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Xu W, Liu K, Chen M, Sun JY, McCaughan GW, Lu XJ, Ji J. Immunotherapy for hepatocellular carcinoma: recent advances and future perspectives. Ther Adv Med Oncol 2019; 11:1758835919862692. [PMID: 31384311 PMCID: PMC6651675 DOI: 10.1177/1758835919862692] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
The introduction of immunotherapies has been a major development in the treatment of many advanced cancers, including hepatocellular carcinoma (HCC). We are entering a new era of systemic therapy for advanced HCC associated with an explosion of clinical trial activity. Data from phase I/II studies of checkpoint inhibitors in advanced HCC have been promising, with durable objective response rates of approximately 20% seen (in both first- and second-line settings) and acceptable safety profiles (including immune-mediated hepatitis). Phase III studies evaluating anti-programmed cell death protein 1 (anti-PD-1) and anti-programmed cell death ligand 1 (anti-PD-L1) antibodies compared with sorafenib are already underway. The potential synergistic effects of anti-PD-1/anti-PD-L1 when used in combination with agents against other checkpoint molecules, systemic therapies, as well as conventional surgical and locoregional therapies are also being explored in upcoming clinical trials. Aside from this, other strategies to harness the immune system, including chimeric antigen receptor-engineered T cells, natural killer cell therapies, and peptide vaccines directed against HCC antigens have entered phase I/II studies. Current limitations of immunotherapies and areas of future research include the accurate assessment and prediction of tumor response, overcoming the immunosuppressive effects of a hypoxic microenvironment, and the management of immune-related hepatitis in patients who already have limited liver reserve.
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Affiliation(s)
- Weiqi Xu
- Department of Hepatic Surgery and Department of Oncology, Fudan University Shanghai Cancer Center, Shanghai Medical College, China
| | - Ken Liu
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, NSW, Australia, Sydney Medical School, The University of Sydney, Australia; and Liver Injury and Cancer Program, The Centenary Institute, Sydney, Australia
| | - Minjiang Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research and Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University; Affiliated Lishui Hospital of Zhejiang University; and The Central Hospital of Zhejiang Lishui, China
| | - Jin-Yu Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, China, and Sparkfire Scientific Research Group, Nanjing Medical University, China
| | - Geoffrey W McCaughan
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, NSW, Australia, Sydney Medical School, The University of Sydney, Australia; and Liver Injury and Cancer Program, The Centenary Institute, Sydney, Australia
| | - Xiao-Jie Lu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, 210029 China
| | - Jiansong Ji
- Department of Radiology and Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University; Affiliated Lishui Hospital of Zhejiang University; and The Central Hospital of Zhejiang Lishui, China
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Xu J, Zhang Q, Tian K, Wang H, Yin H, Zheng J. Current status and future prospects of the strategy of combining CAR‑T with PD‑1 blockade for antitumor therapy (Review). Mol Med Rep 2017; 17:2083-2088. [PMID: 29207115 DOI: 10.3892/mmr.2017.8129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/04/2017] [Indexed: 11/06/2022] Open
Abstract
The immune system serves an important role in controlling and eradicating malignant cells. Immunotherapy for treating tumors has received much attention in recent years due to its marked effect. There are two approaches which currently lead this field: Chimeric antigen receptor‑modified T‑cell immunotherapy (CAR‑T) and programmed cell death protein-1 blockade (PD‑1 blockade). CAR‑T has emerged as a promising regimen for the treatment of a range of types of cancer, including chronic lymphoid leukemia and neuroblastoma, with studies of long term remission in certain patients. PD‑1 blockade has been reported to exert marked clinical responses in patients against a range of types of solid cancer, including advanced melanoma, non‑small‑cell lung cancer and renal cell carcinoma, in addition to hematological malignancies. While increasing the power of the immune system to fight cancer has been a long‑standing goal in oncology, a number of studies have demonstrated the synergistic antitumor effects of combination therapies under the umbrella of immunotherapy. The present review focused on a novel combination approach involving CAR‑T and PD‑1 blockade. The present reviews aimed to discuss the following four aspects of such an approach: i) Current monotherapy status; ii) rationale for the combination of CAR‑T and PD‑1 blockade; iii) current status of the combination of CAR‑T and PD‑1 blockade; and iv) conclusions and future perspectives.
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Affiliation(s)
- Jinjing Xu
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Qing Zhang
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Kang Tian
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Haiyu Wang
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Hong Yin
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
| | - Junnian Zheng
- Cancer Institute of Xuzhou Medical University, Xuzhou, Jiangsu 221002, P.R. China
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Iñarrairaegui M, Melero I, Sangro B. Immunotherapy of Hepatocellular Carcinoma: Facts and Hopes. Clin Cancer Res 2017; 24:1518-1524. [PMID: 29138342 DOI: 10.1158/1078-0432.ccr-17-0289] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/09/2017] [Accepted: 11/09/2017] [Indexed: 12/15/2022]
Abstract
Treatment of patients with hepatocellular carcinoma (HCC) in the advanced stage remains a great challenge, with very few drugs approved. After decades of failure of immune therapies, immune checkpoint inhibitors have emerged as potentially effective treatments for patients with HCC in the advanced stage. Immune checkpoints, including human cancer, cytotoxic T-lymphocyte protein 4 (CTLA-4), and programmed cell death protein 1 (PD-1), are surface proteins expressed in a variety of immune cells and mostly provide immunosuppressive signals. Monoclonal antibodies able to block these molecules have shown antitumor activity against a wide spectrum of human cancers. Clinical experience with checkpoint inhibitors in HCC includes early trials with the anti-CTLA-4 agent tremelimumab and a large phase II trial with the anti-PD-1 agent nivolumab. The latter has shown strong activity particularly as second-line therapy, both in terms of tumor response and patient survival. At least three topics should be the focus of future research: (i) the search for activity in patients at less-advanced stages, including the adjuvant treatment of patients with resectable or ablatable tumors; (ii) the enhanced efficacy of combination therapies, including particularly the combination with those targeted and locoregional therapies that may have a synergistic effect or act upon mechanisms of primary or acquired resistance to checkpoint inhibitors; and (iii) the identification of clinical features and serum or tissue biomarkers that would allow a better patient selection for individual treatments. Hopefully, ongoing trials will help to design better treatments in the future. Clin Cancer Res; 24(7); 1518-24. ©2017 AACR.
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Affiliation(s)
| | - Ignacio Melero
- Dept of Immunology and Immunotherapy, Clínica Universidad de Navarra-IDISNA and CIBERONC, Pamplona, Spain
| | - Bruno Sangro
- Liver Unit, Clínica Universidad de Navarra-IDISNA and CIBEREHD, Pamplona, Spain.
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Lynch A, Hawk W, Nylen E, Ober S, Autin P, Barber A. Adoptive transfer of murine T cells expressing a chimeric-PD1-Dap10 receptor as an immunotherapy for lymphoma. Immunology 2017; 152:472-483. [PMID: 28670716 DOI: 10.1111/imm.12784] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 06/07/2017] [Accepted: 06/21/2017] [Indexed: 12/15/2022] Open
Abstract
Adoptive transfer of T cells is a promising cancer therapy and expression of chimeric antigen receptors can enhance tumour recognition and T-cell effector functions. The programmed death protein 1 (PD1) receptor is a prospective target for a chimeric antigen receptor because PD1 ligands are expressed on many cancer types, including lymphoma. Therefore, we developed a murine chimeric PD1 receptor (chPD1) consisting of the PD1 extracellular domain fused to the cytoplasmic domain of CD3ζ. Additionally, chimeric antigen receptor therapies use various co-stimulatory domains to enhance efficacy. Hence, the inclusion of a Dap10 or CD28 co-stimulatory domain in the chPD1 receptor was compared to determine which domain induced optimal anti-tumour immunity in a mouse model of lymphoma. The chPD1 T cells secreted pro-inflammatory cytokines and lysed RMA lymphoma cells. Adoptive transfer of chPD1 T cells significantly reduced established tumours and led to tumour-free survival in lymphoma-bearing mice. When comparing chPD1 receptors containing a Dap10 or CD28 domain, both receptors induced secretion of pro-inflammatory cytokines; however, chPD1-CD28 T cells also secreted anti-inflammatory cytokines whereas chPD1-Dap10 T cells did not. Additionally, chPD1-Dap10 induced a central memory T-cell phenotype compared with chPD1-CD28, which induced an effector memory phenotype. The chPD1-Dap10 T cells also had enhanced in vivo persistence and anti-tumour efficacy compared with chPD1-CD28 T cells. Therefore, adoptive transfer of chPD1 T cells could be a novel therapy for lymphoma and inclusion of the Dap10 co-stimulatory domain in chimeric antigen receptors may induce a preferential cytokine profile and T-cell differentiation phenotype for anti-tumour therapies.
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Affiliation(s)
- Adam Lynch
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
| | - William Hawk
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
| | - Emily Nylen
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
| | - Sean Ober
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
| | - Pierre Autin
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
| | - Amorette Barber
- Department of Biological and Environmental Sciences, Longwood University, Farmville, VA, USA
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Whiteside TL, Demaria S, Rodriguez-Ruiz ME, Zarour HM, Melero I. Emerging Opportunities and Challenges in Cancer Immunotherapy. Clin Cancer Res 2016; 22:1845-55. [PMID: 27084738 DOI: 10.1158/1078-0432.ccr-16-0049] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 02/25/2016] [Indexed: 12/20/2022]
Abstract
Immunotherapy strategies against cancer are emerging as powerful weapons for treatment of this disease. The success of checkpoint inhibitors against metastatic melanoma and adoptive T-cell therapy with chimeric antigen receptor T cells against B-cell-derived leukemias and lymphomas are only two examples of developments that are changing the paradigms of clinical cancer management. These changes are a result of many years of intense research into complex and interrelated cellular and molecular mechanisms controling immune responses. Promising advances come from the discovery of cancer mutation-encoded neoantigens, improvements in vaccine development, progress in delivery of cellular therapies, and impressive achievements in biotechnology. As a result, radical transformation of cancer treatment is taking place in which conventional cancer treatments are being integrated with immunotherapeutic agents. Many clinical trials are in progress testing potential synergistic effects of treatments combining immunotherapy with other therapies. Much remains to be learned about the selection, delivery, and off-target effects of immunotherapy used alone or in combination. The existence of numerous escape mechanisms from the host immune system that human tumors have evolved still is a barrier to success. Efforts to understand the rules of immune cell dysfunction and of cancer-associated local and systemic immune suppression are providing new insights and fuel the enthusiasm for new therapeutic strategies. In the future, it might be possible to tailor immune therapy for each cancer patient. The use of new immune biomarkers and the ability to assess responses to therapy by noninvasive monitoring promise to improve early cancer diagnosis and prognosis. Personalized immunotherapy based on individual genetic, molecular, and immune profiling is a potentially achievable future goal. The current excitement for immunotherapy is justified in view of many existing opportunities for harnessing the immune system to treat cancer.
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Affiliation(s)
- Theresa L Whiteside
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sandra Demaria
- Department of Radiation Oncology, University of Cornell, New York, New York
| | - Maria E Rodriguez-Ruiz
- Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain. Clinica Universidad de Navarra, Pamplona, Spain
| | - Hassane M Zarour
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ignacio Melero
- Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain. Clinica Universidad de Navarra, Pamplona, Spain.
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Melero I, Berman DM, Aznar MA, Korman AJ, Pérez Gracia JL, Haanen J. Evolving synergistic combinations of targeted immunotherapies to combat cancer. Nat Rev Cancer 2015. [PMID: 26205340 DOI: 10.1038/nrc3973] [Citation(s) in RCA: 488] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Immunotherapy has now been clinically validated as an effective treatment for many cancers. There is tremendous potential for synergistic combinations of immunotherapy agents and for combining immunotherapy agents with conventional cancer treatments. Clinical trials combining blockade of cytotoxic T lymphocyte-associated antigen 4 (CTLA4) and programmed cell death protein 1 (PD1) may serve as a paradigm to guide future approaches to immuno-oncology combination therapy. In this Review, we discuss progress in the synergistic design of immune-targeting combination therapies and highlight the challenges involved in tailoring such strategies to provide maximal benefit to patients.
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Affiliation(s)
- Ignacio Melero
- Centro de Investigación Médica Aplicada (CIMA) and Clínica Universitaria, Avenida Pío XII, 55 E-31008, Universidad de Navarra, Pamplona, Spain
| | - David M Berman
- Bristol-Myers Squibb, 3551 Lawrenceville Princeton, New Jersey 08648, USA
| | - M Angela Aznar
- Centro de Investigación Médica Aplicada (CIMA) and Clínica Universitaria, Avenida Pío XII, 55 E-31008, Universidad de Navarra, Pamplona, Spain
| | - Alan J Korman
- Bristol-Myers Squibb Biologics Discovery California, 700 Bay Road, Redwood City, California 94063, USA
| | - José Luis Pérez Gracia
- Centro de Investigación Médica Aplicada (CIMA) and Clínica Universitaria, Avenida Pío XII, 55 E-31008, Universidad de Navarra, Pamplona, Spain
| | - John Haanen
- The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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Kobold S, Grassmann S, Chaloupka M, Lampert C, Wenk S, Kraus F, Rapp M, Düwell P, Zeng Y, Schmollinger JC, Schnurr M, Endres S, Rothenfußer S. Impact of a New Fusion Receptor on PD-1-Mediated Immunosuppression in Adoptive T Cell Therapy. J Natl Cancer Inst 2015; 107:djv146. [PMID: 26105028 DOI: 10.1093/jnci/djv146] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 04/29/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Adoptive T cell transfer (ACT) is currently under investigation for the treatment of metastatic cancer. Recent evidence suggests that the coinhibitory PD-1-PD-L1 axis plays a major role in ACT failure. We hypothesized that a new fusion receptor reverting PD-1-mediated inhibition into CD28 costimulation may break peripheral tolerance. METHODS Different PD-1-CD28 fusion receptor constructs were created and retrovirally transduced into primary T cell receptor transgenic murine CD8(+) T cells specific for ovalbumin (OT-1). Cytokine release, proliferation, cytotoxicity, and tumor recognition were analyzed in vitro. Antitumor efficacy and mode of action were investigated in mice bearing subcutaneous tumors induced with the pancreatic carcinoma cell line Panc02 expressing the model antigen ovalbumin (Panc-OVA). For antitumoral efficacy, six to eight mice per group were used. All statistical tests are two-sided. RESULTS Transduction of the PD-1-CD28 receptor constructs mediated enhanced cytokine release, T cell proliferation, and T cell-induced lysis of target tumor cells. The PD-1-CD28 receptor function was dependent on two of the CD28-signaling motifs and IFN-γ release. Treatment of mice with established Panc-OVA tumors with fusion receptor-transduced OT-1 T cells mediated complete tumor regression. Mice rejecting the tumor were protected upon subsequent rechallenge with either ovalbumin-positive or -negative tumors, indicative of a memory response and epitope spreading in nine of 11 mice vs none of the six naïve mice (P < .001). Treatment efficacy was associated with accumulation of IFN-γ-producing T cells and an increased ratio of CD8(+) T cells to immunosuppressive myeloid-derived suppressor cells in the tumors. CONCLUSIONS Transduction of T cells with this new PD-1-CD28 receptor has the potential of breaking the PD-1-PD-L1-immunosuppressive axis in ACT.
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Affiliation(s)
- Sebastian Kobold
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Simon Grassmann
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Michael Chaloupka
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Christopher Lampert
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Susanne Wenk
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Fabian Kraus
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Moritz Rapp
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Peter Düwell
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Yi Zeng
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Jan C Schmollinger
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Max Schnurr
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Stefan Endres
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
| | - Simon Rothenfußer
- Center of Integrated Protein Science Munich and Division of Clinical Pharmacology, Department of Internal Medicine IV, Ludwig-Maximilians-Universität München, Munich, Germany, Member of the German Center for Lung Research (SK, SG, MC, CL, SW, FK, MR, PD, YZ, JCS, MS, SE SR)
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Chu J, He S, Deng Y, Zhang J, Peng Y, Hughes T, Yi L, Kwon CH, Wang QE, Devine SM, He X, Bai XF, Hofmeister CC, Yu J. Genetic modification of T cells redirected toward CS1 enhances eradication of myeloma cells. Clin Cancer Res 2014; 20:3989-4000. [PMID: 24677374 DOI: 10.1158/1078-0432.ccr-13-2510] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE Our goal is to test whether CS1 could be targeted by chimeric antigen receptor (CAR) T cells to treat multiple myeloma (MM). EXPERIMENTAL DESIGN We generated a retroviral construct of a CS1-specific CAR and engineered primary human T cells expressing the CAR. We then tested the capacity of CS1-CAR T cells to eradicate human MM tumor cells in vitro, ex vivo, and in vivo using orthotopic MM xenograft mouse models. RESULTS In vitro, compared with mock-transduced T cells, upon recognizing CS1-positive MM cells, CS1-CAR-transduced T cells secreted more IFN-γ as well as interleukin (IL)-2, expressed higher levels of the activation marker CD69, showed higher capacity for degranulation, and displayed enhanced cytotoxicity. Ectopically forced expression of CS1 in MM cells with low CS1 expression enhanced recognition and killing by CAR T cells. Ex vivo, CS1-CAR T cells also showed similarly enhanced activities when responding to primary MM cells. More importantly, in orthotopic MM xenograft mouse models, adoptive transfer of human primary T cells expressing CS1-CAR efficiently suppressed the growth of human MM.1S and IM9 myeloma cells and significantly prolonged mouse survival. CONCLUSIONS CS1 is a promising antigen that can be targeted by CAR-expressing T cells for treatment of MM.
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Affiliation(s)
- Jianhong Chu
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.,The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Shun He
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Youcai Deng
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA.,Institute of Materia Medica, College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Jianying Zhang
- Center for Biostatistics, The Ohio State University, Columbus, Ohio 43210, USA
| | - Yong Peng
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Tiffany Hughes
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Ling Yi
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Chang-Hyuk Kwon
- Dardinger Neuro-oncology Center, Department of Neurological Surgery, The Ohio State University, Columbus, OH 43210, USA
| | - Qi-En Wang
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Steven M Devine
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.,The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA.,Blood and Marrow Transplantation Program, The James Cancer Hospital, The Ohio State University, Columbus, Ohio 43210, USA
| | - Xiaoming He
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA.,Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio 43210, USA
| | - Xue-Feng Bai
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA.,Department of Pathology, The Ohio State University, Columbus, Ohio 43210, USA
| | - Craig C Hofmeister
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.,The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Jianhua Yu
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.,The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA.,Blood and Marrow Transplantation Program, The James Cancer Hospital, The Ohio State University, Columbus, Ohio 43210, USA
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Morales-Kastresana A, Labiano S, Quetglas JI, Melero I. Better performance of CARs deprived of the PD-1 brake. Clin Cancer Res 2013; 19:5546-8. [PMID: 24004672 DOI: 10.1158/1078-0432.ccr-13-2157] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Immunotherapies often permit combinations to increase efficacy. Two approaches are currently leading our field: adoptive therapy with T cells transfected with chimeric antigen receptors and monoclonal antibodies blocking the PD-1/PD-L1 (B7-H1) axis. In this issue of Clinical Cancer Research, preclinical evidence for a synergistic combination of such approaches is reported.
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Affiliation(s)
- Aizea Morales-Kastresana
- Authors' Affiliation: Center for Applied Medical Research, CIMA and University Clinic, University of Navarra, Pamplona, Spain
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