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Kawai T, Ikegawa M, Ori D, Akira S. Decoding Toll-like receptors: Recent insights and perspectives in innate immunity. Immunity 2024; 57:649-673. [PMID: 38599164 DOI: 10.1016/j.immuni.2024.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/18/2024] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
Toll-like receptors (TLRs) are an evolutionarily conserved family in the innate immune system and are the first line of host defense against microbial pathogens by recognizing pathogen-associated molecular patterns (PAMPs). TLRs, categorized into cell surface and endosomal subfamilies, recognize diverse PAMPs, and structural elucidation of TLRs and PAMP complexes has revealed their intricate mechanisms. TLRs activate common and specific signaling pathways to shape immune responses. Recent studies have shown the importance of post-transcriptional regulation in TLR-mediated inflammatory responses. Despite their protective functions, aberrant responses of TLRs contribute to inflammatory and autoimmune disorders. Understanding the delicate balance between TLR activation and regulatory mechanisms is crucial for deciphering their dual role in immune defense and disease pathogenesis. This review provides an overview of recent insights into the history of TLR discovery, elucidation of TLR ligands and signaling pathways, and their relevance to various diseases.
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Affiliation(s)
- Taro Kawai
- Laboratory of Molecular Immunobiology, Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Nara 630-0192, Japan; Life Science Collaboration Center (LiSCo), Nara Institute of Science and Technology (NAIST), Nara 630-0192, Japan.
| | - Moe Ikegawa
- Laboratory of Molecular Immunobiology, Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Nara 630-0192, Japan
| | - Daisuke Ori
- Laboratory of Molecular Immunobiology, Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Nara 630-0192, Japan
| | - Shizuo Akira
- Center for Advanced Modalities and DSS (CAMaD), Osaka University, Osaka 565-0871, Japan; Laboratory of Host Defense, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan; Department of Host Defense, Research Institute for Microbial Diseases (RIMD), Osaka University, Osaka 565-0871, Japan.
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2
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Schendel DJ. Evolution by innovation as a driving force to improve TCR-T therapies. Front Oncol 2023; 13:1216829. [PMID: 37810959 PMCID: PMC10552759 DOI: 10.3389/fonc.2023.1216829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/16/2023] [Indexed: 10/10/2023] Open
Abstract
Adoptive cell therapies continually evolve through science-based innovation. Specialized innovations for TCR-T therapies are described here that are embedded in an End-to-End Platform for TCR-T Therapy Development which aims to provide solutions for key unmet patient needs by addressing challenges of TCR-T therapy, including selection of target antigens and suitable T cell receptors, generation of TCR-T therapies that provide long term, durable efficacy and safety and development of efficient and scalable production of patient-specific (personalized) TCR-T therapy for solid tumors. Multiple, combinable, innovative technologies are used in a systematic and sequential manner in the development of TCR-T therapies. One group of technologies encompasses product enhancements that enable TCR-T therapies to be safer, more specific and more effective. The second group of technologies addresses development optimization that supports discovery and development processes for TCR-T therapies to be performed more quickly, with higher quality and greater efficiency. Each module incorporates innovations layered onto basic technologies common to the field of immunology. An active approach of "evolution by innovation" supports the overall goal to develop best-in-class TCR-T therapies for treatment of patients with solid cancer.
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Affiliation(s)
- Dolores J. Schendel
- Medigene Immunotherapies GmbH, Planegg, Germany
- Medigene AG, Planegg, Germany
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3
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Jain S, Sheth RA. Modulating the tumor immune microenvironment with locoregional image-guided interventions. Front Immunol 2023; 13:1057597. [PMID: 36685505 PMCID: PMC9846152 DOI: 10.3389/fimmu.2022.1057597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/07/2022] [Indexed: 01/05/2023] Open
Abstract
Cancer immunotherapy has gained significant attention in recent years and has revolutionized the modern approach to cancer therapy. However, cancer immunotherapy is still limited in its full potential due to various tumor immune-avoidance behaviors and delivery barriers, and this is seen in the low objective response rates of most cancers to immunotherapy. A novel approach to immunotherapy utilizes image-guided administration of immunotherapeutic agents directly into a tumor site; this technique offers several advantages, including avoidance of potent toxicity, bypassing the tumor immunosuppressive microenvironment, and higher therapeutic bioavailability relative to systemic drug administration. This review presents the biological rationale for locoregional image-guided immunotherapy administration, summarizes the existing interventional oncology approaches to immunotherapy, and discusses emerging technological advances in biomaterials and drug delivery that could further advance the field of interventional oncology.
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Affiliation(s)
- Samagra Jain
- Department of Radiology, Baylor College of Medicine, Houston, TX, United States
| | - Rahul A. Sheth
- Department of Interventional Radiology, MD Anderson Cancer Center, Houston, TX, United States,*Correspondence: Rahul A. Sheth,
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4
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Heine H, Zamyatina A. Therapeutic Targeting of TLR4 for Inflammation, Infection, and Cancer: A Perspective for Disaccharide Lipid A Mimetics. Pharmaceuticals (Basel) 2022; 16:23. [PMID: 36678520 PMCID: PMC9864529 DOI: 10.3390/ph16010023] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/28/2022] Open
Abstract
The Toll-like receptor 4 (TLR4) signaling pathway plays a central role in the prompt defense against infectious challenge and provides immediate response to Gram-negative bacterial infection. The TLR4/MD-2 complex can sense and respond to various pathogen-associated molecular patterns (PAMPs) with bacterial lipopolysaccharide (LPS) being the most potent and the most frequently occurring activator of the TLR4-mediated inflammation. TLR4 is believed to be both a friend and foe since improperly regulated TLR4 signaling can result in the overactivation of immune responses leading to sepsis, acute lung injury, or pathologic chronic inflammation involved in cancer and autoimmune disease. TLR4 is also considered a legitimate target for vaccine adjuvant development since its activation can boost the adaptive immune responses. The dual action of the TLR4 complex justifies the efforts in the development of both TLR4 antagonists as antisepsis drug candidates or remedies for chronic inflammatory diseases and TLR4 agonists as vaccine adjuvants or immunotherapeutics. In this review, we provide a brief overview of the biochemical evidences for possible pharmacologic applications of TLR4 ligands as therapeutics and report our systematic studies on the design, synthesis, and immunobiological evaluation of carbohydrate-based TLR4 antagonists with nanomolar affinity for MD-2 as well as disaccharide-based TLR4 agonists with picomolar affinity for the TLR4/MD-2 complex.
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Affiliation(s)
- Holger Heine
- Research Group Innate Immunity, Research Center Borstel—Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Parkallee 22, 23845 Borstel, Germany
| | - Alla Zamyatina
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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5
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Uliano J, Nicolò E, Corvaja C, Taurelli Salimbeni B, Trapani D, Curigliano G. Combination immunotherapy strategies for triple-negative breast cancer: current progress and barriers within the pharmacological landscape. Expert Rev Clin Pharmacol 2022; 15:1399-1413. [DOI: 10.1080/17512433.2022.2142559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jacopo Uliano
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Eleonora Nicolò
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Carla Corvaja
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Medicine, University of Udine, Udine, Italy
| | - Beatrice Taurelli Salimbeni
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Clinical and Molecular Medicine, Oncology Unit, “La Sapienza” University of RomeAzienda Ospedaliera Sant’Andrea, Rome, Italy
| | - Dario Trapani
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Medical Oncology, Medical Oncology Dana Farber Cancer Institute, Boston, MA, USA
| | - Giuseppe Curigliano
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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6
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Lipid A analog CRX-527 conjugated to synthetic peptides enhances vaccination efficacy and tumor control. NPJ Vaccines 2022; 7:64. [PMID: 35739113 PMCID: PMC9226002 DOI: 10.1038/s41541-022-00484-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 05/13/2022] [Indexed: 11/09/2022] Open
Abstract
Adjuvants play a determinant role in cancer vaccination by optimally activating APCs and shaping the T cell response. Bacterial-derived lipid A is one of the most potent immune-stimulators known, and is recognized via Toll-like receptor 4 (TLR4). In this study, we explore the use of the synthetic, non-toxic, lipid A analog CRX-527 as an adjuvant for peptide cancer vaccines. This well-defined adjuvant was covalently conjugated to antigenic peptides as a strategy to improve vaccine efficacy. We show that coupling of this TLR4 agonist to peptide antigens improves vaccine uptake by dendritic cells (DCs), maturation of DCs and T cell activation in vitro, and stimulates DC migration and functional T cell priming in vivo. This translates into enhanced tumor protection upon prophylactic and therapeutic vaccination via intradermal injection against B16-OVA melanoma and HPV-related TC1 tumors. These results highlight the potential of CRX-527 as an adjuvant for molecularly defined cancer vaccines, and support the design of adjuvant-peptide conjugates as a strategy to optimize vaccine formulation.
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7
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Strobl S, Hofbauer K, Heine H, Zamyatina A. Lipid A Mimetics Based on Unnatural Disaccharide Scaffold as Potent TLR4 Agonists for Prospective Immunotherapeutics and Adjuvants. Chemistry 2022; 28:e202200547. [PMID: 35439332 PMCID: PMC9325513 DOI: 10.1002/chem.202200547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Indexed: 11/11/2022]
Abstract
TLR4 is a key pattern recognition receptor that can sense pathogen- and danger- associated molecular patterns to activate the downstream signaling pathways which results in the upregulation of transcription factors and expression of interferons and cytokines to mediate protective pro-inflammatory responses involved in immune defense. Bacterial lipid A is the primary TLR4 ligand with very complex, species-specific, and barely predictable structure-activity relationships. Given that therapeutic targeting of TLR4 is an emerging tool for management of a variety of human diseases, the development of novel TLR4 activating biomolecules other than lipid A is of vast importance. We report on design, chemical synthesis and immunobiology of novel glycan-based lipid A-mimicking molecules that can activate human and murine TLR4-mediated signaling with picomolar affinity. Exploiting crystal structure - based design we have created novel disaccharide lipid A mimetics (DLAMs) where the inherently flexible β(1→6)-linked diglucosamine backbone of lipid A is exchanged with a conformationally restrained non-reducing βGlcN(1↔1')βGlcN scaffold. Excellent stereoselectivity in a challenging β,β-1,1' glycosylation was achieved by tuning the reactivities of donor and acceptor molecules using protective group manipulation strategy. Divergent streamlined synthesis of β,β-1,1'-linked diglucosamine-derived glycolipids entailing multiple long-chain (R)-3- acyloxyacyl residues and up two three phosphate groups was developed. Specific 3D-molecular shape and conformational rigidity of unnatural β,β-1,1'-linked diglucosamine combined with carefully optimized phosphorylation and acylation pattern ensured efficient induction of the TLR4-mediated signaling in a species-independent manner.
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Affiliation(s)
- Sebastian Strobl
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Karin Hofbauer
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Holger Heine
- Research Group Innate ImmunityResearch Center Borstel-Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Disease (DZL)Parkallee 22Borstel23845Germany
| | - Alla Zamyatina
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
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8
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De Beck L, Awad RM, Basso V, Casares N, De Ridder K, De Vlaeminck Y, Gnata A, Goyvaerts C, Lecocq Q, San José-Enériz E, Verhulst S, Maes K, Vanderkerken K, Agirre X, Prosper F, Lasarte JJ, Mondino A, Breckpot K. Inhibiting Histone and DNA Methylation Improves Cancer Vaccination in an Experimental Model of Melanoma. Front Immunol 2022; 13:799636. [PMID: 35634329 PMCID: PMC9134079 DOI: 10.3389/fimmu.2022.799636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Immunotherapy has improved the treatment of malignant skin cancer of the melanoma type, yet overall clinical response rates remain low. Combination therapies could be key to meet this cogent medical need. Because epigenetic hallmarks represent promising combination therapy targets, we studied the immunogenic potential of a dual inhibitor of histone methyltransferase G9a and DNA methyltransferases (DNMTs) in the preclinical B16-OVA melanoma model. Making use of tumor transcriptomic and functional analyses, methylation-targeted epigenetic reprogramming was shown to induce tumor cell cycle arrest and apoptosis in vitro coinciding with transient tumor growth delay and an IFN-I response in immune-competent mice. In consideration of a potential impact on immune cells, the drug was shown not to interfere with dendritic cell maturation or T-cell activation in vitro. Notably, the drug promoted dendritic cell and, to a lesser extent, T-cell infiltration in vivo, yet failed to sensitize tumor cells to programmed cell death-1 inhibition. Instead, it increased therapeutic efficacy of TCR-redirected T cell and dendritic cell vaccination, jointly increasing overall survival of B16-OVA tumor-bearing mice. The reported data confirm the prospect of methylation-targeted epigenetic reprogramming in melanoma and sustain dual G9a and DNMT inhibition as a strategy to tip the cancer-immune set-point towards responsiveness to active and adoptive vaccination against melanoma.
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Affiliation(s)
- Lien De Beck
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Laboratory of Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Robin Maximilian Awad
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Veronica Basso
- Lymphocyte Activation Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Noelia Casares
- Immunology and Immunotherapy Program, Centro de Investigación Médica Aplicada (CIMA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Universidad de Navarra, Pamplona, Spain
| | - Kirsten De Ridder
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Yannick De Vlaeminck
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Alessandra Gnata
- Lymphocyte Activation Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Cleo Goyvaerts
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Quentin Lecocq
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Edurne San José-Enériz
- Hemato-Oncology Program, Centro de Investigación Médica Aplicada (CIMA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Universidad de Navarra, Pamplona, Spain
| | - Stefaan Verhulst
- Liver Cell Biology Research Group, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Ken Maes
- Laboratory of Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Center for Medical Genetics, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Xabier Agirre
- Hemato-Oncology Program, Centro de Investigación Médica Aplicada (CIMA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Universidad de Navarra, Pamplona, Spain
- Laboratory of Cancer Epigenetics, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Felipe Prosper
- Hemato-Oncology Program, Centro de Investigación Médica Aplicada (CIMA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Universidad de Navarra, Pamplona, Spain
- Laboratory of Cancer Epigenetics, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology and Cell Therapy Department, Clínica Universidad de Navarra, Universidad de Navarra, Pamplona, Spain
| | - Juan José Lasarte
- Immunology and Immunotherapy Program, Centro de Investigación Médica Aplicada (CIMA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Universidad de Navarra, Pamplona, Spain
| | - Anna Mondino
- Lymphocyte Activation Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Karine Breckpot
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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9
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The Critical Role of Toll-like Receptor-mediated Signaling in Cancer Immunotherapy. MEDICINE IN DRUG DISCOVERY 2022. [DOI: 10.1016/j.medidd.2022.100122] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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10
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Halwani AS, Panizo C, Isufi I, Herrera AF, Okada CY, Cull EH, Kis B, Chaves JM, Bartlett NL, Ai W, de la Cruz-Merino L, Bryan LJ, Houot R, Linton K, Briones J, Chau I, von Keudell GR, Lu H, Yakovich A, Chen M, Meulen JHT, Yurasov S, Hsu FJ, Flowers CR. Phase 1/2 study of intratumoral G100 (TLR4 agonist) with or without pembrolizumab in follicular lymphoma. Leuk Lymphoma 2021; 63:821-833. [PMID: 34865586 DOI: 10.1080/10428194.2021.2010057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Intratumoral injection of G100, a toll-like receptor 4 (TLR4) agonist, was shown pre-clinically to stimulate anti-tumor immune responses and tumor regression. This open-label, multicenter, phase 1/2 trial evaluated the safety, tolerability, and preliminary efficacy of intratumoral G100 injections following localized low-dose radiation in patients with follicular lymphoma (ClinicalTrials.gov #NCT02501473). The study was comprised of a G100 dose escalation (5 or 10 µg/dose, or 20 µg/dose for large tumors); a randomized component comparing G100 to G100 plus pembrolizumab; and G100 20 µg/dose expansion. Adverse events grade ≥3 were uncommon in patients treated with G100, and no unexpected toxicities were observed when combined with pembrolizumab. G100 20 µg (n = 18) resulted in an overall response rate of 33.3% and abscopal tumor regression in 72.2% of patients. This early-phase study provides a foundation for combining an intratumoral TLR4 agonist with agents to produce immune-mediated responses in follicular lymphoma with limited added toxicity.
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Affiliation(s)
- Ahmad S Halwani
- Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Carlos Panizo
- Department of Hematology and Hemotherapy, Clínica Universidad de Navarra; Instituto de Investigación Sanitaria de Navarra, University of Navarra, Pamplona, Spain
| | - Iris Isufi
- Department of Medicine (Hematology), Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Alex F Herrera
- Department of Hematology & Hematopoietic Cell Transportation, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Craig Y Okada
- Division of Hematology and Hematologic Malignancies, Oregon Health and Science University, Portland, OR, USA
| | - Elizabeth H Cull
- Medical Oncology and Hematology Oncology, Prisma Health, Greenville, SC, USA
| | - Bela Kis
- Diagnostic Imaging and Interventional Radiology, Moffitt Cancer Center, Tampa, FL, USA
| | - Jorge M Chaves
- Medical Oncology, Northwest Medical Specialties, Tacoma, WA, USA
| | - Nancy L Bartlett
- Division of Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Weiyun Ai
- Department of Medicine (Hematology/Oncology), Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Luis de la Cruz-Merino
- Department of Clinical Oncology, Hospital Universitario Virgen Macarena, Seville, Spain.,Department of Medicine, University of Seville, Seville, Spain
| | - Locke J Bryan
- Department of Medicine, Augusta University, Augusta, GA, USA
| | - Roch Houot
- Department of Hematology, CHU Rennes, University of Rennes, Rennes, France
| | - Kim Linton
- Medical Oncology, The Christie NHS Foundation Trust & The University of Manchester, Manchester, United Kingdom
| | - Javier Briones
- Department of Hematology, Hospital De La Santa Creu I Sant Pau, Barcelona, Spain
| | - Ian Chau
- Lymphoma Unit, Royal Marsden Hospital, London & Surrey, United Kingdom
| | | | - Hailing Lu
- Immune Design, South San Francisco, CA, USA
| | | | | | - Jan H Ter Meulen
- Immune Design, South San Francisco, CA, USA.,Obsidian Therapeutics, Inc., Cambridge, MA, USA
| | | | | | - Christopher R Flowers
- Winship Cancer Institute, Emory University, Atlanta, GA, USA.,CPRIT Scholar in Cancer Research, Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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11
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Xun Y, Yang H, Kaminska B, You H. Toll-like receptors and toll-like receptor-targeted immunotherapy against glioma. J Hematol Oncol 2021; 14:176. [PMID: 34715891 PMCID: PMC8555307 DOI: 10.1186/s13045-021-01191-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/13/2021] [Indexed: 02/08/2023] Open
Abstract
Glioma represents a fast proliferating and highly invasive brain tumor which is resistant to current therapies and invariably recurs. Despite some advancements in anti-glioma therapies, patients’ prognosis remains poor. Toll-like receptors (TLRs) act as the first line of defense in the immune system being the detectors of those associated with bacteria, viruses, and danger signals. In the glioma microenvironment, TLRs are expressed on both immune and tumor cells, playing dual roles eliciting antitumoral (innate and adaptive immunity) and protumoral (cell proliferation, migration, invasion, and glioma stem cell maintenance) responses. Up to date, several TLR-targeting therapies have been developed aiming at glioma bulk and stem cells, infiltrating immune cells, the immune checkpoint axis, among others. While some TLR agonists exhibited survival benefit in clinical trials, it attracts more attention when they are involved in combinatorial treatment with radiation, chemotherapy, immune vaccination, and immune checkpoint inhibition in glioma treatment. TLR agonists can be used as immune modulators to enhance the efficacy of other treatment, to avoid dose accumulation, and what brings more interests is that they can potentiate immune checkpoint delayed resistance to PD-1/PD-L1 blockade by upregulating PD-1/PD-L1 overexpression, thus unleash powerful antitumor responses when combined with immune checkpoint inhibitors. Herein, we focus on recent developments and clinical trials exploring TLR-based treatment to provide a picture of the relationship between TLR and glioma and their implications for immunotherapy.
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Affiliation(s)
- Yang Xun
- Department of Basic Medicine and Biomedical Engineering, School of Medicine, Foshan University, Foshan, 528000, Guangdong Province, China
| | - Hua Yang
- Department of Basic Medicine and Biomedical Engineering, School of Medicine, Foshan University, Foshan, 528000, Guangdong Province, China
| | - Bozena Kaminska
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, No.78 Heng-Zhi-Gang Road, Yue Xiu District, Guangzhou, 510095, China.,Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Hua You
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, No.78 Heng-Zhi-Gang Road, Yue Xiu District, Guangzhou, 510095, China.
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12
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Firmal P, Shah VK, Pant R, Chattopadhyay S. RING finger protein TOPORS modulates the expression of tumor suppressor SMAR1 in colorectal cancer via the TLR4-TRIF pathway. Mol Oncol 2021; 16:1523-1540. [PMID: 34689394 PMCID: PMC8978522 DOI: 10.1002/1878-0261.13126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/22/2021] [Indexed: 11/13/2022] Open
Abstract
TOP1‐binding arginine/serine‐rich protein (TOPORS), a really interesting new gene finger protein, has the ability to bind to a palindromic consensus DNA sequence that enables it to function as a potential transcriptional regulator. However, its role in regulating the transcription of cancer‐associated genes is yet to be explored. As Toll‐like receptor 4 (TLR4) agonists are known to regress solid tumors, we observed that lipopolysaccharide (LPS) induces TOPORS via a TLR4‐TIR domain‐containing adapter‐inducing interferon‐β‐dependent pathway, which in turn modulates the transcription of tumor suppressor scaffold/matrix attachment region‐binding protein 1 (SMAR1, also known as BANP). ChIP analysis showed that TOPORS binds on the SMAR1 promoter and its occupancy increases upon LPS treatment. A previous study from our laboratory revealed that SMAR1 acts as a repressor of signal transducer and activator of transcription 3 (STAT3) transcription. Tumor growth, as well as tumor‐associated macrophage polarization, depends on the status of the STAT1:STAT3 ratio. LPS‐induced SMAR1 expression decreases STAT3 expression and also skews the macrophage polarization toward M1 phenotype. In contrast, LPS failed to polarize tumor‐associated macrophages to M1 phenotype in a SMAR1‐silenced condition, which shows the involvement of SMAR1 in dictating the fate of colorectal cancer progression. Identification of the molecular mechanism behind LPS‐mediated tumor regression would be crucial for designing cancer treatment strategies involving bacterial components.
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Affiliation(s)
- Priyanka Firmal
- National Centre for Cell Science, S.P. Pune University Campus, Ganeshkhind, Pune, 411007
| | - Vibhuti Kumar Shah
- National Centre for Cell Science, S.P. Pune University Campus, Ganeshkhind, Pune, 411007
| | - Richa Pant
- National Centre for Cell Science, S.P. Pune University Campus, Ganeshkhind, Pune, 411007
| | - Samit Chattopadhyay
- National Centre for Cell Science, S.P. Pune University Campus, Ganeshkhind, Pune, 411007.,Department of Biological Sciences, BITS Pilani, K. K. Birla Goa Campus, NH 17B, Zuarinagar, Goa, 403726.,Indian Institute of Chemical Biology, Raja S C Mullick Road, Jadavpur, Kolkata, 700032
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13
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Grabowska J, Affandi AJ, van Dinther D, Nijen Twilhaar MK, Olesek K, Hoogterp L, Ambrosini M, Heijnen DAM, Klaase L, Hidalgo A, Asano K, Crocker PR, Storm G, van Kooyk Y, den Haan JMM. Liposome induction of CD8 + T cell responses depends on CD169 + macrophages and Batf3-dependent dendritic cells and is enhanced by GM3 inclusion. J Control Release 2021; 331:309-320. [PMID: 33493613 DOI: 10.1016/j.jconrel.2021.01.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 02/07/2023]
Abstract
Cancer vaccines aim to efficiently prime cytotoxic CD8+ T cell responses which can be achieved by vaccine targeting to dendritic cells. CD169+ macrophages have been shown to transfer antigen to dendritic cells and could act as an alternative target for cancer vaccines. Here, we evaluated liposomes containing the CD169/Siglec-1 binding ligand, ganglioside GM3, and the non-binding ligand, ganglioside GM1, for their capacity to target antigens to CD169+ macrophages and to induce immune responses. CD169+ macrophages demonstrated specific uptake of GM3 liposomes in vitro and in vivo that was dependent on a functional CD169 receptor. Robust antigen-specific CD8+ and CD4+ T and B cell responses were observed upon intravenous administration of GM3 liposomes containing the model antigen ovalbumin in the presence of adjuvant. Immunization of B16-OVA tumor bearing mice with all liposomes resulted in delayed tumor growth and improved survival. The absence of CD169+ macrophages, functional CD169 molecules, and cross-presenting Batf3-dependent dendritic cells (cDC1s) significantly impaired CD8+ T cell responses, while B cell responses were less affected. In conclusion, we demonstrate that inclusion of GM3 in liposomes enhance immune responses and that splenic CD169+ macrophages and cDC1s are required for induction of CD8+ T cell immunity after liposomal vaccination.
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Affiliation(s)
- J Grabowska
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - A J Affandi
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - D van Dinther
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - M K Nijen Twilhaar
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - K Olesek
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - L Hoogterp
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - M Ambrosini
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - D A M Heijnen
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - L Klaase
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - A Hidalgo
- Area of Cell and Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain
| | - K Asano
- Laboratory of Immune Regulation, School of Life Science, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - P R Crocker
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - G Storm
- Department of Pharmaceutics, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands; Department of Biomaterials, Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, the Netherlands; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - Y van Kooyk
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - J M M den Haan
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
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14
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Burn OK, Prasit KK, Hermans IF. Modulating the Tumour Microenvironment by Intratumoural Injection of Pattern Recognition Receptor Agonists. Cancers (Basel) 2020; 12:E3824. [PMID: 33352882 PMCID: PMC7765936 DOI: 10.3390/cancers12123824] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
Signalling through pattern recognition receptors (PRRs) leads to strong proinflammatory responses, enhancing the activity of antigen presenting cells and shaping adaptive immune responses against tumour associated antigens. Unfortunately, toxicities associated with systemic administration of these agonists have limited their clinical use to date. Direct injection of PRR agonists into the tumour can enhance immune responses by directly modulating the cells present in the tumour microenvironment. This can improve local antitumour activity, but importantly, also facilitates systemic responses that limit tumour growth at distant sites. As such, this form of therapy could be used clinically where metastatic tumour lesions are accessible, or as neoadjuvant therapy. In this review, we summarise current preclinical data on intratumoural administration of PRR agonists, including new strategies to optimise delivery and impact, and combination studies with current and promising new cancer therapies.
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Affiliation(s)
- Olivia K. Burn
- Malaghan Institute of Medical Research, P.O. Box 7060, Wellington 6042, New Zealand; (O.K.B.); (K.K.P.)
- Maurice Wilkins Centre, Private Bag 92019, Auckland 1042, New Zealand
| | - Kef K. Prasit
- Malaghan Institute of Medical Research, P.O. Box 7060, Wellington 6042, New Zealand; (O.K.B.); (K.K.P.)
- Maurice Wilkins Centre, Private Bag 92019, Auckland 1042, New Zealand
| | - Ian F. Hermans
- Malaghan Institute of Medical Research, P.O. Box 7060, Wellington 6042, New Zealand; (O.K.B.); (K.K.P.)
- Maurice Wilkins Centre, Private Bag 92019, Auckland 1042, New Zealand
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15
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Somaiah N, Chawla SP, Block MS, Morris JC, Do K, Kim JW, Druta M, Sankhala KK, Hwu P, Jones RL, Gnjatic S, Kim-Schulze S, Tuballes K, Yishak M, Lu H, Yakovich A, Ter Meulen J, Chen M, Kenney RT, Bohac C, Pollack SM. A Phase 1b Study Evaluating the Safety, Tolerability, and Immunogenicity of CMB305, a Lentiviral-Based Prime-Boost Vaccine Regimen, in Patients with Locally Advanced, Relapsed, or Metastatic Cancer Expressing NY-ESO-1. Oncoimmunology 2020; 9:1847846. [PMID: 33312760 PMCID: PMC7714520 DOI: 10.1080/2162402x.2020.1847846] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023] Open
Abstract
Preclinical data suggest that a "prime-boost" vaccine regimen using a target-expressing lentiviral vector for priming, followed by a recombinant protein boost, may be effective against cancer; however, this strategy has not been evaluated in a clinical setting. CMB305 is a prime-boost vaccine designed to induce a broad anti-NY-ESO-1 immune response. It is composed of LV305, which is an NY-ESO-1 expressing lentiviral vector, and G305, a recombinant adjuvanted NY-ESO-1 protein. This multicenter phase 1b, first-in-human trial evaluated CMB305 in patients with NY-ESO-1 expressing solid tumors. Safety was examined in a 3 + 3 dose-escalation design, followed by an expansion with CMB305 alone or in a combination with either oral metronomic cyclophosphamide or intratumoral injections of a toll-like receptor agonist (glucopyranosyl lipid A). Of the 79 patients who enrolled, 81.0% had sarcomas, 86.1% had metastatic disease, and 57.0% had progressive disease at study entry. The most common adverse events were fatigue (34.2%), nausea (26.6%), and injection-site pain (24.1%). In patients with soft tissue sarcomas, a disease control rate of 61.9% and an overall survival of 26.2 months (95% CI, 22.1-NA) were observed. CMB305 induced anti-NY-ESO-1 antibody and T-cell responses in 62.9% and 47.4% of patients, respectively. This is the first trial to test a prime-boost vaccine regimen in patients with advanced cancer. This approach is feasible, can be delivered safely, and with evidence of immune response as well as suggestion of clinical benefit.
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Affiliation(s)
- Neeta Somaiah
- Department of Sarcoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Sant P. Chawla
- Sarcoma Oncology Center, Santa Monica, CA, United States
| | - Matthew S. Block
- Department of Medical Oncology, Mayo Clinic, Rochester, MN, United States
| | - John C. Morris
- Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Khanh Do
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Joseph W. Kim
- Department of Medical Oncology, Yale School of Medicine, New Haven, CT, United States
| | - Mihaela Druta
- Medical Oncology, Moffitt Cancer Center, Tampa, FL, United States
| | - Kamalesh K. Sankhala
- Hematology/Oncology, Cedars-Sinai Medical Center, Beverly Hills, CA, United States
| | - Patrick Hwu
- Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Robin L. Jones
- Seattle Cancer Care Alliance, Seattle, WA
- Sarcoma Unit, Royal Marsden Hospital, London, UK
- Sarcoma Clinical Trials, Institute of Cancer Research, London, UK
| | - Sacha Gnjatic
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Seunghee Kim-Schulze
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Kevin Tuballes
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mahlet Yishak
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Hailing Lu
- Immune Design Corp., South San Francisco, CA, United States
- Biomarkers and Diagnostics, Seattle Genetics, Inc, Bothell, WA, United States
| | - Adam Yakovich
- Immune Design Corp., South San Francisco, CA, United States
- Medical Affairs, Replimune Group, Inc, Woburn, MA, United States
| | - Jan Ter Meulen
- Immune Design Corp., South San Francisco, CA, United States
| | - Michael Chen
- Immune Design Corp., South San Francisco, CA, United States
- *Sangamo Therapeutics, Inc., Brisbane, CA, United States
| | - Richard T. Kenney
- Immune Design Corp., South San Francisco, CA, United States
- Clin Reg Biologics, LLC, Potomac, MD, United States
| | - Chet Bohac
- Immune Design Corp., South San Francisco, CA, United States
- Macrogenics, Inc, Rockville, MD, United States
| | - Seth M. Pollack
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
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16
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Silva L, Egea J, Villanueva L, Ruiz M, Llopiz D, Repáraz D, Aparicio B, Lasarte-Cia A, Lasarte JJ, Ruiz de Galarreta M, Lujambio A, Sangro B, Sarobe P. Cold-Inducible RNA Binding Protein as a Vaccination Platform to Enhance Immunotherapeutic Responses Against Hepatocellular Carcinoma. Cancers (Basel) 2020; 12:cancers12113397. [PMID: 33207844 PMCID: PMC7696968 DOI: 10.3390/cancers12113397] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023] Open
Abstract
Therapies based on immune checkpoint inhibitors (ICPI) have yielded promising albeit limited results in patients with hepatocellular carcinoma (HCC). Vaccines have been proposed as combination partners to enhance response rates to ICPI. Thus, we analyzed the combined effect of a vaccine based on the TLR4 ligand cold-inducible RNA binding protein (CIRP) plus ICPI. Mice were immunized with vaccines containing ovalbumin linked to CIRP (OVA-CIRP), with or without ICPI, and antigen-specific responses and therapeutic efficacy were tested in subcutaneous and orthotopic mouse models of liver cancer. OVA-CIRP elicited polyepitopic T-cell responses, which were further enhanced when combined with ICPI (anti-PD-1 and anti-CTLA-4). Combination of OVA-CIRP with ICPI enhanced ICPI-induced therapeutic responses when tested in subcutaneous and intrahepatic B16-OVA tumors, as well as in the orthotopic PM299L HCC model. This effect was associated with higher OVA-specific T-cell responses in the periphery, although many tumor-infiltrating lymphocytes still displayed an exhausted phenotype. Finally, a new vaccine containing human glypican-3 linked to CIRP (GPC3-CIRP) induced clear responses in humanized HLA-A2.01 transgenic mice, which increased upon combination with ICPI. Therefore, CIRP-based vaccines may generate anti-tumor immunity to enhance ICPI efficacy in HCC, although blockade of additional checkpoint molecules and immunosuppressive targets should be also considered.
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Affiliation(s)
- Leyre Silva
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - Josune Egea
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - Lorea Villanueva
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
| | - Marta Ruiz
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - Diana Llopiz
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - David Repáraz
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - Belén Aparicio
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
| | - Aritz Lasarte-Cia
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
| | - Juan José Lasarte
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
| | - Marina Ruiz de Galarreta
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.R.d.G.); (A.L.)
| | - Amaia Lujambio
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.R.d.G.); (A.L.)
| | - Bruno Sangro
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
- Liver Unit, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Pablo Sarobe
- Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (L.S.); (J.E.); (L.V.); (M.R.); (D.L.); (D.R.); (B.A.); (A.L.-C.); (J.J.L.)
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain;
- Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas CIBEREHD, 31008 Pamplona, Spain
- Correspondence: ; Tel.: +34-948-194700 (ext. 813009)
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17
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Lu H, Betancur A, Chen M, Ter Meulen JH. Toll-Like Receptor 4 Expression on Lymphoma Cells Is Critical for Therapeutic Activity of Intratumoral Therapy With Synthetic TLR4 Agonist Glucopyranosyl Lipid A. Front Oncol 2020; 10:1438. [PMID: 32974162 PMCID: PMC7466407 DOI: 10.3389/fonc.2020.01438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/07/2020] [Indexed: 11/24/2022] Open
Abstract
Intratumoral (IT) injections of Glucopyranosyl lipid A (G100), a synthetic toll-like receptor 4 (TLR4) agonist formulated in a stable emulsion, resulted in T-cell inflammation of the tumor microenvironment (TME) and complete cure of 60% of mice with large established A20 lymphomas. Strong abscopal effects on un-injected lesions were observed in a bilateral tumor model and surviving mice resisted a secondary tumor challenge. Depletion of CD8 T-cells, but not CD4 or NK cells, abrogated the anti-tumor effect. Unexpectedly, TLR4 knock-out rendered A20 tumors completely non-responsive to G100. In vitro studies showed that GLA has direct effect on A20 cells, but not on A20 cells deficient for TLR4. As shown by genotyping and phenotyping analysis, G100 strongly activated antigen presentation functions in A20 cells in vitro and in vivo and induced their apoptosis in a dose dependent manner. Similarly, the TLR4 positive human mantle cell lymphoma line Mino showed in vitro activation with G100 that was blocked with an anti-TLR4 antibody. In the A20 model, direct activation of B-lymphoma cells with G100 is sufficient to induce protective CD8 T-cell responses and TLR4 expressing human B-cell lymphomas may be amenable to this therapy as well.
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Affiliation(s)
- Hailing Lu
- Immune Design Corp., Seattle, WA, United States
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