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Paul S, Konig MF, Pardoll DM, Bettegowda C, Papadopoulos N, Wright KM, Gabelli SB, Ho M, van Elsas A, Zhou S. Cancer therapy with antibodies. Nat Rev Cancer 2024; 24:399-426. [PMID: 38740967 PMCID: PMC11180426 DOI: 10.1038/s41568-024-00690-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/29/2024] [Indexed: 05/16/2024]
Abstract
The greatest challenge in cancer therapy is to eradicate cancer cells with minimal damage to normal cells. Targeted therapy has been developed to meet that challenge, showing a substantially increased therapeutic index compared with conventional cancer therapies. Antibodies are important members of the family of targeted therapeutic agents because of their extraordinarily high specificity to the target antigens. Therapeutic antibodies use a range of mechanisms that directly or indirectly kill the cancer cells. Early antibodies were developed to directly antagonize targets on cancer cells. This was followed by advancements in linker technologies that allowed the production of antibody-drug conjugates (ADCs) that guide cytotoxic payloads to the cancer cells. Improvement in our understanding of the biology of T cells led to the production of immune checkpoint-inhibiting antibodies that indirectly kill the cancer cells through activation of the T cells. Even more recently, bispecific antibodies were synthetically designed to redirect the T cells of a patient to kill the cancer cells. In this Review, we summarize the different approaches used by therapeutic antibodies to target cancer cells. We discuss their mechanisms of action, the structural basis for target specificity, clinical applications and the ongoing research to improve efficacy and reduce toxicity.
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Affiliation(s)
- Suman Paul
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| | - Maximilian F Konig
- Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Drew M Pardoll
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Chetan Bettegowda
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Katharine M Wright
- Discovery Chemistry, Merck Research Laboratory, Merck and Co, West Point, PA, USA
| | - Sandra B Gabelli
- Discovery Chemistry, Merck Research Laboratory, Merck and Co, West Point, PA, USA.
| | - Mitchell Ho
- Antibody Engineering Program, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA.
| | | | - Shibin Zhou
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
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2
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Amorós-Pérez B, Rivas-Pardo B, Gómez del Moral M, Subiza JL, Martínez-Naves E. State of the Art in CAR-T Cell Therapy for Solid Tumors: Is There a Sweeter Future? Cells 2024; 13:725. [PMID: 38727261 PMCID: PMC11083689 DOI: 10.3390/cells13090725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/13/2024] Open
Abstract
Chimeric antigen receptor (CAR)-T cell therapy has proven to be a powerful treatment for hematological malignancies. The situation is very different in the case of solid tumors, for which no CAR-T-based therapy has yet been approved. There are many factors contributing to the absence of response in solid tumors to CAR-T cells, such as the immunosuppressive tumor microenvironment (TME), T cell exhaustion, or the lack of suitable antigen targets, which should have a stable and specific expression on tumor cells. Strategies being developed to improve CAR-T-based therapy for solid tumors include the use of new-generation CARs such as TRUCKs or bi-specific CARs, the combination of CAR therapy with chemo- or radiotherapy, the use of checkpoint inhibitors, and the use of oncolytic viruses. Furthermore, despite the scarcity of targets, a growing number of phase I/II clinical trials are exploring new solid-tumor-associated antigens. Most of these antigens are of a protein nature; however, there is a clear potential in identifying carbohydrate-type antigens associated with tumors, or carbohydrate and proteoglycan antigens that emerge because of aberrant glycosylations occurring in the context of tumor transformation.
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Affiliation(s)
- Beatriz Amorós-Pérez
- Department of Immunology, Ophthalmology and ORL, School of Medicine, Universidad Complutense of Madrid (UCM), 28040 Madrid, Spain; (B.A.-P.); (B.R.-P.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Inmunotek S.L., 28805 Madrid, Spain;
| | - Benigno Rivas-Pardo
- Department of Immunology, Ophthalmology and ORL, School of Medicine, Universidad Complutense of Madrid (UCM), 28040 Madrid, Spain; (B.A.-P.); (B.R.-P.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
| | - Manuel Gómez del Moral
- Department of Cellular Biology, School of Medicine, Universidad Complutense of Madrid (UCM), 28040 Madrid, Spain;
| | | | - Eduardo Martínez-Naves
- Department of Immunology, Ophthalmology and ORL, School of Medicine, Universidad Complutense of Madrid (UCM), 28040 Madrid, Spain; (B.A.-P.); (B.R.-P.)
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
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3
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Zhou R, Wu ST, Yazdanifar M, Williams C, Sanders A, Brouwer C, Maher J, Mukherjee P. Mucin-1-Targeted Chimeric Antigen Receptor T Cells Are Effective and Safe in Controlling Solid Tumors in Immunocompetent Host. J Immunother 2024; 47:77-88. [PMID: 38270462 PMCID: PMC10913860 DOI: 10.1097/cji.0000000000000505] [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: 06/12/2023] [Accepted: 12/14/2023] [Indexed: 01/26/2024]
Abstract
The chimeric antigen receptor (CAR) T-cell therapy in solid epithelial tumors has been explored, however, with limited success. As much of the preclinical work has relied on xenograft models in immunocompromised animals, the immune-related efficacies and toxicities may have been missed. In this study, we engineered syngeneic murine CAR T cells targeting the tumor form of human mucin-1 (tMUC1) and tested the MUC1 CAR T cells' efficacy and toxicity in the immunocompetent human MUC1-expressing mouse models. The MUC1 CAR T cells significantly eliminated murine pancreatic and breast cancer cell lines in vitro. In vivo, MUC1 CAR T cells significantly slowed the mammary gland tumor progression in the spontaneous PyVMT×MUC1.Tg (MMT) mice, prevented lung metastasis, and prolonged survival. Most importantly, there was minimal short or long-term toxicity with acceptable levels of transient liver toxicity but no kidney toxicity. In addition, the mice did not show any signs of weight loss or other behavioral changes with the treatment. We also report that a single dose of MUC1 CAR T-cell treatment modestly reduced the pancreatic tumor burden in a syngeneic orthotopic model of pancreatic ductal adenocarcinoma given at late stage of an established tumor. Taken together, these findings suggested the further development of tMUC1-targeted CAR T cells as an effective and relatively safe treatment modality for various tMUC1-expressing solid tumors.
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Affiliation(s)
- Ru Zhou
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC
| | - Shu-ta Wu
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC
- Medpace, Irving, TX
| | - Mahboubeh Yazdanifar
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC
- Adaptive Biotechnologies, South San Francisco, CA
| | - Chandra Williams
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC
- Pfizer, Cambridge, MA
| | - Alexa Sanders
- Department of Bioinformatics, University of North Carolina at Charlotte, Charlotte, NC
| | - Cory Brouwer
- Department of Bioinformatics, University of North Carolina at Charlotte, Charlotte, NC
| | - John Maher
- King’s College London, School of Cancer and Pharmaceutical Sciences, Guy’s Cancer Centre, London, UK
| | - Pinku Mukherjee
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC
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Li J, Hu H, Lian K, Zhang D, Hu P, He Z, Zhang Z, Wang Y. CAR-NK cells in combination therapy against cancer: A potential paradigm. Heliyon 2024; 10:e27196. [PMID: 38486782 PMCID: PMC10937699 DOI: 10.1016/j.heliyon.2024.e27196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/17/2024] Open
Abstract
Various preclinical and a limited number of clinical studies of CAR-NK cells have shown promising results: efficient elimination of target cells without side effects similar to CAR-T therapy. However, the homing and infiltration abilities of CAR-NK cells are poor due to the inhibitory tumor microenvironment. From the perspective of clinical treatment strategies, combined with the biological and tumor microenvironment characteristics of NK cells, CAR-NK combination therapy strategies with anti-PD-1/PD-L1, radiotherapy and chemotherapy, kinase inhibitors, proteasome inhibitors, STING agonist, oncolytic virus, photothermal therapy, can greatly promote the proliferation, migration and cytotoxicity of the NK cells. In this review, we will summarize the targets selection, structure constructions and combinational therapies of CAR-NK cells for tumors to provide feasible combination strategies for overcoming the inhibitory tumor microenvironment and improving the efficacy of CAR-NK cells.
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Affiliation(s)
- Junping Li
- Department of Radiology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Hong Hu
- Department of Radiology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Kai Lian
- Department of Orthopedics, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Dongdong Zhang
- Department of Oncology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Pengchao Hu
- Department of Oncology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Zhibing He
- Department of Radiology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
| | - Zhenfeng Zhang
- Department of Radiology, Translational Medicine Center, Guangzhou Key Laboratory for Research and Development of Nano-Biomedical Technology for Diagnosis and Therapy & Guangdong Provincial Education Department Key Laboratory of Nano-Immunoregulation Tumour Microenvironment, Central Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Yong Wang
- Department of Radiology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, 441000, China
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Sugi T, Katoh Y, Ikeda T, Seta D, Iwata T, Nishio H, Sugawara M, Kato D, Katoh K, Kawana K, Yaguchi T, Kawakami Y, Hirai S. SCD1 inhibition enhances the effector functions of CD8 + T cells via ACAT1-dependent reduction of esterified cholesterol. Cancer Sci 2024; 115:48-58. [PMID: 37879607 PMCID: PMC10823278 DOI: 10.1111/cas.15999] [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: 06/08/2023] [Revised: 10/05/2023] [Accepted: 10/07/2023] [Indexed: 10/27/2023] Open
Abstract
We previously reported that the inhibition of stearoyl-CoA desaturase 1 (SCD1) enhances the antitumor function of CD8+ T cells indirectly via restoring production of DC recruiting chemokines by cancer cells and subsequent induction of antitumor CD8+ T cells. In this study, we investigated the molecular mechanism of direct enhancing effects of SCD1 inhibitors on CD8+ T cells. In vitro treatment of CD8+ T cells with SCD1 inhibitors enhanced IFN-γ production and cytotoxic activity of T cells along with decreased oleic acid and esterified cholesterol, which is generated by cholesterol esterase, acetyl-CoA acetyltransferase 1 (ACAT1), in CD8+ T cells. The addition of oleic acid or cholesteryl oleate reversed the enhanced functions of CD8+ T cells treated with SCD1 inhibitors. Systemic administration of SCD1 inhibitor to MCA205 tumor-bearing mice enhanced IFN-γ production of tumor-infiltrating CD8+ T cells, in which oleic acid and esterified cholesterol, but not cholesterol, were decreased. These results indicated that SCD1 suppressed effector functions of CD8+ T cells through the increased esterified cholesterol in an ACAT1-dependent manner, and SCD1 inhibition enhanced T cell activity directly through decreased esterified cholesterol. Finally, SCD1 inhibitors or ACAT1 inhibitors synergistically enhanced the antitumor effects of anti-PD-1 antibody therapy or CAR-T cell therapy in mouse tumor models. Therefore, the SCD1-ACAT1 axis is regulating effector functions of CD8+ T cells, and SCD1 inhibitors, and ACAT1 inhibitors are attractive drugs for cancer immunotherapy.
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Affiliation(s)
- Toshihiro Sugi
- Department of Obstetrics and GynecologyNihon University School of MedicineTokyoJapan
| | - Yuki Katoh
- Division of Anatomical Science, Department of Functional MorphologyNihon University School of MedicineTokyoJapan
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Toshikatsu Ikeda
- Division of Anatomical Science, Department of Functional MorphologyNihon University School of MedicineTokyoJapan
| | - Daichi Seta
- Nihon University School of MedicineTokyoJapan
| | - Takashi Iwata
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Hiroshi Nishio
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Masaki Sugawara
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Daiki Kato
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Kanoko Katoh
- Department of Obstetrics and GynecologyNihon University School of MedicineTokyoJapan
| | - Kei Kawana
- Department of Obstetrics and GynecologyNihon University School of MedicineTokyoJapan
| | - Tomonori Yaguchi
- Department of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and ImmunobiologyKyoto University Graduate School of MedicineKyotoJapan
| | - Yutaka Kawakami
- Department of Immunology, School of MedicineInternational University of Health and WelfareChibaJapan
| | - Shuichi Hirai
- Division of Anatomical Science, Department of Functional MorphologyNihon University School of MedicineTokyoJapan
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Chinsuwan T, Hirabayashi K, Mishima S, Hasegawa A, Tanaka M, Mochizuki H, Shimoi A, Murakami T, Yagyu S, Shimizu K, Nakazawa Y. Ligand-based, piggyBac-engineered CAR-T cells targeting EGFR are safe and effective against non-small cell lung cancers. Mol Ther Oncolytics 2023; 31:100728. [PMID: 37822488 PMCID: PMC10562194 DOI: 10.1016/j.omto.2023.100728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) is overexpressed in various cancers, including non-small cell lung cancer (NSCLC), and in some somatic cells at a limited level, rendering it an attractive antitumor target. In this study, we engineered chimeric antigen receptor (CAR)-T cells using the piggyBac transposon system, autologous artificial antigen-presenting cells, and natural ligands of EGFR. We showed that this approach yielded CAR-T cells with favorable phenotypes and CAR positivity. They exhibited potent antitumor activity against NSCLC both in vitro and in vivo. When administered to tumor-bearing mice and non-tumor-bearing cynomolgus macaques, they did not elicit toxicity despite their cross-reactivity to both murine and simian EGFRs. In total we tested three ligands and found that the CAR candidate with the highest affinity consistently displayed greater potency without adverse events. Taken together, our results demonstrate the feasibility and safety of targeting EGFR-expressing NSCLCs using ligand-based, piggyBac-engineered CAR-T cells. Our data also show that lowering the affinity of CAR molecules is not always beneficial.
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Affiliation(s)
- Thanyavi Chinsuwan
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Koichi Hirabayashi
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Shuji Mishima
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Aiko Hasegawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Miyuki Tanaka
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Center for Advanced Research of Gene and Cell Therapy, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Hidemi Mochizuki
- Center for Advanced Research of Gene and Cell Therapy, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Ina Research Inc., Ina, Nagano, Japan
| | - Akihito Shimoi
- Center for Advanced Research of Gene and Cell Therapy, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Ina Research Inc., Ina, Nagano, Japan
| | - Takashi Murakami
- Department of Microbiology, Faculty of Medicine, Saitama Medical University, Iruma, Saitama, Japan
| | - Shigeki Yagyu
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Center for Advanced Research of Gene and Cell Therapy, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Kimihiro Shimizu
- Division of General Thoracic Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Yozo Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Center for Advanced Research of Gene and Cell Therapy, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, Nagano, Japan
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Watabe T, Kabayama K, Naka S, Yamamoto R, Kaneda K, Serada S, Ooe K, Toyoshima A, Wang Y, Haba H, Kurimoto K, Kobayashi T, Shimosegawa E, Tomiyama N, Fukase K, Naka T. Immuno-PET and Targeted α-Therapy Using Anti-Glypican-1 Antibody Labeled with 89Zr or 211At: A Theranostic Approach for Pancreatic Ductal Adenocarcinoma. J Nucl Med 2023; 64:1949-1955. [PMID: 37827841 PMCID: PMC10690121 DOI: 10.2967/jnumed.123.266313] [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: 07/13/2023] [Revised: 09/06/2023] [Indexed: 10/14/2023] Open
Abstract
Glypican-1 (GPC1) is overexpressed in several solid cancers and is associated with tumor progression, whereas its expression is low in normal tissues. This study aimed to evaluate the potential of an anti-GPC1 monoclonal antibody (GPC1 mAb) labeled with 89Zr or 211At as a theranostic target in pancreatic ductal adenocarcinoma. Methods: GPC1 mAb clone 01a033 was labeled with 89Zr or 211At with a deferoxamine or decaborane linker, respectively. The internalization ability of GPC1 mAb was evaluated by fluorescence conjugation using a confocal microscope. PANC-1 xenograft mice (n = 6) were intravenously administered [89Zr]GPC1 mAb (0.91 ± 0.10 MBq), and PET/CT scanning was performed for 7 d. Uptake specificity was confirmed through a comparative study using GPC1-positive (BxPC-3) and GPC1-negative (BxPC-3 GPC1-knockout) xenografts (each n = 3) and a blocking study. DNA double-strand breaks were evaluated using the γH2AX antibody. The antitumor effect was evaluated by administering [211At]GPC1 mAb (∼100 kBq) to PANC-1 xenograft mice (n = 10). Results: GPC1 mAb clone 01a033 showed increased internalization ratios over time. One day after administration, a high accumulation of [89Zr]GPC1 mAb was observed in the PANC-1 xenograft (SUVmax, 3.85 ± 0.10), which gradually decreased until day 7 (SUVmax, 2.16 ± 0.30). The uptake in the BxPC-3 xenograft was significantly higher than in the BxPC-3 GPC1-knockout xenograft (SUVmax, 4.66 ± 0.40 and 2.36 ± 0.36, respectively; P = 0.05). The uptake was significantly inhibited in the blocking group compared with the nonblocking group (percentage injected dose per gram, 7.3 ± 1.3 and 12.4 ± 3.0, respectively; P = 0.05). DNA double-strand breaks were observed by adding 150 kBq of [211At]GPC1 and were significantly suppressed by the internalization inhibitor (dynasore), suggesting a substantial contribution of the internalization ability to the antitumor effect. Tumor growth suppression was observed in PANC-1 mice after the administration of [211At]GPC1 mAb. Internalization inhibitors (prochlorperazine) significantly inhibited the therapeutic effect of [211At]GPC1 mAb, suggesting an essential role in targeted α-therapy. Conclusion: [89Zr]GPC1 mAb PET showed high tumoral uptake in the early phase after administration, and targeted α-therapy using [211At]GPC1 mAb showed tumor growth suppression. GPC1 is a promising target for future applications for the precise diagnosis of pancreatic ductal adenocarcinoma and GPC1-targeted theranostics.
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Affiliation(s)
- Tadashi Watabe
- Department of Nuclear Medicine and Tracer Kinetics, Graduate School of Medicine, Osaka University, Suita, Japan;
- Institute for Radiation Sciences, Osaka University, Suita, Japan
| | - Kazuya Kabayama
- Institute for Radiation Sciences, Osaka University, Suita, Japan
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Sadahiro Naka
- Department of Pharmacy, Osaka University Hospital, Suita, Japan
| | - Ryuku Yamamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Kazuko Kaneda
- Institute for Radiation Sciences, Osaka University, Suita, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Satoshi Serada
- Institute for Biomedical Sciences Molecular Pathophysiology, Iwate Medical University, Yahaba, Japan
| | - Kazuhiro Ooe
- Institute for Radiation Sciences, Osaka University, Suita, Japan
| | | | - Yang Wang
- Nishina Center for Accelerator-Based Science, RIKEN, Saitama, Japan
| | - Hiromitsu Haba
- Nishina Center for Accelerator-Based Science, RIKEN, Saitama, Japan
| | - Kenta Kurimoto
- Department of Pharmacy, Osaka University Hospital, Suita, Japan
| | - Takanori Kobayashi
- Department of Nuclear Medicine and Tracer Kinetics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Eku Shimosegawa
- Department of Molecular Imaging in Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Noriyuki Tomiyama
- Institute for Radiation Sciences, Osaka University, Suita, Japan
- Department of Radiology, Graduate School of Medicine, Osaka University, Suita, Japan; and
| | - Koichi Fukase
- Institute for Radiation Sciences, Osaka University, Suita, Japan
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Tetsuji Naka
- Institute for Biomedical Sciences Molecular Pathophysiology, Iwate Medical University, Yahaba, Japan
- Division of Allergy and Rheumatology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
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Giardino Torchia ML, Moody G. DIALing-up the preclinical characterization of gene-modified adoptive cellular immunotherapies. Front Immunol 2023; 14:1264882. [PMID: 38090585 PMCID: PMC10713823 DOI: 10.3389/fimmu.2023.1264882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/27/2023] [Indexed: 12/18/2023] Open
Abstract
The preclinical characterization of gene modified adoptive cellular immunotherapy candidates for clinical development often requires the use of mouse models. Gene-modified lymphocytes (GML) incorporating chimeric antigen receptors (CAR) and T-cell receptors (TCR) into immune effector cells require in vivo characterization of biological activity, mechanism of action, and preclinical safety. Typically, this characterization involves the assessment of dose-dependent, on-target, on-tumor activity in severely immunocompromised mice. While suitable for the purpose of evaluating T cell-expressed transgene function in a living host, this approach falls short in translating cellular therapy efficacy, safety, and persistence from preclinical models to humans. To comprehensively characterize cell therapy products in mice, we have developed a framework called "DIAL". This framework aims to enable an end-to-end understanding of genetically engineered cellular immunotherapies in vivo, from infusion to tumor clearance and long-term immunosurveillance. The acronym DIAL stands for Distribution, Infiltration, Accumulation, and Longevity, compartmentalizing the systemic attributes of gene-modified cellular therapy and providing a platform for optimization with the ultimate goal of improving therapeutic efficacy. This review will discuss both existent and emerging examples of DIAL characterization in mouse models, as well as opportunities for future development and optimization.
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Affiliation(s)
| | - Gordon Moody
- Cell Therapy Unit, Oncology Research, AstraZeneca, Gaithersburg, MD, United States
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Mc Laughlin AM, Milligan PA, Yee C, Bergstrand M. Model-informed drug development of autologous CAR-T cell therapy: Strategies to optimize CAR-T cell exposure leveraging cell kinetic/dynamic modeling. CPT Pharmacometrics Syst Pharmacol 2023; 12:1577-1590. [PMID: 37448343 PMCID: PMC10681459 DOI: 10.1002/psp4.13011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/23/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023] Open
Abstract
Autologous Chimeric antigen receptor (CAR-T) cell therapy has been highly successful in the treatment of aggressive hematological malignancies and is also being evaluated for the treatment of solid tumors as well as other therapeutic areas. A challenge, however, is that up to 60% of patients do not sustain a long-term response. Low CAR-T cell exposure has been suggested as an underlying factor for a poor prognosis. CAR-T cell therapy is a novel therapeutic modality with unique kinetic and dynamic properties. Importantly, "clear" dose-exposure relationships do not seem to exist for any of the currently approved CAR-T cell products. In other words, dose increases have not led to a commensurate increase in the measurable in vivo frequency of transferred CAR-T cells. Therefore, alternative approaches beyond dose titration are needed to optimize CAR-T cell exposure. In this paper, we provide examples of actionable variables - design elements in CAR-T cell discovery, development, and clinical practice, which can be modified to optimize autologous CAR-T cell exposure. Most of these actionable variables can be assessed throughout the various stages of discovery and development as part of a well-informed research and development program. Model-informed drug development approaches can enable such study and program design choices from discovery through to clinical practice and can be an important contributor to cell therapy effectiveness and efficiency.
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Affiliation(s)
| | | | - Cassian Yee
- Department of Melanoma Medical OncologyThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
- Department of ImmunologyThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
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10
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Zhang Z, Liu C, Wang M, Sun R, Yang Z, Hua Z, Wu Y, Wu M, Wang H, Qiu W, Yin H, Yang M. Treating solid tumors with TCR-based chimeric antigen receptor targeting extra domain B-containing fibronectin. J Immunother Cancer 2023; 11:e007199. [PMID: 37586774 PMCID: PMC10432677 DOI: 10.1136/jitc-2023-007199] [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] [Accepted: 07/27/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND The suppression of chimeric antigen receptor (CAR) T cells by the tumor microenvironment (TME) is a crucial obstacle in the T-cell-based treatment of solid tumors. Extra domain B (EDB)-fibronectin is an oncofetal antigen expressed on the endothelium layer of the neovasculature and cancer cells. Though recognized as a T cell therapy target, engineered CAR T cells thus far have failed to demonstrate satisfactory in vivo efficacy. In this study, we report that targeting EDB-fibronectin by redirected TCR-CAR T cells (rTCR-CAR) bypasses the suppressive TME for solid tumor treatment and sufficiently suppressed tumor growth.We generated EDB-targeting CAR by fusing single-chain variable fragment to CD3ε, resulting in rTCR-CAR. Human primary T cells and Jurkat cells were used to study the EDB-targeting T cells. Differences to the traditional second-generation CAR T cell in signaling, immune synapse formation, and T cell exhaustion were characterized. Cytotoxicity of the rTCR-CAR T cells was tested in vitro, and therapeutic efficacies were demonstrated using xenograft models. METHODS RESULTS: In the xenograft models, the rTCR-CAR T cells demonstrated in vivo efficacies superior to that based on traditional CAR design. A significant reduction in tumor vessel density was observed alongside tumor growth inhibition, extending even to tumor models established with EDB-negative cancer cells. The rTCR-CAR bound to immobilized EDB, and the binding led to immune synapse structures superior to that formed by second-generation CARs. By a mechanism similar to that for the conventional TCR complex, EDB-fibronectin activated the rTCR-CAR, resulting in rTCR-CAR T cells with low basal activation levels and increased in vivo expansion. CONCLUSION Our study has demonstrated the potential of rTCR-CAR T cells targeting the EDB-fibronectin as an anticancer therapeutic. Engineered to possess antiangiogenic and cytotoxic activities, the rTCR-CAR T cells showed therapeutic efficacies not impacted by the suppressive TMEs. These combined characteristics of a single therapeutic agent point to its potential to achieve sustained control of solid tumors.
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Affiliation(s)
- Zhijie Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Chang Liu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Muhan Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Rongcheng Sun
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
- Jiangsu Cell Tech Medical Research Institute, Nanjing, Jiangsu, China
| | - Zhe Yang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Zhen Hua
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Yushuang Wu
- Jiangsu Cell Tech Medical Research Institute, Nanjing, Jiangsu, China
| | - Mengting Wu
- Jiangsu Cell Tech Medical Research Institute, Nanjing, Jiangsu, China
| | - Hang Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Wen Qiu
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongping Yin
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Meijia Yang
- Jiangsu Cell Tech Medical Research Institute, Nanjing, Jiangsu, China
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11
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Haydar D, Ibañez-Vega J, Crawford JC, Chou CH, Guy C, Meehl M, Yi Z, Langfitt D, Vogel P, DeRenzo C, Gottschalk S, Roussel MF, Thomas PG, Krenciute G. CAR T-cell design dependent remodeling of the brain tumor immune microenvironment identify macrophages as key players that inhibit or promote anti-tumor activity. RESEARCH SQUARE 2023:rs.3.rs-2972427. [PMID: 37333156 PMCID: PMC10275057 DOI: 10.21203/rs.3.rs-2972427/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Understanding interactions between adoptively transferred immune cells and the tumor immune microenvironment (TIME) is critical for developing successful T-cell based immunotherapies. Here we investigated the impact of the TIME and chimeric antigen receptor (CAR) design on anti-glioma activity of B7-H3-specific CAR T-cells. We show that five out of six B7-H3 CARs with varying transmembrane, co-stimulatory, and activation domains, exhibit robust functionality in vitro. However, in an immunocompetent glioma model, these CAR T-cells demonstrated significantly varied levels of anti-tumor activity. We used single-cell RNA sequencing to examine the brain TIME after CAR T-cell therapy. We show that the TIME composition was influenced by CAR T-cell treatment. We also found that successful anti-tumor responses were supported by the presence and activity of macrophages and endogenous T-cells. Together, our study demonstrates that efficacy of CAR T-cell therapy in high-grade glioma is dependent on CAR structural design and its capacity to modulate the TIME.
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Affiliation(s)
- Dalia Haydar
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
- Children’s National Hospital, Center for Cancer and Immunology Research, Washington, DC, USA
| | - Jorge Ibañez-Vega
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
| | | | - Ching-Heng Chou
- St. Jude Children’s Research Hospital, Department of Immunology, Memphis, TN, USA
| | - Cliff Guy
- St. Jude Children’s Research Hospital, Department of Immunology, Memphis, TN, USA
| | - Michaela Meehl
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
- University of Tennessee Health Science Center, Department of Microbiology Immunology Biochemistry, Memphis, TN, USA
| | - Zhongzhen Yi
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
- Children’s National Hospital, Center for Cancer and Immunology Research, Washington, DC, USA
| | - Deanna Langfitt
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
| | - Peter Vogel
- St. Jude Children’s Research Hospital, Department of Pathology, Memphis, TN, USA
| | - Christopher DeRenzo
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
| | - Stephen Gottschalk
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
| | - Martine F Roussel
- St. Jude Children’s Research Hospital, Department of Tumor Cell Biology, Memphis, TN, USA
| | - Paul G. Thomas
- St. Jude Children’s Research Hospital, Department of Immunology, Memphis, TN, USA
| | - Giedre Krenciute
- St. Jude Children’s Research Hospital, Department of Bone Marrow Transplantation and Cellular Therapy, Memphis, TN, USA
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12
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Li N, Quan A, Li D, Pan J, Ren H, Hoeltzel G, de Val N, Ashworth D, Ni W, Zhou J, Mackay S, Hewitt SM, Cachau R, Ho M. The IgG4 hinge with CD28 transmembrane domain improves V HH-based CAR T cells targeting a membrane-distal epitope of GPC1 in pancreatic cancer. Nat Commun 2023; 14:1986. [PMID: 37031249 PMCID: PMC10082787 DOI: 10.1038/s41467-023-37616-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 03/23/2023] [Indexed: 04/10/2023] Open
Abstract
Heterogeneous antigen expression is a key barrier influencing the activity of chimeric antigen receptor (CAR) T cells in solid tumors. Here, we develop CAR T cells targeting glypican-1 (GPC1), an oncofetal antigen expressed in pancreatic cancer. We report the generation of dromedary camel VHH nanobody (D4)-based CAR T cells targeting GPC1 and the optimization of the hinge (H) and transmembrane domain (TM) to improve activity. We find that a structurally rigid IgG4H and CD28TM domain brings the two D4 fragments in proximity, driving CAR dimerization and leading to enhanced T-cell signaling and tumor regression in pancreatic cancer models with low antigen density in female mice. Furthermore, single-cell-based proteomic and transcriptomic analysis of D4-IgG4H-CD28TM CAR T cells reveals specific genes (e.g., HMGB1) associated with high T-cell polyfunctionality. This study demonstrates the potential of VHH-based CAR T for pancreatic cancer therapy and provides an engineering strategy for developing potent CAR T cells targeting membrane-distal epitopes.
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Affiliation(s)
- Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Alex Quan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Dan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jiajia Pan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Hua Ren
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Gerard Hoeltzel
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Natalia de Val
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, 21702, USA
| | | | - Weiming Ni
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Jing Zhou
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Sean Mackay
- IsoPlexis Corporation, Branford, CT, 06405, USA
| | - Stephen M Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Raul Cachau
- Integrated Data Science Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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13
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Li D, Qin J, Zhou T, Li Y, Cheng X, Chen Z, Chen J, Zheng WV. Bispecific GPC3/PD‑1 CAR‑T cells for the treatment of HCC. Int J Oncol 2023; 62:53. [PMID: 36896779 PMCID: PMC10019756 DOI: 10.3892/ijo.2023.5501] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/06/2022] [Indexed: 03/11/2023] Open
Abstract
Constantly stimulated by the tumor microenvironment (TME), programmed death 1 (PD‑1) is elevated, and it interacts with PD ligand 1 (PD‑L1), rendering chimeric antigen receptor (CAR)‑T cells dysfunctional. Hence, CAR‑T cells immune to PD‑1‑induced immunosuppression were constructed to improve the function of CAR‑T cells in hepatocellular carcinoma (HCC). Double‑target CAR‑T cells, targeting glypican‑3 (GPC3) [a tumour-associated antigen (TAA)] and hindering PD‑1‑PD‑L1 binding, were established. The expression of GPC3, PD‑L1, and inhibitory receptors was measured using flow cytometry. The cytotoxicity, cytokine release, and differentiation level of CAR‑T cells were determined using lactate dehydrogenase release assay, enzyme‑linked immunosorbent assay, and flow cytometry, respectively. HCC cells were targeted and eliminated by double‑target CAR‑T cells. These double‑target CAR‑T cells limit PD‑1‑PD‑L1 binding and sustain cytotoxicity to PD‑L1+ HCC cells. The relatively low IR expression and differentiation level in double‑target CAR‑T cells in tumour tissues induced tumour‑suppression and extended survival in PD‑L1+ HCC TX models, as opposed to their single‑target counterparts. The results of the present study suggested that the newly constructed double‑target CAR‑T cells exhibit stronger tumour‑suppressing effects in HCC than their single‑target counterparts, which are common, suggesting the potential of strengthening CAR‑T cell activity in HCC treatment.
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Affiliation(s)
- Dezhi Li
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Jie Qin
- Department of Scientific and Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Tao Zhou
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yaqin Li
- Department of Infectious Disease, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Xianyi Cheng
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Zaizhong Chen
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Junhui Chen
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
- Correspondence to: Dr Junhui Chen or Dr Wei V. Zheng, Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, 1120 Lianhua Road, Shenzhen, Guangdong 518036, P.R. China, E-mail: , E-mail:
| | - Wei V. Zheng
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
- Correspondence to: Dr Junhui Chen or Dr Wei V. Zheng, Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, 1120 Lianhua Road, Shenzhen, Guangdong 518036, P.R. China, E-mail: , E-mail:
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14
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Dötsch S, Svec M, Schober K, Hammel M, Wanisch A, Gökmen F, Jarosch S, Warmuth L, Barton J, Cicin-Sain L, D’Ippolito E, Busch DH. Long-term persistence and functionality of adoptively transferred antigen-specific T cells with genetically ablated PD-1 expression. Proc Natl Acad Sci U S A 2023; 120:e2200626120. [PMID: 36853939 PMCID: PMC10013756 DOI: 10.1073/pnas.2200626120] [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: 01/12/2022] [Accepted: 12/16/2022] [Indexed: 03/01/2023] Open
Abstract
Engagement of the inhibitory T cell receptor programmed cell death protein 1 (PD-1) associates with dysfunctional states of pathogen- or tumor-specific T cells. Accordingly, systemic antibody-mediated blockade of PD-1 has become a central target for immunotherapies but is also associated with severe toxicities due to loss of peripheral tolerance. Therefore, selective ablation of PD-1 expression on adoptively transferred T cells through direct genetic knockout (KO) is currently being explored as an alternative therapeutic approach. However, since PD-1 might also be required for the regulation of physiological T cell function and differentiation, the suitability of PD-1 as an engineering target is controversial. In this study, we systematically investigated the maintenance of T cell functionality after CRISPR/Cas9-mediated PD-1 KO in vivo during and after acute and chronic antigen encounter. Under all tested conditions, PD-1 ablation preserved the persistence, differentiation, and memory formation of adoptively transferred receptor transgenic T cells. Functional PD-1 KO T cells expressing chimeric antigen receptors (CARs) targeting CD19 could be robustly detected for over 390 d in a syngeneic immunocompetent mouse model, in which constant antigen exposure was provided by continuous B cell renewal, representing the longest in vivo follow-up of CAR-T cells described to date. PD-1 KO CAR-T cells showed no evidence for malignant transformation during the entire observation period. Our data demonstrate that genetic ablation of PD-1 does not impair functionality and longevity of adoptively transferred T cells per se and therefore may be pursued more generally in engineered T cell-based immunotherapy to overcome a central immunosuppressive axis.
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Affiliation(s)
- Sarah Dötsch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Mortimer Svec
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Kilian Schober
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
- Mikrobiologisches Institut–Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054Erlangen, Germany
- Medical Immunology Campus Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Schlossplatz 1, 91054Erlangen, Germany
| | - Monika Hammel
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Andreas Wanisch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Füsun Gökmen
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Sebastian Jarosch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Linda Warmuth
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Jack Barton
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Luka Cicin-Sain
- Department of Viral Immunology, Helmholtz Centre for Infection Research, 38124Braunschweig, Germany
- Centre for Individualized Infection Medicine, a joint venture of Helmholtz Centre for Infection Research and Medical School Hannover, 38624Hannover, Germany
| | - Elvira D’Ippolito
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
| | - Dirk H. Busch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675Munich, Germany
- German Center for Infection Research, Deutschen Zentrum für Infektionsforschung (DZIF), Partner Site Munich, 81675Munich, Germany
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15
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Ghosh S, Fletcher NL, Huda P, Houston ZH, Howard CB, Lund ME, Lu Y, Campbell DH, Walsh BJ, Thurecht KJ. Pharmacokinetics and Biodistribution of 89Zr-Miltuximab and Its Antibody Fragments as Glypican-1 Targeting Immuno-PET Agents in Glioblastoma. Mol Pharm 2023; 20:1549-1563. [PMID: 36602058 DOI: 10.1021/acs.molpharmaceut.2c00760] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Glioblastoma (GBM) is the most aggressive form of primary brain cancer, accounting for about 85% of all primary central nervous system (CNS) tumors. With standard treatment strategies like surgery, radiation, and chemotherapy, the median survival time of patients with GBM is only 12-15 months from diagnosis. The poor prognosis of GBM is due to a very high tumor recurrence rate following initial treatment, indicating a dire need for improved diagnostic and therapeutic alternatives for this disease. Antibody-based immunotheranostics holds great promise in treating GBM, combining the theranostic applications of radioisotopes and target-specificity of antibodies. In this study, we developed and validated antibody-based positron emission tomography (PET) tracers targeting the heparan sulfate proteoglycan, glypican-1 (GPC-1), for noninvasive detection of disease using diagnostic molecular imaging. GPC-1 is overexpressed in multiple solid tumor types, including GBM, and is a promising biomarker for novel immunotheranostics. Here, we investigate zirconium-89 (89Zr)-conjugated Miltuximab (a clinical stage anti-GPC-1 monoclonal antibody developed by GlyTherix, Ltd.) and engineered fragments for their potential as immuno-PET tracers to detect GPC-1positive GBM tumors in preclinical models. We explore the effects of molecular size, avidity, and Fc-domain on the pharmacokinetics and biodistribution in vivo, by comparing in parallel the full-length antibody (Miltuximab), Fab'2, Fab, and single-chain variable fragment (scFv) formats. High radiolabeling efficiency (>95%) was demonstrated by all the formats and the stability post-radiolabeling was higher for larger constructs of Miltuximab and the Fab. Receptor-mediated internalization of all 89Zr-labeled formats was observed in a human GBM cell line in vitro, while full-length Miltuximab demonstrated the highest tumor retention (5.7 ± 0.94% ID/g, day-9 postinjection (p.i.)) and overall better tumor-to-background ratios than the smaller Fc-less formats. Results from in vivo PET image quantification and ex vivo scintillation counting were highly correlated. Altogether, 89Zr-DFO-Miltuximab appears to be an effective immuno-PET imaging agent for detecting GPC-1positive tumors such as GBM and the current results support utility of the Fc containing whole mAb format over smaller antibody fragments for this target.
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Affiliation(s)
- Saikat Ghosh
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia.,ARC Training Centre for Innovation in Biomedical Imaging Technology (CIBIT), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Pie Huda
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Zachary H Houston
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Christopher B Howard
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Maria E Lund
- GlyTherix Ltd, Ground Floor, 75 Talavera Road, Macquarie Park, New South Wales2113, Australia
| | - Yanling Lu
- GlyTherix Ltd, Ground Floor, 75 Talavera Road, Macquarie Park, New South Wales2113, Australia
| | - Douglas H Campbell
- GlyTherix Ltd, Ground Floor, 75 Talavera Road, Macquarie Park, New South Wales2113, Australia
| | - Bradley J Walsh
- GlyTherix Ltd, Ground Floor, 75 Talavera Road, Macquarie Park, New South Wales2113, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia.,ARC Training Centre for Innovation in Biomedical Imaging Technology (CIBIT), The University of Queensland, Brisbane, Queensland4072, Australia
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16
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Maher J, Davies DM. CAR-Based Immunotherapy of Solid Tumours-A Survey of the Emerging Targets. Cancers (Basel) 2023; 15:1171. [PMID: 36831514 PMCID: PMC9953954 DOI: 10.3390/cancers15041171] [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: 01/28/2023] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Immunotherapy with CAR T-cells has revolutionised the treatment of B-cell and plasma cell-derived cancers. However, solid tumours present a much greater challenge for treatment using CAR-engineered immune cells. In a partner review, we have surveyed data generated in clinical trials in which patients with solid tumours that expressed any of 30 discrete targets were treated with CAR-based immunotherapy. That exercise confirms that efficacy of this approach falls well behind that seen in haematological malignancies, while significant toxic events have also been reported. Here, we consider approximately 60 additional candidates for which such clinical data are not available yet, but where pre-clinical data have provided support for their advancement to clinical evaluation as CAR target antigens.
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Affiliation(s)
- John Maher
- CAR Mechanics Group, Guy’s Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, Great Maze Pond, London SE1 9RT, UK
- Department of Immunology, Eastbourne Hospital, Kings Drive, Eastbourne BN21 2UD, UK
- Leucid Bio Ltd., Guy’s Hospital, Great Maze Pond, London SE1 9RT, UK
| | - David M. Davies
- Leucid Bio Ltd., Guy’s Hospital, Great Maze Pond, London SE1 9RT, UK
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17
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Overcoming on-target, off-tumour toxicity of CAR T cell therapy for solid tumours. Nat Rev Clin Oncol 2023; 20:49-62. [PMID: 36418477 DOI: 10.1038/s41571-022-00704-3] [Citation(s) in RCA: 87] [Impact Index Per Article: 87.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2022] [Indexed: 11/25/2022]
Abstract
Therapies with genetically modified T cells that express chimeric antigen receptors (CARs) specific for CD19 or B cell maturation antigen (BCMA) are approved to treat certain B cell malignancies. However, translating these successes into treatments for patients with solid tumours presents various challenges, including the risk of clinically serious on-target, off-tumour toxicity (OTOT) owing to CAR T cell-mediated cytotoxicity against non-malignant tissues expressing the target antigen. Indeed, severe OTOT has been observed in various CAR T cell clinical trials involving patients with solid tumours, highlighting the importance of establishing strategies to predict, mitigate and control the onset of this effect. In this Review, we summarize current clinical evidence of OTOT with CAR T cells in the treatment of solid tumours and discuss the utility of preclinical mouse models in predicting clinical OTOT. We then describe novel strategies being developed to improve the specificity of CAR T cells in solid tumours, particularly the role of affinity tuning of target binders, logic circuits and synthetic biology. Furthermore, we highlight control strategies that can be used to mitigate clinical OTOT following cell infusion such as regulating or eliminating CAR T cell activity, exogenous control of CAR expression, and local administration of CAR T cells.
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18
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Jiang M, Qin B, Li X, Liu Y, Guan G, You J. New advances in pharmaceutical strategies for sensitizing anti-PD-1 immunotherapy and clinical research. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1837. [PMID: 35929522 DOI: 10.1002/wnan.1837] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/30/2022] [Accepted: 07/14/2022] [Indexed: 01/31/2023]
Abstract
Attempts have been made continuously to use nano-drug delivery system (NDDS) to improve the effect of antitumor therapy. In recent years, especially in the application of immunotherapy represented by antiprogrammed death receptor 1 (anti-PD-1), it has been vigorously developed. Nanodelivery systems are significantly superior in a number of aspects including increasing the solubility of insoluble drugs, enhancing their targeting ability, prolonging their half-life, and reducing side effects. It can not only directly improve the efficacy of anti-PD-1 immunotherapy, but also indirectly enhance the antineoplastic efficacy of immunotherapy by boosting the effectiveness of therapeutic modalities such as chemotherapy, radiotherapy, photothermal, and photodynamic therapy (PTT/PDT). Here, we summarize the studies published in recent years on the use of nanotechnology in pharmaceutics to improve the efficacy of anti-PD-1 antibodies, analyze their characteristics and shortcomings, and combine with the current clinical research on anti-PD-1 antibodies to provide a reference for the design of future nanocarriers, so as to further expand the clinical application prospects of NDDSs. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Mengshi Jiang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Bing Qin
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Xiang Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yu Liu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Guannan Guan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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19
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Lontos K, Wang Y, Colbert M, Kumar A, Joshi S, Philbin M, Wang Y, Frisch A, Lohmueller J, Rivadeneira DB, Delgoffe GM. Fully murine CD105-targeted CAR-T cells provide an immunocompetent model for CAR-T cell biology. Oncoimmunology 2022; 11:2131229. [PMID: 36275862 PMCID: PMC9586682 DOI: 10.1080/2162402x.2022.2131229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The modeling of chimeric antigen receptor (CAR) T cell therapies has been mostly focused on immunodeficient models. However, there are many advantages in studying CAR-T cell biology in an immunocompetent setting. We generated a fully murine CAR targeting CD105 (endoglin), a component of the TGFβ receptor expressed on the surface of certain solid tumors and acute leukemias. CD105-targeted CAR-T cells can be grown from various murine backgrounds, tracked in vivo by congenic marks, and be activated by CD105 in isolation or expressed by tumor cells. CD105-targeted CAR-T cells were toxic at higher doses but proved safe in lower doses and modestly effective in treating wild-type B16 melanoma-bearing mice. CAR-T cells infiltrating the tumor expressed high levels of exhaustion markers and exhibited metabolic insufficiencies. We also generated a human CD105 CAR, which was efficacious in treating human melanoma and acute myeloid leukemia in vivo. Our work details a new murine model of CAR-T cell therapy that can be used from immunologists to further our understanding of CAR-T cell biology. We also set the foundation for further exploration of CD105 as a possible human CAR-T cell target.
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Affiliation(s)
- Konstantinos Lontos
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
- Division of Hematology/Oncology, UPMC, Pittsburgh, PA, USA
| | - Yiyang Wang
- School of Medicine, Tsinghua University, Beijing, Peking, China
| | - Mason Colbert
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
| | - Alok Kumar
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
| | - Supriya Joshi
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
| | - Mary Philbin
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
| | - Yupeng Wang
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
- School of Medicine, Tsinghua University, Beijing, Peking, China
| | - Andrew Frisch
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
- Graduate Program of Microbiology and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jason Lohmueller
- Department of Surgery, Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Dayana B. Rivadeneira
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
| | - Greg M. Delgoffe
- Tumor Microenvironment Center, Department of Immunology, UPMC Hillman Cancer Center and University of Pittsburgh, Pittsburgh, PA, USA
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20
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Shaw TI, Zhao B, Li Y, Wang H, Wang L, Manley B, Stewart PA, Karolak A. Multi-omics approach to identifying isoform variants as therapeutic targets in cancer patients. Front Oncol 2022; 12:1051487. [PMID: 36505834 PMCID: PMC9730332 DOI: 10.3389/fonc.2022.1051487] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/07/2022] [Indexed: 11/25/2022] Open
Abstract
Cancer-specific alternatively spliced events (ASE) play a role in cancer pathogenesis and can be targeted by immunotherapy, oligonucleotide therapy, and small molecule inhibition. However, identifying actionable ASE targets remains challenging due to the uncertainty of its protein product, structure impact, and proteoform (protein isoform) function. Here we argue that an integrated multi-omics profiling strategy can overcome these challenges, allowing us to mine this untapped source of targets for therapeutic development. In this review, we will provide an overview of current multi-omics strategies in characterizing ASEs by utilizing the transcriptome, proteome, and state-of-art algorithms for protein structure prediction. We will discuss limitations and knowledge gaps associated with each technology and informatics analytics. Finally, we will discuss future directions that will enable the full integration of multi-omics data for ASE target discovery.
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Affiliation(s)
- Timothy I. Shaw
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States,*Correspondence: Timothy I. Shaw,
| | - Bi Zhao
- Department of Machine Learning, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Yuxin Li
- Center for Proteomics and Metabolomics, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Hong Wang
- Center for Proteomics and Metabolomics, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Liang Wang
- Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Brandon Manley
- Department of Genitourinary Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Paul A. Stewart
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Aleksandra Karolak
- Department of Machine Learning, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
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21
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Busato D, Mossenta M, Dal Bo M, Macor P, Toffoli G. The Proteoglycan Glypican-1 as a Possible Candidate for Innovative Targeted Therapeutic Strategies for Pancreatic Ductal Adenocarcinoma. Int J Mol Sci 2022; 23:ijms231810279. [PMID: 36142190 PMCID: PMC9499405 DOI: 10.3390/ijms231810279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/02/2022] [Accepted: 09/04/2022] [Indexed: 11/19/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) accounts for 90% of all pancreatic cancers, with a 5-year survival rate of 7% and 80% of patients diagnosed with advanced or metastatic malignancies. Despite recent advances in diagnostic testing, surgical techniques, and systemic therapies, there remain limited options for the effective treatment of PDAC. There is an urgent need to develop targeted therapies that are able to differentiate between cancerous and non-cancerous cells to reduce side effects and better inhibit tumor growth. Antibody-targeted strategies are a potentially effective option for introducing innovative therapies. Antibody-based immunotherapies and antibody-conjugated nanoparticle-based targeted therapies with antibodies targeting specific tumor-associated antigens (TAA) can be proposed. In this context, glypican-1 (GPC1), which is highly expressed in PDAC and not expressed or expressed at very low levels in non-malignant lesions and healthy pancreatic tissues, is a useful TAA that can be achieved by a specific antibody-based immunotherapy and antibody-conjugated nanoparticle-based targeted therapy. In this review, we describe the main clinical features of PDAC. We propose the proteoglycan GPC1 as a useful TAA for PDAC-targeted therapies. We also provide a digression on the main developed approaches of antibody-based immunotherapy and antibody-conjugated nanoparticle-based targeted therapy, which can be used to target GPC1.
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Affiliation(s)
- Davide Busato
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
- Correspondence: ; Tel.: +39-0434-659816
| | - Monica Mossenta
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Michele Dal Bo
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy
| | - Paolo Macor
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy
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22
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Gordon KS, Kyung T, Perez CR, Holec PV, Ramos A, Zhang AQ, Agarwal Y, Liu Y, Koch C, Starchenko A, Joughin BA, Lauffenburger DA, Irvine DJ, Hemann MT, Birnbaum ME. Screening for CD19-specific chimaeric antigen receptors with enhanced signalling via a barcoded library of intracellular domains. Nat Biomed Eng 2022; 6:855-866. [PMID: 35710755 PMCID: PMC9389442 DOI: 10.1038/s41551-022-00896-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 05/03/2022] [Indexed: 02/06/2023]
Abstract
The immunostimulatory intracellular domains (ICDs) of chimaeric antigen receptors (CARs) are essential for converting antigen recognition into antitumoural function. Although there are many possible combinations of ICDs, almost all current CARs rely on combinations of CD3𝛇, CD28 and 4-1BB. Here we show that a barcoded library of 700,000 unique CD19-specific CARs with diverse ICDs cloned into lentiviral vectors and transduced into Jurkat T cells can be screened at high throughput via cell sorting and next-generation sequencing to optimize CAR signalling for antitumoural functions. By using this screening approach, we identified CARs with new ICD combinations that, compared with clinically available CARs, endowed human primary T cells with comparable tumour control in mice and with improved proliferation, persistence, exhaustion and cytotoxicity after tumour rechallenge in vitro. The screening strategy can be adapted to other disease models, cell types and selection conditions, and could be used to improve adoptive cell therapies and to expand their utility to new disease indications.
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Affiliation(s)
- Khloe S. Gordon
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA,Singapore-MIT Alliance for Research and Technology Centre, Singapore 138602, Singapore
| | - Taeyoon Kyung
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Caleb R. Perez
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Patrick V. Holec
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Azucena Ramos
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Angela Q. Zhang
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Health, Science, and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yash Agarwal
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yunpeng Liu
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Catherine Koch
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Alina Starchenko
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Brian A. Joughin
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Douglas A. Lauffenburger
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA,Ragon Institute of MIT, MGH, and Harvard, Cambridge, MA, 02139, USA
| | - Darrell J. Irvine
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA,Ragon Institute of MIT, MGH, and Harvard, Cambridge, MA, 02139, USA
| | - Michael T. Hemann
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Michael E. Birnbaum
- Koch Institute for Integrative Cancer Research, Cambridge, MA, 02139, USA,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA,Singapore-MIT Alliance for Research and Technology Centre, Singapore 138602, Singapore,Ragon Institute of MIT, MGH, and Harvard, Cambridge, MA, 02139, USA,Correspondence and requests for materials should be addressed to M.E.B.
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23
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Preclinical Evaluation of CAR T Cell Function: In Vitro and In Vivo Models. Int J Mol Sci 2022; 23:ijms23063154. [PMID: 35328572 PMCID: PMC8955360 DOI: 10.3390/ijms23063154] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 01/12/2023] Open
Abstract
Immunotherapy using chimeric antigen receptor (CAR) T cells is a rapidly emerging modality that engineers T cells to redirect tumor-specific cytotoxicity. CAR T cells have been well characterized for their efficacy against B cell malignancies, and rigorously studied in other types of tumors. Preclinical evaluation of CAR T cell function, including direct tumor killing, cytokine production, and memory responses, is crucial to the development and optimization of CAR T cell therapies. Such comprehensive examinations are usually performed in different types of models. Model establishment should focus on key challenges in the clinical setting and the capability to generate reliable data to indicate CAR T cell therapeutic potency in the clinic. Further, modeling the interaction between CAR T cells and tumor microenvironment provides additional insight for the future endeavors to enhance efficacy, especially against solid tumors. This review will summarize both in vitro and in vivo models for CAR T cell functional evaluation, including how they have evolved with the needs of CAR T cell research, the information they can provide for preclinical assessment of CAR T cell products, and recent technology advances to test CAR T cells in more clinically relevant models.
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24
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Nguyen A, Johanning G, Shi Y. Emerging Novel Combined CAR-T Cell Therapies. Cancers (Basel) 2022; 14:cancers14061403. [PMID: 35326556 PMCID: PMC8945996 DOI: 10.3390/cancers14061403] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 12/08/2022] Open
Abstract
Simple Summary As a result of FDA approval of CAR-T cell treatments in the last few years, this immunotherapy has provided further direction to precision medicine through its combination with other therapeutic approaches. In the past year, several review articles have been published focusing on advances in this fast-developing field, especially with respect to efforts to overcome hurdles associated with applying CAR-T cells in solid tumors. This review paper focuses on combining CAR-T cell therapy with small molecule drugs, up-to-date progress in CAR-T cell therapy research, and advances in combined CAR-T immunotherapy with other treatments targeting solid tumors. Abstract Chimeric antigen receptors (CAR) T cells are T cells engineered to express membrane receptors with high specificity to recognize specific target antigens presented by cancer cells and are co-stimulated with intracellular signals to increase the T cell response. CAR-T cell therapy is emerging as a novel therapeutic approach to improve T cell specificity that will lead to advances in precision medicine. CAR-T cells have had impressive outcomes in hematological malignancies. However, there continue to be significant limitations of these therapeutic responses in targeting solid malignancies such as heterogeneous antigens in solid tumors, tumor immunosuppressive microenvironment, risk of on-target/off-tumor, infiltrating CAR-T cells, immunosuppressive checkpoint molecules, and cytokines. This review paper summarizes recent approaches and innovations through combination therapies of CAR-T cells and other immunotherapy or small molecule drugs to counter the above disadvantages to potentiate the activity of CAR-T cells.
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Affiliation(s)
- Anh Nguyen
- College of Graduate Studies, California Northstate University, Elk Grove, CA 95757, USA;
| | | | - Yihui Shi
- College of Medicine, California Northstate University, Elk Grove, CA 95757, USA
- Correspondence:
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25
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Ghosh S, Huda P, Fletcher N, Campbell D, Thurecht KJ, Walsh B. Clinical development of an anti-GPC-1 antibody for the treatment of cancer. Expert Opin Biol Ther 2022; 22:603-613. [DOI: 10.1080/14712598.2022.2033204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saikat Ghosh
- Centre for Advanced Imaging (CAI)-Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, Brisbane, QLD, Australia
| | - Pie Huda
- Centre for Advanced Imaging (CAI)-Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, Brisbane, QLD, Australia
| | - Nicholas Fletcher
- Centre for Advanced Imaging (CAI)-Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, Brisbane, QLD, Australia
| | | | - Kristofer J. Thurecht
- Centre for Advanced Imaging (CAI)-Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, Brisbane, QLD, Australia
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26
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Pan J, Ho M. Role of glypican-1 in regulating multiple cellular signaling pathways. Am J Physiol Cell Physiol 2021; 321:C846-C858. [PMID: 34550795 DOI: 10.1152/ajpcell.00290.2021] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Glypican-1 (GPC1) is one of the six glypican family members in humans. It is composed of a core protein with three heparan sulfate chains and attached to the cell membrane by a glycosyl-phosphatidylinositol anchor. GPC1 modulates various signaling pathways including fibroblast growth factors (FGF), vascular endothelial growth factor-A (VEGF-A), transforming growth factor-β (TGF-β), Wnt, Hedgehog (Hh), and bone morphogenic protein (BMP) through specific interactions with pathway ligands and receptors. The impact of these interactions on signaling pathways, activating or inhibitory, is dependent upon specific GPC1 domain interaction with pathway components, as well as cell surface context. In this review, we summarize the current understanding of the structure of GPC1, as well as its role in regulating multiple signaling pathways. We focus on the functions of GPC1 in cancer cells and how new insights into these signaling processes can inform its translational potential as a therapeutic target in cancer.
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Affiliation(s)
- Jiajia Pan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.,School of Life Sciences, East China Normal University, Shanghai, China
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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27
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Sabanathan D, Lund ME, Campbell DH, Walsh BJ, Gurney H. Radioimmunotherapy for solid tumors: spotlight on Glypican-1 as a radioimmunotherapy target. Ther Adv Med Oncol 2021; 13:17588359211022918. [PMID: 34646364 PMCID: PMC8504276 DOI: 10.1177/17588359211022918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/17/2021] [Indexed: 12/24/2022] Open
Abstract
Radioimmunotherapy (i.e., the use of radiolabeled tumor targeting antibodies) is an emerging approach for the diagnosis, therapy, and monitoring of solid tumors. Often using paired agents, each targeting the same tumor molecule, but labelled with an imaging or therapeutic isotope, radioimmunotherapy has achieved promising clinical results in relatively radio-resistant solid tumors such as prostate. Several approaches to optimize therapeutic efficacy, such as dose fractionation and personalized dosimetry, have seen clinical success. The clinical use and optimization of a radioimmunotherapy approach is, in part, influenced by the targeted tumor antigen, several of which have been proposed for different solid tumors. Glypican-1 (GPC-1) is a heparan sulfate proteoglycan that is expressed in a variety of solid tumors, but whose expression is restricted in normal adult tissue. Here, we discuss the preclinical and clinical evidence for the potential of GPC-1 as a radioimmunotherapy target. We describe the current treatment paradigm for several solid tumors expressing GPC-1 and suggest the potential clinical utility of a GPC-1 directed radioimmunotherapy for these tumors.
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Affiliation(s)
- Dhanusha Sabanathan
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | | | | | | | - Howard Gurney
- Faculty of Medicine, Health and Human Sciences, Macquarie University, 2 Technology Place, Sydney, NSW 2109, Australia
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28
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Alshammari FOFO, Al-Saraireh YM, Youssef AMM, Al-Sarayra YM, Alrawashdeh HM. Glypican-1 Overexpression in Different Types of Breast Cancers. Onco Targets Ther 2021; 14:4309-4318. [PMID: 34366675 PMCID: PMC8334627 DOI: 10.2147/ott.s315200] [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] [Received: 04/21/2021] [Accepted: 07/19/2021] [Indexed: 12/24/2022] Open
Abstract
Purpose Treatment of metastatic breast cancer patients is challenging and remains a major underlying cause of female mortality. Understanding molecular alterations in tumor development is critical to identify novel biomarkers and targets for cancer diagnosis and therapy. One of the aberrant cancer expressions gaining recent research interest is glypican-1. Several studies reported strong glypican-1 expression in various types of human cancers. However, none of these investigated glypican-1 expression in a large cohort of breast cancer histopathological subtypes. Patients and Methods Immunohistochemistry was used to assess glypican-1 expression in 220 breast cancer patients and its relation to demographic and clinical features, as well as important prognostic immunohistochemical markers for breast cancer. Results Intense glypican-1 expression was recognized in all breast cancer histopathological subtypes. Normal, healthy breast tissue displayed a heterogeneous low expression (20%). Importantly, a strong differential in glypican-1 expression was determined between normal and malignant breast tissues. Moreover, there was a significantly high rate of glypican-1 expression in advanced grades of breast cancer patients and larger tumor sizes. Unfortunately, the glypican-1 expression demonstrated no obvious relationship with the expression of various biomarkers in breast cancer. Conclusion This study may establish glypican-1 as a promising new therapeutic target for the development of therapy in breast cancer.
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Affiliation(s)
- Fatemah O F O Alshammari
- Department of Medical Lab technology, Faculty of health sciences, The Public Authority for Applied Education and Training, Kuwait, Kuwait
| | - Yousef M Al-Saraireh
- Department of Pharmacology, Faculty of Medicine, Mutah University, Al-karak, Jordan
| | - Ahmed M M Youssef
- Department of Pharmacology, Faculty of Pharmacy, Mutah University, Al-karak, Jordan
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29
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Anti-PD-1 antibodies as a salvage therapy for patients with diffuse large B cell lymphoma who progressed/relapsed after CART19/20 therapy. J Hematol Oncol 2021; 14:106. [PMID: 34225766 PMCID: PMC8259370 DOI: 10.1186/s13045-021-01120-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/29/2021] [Indexed: 12/20/2022] Open
Abstract
CD19-directed chimeric antigen receptor T cell (CART19) therapy is efficient and approved for relapsed/refractory diffuse large B cell lymphoma (DLBCL). To increase durable antitumor response, we previously designed tandem CART19/20 cells and shown longer progression-free survival. However, a proportion of CART19/20-treated patients will finally progress and require salvage therapies. In this study, we analyzed data from five patients with relapsed/refractory DLBCL who had disease progression or relapse following CART19/20 therapy and then treated with PD-1-blocking antibodies as salvage therapy. Two of five patients acquired complete remissions after anti-PD-1 therapy, including one patient remained ongoing remission for more than 21 months. One patient achieved a partial remission, and the other two had progressive diseases. No ≥ grade 3 treatment-related adverse events or cytokine release syndrome was observed. Immunohistochemistry of tumor specimens revealed higher PD-1/PD-L1 expression in responsive patients with anti-PD-1 therapy as compared to that in non-responders. After anti-PD-1 treatment, circulating T cells were activated in responders, and no significant expansion of CART19/20 cells was detected. Our data suggest that PD-1 blockade therapy can be active in patients with relapsed/refractory DLBCL after failure of CAR T cell therapy who had PD-L1 expression in tumor cells and high PD-1 level in tumor-infiltrated T cells.
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30
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Park CH. Making Potent CAR T Cells Using Genetic Engineering and Synergistic Agents. Cancers (Basel) 2021; 13:cancers13133236. [PMID: 34209505 PMCID: PMC8269169 DOI: 10.3390/cancers13133236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022] Open
Abstract
Immunotherapies are emerging as powerful weapons for the treatment of malignancies. Chimeric antigen receptor (CAR)-engineered T cells have shown dramatic clinical results in patients with hematological malignancies. However, it is still challenging for CAR T cell therapy to be successful in several types of blood cancer and most solid tumors. Many attempts have been made to enhance the efficacy of CAR T cell therapy by modifying the CAR construct using combination agents, such as compounds, antibodies, or radiation. At present, technology to improve CAR T cell therapy is rapidly developing. In this review, we particularly emphasize the most recent studies utilizing genetic engineering and synergistic agents to improve CAR T cell therapy.
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Affiliation(s)
- Chi Hoon Park
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Daejeon 34114, Korea; ; Tel.: +82-42-860-7416; Fax: +82-42-861-4246
- Medicinal & Pharmaceutical Chemistry, Korea University of Science and Technology, Daejeon 34113, Korea
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31
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Yang QE. Human cancer xenografts in immunocompromised mice provide an advanced genuine tumor model for research and drug development-A revisit of murine models for human cancers. Biochim Biophys Acta Gen Subj 2021; 1865:129929. [PMID: 33991617 DOI: 10.1016/j.bbagen.2021.129929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/12/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
Molecular and cell biology studies have proven that human cancers are an enormously heterogenous disease, even if they originate from the same organ and tissue with identical morphological characteristics. Cancer cells in tumors from different individuals exhibit somewhat different characteristics on multiple levels, such as with respect to 1) their genetic polymorphism; 2) epigenetic mechanisms; 3) group gene activation/inactivation; 4) cell metabolism behavior; 5) aberrant incomplete terminal differentiation; 6) proliferative potential; and 7) hierarchical structure. These multiple parameters and their different combinations determine the biological characteristics of the cancer cells and their malignant/metastatic manifestations. With progress in medical research, numerous unique vulnerable targets of cancer cells have been identified from different tumors. Modern anti-cancer drug development focuses on target-based cancer cell inhibition and elimination have greatly improved the outcome of patients with some specific cancers. The murine model of human cancer has proven to be an essential procedure for the evaluation of drug efficacy in mammalian and a key link in transferring anti-cancer drug from laboratory to clinics. As classical murine cancer xenograft models with different human cancer cell lines display limited value for personalized precision medicine, creating a complete human xenograft cancer bank with all levels of abnormalities in mice has become desperately needed. This article is a review of the pros and cons of different human x murine cancer models and an attempt to find a more suitable model for the study and discovery of new anti-cancer drugs and different combination therapies in this small animal model.
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Affiliation(s)
- Quan-En Yang
- Phycin, LLC., 4539 Metropolitan Court, Frederick, MD 21704, United States of America.
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Ceccarello E, Tabaglio T, Koh S, Oei V, Teo W, Jonathan OJ, Pavesi A, Chen Q, Bertoletti A, Wee KB, Guccione E. Splice-Switching Antisense Oligonucleotides as a Targeted Intrinsic Engineering Tool for Generating Armored Redirected T Cells. Nucleic Acid Ther 2021; 31:145-154. [PMID: 33567222 PMCID: PMC7997720 DOI: 10.1089/nat.2020.0905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Modification of specificity of T cells for the use in adoptive transfer (CAR- or TCR-redirected T cells) has revolutionized the therapy of liquid tumors and some infectious diseases. However, several obstacles are still hampering the efficacy of such potent therapy, hence concurrent modification of the function is also required to obtain successful results. Here we show the use of splice-switching antisense oligonucleotides (SSOs) as a tool to transiently modify T cell function. We demonstrate the possibility to transfect SSOs and an exogenous TCR into primary human T cells in the same electroporation reaction, without affecting viability and function of the transfected T lymphocytes. Moreover, we show that SSOs targeting T cell-specific mRNAs induce the skipping of the targeted exons, and the reduction of the protein and consequent modification of T cell function. This technical work paves the way to the use of SSOs in immune cells, not only for the knockdown of the functional isoform of the targeted proteins, but also for the protein manipulation by elimination of specific domains encoded by targeted exons.
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Affiliation(s)
- Erica Ceccarello
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.,Duke-NUS Medical School, Singapore, Singapore.,IMMUNOA Pte Ltd, Singapore, Singapore
| | - Tommaso Tabaglio
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Sarene Koh
- Lion TCR Pte Ltd, Singapore, Singapore.,Singapore Immunology Network, Agency for Science and Technology (A*STAR), Singapore, Singapore
| | - Vincent Oei
- Duke-NUS Medical School, Singapore, Singapore
| | - Winnie Teo
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Owen Julianto Jonathan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Andrea Pavesi
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Qingfeng Chen
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | | | - Keng Boon Wee
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Ernesto Guccione
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.,Department of Oncological Sciences and Pharmacological Sciences, Center for Therapeutics Discovery, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Kim SI, Cassella CR, Byrne KT. Tumor Burden and Immunotherapy: Impact on Immune Infiltration and Therapeutic Outcomes. Front Immunol 2021; 11:629722. [PMID: 33597954 PMCID: PMC7882695 DOI: 10.3389/fimmu.2020.629722] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 12/18/2020] [Indexed: 12/20/2022] Open
Abstract
Cancer immunotherapy has revolutionized the treatment landscape in medical oncology, but its efficacy has been variable across patients. Biomarkers to predict such differential response to immunotherapy include cytotoxic T lymphocyte infiltration, tumor mutational burden, and microsatellite instability. A growing number of studies also suggest that baseline tumor burden, or tumor size, predicts response to immunotherapy. In this review, we discuss the changes in immune profile and therapeutic responses that occur with increasing tumor size. We also overview therapeutic approaches to reduce tumor burden and favorably modulate the immune microenvironment of larger tumors.
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Affiliation(s)
- Samuel I Kim
- Program in Biochemistry, College of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, United States
| | - Christopher R Cassella
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Katelyn T Byrne
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Parker Institute for Cancer Immunotherapy, University of Pennsylvania, Philadelphia, PA, United States
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Sabanathan D, Campbell DH, Velonas VM, Wissmueller S, Mazure H, Trifunovic M, Poursoltan P, Ho Shon K, Mackay TR, Lund ME, Lu Y, Roach PJ, Bailey DL, Walsh BJ, Gillatt D, Gurney H. Safety and tolerability of Miltuximab ® - a first in human study in patients with advanced solid cancers. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE & BIOLOGY 2021; 9:86-100. [PMID: 34250138 PMCID: PMC8255523 DOI: 10.22038/aojnmb.2021.55600.1386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/16/2021] [Accepted: 04/17/2021] [Indexed: 01/31/2023]
Abstract
OBJECTIVES Miltuximab® is a chimeric antibody targeting Glypican-1 (GPC-1), a cell surface antigen which is overexpressed in solid cancers. Miltuximab® has shown promising safety and efficacy in radioimmunotherapy models of prostate cancer. This first in human study used Miltuximab® radiolabelled with Gallium-67 ([67Ga]Ga-DOTA-Miltuximab®). The primary study endpoint was to establish safety and tolerability of Miltuximab®. Secondary endpoints were biodistribution, tumour targeting and pharmacokinetic analysis. METHODS Four cohorts of three patients (9 with advanced prostate cancer, 2 with pancreatic and 1 with bladder cancer) were dosed with 1 mg, ~250 MBq of [67Ga]Ga-DOTA-Miltuximab®. Cohort 1 received [67Ga]Ga-DOTA-Miltuximab® alone, while cohorts 2-4 were pre-infused with increasing doses (3.5, 11.5 and 24 mg, respectively) of unlabelled Miltuximab®-DOTA 1 hour prior to [67Ga]Ga-DOTA-Miltuximab®. Safety and tolerability were assessed by clinical and standard laboratory assessments. Patients underwent whole body gamma-camera scans and SPECT/CT scans up to 144 h post-infusion. Total organ radiation exposure was determined by dosimetry of whole-body gamma scans. RESULTS The dosing regimen was well tolerated, with no drug-related adverse events observed. Liver and spleen uptake of [67Ga]Ga-DOTA-Miltuximab® was observed. Liver uptake was reduced by pre-infusion of unlabelled Miltuximab®-DOTA. Dosimetry analysis showed a favorable exposure profile. [67Ga]Ga-DOTA-Miltuximab® targeting to tumour sites was observed in two prostate cancer patients who had failed enzalutamide treatment. Higher doses of unlabelled antibody achieved lower liver uptake and increased antibody serum half life. CONCLUSIONS This study is the first in human for Miltuximab® a first in class antibody targeting GPC-1. The trial met its primary endpoint of safety, demonstrating its potential as a safe and tolerable monoclonal antibody. This safety data, together with targeting to tumour lesions and biodistribution information supports the further clinical development of Miltuximab® as a theranostic agent in a planned Phase I human trial.
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Affiliation(s)
- Dhanusha Sabanathan
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | | | - Vicki M. Velonas
- GlyTherix Ltd, 75 Talavera Road, Macquarie Park, Sydney, Australia
| | | | - Hubert Mazure
- GlyTherix Ltd, 75 Talavera Road, Macquarie Park, Sydney, Australia
| | | | - Pirooz Poursoltan
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | - Kevin Ho Shon
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | | | - Maria E. Lund
- GlyTherix Ltd, 75 Talavera Road, Macquarie Park, Sydney, Australia
| | - Yanling Lu
- GlyTherix Ltd, 75 Talavera Road, Macquarie Park, Sydney, Australia
| | | | | | - Bradley J. Walsh
- GlyTherix Ltd, 75 Talavera Road, Macquarie Park, Sydney, Australia
| | - David Gillatt
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | - Howard Gurney
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
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Abstract
PURPOSE OF REVIEW Immunotherapy with gene-engineered chimeric antigen receptor (CAR)-T cells has curative potential in advanced malignancies and undergoes a surging preclinical and clinical development. Here, we present a selection of new targets and technologies that illustrate the progress that is being made with the aspiration to make CAR-T cell therapy a universally applicable and effective treatment in cancer medicine. RECENT FINDINGS There is a rich pipeline of new target antigens for CAR-T cells in hematology and oncology that are rated based on uniformity but also stability of expression on tumor cells under therapeutic pressure. New technologies in CAR-T cell engineering are directed at neutralizing inhibitory ligands and factors in the tumor microenvironment, preventing CAR-T cell exhaustion and enhancing selectivity for tumor cells with 'smart' CAR designs. The manufacture of CAR-T cells using virus-free protocols is anticipated to reduce supply-chain complexity and to improve patient access. SUMMARY CD19 CAR-T cell therapy is an approved treatment for B-cell leukemia and -lymphoma and considering the current 'target and technology' pipeline, we anticipate that additional CAR-T cell products will accomplish their 'breakthrough' and clinical proof-of-concept in other indications in hematology and in oncology. Technologies to enhance therapeutic index and facilitate manufacturing will be key for assuring availability and accessibility of CAR-T cell products and their implementation into routine clinical practice.
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Abstract
PURPOSE OF REVIEW A number of clinical trials are currently testing chimeric antigen receptor (CAR) and T cell receptor (TCR) engineered T cells for the treatment of haematologic malignancies and selected solid tumours, and CD19-CAR-T cells have produced impressive clinical responses in B-cell malignancies. Here, we summarize the current state of the field, highlighting the key aspects required for the optimal application of CAR and TCR-engineered T cells for cancer immunotherapy. RECENT FINDINGS Toxicities, treatment failure and disease recurrence have been observed at different rates and kinetics. Several strategies have been designed to overcome these hurdles: the identification and combination of known and new antigens, together with the combination of immunotherapeutic and classical approaches may overcome cancer immune evasion. New protocols for genetic modification and T cell culture may improve the overall fitness of cellular products and their resistance to hostile tumour immunomodulatory signals. Finally, the schedules of T cell administration and toxicity management have been adapted to improve the safety of this transformative therapeutic approach. SUMMARY In order to develop effective adoptive T cell treatments for cancer, therapeutic optimization of engineered CAR and TCR T cells is crucial, by simultaneously focusing on intrinsic and extrinsic factors. This review focuses on the innovative approaches designed and tested to overcome the hurdles encountered so far in the clinical practice, with new excitement on novel laboratory insights and ongoing clinical investigations.
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Lund ME, Howard CB, Thurecht KJ, Campbell DH, Mahler SM, Walsh BJ. A bispecific T cell engager targeting Glypican-1 redirects T cell cytolytic activity to kill prostate cancer cells. BMC Cancer 2020; 20:1214. [PMID: 33302918 PMCID: PMC7727117 DOI: 10.1186/s12885-020-07562-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/23/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Glypican-1 is a heparan sulfate proteoglycan that is overexpressed in prostate cancer (PCa), and a variety of solid tumors. Importantly, expression is restricted in normal tissue, making it an ideal tumor targeting antigen. Since there is clinical and preclinical evidence of the efficacy of Bispecific T cell Engager (BiTE) therapy in PCa, we sought to produce and test the efficacy of a GPC-1 targeted BiTE construct based on the Miltuximab® sequence. Miltuximab® is a clinical stage anti-GPC-1 antibody that has proven safe in first in human trials. METHODS The single chain variable fragment (scFv) of Miltuximab® and the CD3 binding sequence of Blinatumomab were combined in a standard BiTE format. Binding of the construct to immobilised recombinant CD3 and GPC-1 antigens was assessed by ELISA and BiaCore, and binding to cell surface-expressed antigens was measured by flow cytometry. The ability of MIL-38-CD3 to activate T cells was assessed using in vitro co-culture assays with tumour cell lines of varying GPC-1 expression by measurement of CD69 and CD25 expression, before cytolytic activity was assessed in a similar co-culture. The release of inflammatory cytokines from T cells was measured by ELISA and expression of PD-1 on the T cell surface was measured by flow cytometry. RESULTS Binding activity of MIL-38-CD3 to both cell surface-expressed and immobilised recombinant GPC-1 and CD3 was retained. MIL-38-CD3 was able to mediate the activation of peripheral blood T cells from healthy individuals, resulting in the release of inflammatory cytokines TNF and IFN-g. Activation was reliant on GPC-1 expression as MIL-38-CD3 mediated only low level T cell activation in the presence of C3 cells (constitutively low GPC-1 expression). Activated T cells were redirected to lyse PCa cell lines PC3 and DU-145 (GPC-1 moderate or high expression, respectively) but could not kill GPC-1 negative Raji cells. The expression of PD-1 was up-regulated on the surface of MIL-38-CD3 activated T cells, suggesting potential for synergy with checkpoint inhibition. CONCLUSIONS This study reports preclinical findings into the efficacy of targeting GPC-1 in PCa with BiTE construct MIL-38-CD3. We show the specificity and efficacy of the construct, supporting its further preclinical development.
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Affiliation(s)
- Maria E Lund
- Glytherix Ltd, Suite 2 Ground Floor, 75 Talavera Road Macquarie Park, Sydney, NSW, 2113, Australia.
| | - Christopher B Howard
- Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD, 4072, Australia.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia.,ARC Training Centre for Biopharmaceutical Innovation, The University of Queensland, St Lucia, 4072, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD, 4072, Australia.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia.,ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, St Lucia, 4072, Australia
| | - Douglas H Campbell
- Glytherix Ltd, Suite 2 Ground Floor, 75 Talavera Road Macquarie Park, Sydney, NSW, 2113, Australia
| | - Stephen M Mahler
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia.,ARC Training Centre for Biopharmaceutical Innovation, The University of Queensland, St Lucia, 4072, Australia
| | - Bradley J Walsh
- Glytherix Ltd, Suite 2 Ground Floor, 75 Talavera Road Macquarie Park, Sydney, NSW, 2113, Australia.,ARC Training Centre for Innovation in Biomedical Imaging Technologies, The University of Queensland, St Lucia, 4072, Australia
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Chimeric antigen receptor T cell therapy and nephrotoxicity: From diagnosis to treatment strategies. Int Immunopharmacol 2020; 89:107072. [PMID: 33059198 DOI: 10.1016/j.intimp.2020.107072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/13/2020] [Accepted: 10/01/2020] [Indexed: 01/28/2023]
Abstract
Chimeric antigen receptor T (CAR-T) cell therapy is a breakthrough in cancer treatment. With the widespread use of this therapy, increasing evidence is available that CAR-T cell therapy is associated with acute kidney injury (AKI). Nephrologists need to understand the potential nephrotoxicity arising from CAR-T cell therapy. Determining the cause of AKI is a key factor of clinical management. This review focuses on the clinical use of CAR-T cell therapy and the cause and outcomes of nephrotoxicity with its use. We also provide clinical suggestions for clinicians towards both better diagnosis and management of AKI in those receiving CAR-T cell therapy.
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Abstract
Glypicans are a family of heparan sulfate proteoglycans that are attached to the cell membrane via a glycosylphosphatidylinositol anchor. Glypicans interact with multiple ligands, including morphogens, growth factors, chemokines, ligands, receptors, and components of the extracellular matrix through their heparan sulfate chains and core protein. Therefore, glypicans can function as coreceptors to regulate cell proliferation, cell motility, and morphogenesis. In addition, some glypicans are abnormally expressed in cancers, possibly involved in tumorigenesis, and have the potential to be cancer-specific biomarkers. Here, we provide a brief review focusing on the expression of glypicans in various cancers and their potential to be targets for cancer therapy.
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Affiliation(s)
- Nan Li
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Madeline R Spetz
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Mitchell Ho
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Crowther MD, Svane IM, Met Ö. T-Cell Gene Therapy in Cancer Immunotherapy: Why It Is No Longer Just CARs on The Road. Cells 2020; 9:cells9071588. [PMID: 32630096 PMCID: PMC7407663 DOI: 10.3390/cells9071588] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/24/2020] [Accepted: 06/26/2020] [Indexed: 12/26/2022] Open
Abstract
T-cells have a natural ability to fight cancer cells in the tumour microenvironment. Due to thymic selection and tissue-driven immunomodulation, these cancer-fighting T-cells are generally low in number and exhausted. One way to overcome these issues is to genetically alter T-cells to improve their effectiveness. This process can involve introducing a receptor that has high affinity for a tumour antigen, with two promising candidates known as chimeric-antigen receptors (CARs), or T-cell receptors (TCRs) with high tumour specificity. This review focuses on the editing of immune cells to introduce such novel receptors to improve immune responses to cancer. These new receptors redirect T-cells innate killing abilities to the appropriate target on cancer cells. CARs are modified receptors that recognise whole proteins on the surface of cancer cells. They have been shown to be very effective in haematological malignancies but have limited documented efficacy in solid cancers. TCRs recognise internal antigens and therefore enable targeting of a much wider range of antigens. TCRs require major histocompatibility complex (MHC) restriction but novel TCRs may have broader antigen recognition. Moreover, there are multiple cell types which can be used as targets to improve the “off-the-shelf” capabilities of these genetic engineering methods.
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Affiliation(s)
- Michael D. Crowther
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), Copenhagen University Hospital Herlev, 2730 Herlev, Denmark;
- Correspondence: (M.D.C.); (Ö.M.)
| | - Inge Marie Svane
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), Copenhagen University Hospital Herlev, 2730 Herlev, Denmark;
| | - Özcan Met
- Department of Oncology, National Center for Cancer Immune Therapy (CCIT-DK), Copenhagen University Hospital Herlev, 2730 Herlev, Denmark;
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Correspondence: (M.D.C.); (Ö.M.)
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Human Vaccines & Immunotherapeutics: news. Hum Vaccin Immunother 2020; 16:1003. [DOI: 10.1080/21645515.2020.1754079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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