the T-cell transfer was combined with poly-ICLC and Pmel-1 peptide vaccine, both Tc1 and Tc17-1 cells exhibited significantly prolonged survival associated with upregulation of very late activation antigen−4 on Tc17-1 cells in vivo. Glioma cells that recurred following the therapy lost the susceptibility to Pmel-1-derived cytotoxic T-cells, indicating that immuno-editing was a mechanism of the acquired resistance. Conclusions Tc17-1 cells were equally effective as Tc1 cells when combined with poly-ICLC and peptide vaccine treatment.
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Affiliation(s)
- Takayuki Ohkuri
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Brain Tumor Program, University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, PA, USA
| | - Akemi Kosaka
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Brain Tumor Program, University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, PA, USA
| | - Maki Ikeura
- Brain Tumor Program, University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, PA, USA
| | | | - Hideho Okada
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA .,Brain Tumor Program, University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, Pittsburgh, PA, USA.,Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA.,Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
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13
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Takacs GP, Flores-Toro JA, Harrison JK. Modulation of the chemokine/chemokine receptor axis as a novel approach for glioma therapy. Pharmacol Ther 2021; 222:107790. [PMID: 33316289 PMCID: PMC8122077 DOI: 10.1016/j.pharmthera.2020.107790] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023]
Abstract
Chemokines are a large subfamily of cytokines known for their ability to facilitate cell migration, most notably leukocytes, throughout the body. Chemokines are necessary for a functioning immune system in both health and disease and have received considerable attention for their roles in orchestrating temporal-spatial regulation of immune cell populations in cancer. Gliomas comprise a group of common central nervous system (CNS) primary tumors that are extremely challenging to treat. Immunotherapy approaches for highly malignant brain tumors offer an exciting new avenue for therapeutic intervention but so far, have seen limited successful clinical outcomes. Herein we focus on important chemokine/chemokine receptor systems in the regulation of pro- and anti-tumor mechanisms, highlighting potential therapeutic advantages of modulating these systems in malignant gliomas and other cancers.
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Affiliation(s)
- Gregory P Takacs
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Joseph A Flores-Toro
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Jeffrey K Harrison
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
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14
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St Paul M, Ohashi PS. The Roles of CD8 + T Cell Subsets in Antitumor Immunity. Trends Cell Biol 2020; 30:695-704. [PMID: 32624246 DOI: 10.1016/j.tcb.2020.06.003] [Citation(s) in RCA: 228] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/04/2020] [Accepted: 06/09/2020] [Indexed: 12/13/2022]
Abstract
Effector CD8+ T cells are typically thought to be a homogenous group of cytotoxic cells that produce interferon-(IFN) γ. However, recent findings have challenged this notion because multiple subsets of CD8+ T cells have been described, each with distinct effector functions and cytotoxic potential. These subsets, referred to as the Tc subsets, have also been detected in tumor microenvironments (TMEs), where they potentially influence the antitumor response and patient outcomes. In this review, we highlight the prevalence and roles of Tc subsets in the TME. We also discuss their therapeutic applications in the context of adoptive immunotherapy to treat cancer.
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Affiliation(s)
- Michael St Paul
- Princess Margaret Cancer Center, University Health Network, Toronto, ON, M5G 2C1, Canada; Department of Immunology, University of Toronto, Toronto, ON, M5S 1C1, Canada
| | - Pamela S Ohashi
- Princess Margaret Cancer Center, University Health Network, Toronto, ON, M5G 2C1, Canada; Department of Immunology, University of Toronto, Toronto, ON, M5S 1C1, Canada.
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15
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St Paul M, Saibil SD, Lien SC, Han S, Sayad A, Mulder DT, Garcia-Batres CR, Elford AR, Israni-Winger K, Robert-Tissot C, Zon M, Katz SR, Shaw PA, Clarke BA, Bernardini MQ, Nguyen LT, Haibe-Kains B, Pugh TJ, Ohashi PS. IL6 Induces an IL22 + CD8 + T-cell Subset with Potent Antitumor Function. Cancer Immunol Res 2020; 8:321-333. [PMID: 31964625 DOI: 10.1158/2326-6066.cir-19-0521] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/30/2019] [Accepted: 01/13/2020] [Indexed: 11/16/2022]
Abstract
CD8+ T cells can be polarized into several different subsets as defined by the cytokines they produce and the transcription factors that govern their differentiation. Here, we identified the polarizing conditions to induce an IL22-producing CD8+ Tc22 subset, which is dependent on IL6 and the aryl hydrocarbon receptor transcription factor. Further characterization showed that this subset was highly cytolytic and expressed a distinct cytokine profile and transcriptome relative to other subsets. In addition, polarized Tc22 were able to control tumor growth as well as, if not better than, the traditional IFNγ-producing Tc1 subset. Tc22s were also found to infiltrate the tumors of human patients with ovarian cancer, comprising up to approximately 30% of expanded CD8+ tumor-infiltrating lymphocytes (TIL). Importantly, IL22 production in these CD8+ TILs correlated with improved recurrence-free survival. Given the antitumor properties of Tc22 cells, it may be prudent to polarize T cells to the Tc22 lineage when using chimeric antigen receptor (CAR)-T or T-cell receptor (TCR) transduction-based immunotherapies.
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MESH Headings
- Animals
- Basic Helix-Loop-Helix Transcription Factors/immunology
- Cell Polarity/immunology
- Female
- Humans
- Immunotherapy, Adoptive/methods
- Interleukin-6/biosynthesis
- Interleukin-6/genetics
- Interleukin-6/immunology
- Interleukin-6/pharmacology
- Interleukins/immunology
- Lymphocytes, Tumor-Infiltrating/drug effects
- Lymphocytes, Tumor-Infiltrating/immunology
- Melanoma, Experimental/genetics
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Melanoma, Experimental/therapy
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/pathology
- Ovarian Neoplasms/therapy
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- Receptors, Aryl Hydrocarbon/immunology
- T-Box Domain Proteins/immunology
- T-Lymphocyte Subsets/drug effects
- T-Lymphocyte Subsets/immunology
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Helper-Inducer/drug effects
- T-Lymphocytes, Helper-Inducer/immunology
- Transcriptome
- Tumor Cells, Cultured
- Interleukin-22
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Affiliation(s)
- Michael St Paul
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Samuel D Saibil
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Scott C Lien
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - SeongJun Han
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Azin Sayad
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - David T Mulder
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | | | - Alisha R Elford
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Kavita Israni-Winger
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Céline Robert-Tissot
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Michael Zon
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Sarah Rachel Katz
- Division of Gynecologic Oncology, University Health Network, Toronto, Ontario, Canada
| | - Patricia A Shaw
- Department of Laboratory Medicine and Pathobiology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Blaise A Clarke
- Department of Laboratory Medicine and Pathobiology, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Marcus Q Bernardini
- Division of Gynecologic Oncology, University Health Network, Toronto, Ontario, Canada
| | - Linh T Nguyen
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Benjamin Haibe-Kains
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Department of Computer Science, University of Toronto, Toronto, Ontario, Canada
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
- Vector Institute for Artificial Intelligence, Toronto, Ontario, Canada
| | - Trevor J Pugh
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Pamela S Ohashi
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada.
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
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16
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Lorger M, Andreou T, Fife C, James F. Immune Checkpoint Blockade - How Does It Work in Brain Metastases? Front Mol Neurosci 2019; 12:282. [PMID: 31824260 PMCID: PMC6881300 DOI: 10.3389/fnmol.2019.00282] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 11/05/2019] [Indexed: 01/13/2023] Open
Abstract
Immune checkpoints restrain the immune system following its activation and their inhibition unleashes anti-tumor immune responses. Immune checkpoint inhibitors revolutionized the treatment of several cancer types, including melanoma, and immune checkpoint blockade with anti-PD-1 and anti-CTLA-4 antibodies is becoming a frontline therapy in metastatic melanoma. Notably, up to 60% of metastatic melanoma patients develop metastases in the brain. Brain metastases (BrM) are also very common in patients with lung and breast cancer, and occur in ∼20-40% of patients across different cancer types. Metastases in the brain are associated with poor prognosis due to the lack of efficient therapies. In the past, patients with BrM used to be excluded from immune-based clinical trials due to the assumption that such therapies may not work in the context of "immune-specialized" environment in the brain, or may cause harm. However, recent trials in patients with BrM demonstrated safety and intracranial activity of anti-PD-1 and anti-CTLA-4 therapy. We here discuss how immune checkpoint therapy works in BrM, with focus on T cells and the cross-talk between BrM, the immune system, and tumors growing outside the brain. We discuss major open questions in our understanding of what is required for an effective immune checkpoint inhibitor therapy in BrM.
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Affiliation(s)
- Mihaela Lorger
- Institute of Medical Research at St. James’s, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Tereza Andreou
- Institute of Medical Research at St. James’s, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Christopher Fife
- Institute of Medical Research at St. James’s, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Fiona James
- Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
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17
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Chuntova P, Downey KM, Hegde B, Almeida ND, Okada H. Genetically Engineered T-Cells for Malignant Glioma: Overcoming the Barriers to Effective Immunotherapy. Front Immunol 2019; 9:3062. [PMID: 30740109 PMCID: PMC6357938 DOI: 10.3389/fimmu.2018.03062] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/11/2018] [Indexed: 12/12/2022] Open
Abstract
Malignant gliomas carry a dismal prognosis. Conventional treatment using chemo- and radiotherapy has limited efficacy with adverse events. Therapy with genetically engineered T-cells, such as chimeric antigen receptor (CAR) T-cells, may represent a promising approach to improve patient outcomes owing to their potential ability to attack highly infiltrative tumors in a tumor-specific manner and possible persistence of the adaptive immune response. However, the unique anatomical features of the brain and susceptibility of this organ to irreversible tissue damage have made immunotherapy especially challenging in the setting of glioma. With safety concerns in mind, multiple teams have initiated clinical trials using CAR T-cells in glioma patients. The valuable lessons learnt from those trials highlight critical areas for further improvement: tackling the issues of the antigen presentation and T-cell homing in the brain, immunosuppression in the glioma microenvironment, antigen heterogeneity and off-tumor toxicity, and the adaptation of existing clinical therapies to reflect the intricacies of immune response in the brain. This review summarizes the up-to-date clinical outcomes of CAR T-cell clinical trials in glioma patients and examines the most pressing hurdles limiting the efficacy of these therapies. Furthermore, this review uses these hurdles as a framework upon which to evaluate cutting-edge pre-clinical strategies aiming to overcome those barriers.
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Affiliation(s)
- Pavlina Chuntova
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Kira M Downey
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Bindu Hegde
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Neil D Almeida
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States.,George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Hideho Okada
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States.,The Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, CA, United States.,Cancer Immunotherapy Program, University of California, San Francisco, San Francisco, CA, United States
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18
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Congdon KL, Sanchez-Perez LA, Sampson JH. Effective effectors: How T cells access and infiltrate the central nervous system. Pharmacol Ther 2018; 197:52-60. [PMID: 30557632 DOI: 10.1016/j.pharmthera.2018.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Several Phase II and III clinical trials have demonstrated that immunotherapy can induce objective responses in otherwise refractory malignancies in tumors outside the central nervous system. In large part, effector T cells mediate much of the antitumor efficacy in these trials, and potent antitumor T cells can be generated through vaccination, immune checkpoint blockade, adoptive transfer, and genetic manipulation. However, activated T cells must still traffic to, infiltrate, and persist within tumor in order to mediate tumor lysis. These requirements for efficacy pose unique challenges for brain tumor immunotherapy, due to specific anatomical barriers and populations of specialized immune cells within the central nervous system that function to constrain immunity. Both autoimmune and infectious diseases of the central nervous system provide a wealth of information on how T cells can successfully migrate to the central nervous system and then engender sustained immune responses. In this review, we will examine the commonalities in the efferent arm of immunity to the brain for autoimmunity, infection, and tumor immunotherapy to identify key factors underlying potent immune responses.
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Affiliation(s)
- Kendra L Congdon
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC 27710, United States; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC 27710, United States; Department of Neurosurgery, Duke University School of Medicine, Durham, NC 27710, United States
| | - Luis A Sanchez-Perez
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC 27710, United States; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC 27710, United States; Department of Neurosurgery, Duke University School of Medicine, Durham, NC 27710, United States
| | - John H Sampson
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC 27710, United States; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC 27710, United States; Department of Neurosurgery, Duke University School of Medicine, Durham, NC 27710, United States; Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27710, United States; Department of Pathology, Duke University School of Medicine, Durham, NC 27710, United States.
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19
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Abstract
Glioblastoma (GBM) is the deadliest type of brain tumor, and glioma stem cells (GSCs) contribute to tumor recurrence and therapeutic resistance. Thus, an oncolytic virus targeting GSCs may be useful for improving GBM treatment. Because Zika virus (ZIKV) has an oncolytic tropism for infecting GSCs, we investigated the safety and efficacy of a live attenuated ZIKV vaccine candidate (ZIKV-LAV) for the treatment of human GBM in a GSC-derived orthotopic model. Intracerebral injection of ZIKV-LAV into mice caused no neurological symptoms or behavioral abnormalities. The neurovirulence of ZIKV-LAV was more attenuated than that of the licensed Japanese encephalitis virus LAV 14-14-2, underlining the superior safety of ZIKV-LAV for potential GBM treatment. Importantly, ZIKV-LAV significantly reduced intracerebral tumor growth and prolonged animal survival by selectively killing GSCs within the tumor. Mechanistically, ZIKV infection elicited antiviral immunity, inflammation, and GSC apoptosis. Together, these results further support the clinical development of ZIKV-LAV for GBM therapy.IMPORTANCE Glioblastoma (GBM), the deadliest type of brain tumor, is currently incurable because of its high recurrence rate after traditional treatments, including surgery to remove the main part of the tumor and radiation and chemotherapy to target residual tumor cells. These treatments fail mainly due to the presence of a cell subpopulation called glioma stem cells (GSCs), which are resistant to radiation and chemotherapy and capable of self-renewal and tumorigenicity. Because Zika virus (ZIKV) has an oncolytic tropism for infecting GSCs, we tested a live attenuated ZIKV vaccine candidate (ZIKV-LAV) for the treatment of human GBM in a human GSC-derived orthotopic model. Our results showed that ZIKV-LAV retained good efficacy against glioblastoma by selectively killing GSCs within the tumor. In addition, ZIKV-LAV exhibited an excellent safety profile upon intracerebral injection into the treated animals. The good balance between the safety of ZIKV-LAV and its efficacy against human GSCs suggests that it is a potential candidate for combination with the current treatment regimen for GBM therapy.
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20
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Woods AN, Wilson AL, Srivinisan N, Zeng J, Dutta AB, Peske JD, Tewalt EF, Gregg RK, Ferguson AR, Engelhard VH. Differential Expression of Homing Receptor Ligands on Tumor-Associated Vasculature that Control CD8 Effector T-cell Entry. Cancer Immunol Res 2017; 5:1062-1073. [PMID: 29097419 DOI: 10.1158/2326-6066.cir-17-0190] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 09/13/2017] [Accepted: 10/24/2017] [Indexed: 12/30/2022]
Abstract
Although CD8+ T cells are critical for controlling tumors, how they are recruited and home to primary and metastatic lesions is incompletely understood. We characterized the homing receptor (HR) ligands on tumor vasculature to determine what drives their expression and their role in T-cell entry. The anatomic location of B16-OVA tumors affected the expression of E-selectin, MadCAM-1, and VCAM-1, whereas the HR ligands CXCL9 and ICAM-1 were expressed on the vasculature regardless of location. VCAM-1 and CXCL9 expression was induced by IFNγ-secreting adaptive immune cells. VCAM-1 and CXCL9/10 enabled CD8+ T-cell effectors expressing α4β1 integrin and CXCR3 to enter both subcutaneous and peritoneal tumors, whereas E-selectin enabled E-selectin ligand+ effectors to enter subcutaneous tumors. However, MadCAM-1 did not mediate α4β7+ effector entry into peritoneal tumors due to an unexpected lack of luminal expression. These data establish the relative importance of certain HRs expressed on activated effectors and certain HR ligands expressed on tumor vasculature in the effective immune control of tumors. Cancer Immunol Res; 5(12); 1062-73. ©2017 AACR.
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Affiliation(s)
- Amber N Woods
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Ashley L Wilson
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Nithya Srivinisan
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Jianhao Zeng
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Arun B Dutta
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - J David Peske
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Eric F Tewalt
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Randal K Gregg
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Andrew R Ferguson
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Victor H Engelhard
- Carter Immunology Center and Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia.
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21
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Kohanbash G, Carrera DA, Shrivastav S, Ahn BJ, Jahan N, Mazor T, Chheda ZS, Downey KM, Watchmaker PB, Beppler C, Warta R, Amankulor NA, Herold-Mende C, Costello JF, Okada H. Isocitrate dehydrogenase mutations suppress STAT1 and CD8+ T cell accumulation in gliomas. J Clin Invest 2017; 127:1425-1437. [PMID: 28319047 DOI: 10.1172/jci90644] [Citation(s) in RCA: 293] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/19/2017] [Indexed: 01/16/2023] Open
Abstract
Mutations in the isocitrate dehydrogenase genes IDH1 and IDH2 are among the first genetic alterations observed during the development of lower-grade glioma (LGG). LGG-associated IDH mutations confer gain-of-function activity by converting α-ketoglutarate to the oncometabolite R-2-hydroxyglutarate (2HG). Clinical samples and gene expression data from The Cancer Genome Atlas (TCGA) demonstrate reduced expression of cytotoxic T lymphocyte-associated genes and IFN-γ-inducible chemokines, including CXCL10, in IDH-mutated (IDH-MUT) tumors compared with IDH-WT tumors. Given these findings, we have investigated the impact of IDH mutations on the immunological milieu in LGG. In immortalized normal human astrocytes (NHAs) and syngeneic mouse glioma models, the introduction of mutant IDH1 or treatment with 2HG reduced levels of CXCL10, which was associated with decreased production of STAT1, a regulator of CXCL10. Expression of mutant IDH1 also suppressed the accumulation of T cells in tumor sites. Reductions in CXCL10 and T cell accumulation were reversed by IDH-C35, a specific inhibitor of mutant IDH1. Furthermore, IDH-C35 enhanced the efficacy of vaccine immunotherapy in mice bearing IDH-MUT gliomas. Our findings demonstrate a mechanism of immune evasion in IDH-MUT gliomas and suggest that specific inhibitors of mutant IDH may improve the efficacy of immunotherapy in patients with IDH-MUT gliomas.
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22
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Dutoit V, Migliorini D, Dietrich PY, Walker PR. Immunotherapy of Malignant Tumors in the Brain: How Different from Other Sites? Front Oncol 2016; 6:256. [PMID: 28003994 PMCID: PMC5141244 DOI: 10.3389/fonc.2016.00256] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/24/2016] [Indexed: 12/25/2022] Open
Abstract
Immunotherapy is now advancing at remarkable pace for tumors located in various tissues, including the brain. Strategies launched decades ago, such as tumor antigen-specific therapeutic vaccines and adoptive transfer of tumor-infiltrating lymphocytes are being complemented by molecular engineering approaches allowing the development of tumor-specific TCR transgenic and chimeric antigen receptor T cells. In addition, the spectacular results obtained in the last years with immune checkpoint inhibitors are transfiguring immunotherapy, these agents being used both as single molecules, but also in combination with other immunotherapeutic modalities. Implementation of these various strategies is ongoing for more and more malignancies, including tumors located in the brain, raising the question of the immunological particularities of this site. This may necessitate cautious selection of tumor antigens, minimizing the immunosuppressive environment and promoting efficient T cell trafficking to the tumor. Once these aspects are taken into account, we might efficiently design immunotherapy for patients suffering from tumors located in the brain, with beneficial clinical outcome.
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Affiliation(s)
- Valérie Dutoit
- Laboratory of Tumor Immunology, Center of Oncology, Geneva University Hospitals and University of Geneva , Geneva , Switzerland
| | - Denis Migliorini
- Oncology, Center of Oncology, Geneva University Hospitals and University of Geneva , Geneva , Switzerland
| | - Pierre-Yves Dietrich
- Oncology, Center of Oncology, Geneva University Hospitals and University of Geneva , Geneva , Switzerland
| | - Paul R Walker
- Laboratory of Tumor Immunology, Center of Oncology, Geneva University Hospitals and University of Geneva , Geneva , Switzerland
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Liu M, Zhou J, Chen Z, Cheng ASL. Understanding the epigenetic regulation of tumours and their microenvironments: opportunities and problems for epigenetic therapy. J Pathol 2016; 241:10-24. [PMID: 27770445 DOI: 10.1002/path.4832] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/06/2016] [Accepted: 10/18/2016] [Indexed: 12/13/2022]
Abstract
The tumour microenvironment plays an instrumental role in cancer development, progression and treatment response/resistance. Accumulating evidence is underscoring the fundamental importance of epigenetic regulation in tumour immune evasion. Following many pioneering discoveries demonstrating malignant transformation through epigenetic anomalies ('epimutations'), there is also a growing emphasis on elucidating aberrant epigenetic mechanisms that reprogramme the milieu of tumour-associated immune and stromal cells towards an immunosuppressive state. Pharmacological inhibition of DNA methylation and histone modifications can augment the efficiency of immune checkpoint blockage, and unleash anti-tumour T-cell responses. However, these non-specific agents also represent a 'double-edged sword', as they can also reactivate gene transcription of checkpoint molecules, interrupting immune surveillance programmes. By understanding the impact of epigenetic control on the tumour microenvironment, rational combinatorial epigenetic and checkpoint blockage therapies have the potential to harness the immune system for the treatment of cancer. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Man Liu
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Jingying Zhou
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Zhiwei Chen
- AIDS Institute and Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, PR China
| | - Alfred Sze-Lok Cheng
- School of Biomedical Sciences and State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, PR China
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Farber SH, Tsvankin V, Narloch JL, Kim GJ, Salama AKS, Vlahovic G, Blackwell KL, Kirkpatrick JP, Fecci PE. Embracing rejection: Immunologic trends in brain metastasis. Oncoimmunology 2016; 5:e1172153. [PMID: 27622023 DOI: 10.1080/2162402x.2016.1172153] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/22/2016] [Accepted: 03/23/2016] [Indexed: 12/25/2022] Open
Abstract
Brain metastases represent the most common type of brain tumor. These tumors offer a dismal prognosis and significantly impact quality of life for patients. Their capacity for central nervous system (CNS) invasion is dependent upon induced disruptions to the blood-brain barrier (BBB), alterations to the brain microenvironment, and mechanisms for escaping CNS immunosurveillance. In the emerging era of immunotherapy, understanding how metastases are influenced by the immunologic peculiarities of the CNS will be crucial to forging therapeutic advances. In this review, the immunology of brain metastasis is explored.
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Affiliation(s)
- S Harrison Farber
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC, USA; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA
| | - Vadim Tsvankin
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC, USA; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA
| | - Jessica L Narloch
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Grace J Kim
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - April K S Salama
- Division of Medical Oncology, Duke University Medical Center , Durham, NC, USA
| | - Gordana Vlahovic
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Division of Medical Oncology, Duke University Medical Center, Durham, NC, USA
| | - Kimberly L Blackwell
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - John P Kirkpatrick
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Peter E Fecci
- Duke Brain Tumor Immunotherapy Program, Department of Neurosurgery, Duke University Medical Center, Durham, NC, USA; The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA; Department of Pathology, Duke University Medical Center, Durham, NC, USA
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25
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Pollack IF, Jakacki RI, Butterfield LH, Hamilton RL, Panigrahy A, Normolle DP, Connelly AK, Dibridge S, Mason G, Whiteside TL, Okada H. Immune responses and outcome after vaccination with glioma-associated antigen peptides and poly-ICLC in a pilot study for pediatric recurrent low-grade gliomas. Neuro Oncol 2016; 18:1157-68. [PMID: 26984745 DOI: 10.1093/neuonc/now026] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/29/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Low-grade gliomas (LGGs) are the most common brain tumors of childhood. Although surgical resection is curative for well-circumscribed superficial lesions, tumors that are infiltrative or arise from deep structures are therapeutically challenging, and new treatment approaches are needed. Having identified a panel of glioma-associated antigens (GAAs) overexpressed in these tumors, we initiated a pilot trial of vaccinations with peptides for GAA epitopes in human leukocyte antigen-A2+ children with recurrent LGG that had progressed after at least 2 prior regimens. METHODS Peptide epitopes for 3 GAAs (EphA2, IL-13Rα2, and survivin) were emulsified in Montanide-ISA-51 and administered subcutaneously adjacent to intramuscular injections of polyinosinic-polycytidylic acid stabilized by lysine and carboxymethylcellulose every 3 weeks for 8 courses, followed by booster vaccines every 6 weeks. Primary endpoints were safety and T-lymphocyte responses against GAA epitopes. Treatment response was evaluated clinically and by MRI. RESULTS Fourteen children were enrolled. Other than grade 3 urticaria in one child, no regimen-limiting toxicity was encountered. Vaccination induced immunoreactivity to at least one vaccine-targeted GAA in all 12 evaluable patients: to IL-13Rα2 in 3, EphA2 in 11, and survivin in 3. One child with a metastatic LGG had asymptomatic pseudoprogression noted 6 weeks after starting vaccination, followed by dramatic disease regression with >75% shrinkage of primary tumor and regression of metastatic disease, persisting >57 months. Three other children had sustained partial responses, lasting >10, >31, and >45 months, and one had a transient response. CONCLUSIONS GAA peptide vaccination in children with recurrent LGGs is generally well tolerated, with preliminary evidence of immunological and clinical activity.
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Affiliation(s)
- Ian F Pollack
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Regina I Jakacki
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Lisa H Butterfield
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Ronald L Hamilton
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Ashok Panigrahy
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Daniel P Normolle
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Angela K Connelly
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Sharon Dibridge
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Gary Mason
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Theresa L Whiteside
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
| | - Hideho Okada
- Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., H.O.); Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania (R.I.J., A.K.C., S.D., G.M.); Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania (R.L.H., T.L.W.); Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B.), Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., H.O.), Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania (A.P.), Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania (L.H.B., T.L.W.), University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., A.P., A.K.C., S.D., G.M.); University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, Pennsylvania (I.F.P., R.I.J., L.H.B., R.L.H., D.P.N., G.M., T.L.W., H.O.); Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania (D.P.N.); Department of Neurosurgery, University of CaliforniaSan Francisco, San Francisco, California (H.O.)
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Fujita M, Matsui T, Ito A. Biomedical insights into cell adhesion and migration-from a viewpoint of central nervous system tumor immunology. Front Cell Dev Biol 2015; 3:55. [PMID: 26528477 PMCID: PMC4604325 DOI: 10.3389/fcell.2015.00055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/08/2015] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mitsugu Fujita
- Department of Microbiology, Faculty of Medicine, Kindai University Osaka, Japan
| | - Takaaki Matsui
- Gene Regulation Research, Graduate School of Biological Sciences, Nara Institute of Science and Technology Nara, Japan
| | - Akihiko Ito
- Department of Pathology, Faculty of Medicine, Kindai University Osaka, Japan
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27
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Derouazi M, Di Berardino-Besson W, Belnoue E, Hoepner S, Walther R, Benkhoucha M, Teta P, Dufour Y, Yacoub Maroun C, Salazar AM, Martinvalet D, Dietrich PY, Walker PR. Novel Cell-Penetrating Peptide-Based Vaccine Induces Robust CD4+ and CD8+ T Cell-Mediated Antitumor Immunity. Cancer Res 2015; 75:3020-31. [PMID: 26116496 DOI: 10.1158/0008-5472.can-14-3017] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 05/02/2015] [Indexed: 12/19/2022]
Abstract
Vaccines that can coordinately induce multi-epitope T cell-mediated immunity, T helper functions, and immunologic memory may offer effective tools for cancer immunotherapy. Here, we report the development of a new class of recombinant protein cancer vaccines that deliver different CD8(+) and CD4(+) T-cell epitopes presented by MHC class I and class II alleles, respectively. In these vaccines, the recombinant protein is fused with Z12, a novel cell-penetrating peptide that promotes efficient protein loading into the antigen-processing machinery of dendritic cells. Z12 elicited an integrated and multi-epitopic immune response with persistent effector T cells. Therapy with Z12-formulated vaccines prolonged survival in three robust tumor models, with the longest survival in an orthotopic model of aggressive brain cancer. Analysis of the tumor sites showed antigen-specific T-cell accumulation with favorable modulation of the balance of the immune infiltrate. Taken together, the results offered a preclinical proof of concept for the use of Z12-formulated vaccines as a versatile platform for the development of effective cancer vaccines.
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Affiliation(s)
- Madiha Derouazi
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland.
| | | | | | - Sabine Hoepner
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland
| | - Romy Walther
- University of Toulouse, CNRS 5273, UMR STROMALab, Toulouse, France
| | - Mahdia Benkhoucha
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Patrick Teta
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland
| | - Yannick Dufour
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland
| | - Céline Yacoub Maroun
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland
| | | | - Denis Martinvalet
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Pierre-Yves Dietrich
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland
| | - Paul R Walker
- Geneva University Hospitals and University of Geneva, Centre of Oncology, Geneva, Switzerland.
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Transgene-derived overexpression of miR-17-92 in CD8+ T-cells confers enhanced cytotoxic activity. Biochem Biophys Res Commun 2015; 458:549-554. [PMID: 25677619 DOI: 10.1016/j.bbrc.2015.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/02/2015] [Indexed: 12/23/2022]
Abstract
MicroRNAs (miRs) play important roles in regulation of a variety of cell functions, including immune responses. We have previously demonstrated that miR-17-92 expression in T-cells enhances Th1 phenotype and provides a long-term protection against glioblastoma when co-expressed as a transgene in T-cells along with a chimeric antigen receptor. To further elucidate the function of miR-17-92 in tumor antigen-specific CD8(+) T-cells, we generated transgenic (Tg) mice in which CD8(+) T-cells overexpress transgene-derived miR-17-92 under the lck promoter as well as T-cell receptor specific for human gp10025-33 (Pmel-1) (miR-17-92/Pmel-Tg). CD8(+) T-cells from miR-17-92/Pmel-Tg mice demonstrated enhanced interferon (IFN)-γ production and cytotoxicity in response to the cognate antigen compared with those from control Pmel-Tg mice without the transgene for miR-17-92. In addition, miR-17-92/Pmel-Tg mouse-derived CD8(+)CD44(+) T-cells demonstrated increased frequencies of cells with memory phenotypes and IFN-γ production. We also found that miR-17-92/Pmel-Tg-derived CD8(+) T-cells expressed decreased levels of transforming growth factor (TGF)-β type II receptor (TGFBR2) on their surface, thereby resisting against suppressive effects of TGF-β1. Our findings suggest that engineering of tumor antigen-specific CD8(+) T-cells to express miR-17-92 may improve the potency of cancer immunotherapy.
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Okada H, Butterfield LH, Hamilton RL, Hoji A, Sakaki M, Ahn BJ, Kohanbash G, Drappatz J, Engh J, Amankulor N, Lively MO, Chan MD, Salazar AM, Shaw EG, Potter DM, Lieberman FS. Induction of robust type-I CD8+ T-cell responses in WHO grade 2 low-grade glioma patients receiving peptide-based vaccines in combination with poly-ICLC. Clin Cancer Res 2014; 21:286-94. [PMID: 25424847 DOI: 10.1158/1078-0432.ccr-14-1790] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE WHO grade 2 low-grade gliomas (LGG) with high risk factors for recurrence are mostly lethal despite current treatments. We conducted a phase I study to evaluate the safety and immunogenicity of subcutaneous vaccinations with synthetic peptides for glioma-associated antigen (GAA) epitopes in HLA-A2(+) adults with high-risk LGGs in the following three cohorts: (i) patients without prior progression, chemotherapy, or radiotherapy (RT); (ii) patients without prior progression or chemotherapy but with prior RT; and (iii) recurrent patients. EXPERIMENTAL DESIGN GAAs were IL13Rα2, EphA2, WT1, and Survivin. Synthetic peptides were emulsified in Montanide-ISA-51 and given every 3 weeks for eight courses with intramuscular injections of poly-ICLC, followed by q12 week booster vaccines. RESULTS Cohorts 1, 2, and 3 enrolled 12, 1, and 10 patients, respectively. No regimen-limiting toxicity was encountered except for one case with grade 3 fever, fatigue, and mood disturbance (cohort 1). ELISPOT assays demonstrated robust IFNγ responses against at least three of the four GAA epitopes in 10 and 4 cases of cohorts 1 and 3, respectively. Cohort 1 patients demonstrated significantly higher IFNγ responses than cohort 3 patients. Median progression-free survival (PFS) periods since the first vaccine are 17 months in cohort 1 (range, 10-47+) and 12 months in cohort 3 (range, 3-41+). The only patient with large astrocytoma in cohort 2 has been progression-free for more than 67 months since diagnosis. CONCLUSION The current regimen is well tolerated and induces robust GAA-specific responses in WHO grade 2 glioma patients. These results warrant further evaluations of this approach. Clin Cancer Res; 21(2); 286-94. ©2014 AACR.
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Affiliation(s)
- Hideho Okada
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Surgical Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
| | - Lisa H Butterfield
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Ronald L Hamilton
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Aki Hoji
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Masashi Sakaki
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Brian J Ahn
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Gary Kohanbash
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Jan Drappatz
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Johnathan Engh
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Nduka Amankulor
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Mark O Lively
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Michael D Chan
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | | | - Edward G Shaw
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Douglas M Potter
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Frank S Lieberman
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania. Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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30
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Combination of an agonistic anti-CD40 monoclonal antibody and the COX-2 inhibitor celecoxib induces anti-glioma effects by promotion of type-1 immunity in myeloid cells and T-cells. Cancer Immunol Immunother 2014; 63:847-57. [PMID: 24878890 DOI: 10.1007/s00262-014-1561-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 05/17/2014] [Indexed: 12/11/2022]
Abstract
Malignant gliomas are heavily infiltrated by immature myeloid cells that mediate immunosuppression. Agonistic CD40 monoclonal antibody (mAb) has been shown to activate myeloid cells and promote antitumor immunity. Our previous study has also demonstrated blockade of cyclooxygenase-2 (COX-2) reduces immunosuppressive myeloid cells, thereby suppressing glioma development in mice. We therefore hypothesized that a combinatory strategy to modulate myeloid cells via two distinct pathways, i.e., CD40/CD40L stimulation and COX-2 blockade, would enhance anti-glioma immunity. We used three different mouse glioma models to evaluate therapeutic effects and underlying mechanisms of a combination regimen with an agonist CD40 mAb and the COX-2 inhibitor celecoxib. Treatment of glioma-bearing mice with the combination therapy significantly prolonged survival compared with either anti-CD40 mAb or celecoxib alone. The combination regimen promoted maturation of CD11b(+) cells in both spleen and brain, and enhanced Cxcl10 while suppressing Arg1 in CD11b(+)Gr-1(+) cells in the brain. Anti-glioma activity of the combination regimen was T-cell dependent because depletion of CD4(+) and CD8(+) cells in vivo abrogated the anti-glioma effects. Furthermore, the combination therapy significantly increased the frequency of CD8(+) T-cells, enhanced IFN-γ-production and reduced CD4(+)CD25(+)Foxp3(+) T regulatory cells in the brain, and induced tumor-antigen-specific T-cell responses in lymph nodes. Our findings suggest that the combination therapy of anti-CD40 mAb with celecoxib enhances anti-glioma activities via promotion of type-1 immunity both in myeloid cells and T-cells.
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Ohno M, Ohkuri T, Kosaka A, Tanahashi K, June CH, Natsume A, Okada H. Expression of miR-17-92 enhances anti-tumor activity of T-cells transduced with the anti-EGFRvIII chimeric antigen receptor in mice bearing human GBM xenografts. J Immunother Cancer 2013; 1:21. [PMID: 24829757 PMCID: PMC4019893 DOI: 10.1186/2051-1426-1-21] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 12/05/2013] [Indexed: 01/09/2023] Open
Abstract
Background Expression of miR-17-92 enhances T-cell survival and interferon (IFN)-γ production. We previously reported that miR-17-92 is down-regulated in T-cells derived from glioblastoma (GBM) patients. We hypothesized that transgene-derived co-expression of miR17-92 and chimeric antigen receptor (CAR) in T-cells would improve the efficacy of adoptive transfer therapy against GBM. Methods We constructed novel lentiviral vectors for miR-17-92 (FG12-EF1a-miR-17/92) and a CAR consisting of an epidermal growth factor receptor variant III (EGFRvIII)-specific, single-chain variable fragment (scFv) coupled to the T-cell receptor CD3ζ chain signaling module and co-stimulatory motifs of CD137 (4-1BB) and CD28 in tandem (pELNS-3C10-CAR). Human T-cells were transduced with these lentiviral vectors, and their anti-tumor effects were evaluated both in vitro and in vivo. Results CAR-transduced T-cells (CAR-T-cells) exhibited potent, antigen-specific, cytotoxic activity against U87 GBM cells that stably express EGFRvIII (U87-EGFRvIII) and, when co-transduced with miR-17-92, exhibited improved survival in the presence of temozolomide (TMZ) compared with CAR-T-cells without miR-17-92 co-transduction. In mice bearing intracranial U87-EGFRvIII xenografts, CAR-T-cells with or without transgene-derived miR-17-92 expression demonstrated similar levels of therapeutic effect without demonstrating any uncontrolled growth of CAR-T-cells. However, when these mice were re-challenged with U87-EGFRvIII cells in their brains, mice receiving co-transduced CAR-T-cells exhibited improved protection compared with mice treated with CAR-T-cells without miR-17-92 co-transduction. Conclusion These results warrant the development of novel CAR-T-cell strategies that incorporate miR-17-92 to improve therapeutic potency, especially in patients with GBM.
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Affiliation(s)
- Masasuke Ohno
- Brain Tumor Program, University of Pittsburgh Cancer Institute, 1.19E Research Pavilion at the Hillman Cancer Center, 5117 Centre Ave, Pittsburgh, PA 15213, USA ; Department of Neurosurgery, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan ; Department of Neurological Surgery, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Takayuki Ohkuri
- Brain Tumor Program, University of Pittsburgh Cancer Institute, 1.19E Research Pavilion at the Hillman Cancer Center, 5117 Centre Ave, Pittsburgh, PA 15213, USA ; Department of Neurological Surgery, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Akemi Kosaka
- Brain Tumor Program, University of Pittsburgh Cancer Institute, 1.19E Research Pavilion at the Hillman Cancer Center, 5117 Centre Ave, Pittsburgh, PA 15213, USA ; Department of Neurological Surgery, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
| | - Kuniaki Tanahashi
- Department of Neurosurgery, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Carl H June
- Department of Pathology and Laboratory Medicine, Abramson Family Cancer Research Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Atsushi Natsume
- Department of Neurosurgery, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hideho Okada
- Brain Tumor Program, University of Pittsburgh Cancer Institute, 1.19E Research Pavilion at the Hillman Cancer Center, 5117 Centre Ave, Pittsburgh, PA 15213, USA ; Department of Neurological Surgery, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA ; Department of Surgery, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA ; Department of Immunology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 15213, USA
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32
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Bobanga ID, Petrosiute A, Huang AY. Chemokines as Cancer Vaccine Adjuvants. Vaccines (Basel) 2013; 1:444-62. [PMID: 24967094 PMCID: PMC4067044 DOI: 10.3390/vaccines1040444] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 08/31/2013] [Accepted: 09/26/2013] [Indexed: 02/07/2023] Open
Abstract
We are witnessing a new era of immune-mediated cancer therapies and vaccine development. As the field of cancer vaccines advances into clinical trials, overcoming low immunogenicity is a limiting step in achieving full success of this therapeutic approach. Recent discoveries in the many biological roles of chemokines in tumor immunology allow their exploitation in enhancing recruitment of antigen presenting cells (APCs) and effector cells to appropriate anatomical sites. This knowledge, combined with advances in gene therapy and virology, allows researchers to employ chemokines as potential vaccine adjuvants. This review will focus on recent murine and human studies that use chemokines as therapeutic anti-cancer vaccine adjuvants.
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Affiliation(s)
- Iuliana D. Bobanga
- Departments of General Surgery, School of Medicine, University Hospital Case Medical Center/Case Western Reserve University, Cleveland, OH 44106, USA
| | - Agne Petrosiute
- Departments of Pediatrics, School of Medicine, University Hospital Case Medical Center/Case Western Reserve University, Cleveland, OH 44106, USA
| | - Alex Y. Huang
- Departments of Pediatrics, School of Medicine, University Hospital Case Medical Center/Case Western Reserve University, Cleveland, OH 44106, USA
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33
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Ahn BJ, Pollack IF, Okada H. Immune-checkpoint blockade and active immunotherapy for glioma. Cancers (Basel) 2013; 5:1379-412. [PMID: 24202450 PMCID: PMC3875944 DOI: 10.3390/cancers5041379] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 10/24/2013] [Accepted: 10/24/2013] [Indexed: 02/01/2023] Open
Abstract
Cancer immunotherapy has made tremendous progress, including promising results in patients with malignant gliomas. Nonetheless, the immunological microenvironment of the brain and tumors arising therein is still believed to be suboptimal for sufficient antitumor immune responses for a variety of reasons, including the operation of “immune-checkpoint” mechanisms. While these mechanisms prevent autoimmunity in physiological conditions, malignant tumors, including brain tumors, actively employ these mechanisms to evade from immunological attacks. Development of agents designed to unblock these checkpoint steps is currently one of the most active areas of cancer research. In this review, we summarize recent progresses in the field of brain tumor immunology with particular foci in the area of immune-checkpoint mechanisms and development of active immunotherapy strategies. In the last decade, a number of specific monoclonal antibodies designed to block immune-checkpoint mechanisms have been developed and show efficacy in other cancers, such as melanoma. On the other hand, active immunotherapy approaches, such as vaccines, have shown encouraging outcomes. We believe that development of effective immunotherapy approaches should ultimately integrate those checkpoint-blockade agents to enhance the efficacy of therapeutic approaches. With these agents available, it is going to be quite an exciting time in the field. The eventual success of immunotherapies for brain tumors will be dependent upon not only an in-depth understanding of immunology behind the brain and brain tumors, but also collaboration and teamwork for the development of novel trials that address multiple layers of immunological challenges in gliomas.
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Affiliation(s)
- Brian J. Ahn
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; E-Mail:
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA; E-Mail:
| | - Ian F. Pollack
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA; E-Mail:
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Hideho Okada
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; E-Mail:
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, USA; E-Mail:
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-412-623-3111; Fax: +1-412-623-1415
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Migliorini D, Dietrich PY, Walker PR. Maximizing output from current glioma vaccine trials to construct robust next-generation immunotherapies. Immunotherapy 2013; 5:1147-50. [DOI: 10.2217/imt.13.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Denis Migliorini
- Centre of Oncology, Geneva University Hospitals & University of Geneva, Geneva, Switzerland
| | - Pierre-Yves Dietrich
- Centre of Oncology, Geneva University Hospitals & University of Geneva, Geneva, Switzerland
| | - Paul R Walker
- Centre of Oncology, Geneva University Hospitals & University of Geneva, Geneva, Switzerland
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35
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Pollack IF, Jakacki RI, Butterfield LH, Okada H. Peptide Vaccine Therapy for Childhood Gliomas. Neurosurgery 2013; 60 Suppl 1:113-9. [DOI: 10.1227/01.neu.0000430769.33467.68] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Extranodal induction of therapeutic immunity in the tumor microenvironment after intratumoral delivery of Tbet gene-modified dendritic cells. Cancer Gene Ther 2013; 20:469-77. [PMID: 23846252 PMCID: PMC3775601 DOI: 10.1038/cgt.2013.42] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 06/15/2013] [Indexed: 12/20/2022]
Abstract
Murine dendritic cells (DC) transduced to express the Type-1 transactivator T-bet (i.e. mDC.Tbet) and delivered intratumorally as a therapy are superior to control wild-type DC in slowing the growth of established subcutaneous MCA205 sarcomas in vivo. Optimal antitumor efficacy of mDC.Tbet-based gene therapy was dependent on host natural killer (NK) cells and CD8(+) T cells, and required mDC.Tbet expression of major histocompatibility complex class I molecules, but was independent of the capacity of the injected mDC.Tbet to produce proinflammatory cytokines (interleukin-12 family members or interferon-γ) or to migrate to tumor-draining lymph nodes based on CCR7 ligand chemokine recruitment. Conditional (CD11c-DTR) or genetic (BATF3(-/-)) deficiency in host antigen-crosspresenting DC did not diminish the therapeutic action of intratumorally delivered wild-type mDC.Tbet. Interestingly, we observed that intratumoral delivery of mDC.Tbet (versus control mDC.Null) promoted the acute infiltration of NK cells and naive CD45RB(+) T cells into the tumor microenvironment (TME) in association with elevated expression of NK- and T-cell-recruiting chemokines by mDC.Tbet. When taken together, our data support a paradigm for extranodal (cross)priming of therapeutic Type-1 immunity in the TME after intratumoral delivery of mDC.Tbet-based gene therapy.
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37
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Hoepner S, Loh JMS, Riccadonna C, Derouazi M, Maroun CY, Dietrich PY, Walker PR. Synergy between CD8 T cells and Th1 or Th2 polarised CD4 T cells for adoptive immunotherapy of brain tumours. PLoS One 2013; 8:e63933. [PMID: 23717511 PMCID: PMC3662716 DOI: 10.1371/journal.pone.0063933] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 04/10/2013] [Indexed: 01/05/2023] Open
Abstract
The feasibility of cancer immunotherapy mediated by T lymphocytes is now a clinical reality. Indeed, many tumour associated antigens have been identified for cytotoxic CD8 T cells, which are believed to be key mediators of tumour rejection. However, for aggressive malignancies in specialised anatomic sites such as the brain, a limiting factor is suboptimal tumour infiltration by CD8 T cells. Here we take advantage of recent advances in T cell biology to differentially polarise CD4 T cells in order to explore their capacity to enhance immunotherapy. We used an adoptive cell therapy approach to work with clonal T cell populations of defined specificity. Th1 CD4 T cells preferentially homed to and accumulated within intracranial tumours compared with Th2 CD4 T cells. Moreover, tumour-antigen specific Th1 CD4 T cells enhanced CD8 T cell recruitment and function within the brain tumour bed. Survival of mice bearing intracranial tumours was significantly prolonged when CD4 and CD8 T cells were co-transferred. These results should encourage further definition of tumour antigens recognised by CD4 T cells, and exploitation of both CD4 and CD8 T cell subsets to optimise T cell therapy of cancer.
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Affiliation(s)
- Sabine Hoepner
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Jacelyn M. S. Loh
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Cristina Riccadonna
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Madiha Derouazi
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Céline Yacoub Maroun
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Pierre-Yves Dietrich
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Paul R. Walker
- Centre of Oncology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
- * E-mail:
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38
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Zhong J, Sakaki M, Okada H, Ahrens ET. In vivo intracellular oxygen dynamics in murine brain glioma and immunotherapeutic response of cytotoxic T cells observed by fluorine-19 magnetic resonance imaging. PLoS One 2013; 8:e59479. [PMID: 23667419 PMCID: PMC3648573 DOI: 10.1371/journal.pone.0059479] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 02/14/2013] [Indexed: 12/31/2022] Open
Abstract
Noninvasive biomarkers of anti-tumoral efficacy are of great importance to the development of therapeutic agents. Tumor oxygenation has been shown to be an important indicator of therapeutic response. We report the use of intracellular labeling of tumor cells with perfluorocarbon (PFC) molecules, combined with quantitative ¹⁹F spin-lattice relaxation rate (R₁) measurements, to assay tumor cell oxygen dynamics in situ. In a murine central nervous system (CNS) GL261 glioma model, we visualized the impact of Pmel-1 cytotoxic T cell immunotherapy, delivered intravenously, on intracellular tumor oxygen levels. GL261 glioma cells were labeled ex vivo with PFC and inoculated into the mouse striatum. The R₁ of ¹⁹F labeled cells was measured using localized single-voxel magnetic resonance spectroscopy, and the absolute intracellular partial pressure of oxygen (pO₂) was ascertained. Three days after tumor implantation, mice were treated with 2×10⁷ cytotoxic T cells intravenously. At day five, a transient spike in pO₂ was observed indicating an influx of T cells into the CNS and putative tumor cell apoptosis. Immunohistochemistry and quantitative flow cytometry analysis confirmed that the pO₂ was causally related to the T cells infiltration. Surprisingly, the pO₂ spike was detected even though few (∼4×10⁴) T cells actually ingress into the CNS and with minimal tumor shrinkage. These results indicate the high sensitivity of this approach and its utility as a non-invasive surrogate biomarker of anti-cancer immunotherapeutic response in preclinical models.
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Affiliation(s)
- Jia Zhong
- Department of Biological Sciences and Pittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
| | - Masashi Sakaki
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, United States of America
| | - Hideho Okada
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, United States of America
| | - Eric T. Ahrens
- Department of Biological Sciences and Pittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America
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Okada H, Scheurer ME, Sarkar SN, Bondy ML. Integration of epidemiology, immunobiology, and translational research for brain tumors. Ann N Y Acad Sci 2013; 1284:17-23. [PMID: 23651189 PMCID: PMC3648859 DOI: 10.1111/nyas.12115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We recently identified a pivotal role for the host type I interferon (IFN) pathway in immunosurveillance against de novo mouse glioma development, especially through the regulation of immature myeloid cells (IMCs) in the glioma microenvironment. The present paper summarizes our published work in a number of areas. We have identified single-nucleotide polymorphisms (SNPs) in human IFN genes that dictate altered prognosis of patients with glioma. One of these SNPs (rs12553612) is located in the promoter of IFNA8 and influences its activity. Conversely, recent epidemiologic data show that chronic use of nonsteroidal anti-inflammatory drugs lowers the risk of glioma. We translated these findings back to our de novo glioma model and found that cyclooxygenase-2 inhibition enhances antiglioma immunosurveillance by reducing glioma-associated IMCs. Taken together, these findings suggest that alterations in myeloid cell function condition the brain for glioma development. Finally, in preliminary work, we have begun applying novel immunotherapeutic approaches to patients with low-grade glioma with the aim of preventing malignant transformation. Future research will hopefully better integrate epidemiological, immunobiological, and translational techniques to develop novel, preventive approaches for malignant gliomas.
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Affiliation(s)
- Hideho Okada
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA.
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40
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Mallick A, Barik S, Goswami KK, Banerjee S, Ghosh S, Sarkar K, Bose A, Baral R. Neem leaf glycoprotein activates CD8(+) T cells to promote therapeutic anti-tumor immunity inhibiting the growth of mouse sarcoma. PLoS One 2013; 8:e47434. [PMID: 23326300 PMCID: PMC3543399 DOI: 10.1371/journal.pone.0047434] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 09/17/2012] [Indexed: 11/18/2022] Open
Abstract
In spite of sufficient data on Neem Leaf Glycoprotein (NLGP) as a prophylactic vaccine, little knowledge currently exists to support the use of NLGP as a therapeutic vaccine. Treatment of mice bearing established sarcomas with NLGP (25 µg/mice/week subcutaneously for 4 weeks) resulted in tumor regression or dormancy (Tumor free/Regressor, 13/24 (NLGP), 4/24 (PBS)). Evaluation of CD8+ T cell status in blood, spleen, TDLN, VDLN and tumor revealed increase in cellular number. Elevated expression of CD69, CD44 and Ki67 on CD8+ T cells revealed their state of activation and proliferation by NLGP. Depletion of CD8+ T cells in mice at the time of NLGP treatment resulted in partial termination of tumor regression. An expansion of CXCR3+ and CCR5+ T cells was observed in the TDLN and tumor, along with their corresponding ligands. NLGP treatment enhances type 1 polarized T-bet expressing T cells with downregulation of GATA3. Treg cell population was almost unchanged. However, T∶Treg ratios significantly increased with NLGP. Enhanced secretion/expression of IFNγ was noted after NLGP therapy. In vitro culture of T cells with IL-2 and sarcoma antigen resulted in significant enhancement in cytotoxic efficacy. Consistently higher expression of CD107a was also observed in CD8+ T cells from tumors. Reinoculation of sarcoma cells in tumor regressed NLGP-treated mice maintained tumor free status in majority. This is correlated with the increment of CD44hiCD62Lhi central memory T cells. Collectively, these findings support a paradigm in which NLGP dynamically orchestrates the activation, expansion, and recruitment of CD8+ T cells into established tumors to operate significant tumor cell lysis.
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MESH Headings
- Animals
- Antineoplastic Agents/immunology
- Antineoplastic Agents/pharmacology
- Azadirachta/chemistry
- Azadirachta/immunology
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cytotoxicity, Immunologic/drug effects
- Cytotoxicity, Immunologic/immunology
- Female
- Glycoproteins/immunology
- Glycoproteins/pharmacology
- Immunohistochemistry
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/immunology
- Mice
- Plant Leaves/chemistry
- Plant Leaves/immunology
- Plant Proteins/immunology
- Plant Proteins/pharmacology
- Receptors, CCR5/genetics
- Receptors, CCR5/immunology
- Receptors, CCR5/metabolism
- Receptors, CXCR3/genetics
- Receptors, CXCR3/immunology
- Receptors, CXCR3/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Sarcoma, Experimental/drug therapy
- Sarcoma, Experimental/immunology
- Sarcoma, Experimental/pathology
- Spleen/drug effects
- Spleen/immunology
- Spleen/pathology
- Survival Analysis
- Time Factors
- Tumor Burden/drug effects
- Tumor Burden/immunology
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Affiliation(s)
- Atanu Mallick
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Subhasis Barik
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Kuntal Kanti Goswami
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Saptak Banerjee
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Sarbari Ghosh
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Koustav Sarkar
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Anamika Bose
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
| | - Rathindranath Baral
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), Kolkata, India
- * E-mail:
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Yu Y, Cho HI, Wang D, Kaosaard K, Anasetti C, Celis E, Yu XZ. Adoptive transfer of Tc1 or Tc17 cells elicits antitumor immunity against established melanoma through distinct mechanisms. THE JOURNAL OF IMMUNOLOGY 2013; 190:1873-81. [PMID: 23315072 DOI: 10.4049/jimmunol.1201989] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Adoptive cell transfer (ACT) of ex vivo-activated autologous tumor-reactive T cells is currently one of the most promising approaches for cancer immunotherapy. Recent studies provided some evidence that IL-17-producing CD8(+) (Tc17) cells may exhibit potent antitumor activity, but the specific mechanisms have not been completely defined. In this study, we used a murine melanoma lung-metastasis model and tested the therapeutic effects of gp100-specific polarized type I CD8(+) cytotoxic T (Tc1) or Tc17 cells combined with autologous bone marrow transplantation after total body irradiation. Bone marrow transplantation combined with ACT of antitumor (gp100-specific) Tc17 cells significantly suppressed the growth of established melanoma, whereas Tc1 cells induced long-term tumor regression. After ACT, Tc1 cells maintained their phenotype to produce IFN-γ, but not IL-17. However, although Tc17 cells largely preserved their ability to produce IL-17, a subset secreted IFN-γ or both IFN-γ and IL-17, indicating the plasticity of Tc17 cells in vivo. Furthermore, after ACT, the Tc17 cells had a long-lived effector T cell phenotype (CD127(hi)/KLRG-1(low)) as compared with Tc1 cells. Mechanistically, Tc1 cells mediated antitumor immunity primarily through the direct effect of IFN-γ on tumor cells. In contrast, despite the fact that some Tc17 cells also secreted IFN-γ, Tc17-mediated antitumor immunity was independent of the direct effects of IFN-γ on the tumor. Nevertheless, IFN-γ played a critical role by creating a microenvironment that promoted Tc17-mediated antitumor activity. Taken together, these studies demonstrate that both Tc1 and Tc17 cells can mediate effective antitumor immunity through distinct effector mechanisms, but Tc1 cells are superior to Tc17 cells in mediating tumor regression.
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Affiliation(s)
- Yu Yu
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
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42
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Zou Z, Denny E, Brown CE, Jensen MC, Li G, Fujii T, Neman J, Jandial R, Chen M. Cytotoxic T lymphocyte trafficking and survival in an augmented fibrin matrix carrier. PLoS One 2012; 7:e34652. [PMID: 22496835 PMCID: PMC3319597 DOI: 10.1371/journal.pone.0034652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 03/08/2012] [Indexed: 12/02/2022] Open
Abstract
Cell-based therapies have intriguing potential for the treatment of a variety of neurological disorders. One such example is genetically engineered cytotoxic T lymphocytes (CTLs) that are being investigated in brain tumor clinical trials. The development of methods for CTL delivery is critical to their use in the laboratory and clinical setting. In our study, we determined whether CTLs can migrate through fibrin matrices and if their migration, survival, and function could be modulated by adding chemokines to the matrix. Our results indicated that CTLs can freely migrate through fibrin matrices. As expected, the addition of the monocyte chemotactic protein-1 (MCP-1), also known as chemokine C-C motif ligand 2 (CCL2), to the surrounding media increased egress of the CTLs out of the fibrin clot. Interleukin (IL) -2 and/or IL-15 embedded in the matrix enhanced T cell survival and further promoted T cell migration. The interleukin-13 receptor alpha 2 specific (IL-13R alpha2) T cells that traveled out of the fibrin clot retained the capacity to kill U251 glioma cells. In summary, CTLs can survive and migrate robustly in fibrin matrices. These processes can be influenced by modification of matrix constituents. We conclude that fibrin matrices may be suitable T cell carriers and can be used to facilitate understanding of T cell interaction with the surrounding microenvironment.
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Affiliation(s)
- Zhaoxia Zou
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Erin Denny
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Christine E. Brown
- Department of Cancer Immunotherapeutics & Tumor Immunology, City of Hope National Medical Center, Duarte, California, United States of America
| | - Michael C. Jensen
- Department of Cancer Immunotherapeutics & Tumor Immunology, City of Hope National Medical Center, Duarte, California, United States of America
| | - Gang Li
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Tatsuhiro Fujii
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Josh Neman
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Rahul Jandial
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
| | - Mike Chen
- Division of Neurosurgery, City of Hope National Medical Center, Duarte, California, United States of America
- * E-mail:
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Tumor Cell Repopulation between Cycles of Chemotherapy is Inhibited by Regulatory T-Cell Depletion in a Murine Mesothelioma Model. J Thorac Oncol 2011; 6:1578-86. [DOI: 10.1097/jto.0b013e3182208ee0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bose A, Taylor JL, Alber S, Watkins SC, Garcia JA, Rini BI, Ko JS, Cohen PA, Finke JH, Storkus WJ. Sunitinib facilitates the activation and recruitment of therapeutic anti-tumor immunity in concert with specific vaccination. Int J Cancer 2011; 129:2158-70. [PMID: 21170961 DOI: 10.1002/ijc.25863] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 12/06/2010] [Indexed: 12/21/2022]
Abstract
The multikinase inhibitor sunitinib malate (SUT) has been reported to reduce levels of myeloid suppressor cells and Treg cells in cancer patients, hypothetically diminishing intrinsic impediments for active immunization against tumor-associated antigens in such individuals. The goal of this study was to identify longitudinal immune molecular and cellular changes associated with tumor regression and disease-free status after the treatment of established day 7 s.c. MO5 (B16.OVA) melanomas with SUT alone (1 mg/day via oral gavage for 7 days), vaccination using ovalbumin (OVA) peptide-pulsed dendritic cell [vaccine (VAC)] alone, or the combination of SUT and VAC (SUT/VAC). We observed superior anti-tumor efficacy for SUT/VAC combination approaches, particularly when SUT was applied at the time of the initial vaccination or the VAC boost. Treatment effectiveness was associated with the acute loss of (and/or failure to recruit) cells bearing myeloid-derived suppressor cells or Treg phenotypes within the tumor microenvironment (TME) and the corollary, prolonged enhancement of Type-1 anti-OVA CD8(+) T cell responses in the tumor-draining lymph node and the TME. Enhanced Type-1 T cell infiltration of tumors was associated with treatment-induced expression of vascular cell adhesion molecule-1 (VCAM-1) and CXCR3 ligand chemokines in vascular/peri-vascular cells within the TME, with SUT/VAC therapy benefits conditionally negated upon adminsitration of CXCR3 or VCAM-1 blocking antibodies. These data support the ability of a short 7 day course of SUT to (re)condition the TME to become more receptive to the recruitment and prolonged therapeutic action of (VAC-induced) anti-tumor Tc1 cells.
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Affiliation(s)
- Anamika Bose
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Okada H, Kalinski P, Ueda R, Hoji A, Kohanbash G, Donegan TE, Mintz AH, Engh JA, Bartlett DL, Brown CK, Zeh H, Holtzman MP, Reinhart TA, Whiteside TL, Butterfield LH, Hamilton RL, Potter DM, Pollack IF, Salazar AM, Lieberman FS. Induction of CD8+ T-cell responses against novel glioma-associated antigen peptides and clinical activity by vaccinations with {alpha}-type 1 polarized dendritic cells and polyinosinic-polycytidylic acid stabilized by lysine and carboxymethylcellulose in patients with recurrent malignant glioma. J Clin Oncol 2010; 29:330-6. [PMID: 21149657 DOI: 10.1200/jco.2010.30.7744] [Citation(s) in RCA: 442] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
PURPOSE A phase I/II trial was performed to evaluate the safety and immunogenicity of a novel vaccination with α-type 1 polarized dendritic cells (αDC1) loaded with synthetic peptides for glioma-associated antigen (GAA) epitopes and administration of polyinosinic-polycytidylic acid [poly(I:C)] stabilized by lysine and carboxymethylcellulose (poly-ICLC) in HLA-A2(+) patients with recurrent malignant gliomas. GAAs for these peptides are EphA2, interleukin (IL)-13 receptor-α2, YKL-40, and gp100. PATIENTS AND METHODS Twenty-two patients (13 with glioblastoma multiforme [GBM], five with anaplastic astrocytoma [AA], three with anaplastic oligodendroglioma [AO], and one with anaplastic oligoastrocytoma [AOA]) received at least one vaccination, and 19 patients received at least four vaccinations at two αDC1 dose levels (1 × or 3 × 10(7)/dose) at 2-week intervals intranodally. Patients also received twice weekly intramuscular injections of 20 μg/kg poly-ICLC. Patients who demonstrated positive radiologic response or stable disease without major adverse events were allowed to receive booster vaccines. T-lymphocyte responses against GAA epitopes were assessed by enzyme-linked immunosorbent spot and HLA-tetramer assays. RESULTS The regimen was well-tolerated. The first four vaccines induced positive immune responses against at least one of the vaccination-targeted GAAs in peripheral blood mononuclear cells in 58% of patients. Peripheral blood samples demonstrated significant upregulation of type 1 cytokines and chemokines, including interferon-α and CXCL10. Nine (four GBM, two AA, two AO, and one AOA) achieved progression-free status lasting at least 12 months. One patient with recurrent GBM demonstrated sustained complete response. IL-12 production levels by αDC1 positively correlated with time to progression. CONCLUSION These data support safety, immunogenicity, and preliminary clinical activity of poly-ICLC-boosted αDC1-based vaccines.
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Affiliation(s)
- Hideho Okada
- G12.a Research Pavilion at the Hillman Cancer Center, 5117 Centre Ave, Pittsburgh, PA 15213-1863, USA.
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Zhu X, Fujita M, Snyder LA, Okada H. Systemic delivery of neutralizing antibody targeting CCL2 for glioma therapy. J Neurooncol 2010; 104:83-92. [PMID: 21116835 DOI: 10.1007/s11060-010-0473-5] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 11/12/2010] [Indexed: 01/04/2023]
Abstract
Tumor-associated macrophages (TAMs) and myeloid-derived suppressor cells (MDSCs) inhibit anti-tumor immune responses and facilitate tumor growth. Precursors for these immune cell populations migrate to the tumor site in response to tumor secretion of chemokines, such as monocyte chemoattractant protein-1 (MCP-1/CCL2), which was originally purified and identified from human gliomas. In syngeneic mouse GL261 glioma and human U87 glioma xenograft models, we evaluated the efficacy of systemic CCL2 blockade by monoclonal antibodies (mAb) targeting mouse and/or human CCL2. Intraperitoneal (i.p.) administration of anti-mouse CCL2 mAb as monotherapy (2 mg/kg/dose, twice a week) significantly, albeit modestly, prolonged the survival of C57BL/6 mice bearing intracranial GL261 glioma (P = 0.0033), which was concomitant with a decrease in TAMs and MDSCs in the tumor microenvironment. Similarly, survival was modestly prolonged in severe combined immunodeficiency mice bearing intracranial human U87 glioma xenografts treated with both anti-human CCL2 mAb and anti-mouse CCL2 antibodies (2 mg/kg/dose for each, twice a week) compared to mice treated with control IgG (P = 0.0159). Furthermore, i.p. administration of anti-mouse CCL2 antibody in combination with temozolomide (TMZ) significantly prolonged the survival of C57BL/6 mice bearing GL261 glioma with 8 of 10 treated mice surviving longer than 70 days, while only 3 of 10 mice treated with TMZ and isotype IgG survived longer than 70 days (P = 0.0359). These observations provide support for development of mAb-based CCL2 blockade strategies in combination with the current standard TMZ-based chemotherapy for treatment of malignant gliomas.
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Affiliation(s)
- Xinmei Zhu
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Pardee AD, McCurry D, Alber S, Hu P, Epstein AL, Storkus WJ. A therapeutic OX40 agonist dynamically alters dendritic, endothelial, and T cell subsets within the established tumor microenvironment. Cancer Res 2010; 70:9041-52. [PMID: 21045144 DOI: 10.1158/0008-5472.can-10-1369] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Little preclinical modeling currently exists to support the use of OX40 agonists as therapeutic agents in the setting of advanced cancers, as well as the mechanisms through which therapeutic efficacy is achieved. We show that treatment of mice bearing well-established day 17 sarcomas with a novel OX40 ligand-Fc fusion protein (OX40L-Fc) resulted in tumor regression or dormancy in the majority of treated animals. Unexpectedly, dendritic cells (DC) in the progressive tumor microenvironment (TME) acquire OX40 expression and bind fluorescently labeled OX40L-Fc. Furthermore, longitudinal analyses revealed that DCs become enriched in the tumor-draining lymph node (TDLN) of both wild-type and Rag-/- mice within 3 days after OX40L-Fc treatment. By day 7 after treatment, a significant expansion of CXCR3+ T effector cells was noted in the TDLN, and by day 10 after treatment, type 1 polarized T cells exhibiting a reactivated memory phenotype had accumulated in the tumors. High levels of CXCL9 (a CXCR3 ligand) and enhanced expression of VCAM-1 by vascular endothelial cells (VEC) were observed in the TME early after treatment with OX40L-Fc. Notably, these vascular alterations were maintained in Rag-/- mice, indicating that the OX40L-Fc-mediated activation of both DC and VEC occurs in a T-cell-independent manner. Collectively, these findings support a paradigm in which the stimulation of DC, T cells, and the tumor vasculature by an OX40 agonist dynamically orchestrates the activation, expansion, and recruitment of therapeutic T cells into established tumors.
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Affiliation(s)
- Angela D Pardee
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
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48
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Qu Y, Chen L, Pardee AD, Taylor JL, Wesa AK, Storkus WJ. Intralesional delivery of dendritic cells engineered to express T-bet promotes protective type 1 immunity and the normalization of the tumor microenvironment. THE JOURNAL OF IMMUNOLOGY 2010; 185:2895-902. [PMID: 20675595 DOI: 10.4049/jimmunol.1001294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
T-bet (Tbx21), a T-box transcription factor, has been previously identified as a master regulator of type 1 T cell polarization. We have also recently shown that the genetic engineering of human dendritic cells (DCs) to express human T-bet cDNA yields type 1-polarizing APCs in vitro (1). In the present study, murine CD11c(+) DCs were transduced with a recombinant adenovirus encoding full-length murine T-bets (DC.mTbets) and analyzed for their immunomodulatory functions in vitro and in vivo. Within the range of markers analyzed, DC.mTbets exhibited a control DC phenotype and were indistinguishable from control DCs in their ability to promote allogenic T cell proliferation in MLR in vitro. However, DC.mTbets were superior to control DCs in promoting Th1 and Tc1 responses in vitro via a mechanism requiring DC-T cell interaction or the close proximity of these two cell types and that can only partially be explained by the action of DC-elaborated IL-12p70. When injected into day 7 s.c. CMS4 sarcoma lesions growing in syngenic BALB/c mice, DC.mTbets dramatically slowed tumor progression (versus control DCs) and extended overall survival via a mechanism dependent on both CD4(+) and CD8(+) T cells and, to a lesser extent, asialoGM1(+) NK cells. DC.mTbet-based therapy also promoted superior tumor-specific Tc1 responses in the spleens and tumor-draining lymph nodes of treated animals, and within the tumor microenvironment it inhibited the accumulation of CD11b(+)Gr1(+) myeloid-derived suppressor cells and normalized CD31(+) vascular structures. These findings support the potential translational utility of DC.Tbets as a therapeutic modality in the cancer setting.
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Affiliation(s)
- Yanyan Qu
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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Sciumè G, Santoni A, Bernardini G. Chemokines and glioma: Invasion and more. J Neuroimmunol 2010; 224:8-12. [DOI: 10.1016/j.jneuroim.2010.05.019] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Accepted: 05/05/2010] [Indexed: 12/13/2022]
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Fujita M, Scheurer ME, Decker SA, McDonald HA, Kohanbash G, Kastenhuber ER, Kato H, Bondy ML, Ohlfest JR, Okada H. Role of type 1 IFNs in antiglioma immunosurveillance--using mouse studies to guide examination of novel prognostic markers in humans. Clin Cancer Res 2010; 16:3409-19. [PMID: 20472682 PMCID: PMC2896455 DOI: 10.1158/1078-0432.ccr-10-0644] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We hypothesized that the type 1 IFNs would play a pivotal role in antiglioma immunosurveillance through promotion of type 1 adaptive immunity and suppression of immunoregulatory cells. EXPERIMENTAL DESIGN We induced de novo gliomas in Ifnar1(-/-) (deficient for type 1 IFN receptors) or wild-type mice by intracerebroventricuar transfection of NRas and a short hairpin RNA against P53 using the Sleeping Beauty transposon system. We analyzed the survival of 587 glioma patients for single nucleotide polymorphisms (SNP) in type 1 IFN-related genes. RESULTS Ifnar1(-/-) mice exhibited accelerated tumor growth and death. Analyses of brain tumor-infiltrating lymphocytes in Ifnar1(-/-) mice revealed an increase of cells positive for CD11b(+)Ly6G(+) and CD4(+)FoxP3(+), which represent myeloid-derived suppressor cells and regulatory T cells, respectively, but a decrease of CD8(+) cytotoxic T lymphocytes (CTLs) compared with wild-type mice. Ifnar1(-/-) mouse-derived glioma tissues exhibited a decrease in mRNA for the CTL-attracting chemokine Cxcl10, but an increase of Ccl2 and Ccl22, both of which are known to attract immunoregulatory cell populations. Dendritic cells generated from the bone marrow of Ifnar1(-/-) mice failed to function as effective antigen-presenting cells. Moreover, depletion of Ly6G(+) cells prolonged the survival of mice with developing gliomas. Human epidemiologic studies revealed that SNPs in IFNAR1 and IFNA8 are associated with significantly altered overall survival of patients with WHO grade 2 to 3 gliomas. CONCLUSIONS The novel Sleeping Beauty-induced murine glioma model led us to discover a pivotal role for the type 1 IFN pathway in antiglioma immunosurveillance and relevant human SNPs that may represent novel prognostic markers.
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Affiliation(s)
- Mitsugu Fujita
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
| | - Michael E. Scheurer
- Department of Pediatrics and Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030
| | - Stacy A. Decker
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455
| | - Heather A. McDonald
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
| | - Gary Kohanbash
- Infectious Diseases and Microbiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15213
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
| | - Edward R. Kastenhuber
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
| | - Hisashi Kato
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
| | - Melissa L. Bondy
- Department of Epidemiology, University of Texas M. D. Anderson Cancer Center, Houston, TX 77030
| | - John R. Ohlfest
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455
| | - Hideho Okada
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
- Brain Tumor Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213
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