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Merchand-Reyes G, Bull MF, Santhanam R, Valencia-Pena ML, Murugesan RA, Chordia A, Mo XM, Robledo-Avila FH, Ruiz-Rosado JDD, Carson WE, Byrd JC, Woyach JA, Tridandapani S, Butchar JP. NOD2 activation enhances macrophage Fcγ receptor function and may increase the efficacy of antibody therapy. Front Immunol 2024; 15:1409333. [PMID: 38919608 PMCID: PMC11196781 DOI: 10.3389/fimmu.2024.1409333] [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: 03/29/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Introduction Therapeutic antibodies have become a major strategy to treat oncologic diseases. For chronic lymphocytic leukemia, antibodies against CD20 are used to target and elicit cytotoxic responses against malignant B cells. However, efficacy is often compromised due to a suppressive microenvironment that interferes with cellular immune responses. To overcome this suppression, agonists of pattern recognition receptors have been studied which promote direct cytotoxicity or elicit anti-tumoral immune responses. NOD2 is an intracellular pattern recognition receptor that participates in the detection of peptidoglycan, a key component of bacterial cell walls. This detection then mediates the activation of multiple signaling pathways in myeloid cells. Although several NOD2 agonists are being used worldwide, the potential benefit of these agents in the context of antibody therapy has not been explored. Methods Primary cells from healthy-donor volunteers (PBMCs, monocytes) or CLL patients (monocytes) were treated with versus without the NOD2 agonist L18-MDP, then antibody-mediated responses were assessed. In vivo, the Eµ-TCL1 mouse model of CLL was used to test the effects of L18-MDP treatment alone and in combination with anti-CD20 antibody. Results Treatment of peripheral blood mononuclear cells with L18-MDP led to activation of monocytes from both healthy donors and CLL patients. In addition, there was an upregulation of activating FcγR in monocytes and a subsequent increase in antibody-mediated phagocytosis. This effect required the NF-κB and p38 signaling pathways. Treatment with L18-MDP plus anti-CD20 antibody in the Eµ-TCL model of CLL led to a significant reduction of CLL load, as well as to phenotypic changes in splenic monocytes and macrophages. Conclusions Taken together, these results suggest that NOD2 agonists help overturn the suppression of myeloid cells, and may improve the efficacy of antibody therapy for CLL.
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MESH Headings
- Nod2 Signaling Adaptor Protein/agonists
- Nod2 Signaling Adaptor Protein/metabolism
- Nod2 Signaling Adaptor Protein/immunology
- Animals
- Humans
- Receptors, IgG/metabolism
- Receptors, IgG/immunology
- Mice
- Macrophages/immunology
- Macrophages/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Acetylmuramyl-Alanyl-Isoglutamine/pharmacology
- Female
- Mice, Inbred C57BL
- Signal Transduction
- Phagocytosis
- Rituximab/pharmacology
- Rituximab/therapeutic use
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Affiliation(s)
- Giovanna Merchand-Reyes
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Mikayla F. Bull
- College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Ramasamy Santhanam
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Maria L. Valencia-Pena
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
| | | | - Aadesh Chordia
- College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Xiaokui-Molly Mo
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, United States
| | - Frank H. Robledo-Avila
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States
| | - Juan De Dios Ruiz-Rosado
- Kidney and Urinary Tract Center, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, United States
- Division of Pediatric Nephrology and Hypertension, Nationwide Children’s Hospital, Columbus, OH, United States
| | | | - John C. Byrd
- Department of Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Jennifer A. Woyach
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Susheela Tridandapani
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Jonathan P. Butchar
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, United States
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Saleki K, Alijanizadeh P, Javanmehr N, Rezaei N. The role of Toll-like receptors in neuropsychiatric disorders: Immunopathology, treatment, and management. Med Res Rev 2024; 44:1267-1325. [PMID: 38226452 DOI: 10.1002/med.22012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 10/20/2023] [Accepted: 12/20/2023] [Indexed: 01/17/2024]
Abstract
Neuropsychiatric disorders denote a broad range of illnesses involving neurology and psychiatry. These disorders include depressive disorders, anxiety, schizophrenia, bipolar disorder, attention deficit hyperactivity disorder, autism spectrum disorders, headaches, and epilepsy. In addition to their main neuropathology that lies in the central nervous system (CNS), lately, studies have highlighted the role of immunity and neuroinflammation in neuropsychiatric disorders. Toll-like receptors (TLRs) are innate receptors that act as a bridge between the innate and adaptive immune systems via adaptor proteins (e.g., MYD88) and downstream elements; TLRs are classified into 13 families that are involved in normal function and illnesses of the CNS. TLRs expression affects the course of neuropsychiatric disorders, and is influenced during their pharmacotherapy; For example, the expression of multiple TLRs is normalized during the major depressive disorder pharmacotherapy. Here, the role of TLRs in neuroimmunology, treatment, and management of neuropsychiatric disorders is discussed. We recommend longitudinal studies to comparatively assess the cell-type-specific expression of TLRs during treatment, illness progression, and remission. Also, further research should explore molecular insights into TLRs regulation and related pathways.
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Affiliation(s)
- Kiarash Saleki
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- USERN Office, Babol University of Medical Sciences, Babol, Iran
- Department of e-Learning, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Parsa Alijanizadeh
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- USERN Office, Babol University of Medical Sciences, Babol, Iran
| | - Nima Javanmehr
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- USERN Office, Babol University of Medical Sciences, Babol, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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Pant S, Wainberg ZA, Weekes CD, Furqan M, Kasi PM, Devoe CE, Leal AD, Chung V, Basturk O, VanWyk H, Tavares AM, Seenappa LM, Perry JR, Kheoh T, McNeil LK, Welkowsky E, DeMuth PC, Haqq CM, O'Reilly EM. Lymph-node-targeted, mKRAS-specific amphiphile vaccine in pancreatic and colorectal cancer: the phase 1 AMPLIFY-201 trial. Nat Med 2024; 30:531-542. [PMID: 38195752 PMCID: PMC10878978 DOI: 10.1038/s41591-023-02760-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/11/2023] [Indexed: 01/11/2024]
Abstract
Pancreatic and colorectal cancers are often KRAS mutated and are incurable when tumor DNA or protein persists or recurs after curative intent therapy. Cancer vaccine ELI-002 2P enhances lymph node delivery and immune response using amphiphile (Amph) modification of G12D and G12R mutant KRAS (mKRAS) peptides (Amph-Peptides-2P) together with CpG oligonucleotide adjuvant (Amph-CpG-7909). We treated 25 patients (20 pancreatic and five colorectal) who were positive for minimal residual mKRAS disease (ctDNA and/or serum tumor antigen) after locoregional treatment in a phase 1 study of fixed-dose Amph-Peptides-2P and ascending-dose Amph-CpG-7909; study enrollment is complete with patient follow-up ongoing. Primary endpoints included safety and recommended phase 2 dose (RP2D). The secondary endpoint was tumor biomarker response (longitudinal ctDNA or tumor antigen), with exploratory endpoints including immunogenicity and relapse-free survival (RFS). No dose-limiting toxicities were observed, and the RP2D was 10.0 mg of Amph-CpG-7909. Direct ex vivo mKRAS-specific T cell responses were observed in 21 of 25 patients (84%; 59% both CD4+ and CD8+); tumor biomarker responses were observed in 21 of 25 patients (84%); biomarker clearance was observed in six of 25 patients (24%; three pancreatic and three colorectal); and the median RFS was 16.33 months. Efficacy correlated with T cell responses above or below the median fold increase over baseline (12.75-fold): median tumor biomarker reduction was -76.0% versus -10.2% (P < 0.0014), and the median RFS was not reached versus 4.01 months (hazard ratio = 0.14; P = 0.0167). ELI-002 2P was safe and induced considerable T cell responses in patients with immunotherapy-recalcitrant KRAS-mutated tumors. ClinicalTrials.gov identifier: NCT04853017 .
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Affiliation(s)
- Shubham Pant
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Zev A Wainberg
- University of California, Los Angeles, Los Angeles, CA, USA
| | | | | | | | | | - Alexis D Leal
- University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Olca Basturk
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Miles MA, Luong R, To EE, Erlich JR, Liong S, Liong F, Logan JM, O’Leary J, Brooks DA, Selemidis S. TLR9 Monotherapy in Immune-Competent Mice Suppresses Orthotopic Prostate Tumor Development. Cells 2024; 13:97. [PMID: 38201300 PMCID: PMC10778079 DOI: 10.3390/cells13010097] [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: 12/12/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Prostate cancer is ranked second in the world for cancer-related deaths in men, highlighting the lack of effective therapies for advanced-stage disease. Toll-like receptors (TLRs) and immunity have a direct role in prostate cancer pathogenesis, but TLR9 has been reported to contribute to both the progression and inhibition of prostate tumorigenesis. To further understand this apparent disparity, we have investigated the effect of TLR9 stimulation on prostate cancer progression in an immune-competent, syngeneic orthotopic mouse model of prostate cancer. Here, we utilized the class B synthetic agonist CPG-1668 to provoke a TLR9-mediated systemic immune response and demonstrate a significant impairment of prostate tumorigenesis. Untreated tumors contained a high abundance of immune-cell infiltrates. However, pharmacological activation of TLR9 resulted in smaller tumors containing significantly fewer M1 macrophages and T cells. TLR9 stimulation of tumor cells in vitro had no effect on cell viability or its downstream transcriptional targets, whereas stimulation in macrophages suppressed cancer cell growth via type I IFN. This suggests that the antitumorigenic effects of CPG-1668 were predominantly mediated by an antitumor immune response. This study demonstrated that systemic TLR9 stimulation negatively regulates prostate cancer tumorigenesis and highlights TLR9 agonists as a useful therapeutic for the treatment of prostate cancer.
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Affiliation(s)
- Mark A. Miles
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Raymond Luong
- Infection and Immunity Program, Biomedicine Discovery Institute, Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia
| | - Eunice E. To
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Jonathan R. Erlich
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Stella Liong
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Felicia Liong
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
| | - Jessica M. Logan
- Cancer Research Institute, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - John O’Leary
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, D8 Dublin, Ireland
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, St James’s Hospital, D8 Dublin, Ireland
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, D8 Dublin, Ireland
| | - Doug A. Brooks
- Cancer Research Institute, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
- Discipline of Histopathology, School of Medicine, Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, D8 Dublin, Ireland
| | - Stavros Selemidis
- Centre for Respiratory Science and Health, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia
- Infection and Immunity Program, Biomedicine Discovery Institute, Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia
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Yang X, Yang X, Du S, Hu C, Yang X, Wang X, Hu X, Rcheulishvili N, Wang PG, Lin J. A Subunit Vaccine Candidate Composed of Mpox Virus A29L, M1R, A35R, and B6R Elicits Robust Immune Response in Mice. Vaccines (Basel) 2023; 11:1420. [PMID: 37766097 PMCID: PMC10537547 DOI: 10.3390/vaccines11091420] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
With no specific antiviral drugs and preventive vaccines against Mpox virus (MPXV), the epidemic has led to the declaration of a Public Health Emergency of International Concern. As a developmental direction for new vaccines, studies of subunit vaccines based upon MPXV antigen proteins are lacking. In this study, A29L, M1R, A35R, and B6R of MPXV were expressed and purified from a prokaryotic system. The four MPXV antigen proteins in combination were mixed with aluminum hydroxide or CpG7909 as adjuvant, and subsequently used to inoculate mice. The results of enzyme-linked immunosorbent assay (ELISA), flow cytometry analyses, and enzyme-linked immunospot (ELISPOT) assays indicated that A29L, M1R, A35R, and B6R elicited high-level antigen-specific antibodies and CD4+ T cells-based cellular immune response in mice. Moreover, the results of virus neutralization assays suggested that sera from the mice immunized with four proteins elicited high neutralizing activities against the vaccinia virus. Notably, the results of ELISA, ELISPOT, and virus neutralization assays also showed that the CpG7909 adjuvant was more effective in inducing an immune response compared with the aluminum adjuvant. In summary, this study offers valuable insights for further studies of subunit vaccine candidates for the prevention of MPXV and other orthomyxoviruses.
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Affiliation(s)
- Xuetao Yang
- School of Nursing, Southwest Medical University, Luzhou 646000, China; (X.Y.); (X.Y.); (C.H.); (X.Y.)
- Pengbo Biotechnology Co., Ltd., Shenzhen 518000, China
| | - Xidan Yang
- School of Nursing, Southwest Medical University, Luzhou 646000, China; (X.Y.); (X.Y.); (C.H.); (X.Y.)
- Pengbo Biotechnology Co., Ltd., Shenzhen 518000, China
| | - Shouwen Du
- Department of Infectious Diseases, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), The Second Clinical Medical College of Jinan University, Shenzhen 518020, China;
| | - Congxia Hu
- School of Nursing, Southwest Medical University, Luzhou 646000, China; (X.Y.); (X.Y.); (C.H.); (X.Y.)
| | - Xiu Yang
- School of Nursing, Southwest Medical University, Luzhou 646000, China; (X.Y.); (X.Y.); (C.H.); (X.Y.)
- Pengbo Biotechnology Co., Ltd., Shenzhen 518000, China
| | - Xingyun Wang
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (X.W.); (X.H.)
| | - Xing Hu
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (X.W.); (X.H.)
| | - Nino Rcheulishvili
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (X.W.); (X.H.)
- Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - Peng George Wang
- Pengbo Biotechnology Co., Ltd., Shenzhen 518000, China
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (X.W.); (X.H.)
| | - Jihui Lin
- School of Nursing, Southwest Medical University, Luzhou 646000, China; (X.Y.); (X.Y.); (C.H.); (X.Y.)
- Pengbo Biotechnology Co., Ltd., Shenzhen 518000, China
- Department of Infectious Diseases, Shenzhen People’s Hospital (The First Affiliated Hospital, Southern University of Science and Technology), The Second Clinical Medical College of Jinan University, Shenzhen 518020, China;
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Therapeutic applications of toll-like receptors (TLRs) agonists in AML. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2022; 24:2319-2329. [PMID: 35962918 DOI: 10.1007/s12094-022-02917-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/27/2022] [Indexed: 10/15/2022]
Abstract
Acute myeloid leukemia (AML) is an aggressive type of blood cancer affecting bone marrow (BM). In AML, hematopoietic precursors are arrested in the early stages of development and are defined as the presence of ≥ 20% blasts (leukemia cells) in the BM. Toll-like receptors (TLR) are major groups of pattern recognition receptors expressed by almost all innate immune cells that enable them to detect a wide range of pathogen-associated molecular patterns and damage-associated molecular patterns to prime immune responses toward adaptive immunity. Because TLRs are commonly expressed on transformed immune system cells (ranging from blasts to memory cells), they can be a potential option for developing efficient clinical alternatives in hematologic tumors. This is because several in vitro and in vivo investigations have demonstrated that TLR signaling increased the immunogenicity of AML cells, making them more vulnerable to T cell-mediated invasion. This study aimed to review the current knowledge in this field and provide some insight into the therapeutic potentials of TLRs in AML.
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Rostamizadeh L, Molavi O, Rashid M, Ramazani F, Baradaran B, Lavasanaifar A, Lai R. Recent advances in cancer immunotherapy: Modulation of tumor microenvironment by Toll-like receptor ligands. BIOIMPACTS : BI 2022; 12:261-290. [PMID: 35677663 PMCID: PMC9124882 DOI: 10.34172/bi.2022.23896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 11/29/2021] [Accepted: 12/04/2021] [Indexed: 12/18/2022]
Abstract
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Immunotherapy is considered a promising approach for cancer treatment. An important strategy for cancer immunotherapy is the use of cancer vaccines, which have been widely used for cancer treatment. Despite the great potential of cancer vaccines for cancer treatment, their therapeutic effects in clinical settings have been limited. The main reason behind the lack of significant therapeutic outcomes for cancer vaccines is believed to be the immunosuppressive tumor microenvironment (TME). The TME counteracts the therapeutic effects of immunotherapy and provides a favorable environment for tumor growth and progression. Therefore, overcoming the immunosuppressive TME can potentially augment the therapeutic effects of cancer immunotherapy in general and therapeutic cancer vaccines in particular. Among the strategies developed for overcoming immunosuppression in TME, the use of toll-like receptor (TLR) agonists has been suggested as a promising approach to reverse immunosuppression. In this paper, we will review the application of the four most widely studied TLR agonists including agonists of TLR3, 4, 7, and 9 in cancer immunotherapy.
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Affiliation(s)
- Leila Rostamizadeh
- Department of Molecular Medicine, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ommoleila Molavi
- Biotechnology Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Rashid
- Department of Molecular Medicine, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Ramazani
- Department of Molecular Medicine, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Afsaneh Lavasanaifar
- Faculty of Pharmacy and Pharmaceutical Science, University of Alberta, Edmonton, Canada
| | - Raymond Lai
- Department of Laboratory Medicine & Pathology, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Canada
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Zhang Z, Kuo JCT, Yao S, Zhang C, Khan H, Lee RJ. CpG Oligodeoxynucleotides for Anticancer Monotherapy from Preclinical Stages to Clinical Trials. Pharmaceutics 2021; 14:pharmaceutics14010073. [PMID: 35056969 PMCID: PMC8780291 DOI: 10.3390/pharmaceutics14010073] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/16/2021] [Accepted: 12/26/2021] [Indexed: 11/29/2022] Open
Abstract
CpG oligodeoxynucleotides (CpG ODNs), the artificial versions of unmethylated CpG motifs that were originally discovered in bacterial DNA, are demonstrated not only as potent immunoadjuvants but also as anticancer agents by triggering toll-like receptor 9 (TLR9) activation in immune cells. TLR9 activation triggered by CpG ODN has been shown to activate plasmacytoid dendritic cells (pDCs) and cytotoxic T lymphocytes (CTLs), enhancing T cell-mediated antitumor immunity. However, the extent of antitumor immunity carried by TLR agonists has not been optimized individually or in combinations with cancer vaccines, resulting in a decreased preference for TLR agonists as adjuvants in clinical trials. Although various combination therapies involving CpG ODNs have been applied in clinical trials, none of the CpG ODN-based drugs have been approved by the FDA, owing to the short half-life of CpG ODNs in serum that leads to low activation of natural killer cells (NK cells) and CTLs, along with increases of pro-inflammatory cytokine productions. This review summarized the current innovation on CpG ODNs that are under clinical investigation and explored the future direction for CpG ODN-based nanomedicine as an anticancer monotherapy.
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Affiliation(s)
- Zhongkun Zhang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 W 12th Avenue, Columbus, OH 43210, USA; (Z.Z.); (J.C.-T.K.); (C.Z.); (H.K.)
| | - Jimmy Chun-Tien Kuo
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 W 12th Avenue, Columbus, OH 43210, USA; (Z.Z.); (J.C.-T.K.); (C.Z.); (H.K.)
| | - Siyu Yao
- Department of Food Science and Technology, The Ohio State University, 110 Parker Food Science and Technology Building, 2015 Fyffe Road, Columbus, OH 43210, USA;
| | - Chi Zhang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 W 12th Avenue, Columbus, OH 43210, USA; (Z.Z.); (J.C.-T.K.); (C.Z.); (H.K.)
| | - Hira Khan
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 W 12th Avenue, Columbus, OH 43210, USA; (Z.Z.); (J.C.-T.K.); (C.Z.); (H.K.)
- Department of Pharmacy, Abbottabad University of Science and Technology, Havelian, Abbottabad 22500, Pakistan
| | - Robert J. Lee
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, 500 W 12th Avenue, Columbus, OH 43210, USA; (Z.Z.); (J.C.-T.K.); (C.Z.); (H.K.)
- Correspondence: ; Tel.: +1-614-292-4172
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Leonard C, Montamat G, Davril C, Domingues O, Hunewald O, Revets D, Guerin C, Blank S, Heckendorn J, Jardon G, Hentges F, Ollert M. Comprehensive mapping of immune tolerance yields a regulatory TNF receptor 2 signature in a murine model of successful Fel d 1-specific immunotherapy using high-dose CpG adjuvant. Allergy 2021; 76:2153-2165. [PMID: 33345329 PMCID: PMC8359185 DOI: 10.1111/all.14716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 11/27/2020] [Accepted: 12/09/2020] [Indexed: 01/23/2023]
Abstract
Background The prevalence of allergy to cat is expanding worldwide. Allergen‐specific immunotherapy (AIT) has advantages over symptomatic pharmacotherapy and promises long‐lasting disease control in allergic patients. However, there is still a need to improve cat AIT regarding efficacy, safety, and adherence to the treatment. Here, we aim to boost immune tolerance to the major cat allergen Fel d 1 by increasing the anti‐inflammatory activity of AIT with the established immunomodulatory adjuvant CpG, but at a higher dose than previously used in AIT. Methods Together with CpG, we used endotoxin‐free Fel d 1 as therapeutic allergen throughout the study in a BALB/c model of allergy to Fel d 1, thus mimicking the conditions of human AIT trials. Multidimensional immune phenotyping including mass cytometry (CyTOF) was applied to analyze AIT‐specific immune signatures. Results We show that AIT with high‐dose CpG in combination with endotoxin‐free Fel d 1 reverts all major hallmarks of allergy. High‐dimensional CyTOF analysis of the immune cell signatures initiating and sustaining the AIT effect indicates the simultaneous engagement of both, the pDC‐Treg and B‐cell axis, with the emergence of a systemic GATA3+ FoxP3hi biTreg population. The regulatory immune signature also suggests the involvement of the anti‐inflammatory TNF/TNFR2 signaling cascade in NK and B cells at an early stage and in Tregs later during AIT. Conclusion Our results highlight the potential of CpG adjuvant in a novel formulation to be further exploited for inducing allergen‐specific tolerance in patients with cat allergy or other allergic diseases.
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Affiliation(s)
- Cathy Leonard
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Guillem Montamat
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- Department of Clinical Research University of Southern Denmark Odense Denmark
| | - Caroline Davril
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Olivia Domingues
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Oliver Hunewald
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Dominique Revets
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- Quantitative Biology Unit National Cytometry Platform Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Coralie Guerin
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- Quantitative Biology Unit National Cytometry Platform Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Simon Blank
- Center of Allergy and Environment (ZAUM) Technical University of Munich and Helmholtz Center Munich Member of the German Center of Lung Research (DZL) Munich Germany
| | - Justine Heckendorn
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - Gauthier Jardon
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
| | - François Hentges
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- National Unit of Immunology‐Allergology Centre Hospitalier de Luxembourg Luxembourg Luxembourg
| | - Markus Ollert
- Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
- Department of Dermatology and Allergy Center Odense Research Center for Anaphylaxis Odense University Hospital University of Southern Denmark Odense Denmark
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10
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Pahlavanneshan S, Sayadmanesh A, Ebrahimiyan H, Basiri M. Toll-Like Receptor-Based Strategies for Cancer Immunotherapy. J Immunol Res 2021; 2021:9912188. [PMID: 34124272 PMCID: PMC8166496 DOI: 10.1155/2021/9912188] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/28/2021] [Accepted: 05/09/2021] [Indexed: 12/16/2022] Open
Abstract
Toll-like receptors (TLRs) are expressed and play multiple functional roles in a variety of immune cell types involved in tumor immunity. There are plenty of data on the pharmacological targeting of TLR signaling using agonist molecules that boost the antitumor immune response. A recent body of research has also demonstrated promising strategies for improving the cell-based immunotherapy methods by inducing TLR signaling. These strategies include systemic administration of TLR antagonist along with immune cell transfer and also genetic engineering of the immune cells using TLR signaling components to improve the function of genetically engineered immune cells such as chimeric antigen receptor-modified T cells. Here, we explore the current status of the cancer immunotherapy approaches based on manipulation of TLR signaling to provide a perspective of the underlying rationales and potential clinical applications. Altogether, reviewed publications suggest that TLRs make a potential target for the immunotherapy of cancer.
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Affiliation(s)
- Saghar Pahlavanneshan
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Sayadmanesh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hamidreza Ebrahimiyan
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohsen Basiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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11
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Jin Y, Zhuang Y, Dong X, Liu M. Development of CpG oligodeoxynucleotide TLR9 agonists in anti-cancer therapy. Expert Rev Anticancer Ther 2021; 21:841-851. [PMID: 33831324 DOI: 10.1080/14737140.2021.1915136] [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: 01/22/2023]
Abstract
INTRODUCTION Toll-like receptor-9(TLR9) can recognize the foreign unmethylated CpG DNA, and thus intrigue a strong Th1 response which plays a crucial role in the innate and adaptive immune responses. To date, CpG oligodeoxynucleotide (ODN)-based TLR9 agonists have undergone four generations. Each generations' breakthroughs in immune activation, safety profiles and pharmacokinetic properties were confirmed by both preclinical and clinical studies. AREAS COVERED We reviewed the development and major clinical trials of TLR9 agonists and summarized the optimization strategies of each generation. The applications, limitations and prospects of TLR9 agonists in cancer immunotherapy are also discussed. EXPERT OPINION Clinical trials of CpG ODN TLR9 agonists as a single agent demonstrated insufficient efficacy to reverse the immunosuppressive status of majority of patients with high tumor burden. Therefore, more efforts are now been carried out in combination with chemotherapy, radiotherapy and immunotherapy maintenance therapy as well as vaccine adjuvant. Importantly, the synergistic and complementary effect of TLR9 agonists and tumor immune checkpoint inhibitor therapy is expected to exert greater potential. On the other hand, the double-edged sword effect of TLR9 activation in tumor and toxic effect reported in combination therapies should be noted and further studies required.
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Affiliation(s)
- Yizhen Jin
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Yuxin Zhuang
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Xiaowu Dong
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China.,Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Mei Liu
- Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, P.R. China
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12
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Xiong H, Veedu RN, Diermeier SD. Recent Advances in Oligonucleotide Therapeutics in Oncology. Int J Mol Sci 2021; 22:3295. [PMID: 33804856 PMCID: PMC8036554 DOI: 10.3390/ijms22073295] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 02/08/2023] Open
Abstract
Cancer is one of the leading causes of death worldwide. Conventional therapies, including surgery, radiation, and chemotherapy have achieved increased survival rates for many types of cancer over the past decades. However, cancer recurrence and/or metastasis to distant organs remain major challenges, resulting in a large, unmet clinical need. Oligonucleotide therapeutics, which include antisense oligonucleotides, small interfering RNAs, and aptamers, show promising clinical outcomes for disease indications such as Duchenne muscular dystrophy, familial amyloid neuropathies, and macular degeneration. While no approved oligonucleotide drug currently exists for any type of cancer, results obtained in preclinical studies and clinical trials are encouraging. Here, we provide an overview of recent developments in the field of oligonucleotide therapeutics in oncology, review current clinical trials, and discuss associated challenges.
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Affiliation(s)
- Haoyu Xiong
- Department of Biochemistry, University of Otago, Dunedin 9016, New Zealand;
| | - Rakesh N. Veedu
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth 6150, Australia;
- Perron Institute for Neurological and Translational Science, Perth 6009, Australia
| | - Sarah D. Diermeier
- Department of Biochemistry, University of Otago, Dunedin 9016, New Zealand;
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13
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Wang Z, Weiner GJ. Immune checkpoint markers and anti-CD20-mediated NK cell activation. J Leukoc Biol 2021; 110:723-733. [PMID: 33615552 DOI: 10.1002/jlb.5a0620-365r] [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] [Received: 06/09/2020] [Revised: 10/13/2020] [Accepted: 11/15/2020] [Indexed: 12/24/2022] Open
Abstract
Anti-CD20 mAb is an effective therapy for most B-cell malignancies. Checkpoint blockade has been used to enhance T-cell-mediated antitumor response. Little is known about the biologic significance of immune checkpoints expressed by NK cells in anti-CD20-based therapy. To investigate the role of checkpoints in anti-CD20-mediated NK cell biology, Raji B-cell lymphoma cells, and PBMCs from normal donors were cocultured with rituximab (RTX), obinutuzumab (OBZ), or trastuzumab as a control mAb for between 20 h and 9 d. RTX and OBZ induced a dose-dependent NK cell up-regulation of T-cell immunoreceptor with Ig and ITIM domain (TIGIT) and T-cell immunoglobulin mucin-3 (TIM3), but not PD1, CTLA4, or LAG3. Resting CD56dim NK had higher TIGIT and TIM3 expression than resting CD56bright NK although TIGIT and TIM3 were up-regulated on both subsets. NK cells with the CD16 158VV single nucleotide polymorphism had greater TIM3 up-regulation than did NK from VF or FF donors. TIGIT+ and TIM3+ NK cells degranulated, produced cytokines, and expressed activation markers to a greater degree than did TIGIT- or TIM3- NK cells. Blockade of TIGIT, TIM3, or both had little impact on RTX-induced NK cell proliferation, degranulation, cytokine production, or activation. Taken together, TIGIT and TIM3 can serve as markers for anti-CD20-mediated NK cell activation, but may not serve well as targets for enhancing the anti-tumor activity of such therapy.
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Affiliation(s)
- Zhaoming Wang
- Cancer Biology Graduate Program, Carver College of Medicine, the University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, Carver College of Medicine, the University of Iowa, Iowa City, Iowa, USA
| | - George J Weiner
- Cancer Biology Graduate Program, Carver College of Medicine, the University of Iowa, Iowa City, Iowa, USA.,Holden Comprehensive Cancer Center, Carver College of Medicine, the University of Iowa, Iowa City, Iowa, USA.,Department of Internal Medicine, Carver College of Medicine, the University of Iowa, Iowa City, Iowa, USA
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14
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Montamat G, Leonard C, Poli A, Klimek L, Ollert M. CpG Adjuvant in Allergen-Specific Immunotherapy: Finding the Sweet Spot for the Induction of Immune Tolerance. Front Immunol 2021; 12:590054. [PMID: 33708195 PMCID: PMC7940844 DOI: 10.3389/fimmu.2021.590054] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/04/2021] [Indexed: 01/16/2023] Open
Abstract
Prevalence and incidence of IgE-mediated allergic diseases have increased over the past years in developed and developing countries. Allergen-specific immunotherapy (AIT) is currently the only curative treatment available for allergic diseases that has long-term efficacy. Although AIT has been proven successful as an immunomodulatory therapy since its beginnings, it still faces several unmet needs and challenges today. For instance, some patients can experience severe side effects, others are non-responders, and prolonged treatment schedules can lead to lack of patient adherence and therapy discontinuation. A common strategy to improve AIT relies on the use of adjuvants and immune modulators to boost its effects and improve its safety. Among the adjuvants tested for their clinical efficacy, CpG oligodeoxynucleotide (CpG-ODN) was investigated with limited success and without reaching phase III trials for clinical allergy treatment. However, recently discovered immune tolerance-promoting properties of CpG-ODN place this adjuvant again in a prominent position as an immune modulator for the treatment of allergic diseases. Indeed, it has been shown that the CpG-ODN dose and concentration are crucial in promoting immune regulation through the recruitment of pDCs. While low doses induce an inflammatory response, high doses of CpG-ODN trigger a tolerogenic response that can reverse a pre-established allergic milieu. Consistently, CpG-ODN has also been found to stimulate IL-10 producing B cells, so-called B regulatory cells (Bregs). Accordingly, CpG-ODN has shown its capacity to prevent and revert allergic reactions in several animal models showing its potential as both preventive and active treatment for IgE-mediated allergy. In this review, we describe how CpG-ODN-based therapies for allergic diseases, despite having shown limited success in the past, can still be exploited further as an adjuvant or immune modulator in the context of AIT and deserves additional attention. Here, we discuss the past and current knowledge, which highlights CpG-ODN as a potential adjuvant to be reevaluated for the enhancement of AIT when used in appropriate conditions and formulations.
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Affiliation(s)
- Guillem Montamat
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.,Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Cathy Leonard
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Aurélie Poli
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Ludger Klimek
- Centre for Rhinology and Allergology, Wiesbaden, Germany
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.,Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark
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15
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Galluzzi L, Vacchelli E, Eggermont A, Fridman WH, Galon J, Sautès-Fridman C, Tartour E, Zitvogel L, Kroemer G. Trial Watch: Experimental Toll-like receptor agonists for cancer therapy. Oncoimmunology 2021; 1:699-716. [PMID: 22934262 PMCID: PMC3429574 DOI: 10.4161/onci.20696] [Citation(s) in RCA: 165] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) are prototypic pattern recognition receptors (PRRs) best known for their ability to activate the innate immune system in response to conserved microbial components such as lipopolysaccharide and double-stranded RNA. Accumulating evidence indicates that the function of TLRs is not restricted to the elicitation of innate immune responses against invading pathogens. TLRs have indeed been shown to participate in tissue repair and injury-induced regeneration as well as in adaptive immune responses against cancer. In particular, TLR4 signaling appears to be required for the efficient processing and cross-presentation of cell-associated tumor antigens by dendritic cells, which de facto underlie optimal therapeutic responses to some anticancer drugs. Thus, TLRs constitute prominent therapeutic targets for the activation/intensification of anticancer immune responses. In line with this notion, long-used preparations such as the Coley toxin (a mixture of killed Streptococcus pyogenes and Serratia marcescens bacteria) and the bacillus Calmette-Guérin (BCG, an attenuated strain of Mycobacterium bovis originally developed as a vaccine against tuberculosis), both of which have been associated with consistent anticancer responses, potently activate TLR2 and TLR4 signaling. Today, besides BCG, only one TLR agonist is FDA-approved for therapeutic use in cancer patients: imiquimod. In this Trial Watch, we will briefly present the role of TLRs in innate and cognate immunity and discuss the progress of clinical studies evaluating the safety and efficacy of experimental TLR agonists as immunostimulatory agents for oncological indications.
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Affiliation(s)
- Lorenzo Galluzzi
- Université Paris Descartes/Paris V; Sorbonne Paris Cité; Paris, France ; Institut Gustave Roussy; Villejuif, France
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16
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Haselager MV, Kater AP, Eldering E. Proliferative Signals in Chronic Lymphocytic Leukemia; What Are We Missing? Front Oncol 2020; 10:592205. [PMID: 33134182 PMCID: PMC7578574 DOI: 10.3389/fonc.2020.592205] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/18/2020] [Indexed: 12/23/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) cells cycle between lymphoid tissue sites where they actively proliferate, and the peripheral blood (PB) where they become quiescent. Strong evidence exists for a crucial role of B cell receptor (BCR) triggering, either by (self-)antigen or by receptor auto-engagement in the lymph node (LN) to drive CLL proliferation and provide adhesion. The clinical success of Bruton's tyrosine kinase (BTK) inhibitors is widely accepted to be based on blockade of the BCR signal. Additional signals in the LN that support CLL survival derive from surrounding cells, such as CD40L-presenting T helper cells, myeloid and stromal cells. It is not quite clear if and to what extent these non-BCR signals contribute to proliferation in situ. In vitro BCR triggering, in contrast, leads to low-level activation and does not result in cell division. Various combinations of non-BCR signals delivered via co-stimulatory receptors, Toll-like receptors (TLRs), and/or soluble cytokines are applied, leading to comparatively modest and short-lived CLL proliferation in vitro. Thus, an unresolved gap exists between the condition in the patient as we now understand it and applicable knowledge that can be harnessed in the laboratory for future therapeutic applications. Even in this era of targeted drugs, CLL remains largely incurable with frequent relapses and emergence of resistance. Therefore, we require better insight into all aspects of CLL growth and potential rewiring of signaling pathways. We aim here to provide an overview of in vivo versus in vitro signals involved in CLL proliferation, point out areas of missing knowledge and suggest future directions for research.
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Affiliation(s)
- Marco V. Haselager
- Department of Experimental Immunology, Academic University Medical Center, location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Lymphoma and Myeloma Center Amsterdam, LYMMCARE, Amsterdam, Netherlands
- Cancer Center Amsterdam, LYMMCARE, Amsterdam, Netherlands
- Amsterdam Infection & Immunity Institute, Amsterdam, Netherlands
| | - Arnon P. Kater
- Cancer Center Amsterdam, LYMMCARE, Amsterdam, Netherlands
- Amsterdam Infection & Immunity Institute, Amsterdam, Netherlands
- Department of Hematology, Academic University Medical Center, location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Eric Eldering
- Department of Experimental Immunology, Academic University Medical Center, location Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Lymphoma and Myeloma Center Amsterdam, LYMMCARE, Amsterdam, Netherlands
- Cancer Center Amsterdam, LYMMCARE, Amsterdam, Netherlands
- Amsterdam Infection & Immunity Institute, Amsterdam, Netherlands
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17
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Bai L, Li W, Zheng W, Xu D, Chen N, Cui J. Promising targets based on pattern recognition receptors for cancer immunotherapy. Pharmacol Res 2020; 159:105017. [DOI: 10.1016/j.phrs.2020.105017] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023]
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18
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Espinosa-Sánchez A, Suárez-Martínez E, Sánchez-Díaz L, Carnero A. Therapeutic Targeting of Signaling Pathways Related to Cancer Stemness. Front Oncol 2020; 10:1533. [PMID: 32984007 PMCID: PMC7479251 DOI: 10.3389/fonc.2020.01533] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/16/2020] [Indexed: 12/11/2022] Open
Abstract
The theory of cancer stem cells (CSCs) proposes that the different cells within a tumor, as well as metastasis deriving from it, are originated from a single subpopulation of cells with self-renewal and differentiation capacities. These cancer stem cells are supposed to be critical for tumor expansion and metastasis, tumor relapse and resistance to conventional therapies, such as chemo- and radiotherapy. The acquisition of these abilities has been attributed to the activation of alternative pathways, for instance, WNT, NOTCH, SHH, PI3K, Hippo, or NF-κB pathways, that regulate detoxification mechanisms; increase the metabolic rate; induce resistance to apoptotic, autophagic, and senescence pathways; promote the overexpression of drug transporter proteins; and activate specific stem cell transcription factors. The elimination of CSCs is an important goal in cancer therapeutic approaches because it could decrease relapses and metastatic dissemination, which are main causes of mortality in oncology patients. In this work, we discuss the role of these signaling pathways in CSCs along with their therapeutic potential.
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Affiliation(s)
- Asunción Espinosa-Sánchez
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
- CIBER de Cancer, Madrid, Spain
| | - Elisa Suárez-Martínez
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
- CIBER de Cancer, Madrid, Spain
| | - Laura Sánchez-Díaz
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
- CIBER de Cancer, Madrid, Spain
| | - Amancio Carnero
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones Científicas, Seville, Spain
- CIBER de Cancer, Madrid, Spain
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19
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Luo Y, Dong Y, Liang S, Yuan L, Men H, Zhang S, Tian S, Fu X, Dong B, Meng M. CpG Oligodeoxynucleotide Promotes Apoptosis of Human Bladder Cancer T24 Cells Via Inhibition of the Antiapoptotic Factors. Technol Cancer Res Treat 2020; 18:1533033819873636. [PMID: 31547786 PMCID: PMC6759714 DOI: 10.1177/1533033819873636] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective: Unmethylated cytosine-phosphorothioate-guanine oligodeoxynucleotide, a synthetic oligodeoxynucleotide, has been used as an adjuvant in clinic and in the antitumor activity. However, the antitumor mechanism of cytosine-phosphorothioate-guanine oligodeoxynucleotide against human bladder cancer is unknown. The purpose of this study is to evaluate the cytotoxicity and molecular mechanism of anticancer effect of cytosine-phosphorothioate-guanine oligodeoxynucleotide on T24 cells (a human bladder cancer cell line). Methods: The cytotoxic activity of cytosine-phosphorothioate-guanine oligodeoxynucleotide was examined by cell viability assay in the presence and absence of 5-fluorouracil, respectively. Apoptosis and cell-cycle phase distribution were detected by flow cytometry analysis. To investigate the molecular mechanisms of cytosine-phosphorothioate-guanine oligodeoxynucleotide cytotoxicity, the expression of antiapoptotic factors (B-cell lymphoma-2 and Survivin, β-actin as control) in RNA, and protein level was assayed by quantitative real-time polymerase chain reaction and automated capillary Western blot. Results: The inhibition ratio of T24 cells treated with both cytosine-phosphorothioate-guanine oligodeoxynucleotide and 5-fluorouracil was higher than those treated with either cytosine-phosphorothioate-guanine oligodeoxynucleotide or 5-fluorouracil alone. In the combination group (cytosine-phosphorothioate-guanine oligodeoxynucleotide and 5-fluorouracil), the apoptosis rate was significantly increased, and more cells were arrested at “S” and “G2/M” phases compared to those in cytosine-phosphorothioate-guanine oligodeoxynucleotide or 5-fluorouracil alone. Furthermore, the expression of antiapoptotic factors was decreased by cytosine-phosphorothioate-guanine oligodeoxynucleotide alone or combined with 5-fluorouracil. Conclusion: Cytosine-phosphorothioate-guanine oligodeoxynucleotide promoted apoptosis and enhanced the chemosensitivity of 5-fluorouracil in T24 cells. Cytosine-phosphorothioate-guanine oligodeoxynucleotide downregulated the expression of antiapoptotic factors and inhibited cell-cycle phase by arresting more cells at “S” and “G2/M” phases. This study indicated the potential ability of cytosine-phosphorothioate-guanine oligodeoxynucleotide as a candidate drug for human bladder cancer.
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Affiliation(s)
- Yang Luo
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Yuhang Dong
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Shengran Liang
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Lihong Yuan
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | | | | | - Sujuan Tian
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xiaoyi Fu
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Bin Dong
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Minjie Meng
- Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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20
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Dampmann M, Görgens A, Möllmann M, Murke F, Dührsen U, Giebel B, Dürig J. CpG stimulation of chronic lymphocytic leukemia cells induces a polarized cell shape and promotes migration in vitro and in vivo. PLoS One 2020; 15:e0228674. [PMID: 32040489 PMCID: PMC7010256 DOI: 10.1371/journal.pone.0228674] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/20/2020] [Indexed: 11/22/2022] Open
Abstract
In order to accomplish their physiological functions leukocytes have the capability to migrate. As a prerequisite they need to adopt a polarized cell shape, forming a leading edge at the front and a uropod at rear pole. In this study we explored the capability of chronic lymphocytic leukaemia (CLL) cells to adopt this leukocyte-specific migration phenotype. Furthermore, we studied the impact of the Toll-like receptor 9 (TLR9) agonists CpGs type A, B and C and the antagonist oligodesoxynucleotide (ODN) INH-18 on the cell polarization and migration process of primary human CLL cells. Upon cultivation, a portion of purified CLL cells adopted polarized cell shapes spontaneously (range 10–38%). Stimulation with CpG ODNs type B (ODN 2006) and CpGs type C (ODN 2395) significantly increased the frequency of morphologically polarized CLL cells, while ODN INH-18 was hardly able to act antagonistically. Like in human hematopoietic stem and progenitor cells, in morphologically polarized CLL cells CXCR4 was redistributed to the leading edge and CD50 to the uropod. Coupled to the increased frequencies of morphologically polarized cells, CpGs type B and C stimulated CLL cells showed higher migration activities in vitro and following intravenous injection higher homing frequencies to the bone marrow of immunocompromised NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ (NSG) mice. Thus, presumably independent of TLR-9 signaling, CpGs type B and C promote the cellular polarization process of CLL cells and their ability to migrate in vitro and in vivo.
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Affiliation(s)
- Maria Dampmann
- Department of Hematology, University Hospital, University of Duisburg-Essen, Essen, Germany
| | - André Görgens
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Michael Möllmann
- Department of Hematology, University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Florian Murke
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Ulrich Dührsen
- Department of Hematology, University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- * E-mail: (JD); (BG)
| | - Jan Dürig
- Department of Hematology, University Hospital, University of Duisburg-Essen, Essen, Germany
- Department of Internal Medicine, St. Josef Hospital, Essen, Germany
- * E-mail: (JD); (BG)
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21
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Vanpouille-Box C, Hoffmann JA, Galluzzi L. Pharmacological modulation of nucleic acid sensors - therapeutic potential and persisting obstacles. Nat Rev Drug Discov 2019; 18:845-867. [PMID: 31554927 DOI: 10.1038/s41573-019-0043-2] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2019] [Indexed: 02/08/2023]
Abstract
Nucleic acid sensors, primarily TLR and RLR family members, as well as cGAS-STING signalling, play a critical role in the preservation of cellular and organismal homeostasis. Accordingly, deregulated nucleic acid sensing contributes to the origin of a diverse range of disorders, including infectious diseases, as well as cardiovascular, autoimmune and neoplastic conditions. Accumulating evidence indicates that normalizing aberrant nucleic acid sensing can mediate robust therapeutic effects. However, targeting nucleic acid sensors with pharmacological agents, such as STING agonists, presents multiple obstacles, including drug-, target-, disease- and host-related issues. Here, we discuss preclinical and clinical data supporting the potential of this therapeutic paradigm and highlight key limitations and possible strategies to overcome them.
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Affiliation(s)
- Claire Vanpouille-Box
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.,Sandra and Edward Meyer Cancer Center, New York, NY, USA
| | - Jules A Hoffmann
- University of Strasbourg Institute for Advanced Studies, Strasbourg, France.,CNRS UPR 9022, Institute for Molecular and Cellular Biology, Strasbourg, France.,Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA. .,Sandra and Edward Meyer Cancer Center, New York, NY, USA. .,Department of Dermatology, Yale School of Medicine, New Haven, CT, USA. .,Université Paris Descartes, Paris, France.
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22
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Braunstein MJ, Kucharczyk J, Adams S. Targeting Toll-Like Receptors for Cancer Therapy. Target Oncol 2019; 13:583-598. [PMID: 30229471 DOI: 10.1007/s11523-018-0589-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The immune system encompasses a broad array of defense mechanisms against foreign threats, including invading pathogens and transformed neoplastic cells. Toll-like receptors (TLRs) are critically involved in innate immunity, serving as pattern recognition receptors whose stimulation leads to additional innate and adaptive immune responses. Malignant cells exploit the natural immunomodulatory functions of TLRs, expressed mainly by infiltrating immune cells but also aberrantly by tumor cells, to foster their survival, invasion, and evasion of anti-tumor immune responses. An extensive body of research has demonstrated context-specific roles for TLR activation in different malignancies, promoting disease progression in certain instances while limiting cancer growth in others. Despite these conflicting roles, TLR agonists have established therapeutic benefits as anti-cancer agents that activate immune cells in the tumor microenvironment and facilitate the expression of cytokines that allow for infiltration of anti-tumor lymphocytes and the suppression of oncogenic signaling pathways. This review focuses on the clinical application of TLR agonists for cancer treatment. We also highlight agents that are undergoing development in clinical trials, including investigations of TLR agonists in combination with other immunotherapies.
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Affiliation(s)
- Marc J Braunstein
- Department of Medicine, NYU Winthrop Hospital, 120 Mineola Blvd. Suite 500, Mineola, 11501, NY, USA
| | - John Kucharczyk
- Department of Medicine, NYU Winthrop Hospital, 120 Mineola Blvd. Suite 500, Mineola, 11501, NY, USA
| | - Sylvia Adams
- Department of Medicine, NYU Langone Medical Center, Laura and Isaac Perlmutter Cancer Center, 160 East 34th Street, 4th Floor, New York, 10016, NY, USA.
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23
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Da Silva DM, Skeate JG, Chavez-Juan E, Lühen KP, Wu JM, Wu CM, Kast WM, Hwang K. Therapeutic efficacy of a human papillomavirus type 16 E7 bacterial exotoxin fusion protein adjuvanted with CpG or GPI-0100 in a preclinical mouse model for HPV-associated disease. Vaccine 2019; 37:2915-2924. [PMID: 31010714 DOI: 10.1016/j.vaccine.2019.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 12/18/2022]
Abstract
Persistent human papillomavirus (HPV) infection is causally linked to the development of several human cancers, including cervical, vulvar, vaginal, anal, penile, and oropharyngeal cancers. To address the need for a therapeutic vaccine against HPV-associated diseases, here we test and compare the immunogenicity and therapeutic efficacy of a bacterial exotoxin fusion protein covalently linked to the HPV16 E7 oncoprotein adjuvanted with CpG or GPI-0100 in the C3.43 preclinical HPV16-transformed tumor model. We show that TVGV-1 protein vaccine adjuvanted with either CpG or GPI-0100 adjuvant induces a high frequency of E7-specific CD8+ T cells, and both adjuvants are able to assist the immune response in inducing polyfunctional cytokine-secreting lytic T cells that show therapeutic efficacy against well-established C3.43 tumors. CpG-adjuvanted TVGV-1 resulted in higher frequencies of IFNγ secreting and degranulating E7-specific T cells compared to GPI-0100-adjuvanted TVGV-1, resulting in marginally increased in vivo efficacy. Despite minor differences in immune response outcomes, we consider both CpG ODN and GPI-0100 to be promising vaccine adjuvants to increase the immunogenicity and therapeutic efficacy of the TVGV-1 protein for HPV16-driven cancers.
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Affiliation(s)
- Diane M Da Silva
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA 90033, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA.
| | - Joseph G Skeate
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - Elena Chavez-Juan
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA
| | - Kim P Lühen
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA
| | - Jiun-Ming Wu
- TheVax Genetics Vaccine Co., Ltd, Zhubei City, Hsinchu County 302, Taiwan, ROC
| | - Chia-Mao Wu
- TheVax Genetics Vaccine Co., Ltd, Zhubei City, Hsinchu County 302, Taiwan, ROC
| | - W Martin Kast
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA 90033, USA; Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA; Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA 90033, USA
| | - KinKai Hwang
- TheVax Genetics Vaccine Co., Ltd, Irvine, CA 92618, USA
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24
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Suek N, Campesato LF, Merghoub T, Khalil DN. Targeted APC Activation in Cancer Immunotherapy to Enhance the Abscopal Effect. Front Immunol 2019; 10:604. [PMID: 31001249 PMCID: PMC6454083 DOI: 10.3389/fimmu.2019.00604] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 03/07/2019] [Indexed: 12/31/2022] Open
Abstract
In oncology, the “abscopal effect” refers to the therapeutic effect on a distant tumor resulting from the treatment of local tumor (e. g., ablation, injection, or radiation). Typically associated with radiation, the abscopal effect is thought to be mediated by a systemic antitumor immune response that is induced by two concurrent changes at the treated tumor: (1) the release of tumor antigens and (2) the exposure of damage-associated molecular patterns. Therapies that produce these changes are associated with immunogenic cell death (ICD). Some interventions have been shown to cause an abscopal effect without inducing the release of tumor antigens, suggesting that release of tumor antigens at baseline plays a significant role in mediating the abscopal effect. With tumor antigens already present, therapies that target activation of APCs alone may be sufficient to enhance the abscopal effect. Here, we discuss two therapies targeted at APC activation, TLR9 and CD40 agonists, and their use in the clinic to enhance the abscopal effect.
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Affiliation(s)
- Nathan Suek
- Swim Across America and Ludwig Collaborative Laboratory, Immunology Program, Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Luis Felipe Campesato
- Swim Across America and Ludwig Collaborative Laboratory, Immunology Program, Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Taha Merghoub
- Swim Across America and Ludwig Collaborative Laboratory, Immunology Program, Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, United States.,Department of Medicine, Weill Cornell Medical College, New York, NY, United States
| | - Danny N Khalil
- Swim Across America and Ludwig Collaborative Laboratory, Immunology Program, Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, United States.,Department of Medicine, Weill Cornell Medical College, New York, NY, United States
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25
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Kim H, Griffith TS, Panyam J. Poly(d,l-lactide-co-glycolide) Nanoparticles as Delivery Platforms for TLR7/8 Agonist-Based Cancer Vaccine. J Pharmacol Exp Ther 2019; 370:715-724. [PMID: 30610006 DOI: 10.1124/jpet.118.254953] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 01/03/2019] [Indexed: 12/28/2022] Open
Abstract
Targeted drug delivery can significantly influence the efficacy of a drug. In the past decades, diverse drug-delivery technologies, including nano- and microparticles, co-crystals, and microneedles have been developed to maximize therapeutic efficacy and minimize undesired side effects of therapeutics. Nanoparticles-submicron-sized drug carriers-have been actively investigated for the delivery of antibiotics, nucleic acids, peptide/proteins, and chemotherapeutics. Recently, nanoparticles have gained attention as a vaccine delivery platform for tumor-associated antigens (TAAs) and/or vaccine adjuvants. Agonists of imidazoquinoline-based Toll-like receptor (TLR) 7/8 are potent cytokine inducers that are used as cancer vaccine adjuvants to elicit robust T-cell response by activating dendritic cells (DCs). Despite their in vitro potency, the translation of TLR7 agonists as cancer vaccine adjuvants in the clinic has been limited by their poor retention at the injection site. Therefore, a formulation that could improve the availability of TLR7/8 agonists to DCs via conventional vaccine administration routes (subcutaneous, intramuscular) can broaden the application of TLR7/8 agonists for cancer immunotherapy. Polymeric nanoparticles fabricated with poly(d,l-lactide-co-glycolide) (PLGA) can be an efficient TLR7/8 agonist delivery platform. PLGA is a biocompatible polymer, and nanoparticles prepared from this polymer are stable in saline and are small enough to be administered by subcutaneous or intramuscular injections. Furthermore, nanoparticulate TLR7/8 delivery can enhance DC uptake and facilitate lymphatic drainage, both of which can enhance the adjuvanticity of TLR7/8 agonists compared with soluble forms. In this review, we discuss the use of PLGA nanoparticles with TLR7/8 agonists for improving cancer immunotherapy.
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Affiliation(s)
- Hyunjoon Kim
- Departments of Pharmaceutics (H.K., J.P.) and Urology (T.S.G.), Center for Immunology (T.S.G.), Microbiology, Immunology, and Cancer Biology Graduate Program (T.S.G.), and Masonic Cancer Center (T.S.G., J.P.), University of Minnesota, Minneapolis, Minnesota
| | - Thomas S Griffith
- Departments of Pharmaceutics (H.K., J.P.) and Urology (T.S.G.), Center for Immunology (T.S.G.), Microbiology, Immunology, and Cancer Biology Graduate Program (T.S.G.), and Masonic Cancer Center (T.S.G., J.P.), University of Minnesota, Minneapolis, Minnesota
| | - Jayanth Panyam
- Departments of Pharmaceutics (H.K., J.P.) and Urology (T.S.G.), Center for Immunology (T.S.G.), Microbiology, Immunology, and Cancer Biology Graduate Program (T.S.G.), and Masonic Cancer Center (T.S.G., J.P.), University of Minnesota, Minneapolis, Minnesota
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26
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Frank MJ, Reagan PM, Bartlett NL, Gordon LI, Friedberg JW, Czerwinski DK, Long SR, Hoppe RT, Janssen R, Candia AF, Coffman RL, Levy R. In Situ Vaccination with a TLR9 Agonist and Local Low-Dose Radiation Induces Systemic Responses in Untreated Indolent Lymphoma. Cancer Discov 2018; 8:1258-1269. [PMID: 30154192 PMCID: PMC6171524 DOI: 10.1158/2159-8290.cd-18-0743] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/13/2018] [Accepted: 08/09/2018] [Indexed: 11/16/2022]
Abstract
This multicenter phase I/II clinical trial evaluated intratumoral SD-101, a TLR9 agonist, and low-dose radiation in patients with untreated indolent lymphoma. Twenty-nine enrolled patients received 4 Gy of radiation followed by 5 weekly intratumoral injections of SD-101 at a single tumor site. No treatment-related grade 4 or serious adverse events occurred. Nearly all patients had tumor reduction at their treated site. More importantly, 24 patients had tumor reduction at their nontreated sites, with 5 patients achieving a partial response and one achieving a complete response. Treatment-related increases of CD8+ and CD4+ effector T cells and decreases of T follicular helper and T regulatory cells (Treg) were observed in the tumor microenvironment. Low pretreatment levels of CD4+ Tregs, proliferating CD8+ T cells, and Granzyme B+ CD8+ T cells were associated with favorable outcomes. Intratumoral SD-101 in combination with low-dose radiation is well tolerated and results in regression of both treated and untreated sites of disease.Significance: In situ vaccination with the TLR9 agonist SD-101, along with low-dose radiation, was safe and induced systemic responses in patients with indolent lymphoma. Low levels of CD4+ Tregs, proliferating CD8+ T cells, and Granzyme B+ CD8+ T cells in the tumor microenvironment predicted favorable response to treatment. Cancer Discov; 8(10); 1258-69. ©2018 AACR. This article is highlighted in the In This Issue feature, p. 1195.
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Affiliation(s)
- Matthew J Frank
- Stanford University Hospital and Clinics, Division of Oncology, Stanford, California
| | | | - Nancy L Bartlett
- Washington University School of Medicine, Siteman Cancer Center, St. Louis, Missouri
| | - Leo I Gordon
- Feinberg School of Medicine, Northwestern University and the Robert H. Lurie Comprehensive Cancer Center, Chicago, Illinois
| | | | - Debra K Czerwinski
- Stanford University Hospital and Clinics, Division of Oncology, Stanford, California
| | - Steven R Long
- Stanford University Hospital and Clinics, Division of Oncology, Stanford, California
| | - Richard T Hoppe
- Stanford University Hospital and Clinics, Department of Radiation Oncology, Stanford, California
| | | | | | | | - Ronald Levy
- Stanford University Hospital and Clinics, Division of Oncology, Stanford, California.
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Abstract
The promising results of clinical trials using immune checkpoint inhibitors revived interests in cancer immunotherapy. However, it also became apparent that efficacy of immune checkpoint blockade can benefit from combining it with immunostimulatory strategies. Here, we review prior and re-emerging approaches using Toll-like Receptor 9 (TLR9) agonists, CpG oligodeoxynucleotides (ODNs), focused on the generation of antitumor immune responses in cancer patients. While numerous early clinical trials using TLR9 ligands in monotherapies provided evidence of CpG ODNs tolerability and safety, they failed to demonstrate sufficient antitumor efficacy. Recent studies unraveled multiple levels of negative regulation of immunostimulatory TLR9 signaling in immune cells by the tumor microenvironment that can stifle immune activity in cancer patients. Therefore, CpG ODNs-based strategies can greatly benefit from combination with strategies targeting immune checkpoint regulation. The most recent clinical trials of CpG ODNs together with immune checkpoint inhibitors have a chance to generate novel, more effective and safer cancer immunotherapies.
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28
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Soldevilla MM, Pastor F. Decoy-Based, Targeted Inhibition of STAT3: A New Step forward for B Cell Lymphoma Immunotherapy. Mol Ther 2018; 26:675-677. [PMID: 29475733 DOI: 10.1016/j.ymthe.2018.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Mario M Soldevilla
- Molecular Therapeutics Program, Center for Applied Medical Research, CIMA, University of Navarra, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain
| | - Fernando Pastor
- Molecular Therapeutics Program, Center for Applied Medical Research, CIMA, University of Navarra, Pamplona, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Pamplona, Spain.
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29
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Moreno Ayala MA, Gottardo MF, Gori MS, Nicola Candia AJ, Caruso C, De Laurentiis A, Imsen M, Klein S, Bal de Kier Joffé E, Salamone G, Castro MG, Seilicovich A, Candolfi M. Dual activation of Toll-like receptors 7 and 9 impairs the efficacy of antitumor vaccines in murine models of metastatic breast cancer. J Cancer Res Clin Oncol 2017; 143:1713-1732. [PMID: 28432455 DOI: 10.1007/s00432-017-2421-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 04/08/2017] [Indexed: 01/06/2023]
Abstract
PURPOSE Since combination of Toll-like receptor (TLR) ligands could boost antitumor immunity, we evaluated the efficacy of dendritic cell (DC) vaccines upon dual activation of TLR9 and TLR7 in breast cancer models. METHODS DCs were generated from mouse bone marrow or peripheral blood from healthy human donors and stimulated with CpG1826 (mouse TLR9 agonist), CpG2006 or IMT504 (human TLR9 agonists) and R848 (TLR7 agonist). Efficacy of antitumor vaccines was evaluated in BALB/c mice bearing metastatic mammary adenocarcinomas. RESULTS CpG-DCs improved the survival of tumor-bearing mice, reduced the development of lung metastases and generated immunological memory. However, dual activation of TLRs impaired the efficacy of DC vaccines. In vitro, we found that R848 inhibited CpG-mediated maturation of murine DCs. A positive feedback loop in TLR9 mRNA expression was observed upon CpG stimulation that was inhibited in the presence of R848. Impaired activation of NF-κB was detected when TLR9 and TLR7 were simultaneously activated. Blockade of nitric oxide synthase (NOS) and indoleamine-pyrrole-2,3-dioxygenase (IDO) improved the activation of CpG-DCs. When we evaluated the effect of combined activation of TLR9 and TLR7 in human DCs, we found that R848 induced robust DC activation that was inhibited by TLR9 agonists. CONCLUSIONS These observations provide insight in the biology of TLR9 and TLR7 crosstalk and suggest caution in the selection of agonists for multiple TLR stimulation. Blockade of NOS and IDO could improve the maturation of antitumor DC vaccines. R848 could prove a useful adjuvant for DC vaccines in human patients.
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Affiliation(s)
- Mariela A Moreno Ayala
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - María Florencia Gottardo
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Soledad Gori
- Instituto de Medicina Experimental (IMEX) CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Alejandro Javier Nicola Candia
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Carla Caruso
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Andrea De Laurentiis
- Facultad de Medicina, Centro de Estudios Farmacológicos y Botánicos (CEFYBO-CONICET/UBA), Universidad de Buenos Aires, Buenos Aires, Argentina.,Cátedra de Fisiología, Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mercedes Imsen
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Slobodanka Klein
- Área Investigación, Instituto de Oncología "Ángel H. Roffo", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Elisa Bal de Kier Joffé
- Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.,Área Investigación, Instituto de Oncología "Ángel H. Roffo", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Gabriela Salamone
- Instituto de Medicina Experimental (IMEX) CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina.,Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan School of Medicine, Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, University of Michigan School of Medicine, Ann Arbor, MI, USA
| | - Adriana Seilicovich
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marianela Candolfi
- Instituto de Investigaciones Biomédicas (INBIOMED-CONICET/UBA), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.
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Frankel AE, Flaherty KT, Weiner GJ, Chen R, Azad NS, Pishvaian MJ, Thompson JA, Taylor MH, Mahadevan D, Lockhart AC, Vaishampayan UN, Berlin JD, Smith DC, Sarantopoulos J, Riese M, Saleh MN, Ahn C, Frenkel EP. Academic Cancer Center Phase I Program Development. Oncologist 2017; 22:369-374. [PMID: 28314841 PMCID: PMC5388388 DOI: 10.1634/theoncologist.2016-0409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 01/09/2017] [Indexed: 11/23/2022] Open
Abstract
This commentary assesses the factors necessary for the effectiveness of academic phase I cancer programs. The metrics presented here may be useful as a rubric for new and established programs. Multiple factors critical to the effectiveness of academic phase I cancer programs were assessed among 16 academic centers in the U.S. Successful cancer centers were defined as having broad phase I and I/II clinical trial portfolios, multiple investigator‐initiated studies, and correlative science. The most significant elements were institutional philanthropic support, experienced clinical research managers, robust institutional basic research, institutional administrative efforts to reduce bureaucratic regulatory delays, phase I navigators to inform patients and physicians of new studies, and a large cancer center patient base. New programs may benefit from a separate stand‐alone operation, but mature phase I programs work well when many of the activities are transferred to disease‐oriented teams. The metrics may be useful as a rubric for new and established academic phase I programs.
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Affiliation(s)
- Arthur E Frankel
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - George J Weiner
- Holden Comprehensive Cancer Center at the University of Iowa, Iowa City, Iowa, USA
| | - Robert Chen
- City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Nilofer S Azad
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, Maryland, USA
| | - Michael J Pishvaian
- Georgetown University Medical Center, Lombardi Cancer Center, Washington DC, USA
| | - John A Thompson
- Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, Washington, USA
| | | | | | - A Craig Lockhart
- Alvin J. Siteman Cancer Center at the Washington University School of Medicine, St. Louis, Missouri, USA
| | | | - Jordan D Berlin
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | - John Sarantopoulos
- Institute for Drug Development at the Cancer Therapy and Research Center of the University of Texas Health Science Center, San Antonio, Texas, USA
| | - Matthew Riese
- Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Mansoor N Saleh
- Comprehensive Cancer Center at the University of Alabama, Birmingham, Alabama, USA
| | - Chul Ahn
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Eugene P Frenkel
- University of Texas Southwestern Medical Center, Dallas, Texas, USA
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31
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Heterogeneity of Toll-like receptor 9 signaling in B cell malignancies and its potential therapeutic application. J Transl Med 2017; 15:51. [PMID: 28241765 PMCID: PMC5329966 DOI: 10.1186/s12967-017-1152-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 02/17/2017] [Indexed: 12/11/2022] Open
Abstract
Toll-like receptor 9 (TLR9) is expressed in a variety of B-cell malignancies and works as a bridge between innate and adaptive immunity. CpG oligodeoxynucleotides (CpG ODNs), TLR9 agonists, are able to induce anticancer immune responses and exert direct effects against cancer cells, serving as cancer therapeutic agents. Therefore, TLR9 might be a potential therapeutic target for drug development. However, several new evidences have revealed that direct effects of TLR9 agonists on B-cell malignancies is controversial. For example, CpG ODNs can induce apoptosis in certain type of chronic lymphocytic leukemia and lymphoma cells, while induce proliferation in multiple myeloma and other types of lymphoma cells. In this review, we summarize current understanding of the heterogeneity in responses of normal and malignant B cells to TLR9 agonists, due to differences in TLR9 expression levels, genetic alterations (such as MyD88 mutation), and signaling pathway activation. Especially, the downstream molecules of NF-κB signaling pathway play an important role in the heterogeneous response. In order to provide possibilities for therapeutic manipulation of TLR9 agonists in the treatment of these disorders, the preclinical and clinical advances in using CpG ODNs alone and in combination therapies are also summarized in this review.
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Targeting dendritic cells to accelerate T-cell activation overcomes a bottleneck in tuberculosis vaccine efficacy. Nat Commun 2016; 7:13894. [PMID: 28004802 PMCID: PMC5192216 DOI: 10.1038/ncomms13894] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 11/08/2016] [Indexed: 12/11/2022] Open
Abstract
The development of a tuberculosis (TB) vaccine that induces sterilizing immunity to Mycobacterium tuberculosis infection has been elusive. Absence of sterilizing immunity induced by TB vaccines may be due to delayed activation of mucosal dendritic cells (DCs), and subsequent delay in antigen presentation and activation of vaccine-induced CD4+ T-cell responses. Here we show that pulmonary delivery of activated M. tuberculosis antigen-primed DCs into vaccinated mice, at the time of M. tuberculosis exposure, can overcome the delay in accumulation of vaccine-induced CD4+ T-cell responses. In addition, activating endogenous host CD103+ DCs and the CD40–CD40L pathway can similarly induce rapid accumulation of vaccine-induced lung CD4+ T-cell responses and limit early M. tuberculosis growth. Thus, our study provides proof of concept that targeting mucosal DCs can accelerate vaccine-induced T-cell responses on M. tuberculosis infection, and provide insights to overcome bottlenecks in TB vaccine efficacy. A delay in T cell responses is postulated as a possible explanation for the limited efficacy of vaccines against tuberculosis. Here the authors demonstrate this T-cell block and remove it by activating endogenous dendritic cells or delivering activated dendritic cells to the lungs, enhancing immunity of mice to Mycobacterium tuberculosis.
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Toll-like receptors signaling: A complex network for NF-κB activation in B-cell lymphoid malignancies. Semin Cancer Biol 2016; 39:15-25. [DOI: 10.1016/j.semcancer.2016.07.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/06/2016] [Accepted: 07/07/2016] [Indexed: 11/17/2022]
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35
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Polizzotto MN, Chen G, Tressler RL, Godfrey C. Leveraging Cancer Therapeutics for the HIV Cure Agenda: Current Status and Future Directions. Drugs 2016. [PMID: 26224205 DOI: 10.1007/s40265-015-0426-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Despite effective antiretroviral therapy (ART) and undetectable HIV RNA in the plasma, latent replication-competent HIV persists indefinitely in long-lived cells. Cessation of ART results in rebound of HIV from these persistent reservoirs. While this was thought to be an insurmountable obstacle to viral eradication, recent cases suggest otherwise. To date one patient has been "cured" of HIV and several others have been able to interrupt ART without viral rebound for prolonged periods. These events have sparked renewed interest in developing strategies that will allow eradication of HIV in infected individuals. We review the current knowledge of HIV latency and the viral reservoir, describe the potential utility of emerging cancer therapeutics in HIV cure research with an emphasis on pathways implicated in reservoir persistence, and outline opportunities and challenges in the context of the current clinical trial and regulatory environment.
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Affiliation(s)
- Mark N Polizzotto
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, 5601 Fishers Lane, Bethesda, MD, 20892, USA,
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36
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Ghamlouch H, Darwiche W, Hodroge A, Ouled-Haddou H, Dupont S, Singh AR, Guignant C, Trudel S, Royer B, Gubler B, Marolleau JP. Factors involved in CLL pathogenesis and cell survival are disrupted by differentiation of CLL B-cells into antibody-secreting cells. Oncotarget 2016; 6:18484-503. [PMID: 26050196 PMCID: PMC4621905 DOI: 10.18632/oncotarget.3941] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/28/2015] [Indexed: 11/25/2022] Open
Abstract
Recent research has shown that chronic lymphocytic leukemia (CLL) B-cells display a strong tendency to differentiate into antibody-secreting cells (ASCs) and thus may be amenable to differentiation therapy. However, the effect of this differentiation on factors associated with CLL pathogenesis has not been reported. In the present study, purified CLL B-cells were stimulated to differentiate into ASCs by phorbol myristate acetate or CpG oligodeoxynucleotide, in combination with CD40 ligand and cytokines in a two-step, seven-day culture system. We investigated (i) changes in the immunophenotypic, molecular, functional, morphological features associated with terminal differentiation into ASCs, (ii) the expression of factors involved in CLL pathogenesis, and (iii) the expression of pro- and anti-apoptotic proteins in the differentiated cells. Our results show that differentiated CLL B-cells are able to display the transcriptional program of ASCs. Differentiation leads to depletion of the malignant program and deregulation of the apoptosis/survival balance. Analysis of apoptosis and the cell cycle showed that differentiation is associated with low cell viability and a low rate of cell cycle entry. Our findings shed new light on the potential for differentiation therapy as a part of treatment strategies for CLL.
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Affiliation(s)
- Hussein Ghamlouch
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Immunology, Amiens University Medical Center, Amiens, France.,Department of Clinical Hematology and Cell Therapy, Amiens University Medical Center, Amiens, France
| | - Walaa Darwiche
- PériTox, Périnatalité & Risques Toxiques, UMR-I 01 Unité mixte INERIS, Amiens, France
| | - Ahmed Hodroge
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France
| | | | - Sébastien Dupont
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Clinical Hematology and Cell Therapy, Amiens University Medical Center, Amiens, France
| | | | - Caroline Guignant
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Immunology, Amiens University Medical Center, Amiens, France
| | - Stéphanie Trudel
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Molecular Oncobiology, Amiens University Medical Center, Amiens, France
| | - Bruno Royer
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Clinical Hematology and Cell Therapy, Amiens University Medical Center, Amiens, France
| | - Brigitte Gubler
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Immunology, Amiens University Medical Center, Amiens, France.,Department of Molecular Oncobiology, Amiens University Medical Center, Amiens, France
| | - Jean-Pierre Marolleau
- EA4666, LNPC, Université de Picardie Jules Verne, Amiens, France.,Department of Clinical Hematology and Cell Therapy, Amiens University Medical Center, Amiens, France
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van Meer L, Moerland M, Gallagher J, van Doorn MBA, Prens EP, Cohen AF, Rissmann R, Burggraaf J. Injection site reactions after subcutaneous oligonucleotide therapy. Br J Clin Pharmacol 2016; 82:340-51. [PMID: 27061947 DOI: 10.1111/bcp.12961] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 12/22/2022] Open
Abstract
Oligonucleotides (ONs) are short fragments of nucleic acids, currently being investigated as therapeutic agents. When administered subcutaneously (sc), ONs cause a specific local reaction originating around the injection site, such as erythema, itching, discomfort and pain, including more severe manifestations such as ulceration or necrosis. These injection site reactions (ISRs) are common, but rather poorly described in the literature. With this review, we aim to provide an overview on the extent of the problem of ISRs, based on reported incidence. A structured literature search was performed to identify reported incidence and clinical features of ISRs which yielded 70 manuscripts that contained information regarding ISRs. The data from literature was combined with data on file available at our institution. All sc administered ONs described in the literature lead to the occurrence of ISRs. The percentage of trial subjects that developed ISRs ranged from 22 to 100% depending on ON. The majority of ONs caused ISRs in more than 70% of the trial subjects. The severity of the observed reactions varied between different ONs. Occurrence rate as well as severity of ISRs increases with higher doses. For chemistry and target of the compounds, no clear association regarding ISR incidence or severity was identified. All ONs developed to date are associated with ISRs. Overcoming the problem of ISRs might add greatly to the potential success of sc-administered ONs. Knowledge of these skin reactions and their specific immunostimulatory properties should be increased in order to obtain ONs that are more suitable for long-term use and clinically applicable in a broader patient population.
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Affiliation(s)
| | | | | | | | - Errol P Prens
- Department of Dermatology Erasmus MC, University Medical Center Rotterdam
| | - Adam F Cohen
- Centre for Human Drug Research, Leiden, the Netherlands
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Kim DH, Sohn JH, Park HJ, Lee JH, Park JW, Choi JM. CpG Oligodeoxynucleotide Inhibits Cockroach-Induced Asthma via Induction of IFN-γ⁺ Th1 Cells or Foxp3⁺ Regulatory T Cells in the Lung. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2016; 8:264-75. [PMID: 26922937 PMCID: PMC4773215 DOI: 10.4168/aair.2016.8.3.264] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 08/13/2015] [Accepted: 08/28/2015] [Indexed: 02/04/2023]
Abstract
Purpose CpG oligodeoxynucleotide (CpG-ODN), a TLR9 agonist, activates innate immunity and induces Th1 response. Although the immune modulatory effect of CpG-ODN has been extensively studied, its function in cockroach extract-induced allergic asthma has not been studied. Here, we investigated the inhibitory function of CpG-ODN in cockroach extract-induced asthma in mice with different treatment schemes. Methods Scheme 1: BALB/C mice were intra-nasally co-administered by cockroach extract and CpG-ODN twice a week for 3 weeks; Scheme 2: The mice were intra-nasally pre-treated with CpG-ODN at day 0 and cockroach allergen challenge was performed from day 3 as in scheme 1. Scheme 3: Cockroach allergen challenge was performed as in scheme 1 and CpG-ODN was post-treated at day 21. Then, BAL cell count, flow cytometric analysis of alveolar macrophages, regulatory T cells, and lung tissue histology, Th1 and Th2 cytokines, serum IgE, cockroach specific IgE, IgG1/IgG2a ratio, and airway hyper-responsiveness were evaluated. Results Mice with repeated intra-nasal exposure to CpG-ODN showed a dramatic decrease in eosinophilic inflammation, goblet cell hyperplasia, and airway hyper-responsiveness with reduction of IL-13, IL-5, and serum IgE, cockroach specific IgE and IgG1/IgG2a ratio. This inhibitory function might be related to the up-regulation of IL-10 and CD4+Foxp3+ regulatory T cells in the lung. Interestingly, one-time challenge of CpG-ODN either prior or posterior to cockroach extract exposure could modulate airway inflammation and hyper-responsiveness via increase of Th1 response. Conclusions Collectively, our data suggest that CpG-ODN treatment modulates Th2 inflammation in the lung by induction of regulatory T cells or Th1 response in a cockroach-induced asthma model.
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Affiliation(s)
- Do Hyun Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Korea
| | - Jung Ho Sohn
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Korea.,Division of Allergy and Immunology, Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hong Jai Park
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
| | - Je Min Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Korea.
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39
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Liu R, Luo F, Liu X, Wang L, Yang J, Deng Y, Huang E, Qian J, Lu Z, Jiang X, Zhang D, Chu Y. Biological Response Modifier in Cancer Immunotherapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 909:69-138. [PMID: 27240457 DOI: 10.1007/978-94-017-7555-7_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biological response modifiers (BRMs) emerge as a lay of new compounds or approaches used in improving cancer immunotherapy. Evidences highlight that cytokines, Toll-like receptor (TLR) signaling, and noncoding RNAs are of crucial roles in modulating antitumor immune response and cancer-related chronic inflammation, and BRMs based on them have been explored. In particular, besides some cytokines like IFN-α and IL-2, several Toll-like receptor (TLR) agonists like BCG, MPL, and imiquimod are also licensed to be used in patients with several malignancies nowadays, and the first artificial small noncoding RNA (microRNA) mimic, MXR34, has entered phase I clinical study against liver cancer, implying their potential application in cancer therapy. According to amounts of original data, this chapter will review the regulatory roles of TLR signaling, some noncoding RNAs, and several key cytokines in cancer and cancer-related immune response, as well as the clinical cases in cancer therapy based on them.
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Affiliation(s)
- Ronghua Liu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Feifei Luo
- Biotherapy Research Center, Fudan University, Shanghai, 200032, China.,Department of Digestive Diseases of Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoming Liu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Department of Dermatology, Shenzhen Hospital, Peking University, Shenzhen, Guangdong, 518036, China
| | - Luman Wang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Jiao Yang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Yuting Deng
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Enyu Huang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Jiawen Qian
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Zhou Lu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Xuechao Jiang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Dan Zhang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai, 200032, China
| | - Yiwei Chu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, No.138, Yi Xue Yuan Rd., mail box 226, Shanghai, 200032, People's Republic of China. .,Biotherapy Research Center, Fudan University, Shanghai, 200032, China.
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Gregory CD, Ford CA, Voss JJLP. Microenvironmental Effects of Cell Death in Malignant Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 930:51-88. [PMID: 27558817 DOI: 10.1007/978-3-319-39406-0_3] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Although apoptosis is well recognized as a cell death program with clear anticancer roles, accumulating evidence linking apoptosis with tissue repair and regeneration indicates that its relationship with malignant disease is more complex than previously thought. Here we review how the responses of neighboring cells in the microenvironment of apoptotic tumor cells may contribute to the cell birth/cell death disequilibrium that provides the basis for cancerous tissue emergence and growth. We describe the bioactive properties of apoptotic cells and consider, in particular, how apoptosis of tumor cells can engender a range of responses including pro-oncogenic signals having proliferative, angiogenic, reparatory, and immunosuppressive features. Drawing on the parallels between wound healing, tissue regeneration and cancer, we propose the concept of the "onco-regenerative niche," a cell death-driven generic network of tissue repair and regenerative mechanisms that are hijacked in cancer. Finally, we consider how the responses to cell death in tumors can be targeted to provide more effective and long-lasting therapies.
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Affiliation(s)
- Christopher D Gregory
- MRC Centre for Inflammation Research, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK.
| | - Catriona A Ford
- MRC Centre for Inflammation Research, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Jorine J L P Voss
- MRC Centre for Inflammation Research, University of Edinburgh Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
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41
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Zhang L, Wang W, Wang S. Effect of vaccine administration modality on immunogenicity and efficacy. Expert Rev Vaccines 2015; 14:1509-23. [PMID: 26313239 DOI: 10.1586/14760584.2015.1081067] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The many factors impacting the efficacy of a vaccine can be broadly divided into three categories: features of the vaccine itself, including immunogen design, vaccine type, formulation, adjuvant and dosing; individual variations among vaccine recipients and vaccine administration-related parameters. While much literature exists related to vaccines, and recently systems biology has started to dissect the impact of individual subject variation on vaccine efficacy, few studies have focused on the role of vaccine administration-related parameters on vaccine efficacy. Parenteral and mucosal vaccinations are traditional approaches for licensed vaccines; novel vaccine delivery approaches, including needless injection and adjuvant formulations, are being developed to further improve vaccine safety and efficacy. This review provides a brief summary of vaccine administration-related factors, including vaccination approach, delivery route and method of administration, to gain a better understanding of their potential impact on the safety and immunogenicity of candidate vaccines.
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Affiliation(s)
- Lu Zhang
- a 1 Department of Infectious Diseases, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China.,b 2 China-US Vaccine Research Center, The First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, China
| | - Wei Wang
- c 3 Wang Biologics, LLC, Chesterfield, MO 63017, USA ; Current affiliation: Bayer HealthCare, Berkeley, CA 94710, USA
| | - Shixia Wang
- d 4 Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
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Browning RL, Mo X, Muthusamy N, Byrd JC. CpG oligodeoxynucleotide CpG-685 upregulates functional interleukin-21 receptor on chronic lymphocytic leukemia B cells through an NF-κB mediated pathway. Oncotarget 2015; 6:15931-9. [PMID: 26158860 PMCID: PMC4599247 DOI: 10.18632/oncotarget.3285] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 02/05/2015] [Indexed: 11/25/2022] Open
Abstract
CpG oligodeoxynucleotides (ODNs) upregulate the interleukin-21 receptor (IL21R) and enhance IL-21-mediated cytotoxicity in chronic lymphocytic leukemia (CLL) B cells. We demonstrate that treatment of CLL B cells with the ODN CpG-685 leads to increased IL21R expression, and that this increased expression enhances the effects of IL-21 treatment as evidenced by increased phosphorylation of JAK1, STAT1, and STAT3, as compared to IL-21 treatment without prior CpG stimulation. Induction of IL21R by CpG-685 also enhanced IL-21-mediated cytotoxicity. The mechanism by which CpG ODNs upregulate IL21R has not been elucidated, although IL21R regulation in T cells has been shown to be linked to T cell receptor-induced Sp1 binding to the IL21R promoter. Here, we demonstrate that luciferase reporter constructs containing the Sp1 binding site have increased basal luciferase activity compared to constructs lacking the Sp1 binding site, but fail to increase luciferase activity with CpG-685 stimulation in CLL B cells. By treating CLL cells with an NF-κB inhibitor, we inhibit the CpG ODN-mediated induction of IL21R, thus demonstrating that CpG-685 upregulates IL21R through an NF-κB mediated pathway. These findings suggest an alternative mechanism for induction of IL-21 receptor in CLL B cells and provide a basis for creation of future combination therapies.
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MESH Headings
- Humans
- I-kappa B Kinase/antagonists & inhibitors
- I-kappa B Kinase/metabolism
- Interleukin-21 Receptor alpha Subunit/biosynthesis
- Interleukin-21 Receptor alpha Subunit/genetics
- Interleukin-21 Receptor alpha Subunit/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- NF-kappa B/metabolism
- Oligodeoxyribonucleotides/genetics
- Oligodeoxyribonucleotides/pharmacology
- Sp1 Transcription Factor/metabolism
- Tumor Cells, Cultured
- Up-Regulation
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Affiliation(s)
- Rebekah L. Browning
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Xiaokui Mo
- Center for Biostatistics, The Ohio State University, Columbus, Ohio, United States of America
| | - Natarajan Muthusamy
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - John C. Byrd
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio, United States of America
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Peek EM, Song W, Zhang H, Huang J, Chin AI. Loss of MyD88 leads to more aggressive TRAMP prostate cancer and influences tumor infiltrating lymphocytes. Prostate 2015; 75:463-73. [PMID: 25597486 DOI: 10.1002/pros.22932] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/22/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND The influence of pattern recognition receptor (PRR) signaling in the prostate tumor microenvironment remains unclear. Although there may be a role for PRR agonists as adjuvants to therapy, prior evidence suggests tumor promoting as well as tumor inhibiting mechanisms. The purpose of this study is to examine the role of the key Toll-like receptor (TLR) signaling adaptor protein myeloid differentiation primary response gene 88 (MyD88) in prostate cancer development. METHODS MyD88(-/-) mice in a C57Bl6 background were crossed with transgenic adenocarcinomas of the mouse prostate (TRAMP) mice to create MyD88(-/-) TRAMP(Tg+/-) animals, which were compared to MyD88(+/+) TRAMP(Tg+/-) animals and their non-transgenic counterparts at 30 weeks. Prostates were examined histologically, by immunohistochemistry and immunofluorescence staining, and by qPCR, to characterize tumor-infiltrating immune populations as well as activation of the downstream NF-κB pathway and androgen receptor (AR) expression. Splenocytes were examined for development of distinct immune cell populations. RESULTS Absence of MyD88 led to increased prostatic intraepithelial neoplasm (PIN) and areas of well-differentiated adenocarcinoma in TRAMP transgenic mice. Analysis of infiltrating immune populations revealed an increase in CD11b(+) Gr1(+) myeloid-derived suppressor cells (MDSCs), as evidenced by increased expression of prostatic arginase-1 and iNOS as well as the cytokine IL-10, and a deficiency in NK cells in prostates from MyD88(-/-) TRAMP(Tg+/-) compared to MyD88(+/+) TRAMP(Tg+/-) mice, whereas a decrease in splenocytic NK cell differentiation was observed in MyD88(-/-) mice. Prostate tumors revealed no significant differences in NF-κB or AR expression in MyD88(+/+) TRAMP(Tg+/-) compared to MyD88(-/-) TRAMP(Tg+/-) mice. CONCLUSIONS During prostate cancer development in the TRAMP model, MyD88 may play a role in limiting prostate tumorigenesis by altering tumor-infiltrating immune populations. This suggests that in the context of specific cancers, distinct PRRs and signaling pathways of innate immune signaling may influence the tumor microenvironment and represent a novel therapeutic strategy.
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Open-label phase 1b study of FOLFIRI plus cetuximab plus IMO-2055 in patients with colorectal cancer who have progressed following chemotherapy for advanced or metastatic disease. Cancer Chemother Pharmacol 2015; 75:701-9. [PMID: 25627002 DOI: 10.1007/s00280-015-2682-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/12/2015] [Indexed: 12/21/2022]
Abstract
PURPOSE The immune modulatory oligonucleotide IMO-2055 (EMD 1201081) is a phosphorothioate oligodeoxynucleotide agonist of Toll-like receptor 9. In preclinical studies, IMO-2055 was shown to activate natural killer cells and to support the antitumor activity of monoclonal antibodies. This phase 1b, open-label, 3 + 3 dose-escalation trial was performed to determine the recommended phase 2 dose of IMO-2055 combined with FOLFIRI/cetuximab in patients with previously treated, advanced/metastatic colorectal cancer (NCT00719199). METHODS Patients received 14-day cycles of cetuximab (days 1/8; 400 mg/m(2) day 1 cycle 1, 250 mg/m(2) for subsequent days/cycles), irinotecan (day 1; 180 mg/m(2)), folinic acid (day 1; 400 mg/m(2) racemic or 200 mg/m(2) L-form), 5-fluorouracil (day 1; 400 mg/m(2) intravenous bolus, followed by 2,400 mg/m(2) as 46-h infusion), and escalating IMO-2055 doses (days 1/8; 0.16, 0.32, 0.48 mg/kg). Fifteen patients received IMO-2055, including six, three, and six patients who were treated at the dose levels 0.16, 0.32, and 0.48 mg/kg, respectively. RESULTS One dose-limiting toxicity was observed (grade 3 fatigue; at dose level 0.16 mg/kg). The most common adverse events were injection site reactions, diarrhea, fatigue, hypomagnesemia, and stomatitis. One patient achieved a confirmed partial response; 12 had stable disease, including five with stable disease ≥4.0 months. CONCLUSIONS IMO-2055 combined with FOLFIRI/cetuximab was well tolerated at all dose levels tested. IMO-2055 0.48 mg/kg was considered as the recommended phase 2 dose.
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Heidenreich R, Jasny E, Kowalczyk A, Lutz J, Probst J, Baumhof P, Scheel B, Voss S, Kallen KJ, Fotin-Mleczek M. A novel RNA-based adjuvant combines strong immunostimulatory capacities with a favorable safety profile. Int J Cancer 2015; 137:372-84. [PMID: 25530186 DOI: 10.1002/ijc.29402] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 11/25/2014] [Indexed: 12/29/2022]
Abstract
Protein- and peptide-based tumor vaccines depend on strong adjuvants to induce potent immune responses. Here, we demonstrated that a recently developed novel adjuvant based on a non-coding, long-chain RNA molecule, termed RNAdjuvant(®) , profoundly increased immunogenicity of both antigen formats. RNAdjuvant(®) induced balanced, long-lasting immune responses that resulted in a strong anti-tumor activity. A direct comparison to Poly(I:C) showed superior efficacy of our adjuvant to enhance antigen-specific multifunctional CD8(+) T-cell responses and mediate anti-tumor responses induced by peptide derived from HPV-16 E7 protein in the syngeneic TC-1 tumor, a murine model of human HPV-induced cervical cancer. Moreover, the adjuvant was able to induce functional memory responses that mediated complete tumor remission. Despite its remarkable immunostimulatory activity, our RNA-based adjuvant exhibited an excellent pre-clinical safety profile. It acted only locally at the injection site where it elicited a transient but strong up-regulation of pro-inflammatory and anti-viral cytokines as well as cytoplasmic RNA sensors without systemic cytokine release. This was followed by the activation of immune cells in the draining lymph nodes. Our data indicate that our RNA-based adjuvant is a safe and potent immunostimulator that may profoundly improve the efficacy of a variety of cancer vaccines.
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Affiliation(s)
- Regina Heidenreich
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Edith Jasny
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Aleksandra Kowalczyk
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Johannes Lutz
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Jochen Probst
- IDT Biologika GmbH, Quality Unit Vaccines, Dessau-Roßlau, Germany
| | - Patrick Baumhof
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Birgit Scheel
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Söhnke Voss
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Karl-Josef Kallen
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
| | - Mariola Fotin-Mleczek
- CureVac GmbH, Department of pre-clinical research, Paul-Ehrlich-Str. 15, Tübingen, 72076, Germany
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MGN1703, an immunomodulator and toll-like receptor 9 (TLR-9) agonist: from bench to bedside. Crit Rev Oncol Hematol 2014; 94:31-44. [PMID: 25577571 DOI: 10.1016/j.critrevonc.2014.12.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/06/2014] [Accepted: 12/09/2014] [Indexed: 02/06/2023] Open
Abstract
The adaptive immune system has been the main focus of immunological strategies in oncology with only more recent approaches targeting innate immunity. Endosomal toll-like receptors (TLR-7, TLR-9) activate innate immune responses by signaling damage-associated molecular patterns (DAMP) from decaying tumor cells. This has led to the development of DNA-based TLR-9 agonists, which induce antitumor activity through innate and subsequent adaptive immune responses. Early clinical trials with CpG-ODN as TLR-9 agonists were associated with unfavorable tolerability and narrow clinical efficacy, leading to failure in pivotal trials. dSLIM, the active ingredient of MGN1703, is a DNA-based, radically different molecular alternative to CpG-ODN, which results in genuine antitumor immunomodulation. Preclinical and clinical studies of MGN1703 have confirmed that this TLR-9 agonist has therapeutic potential in a variety of solid tumors, while long-term treatment with high doses was very well tolerated. A pivotal trial of first-line maintenance treatment with MGN1703 in patients with metastatic colorectal cancer is underway.
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Hagn M, Blackwell SE, Beyer T, Ebel V, Fabricius D, Lindner S, Stilgenbauer S, Simmet T, Tam C, Neeson P, Trapani JA, Schrezenmeier H, Weiner GJ, Jahrsdörfer B. B-CLL cells acquire APC- and CTL-like phenotypic characteristics after stimulation with CpG ODN and IL-21. Int Immunol 2014; 26:383-95. [PMID: 24497611 PMCID: PMC4133571 DOI: 10.1093/intimm/dxu001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 01/05/2014] [Indexed: 12/25/2022] Open
Abstract
CpG oligodeoxynucleotides (CpG) and IL-21 are two promising agents for the treatment of B-cell chronic lymphocytic leukemia (B-CLL). Recently, we reported that the combination of CpG and IL-21 (CpG/IL-21) can induce granzyme B (GrB)-dependent apoptosis in B-CLL cells. Here, we demonstrate that treatment of B-CLL cells with CpG and IL-21 results in the development of antigen-presenting cell (APC)-like cells with cytotoxic features. These properties eventually give rise to B-CLL cell apoptosis, independently of their cytogenetic phenotype, whereas normal B-cell survival is not negatively affected by CpG/IL-21. APC- and CTL-typical molecules found to be up-regulated in CpG/IL-21-stimulated B-CLL cells include GrB, perforin, T-bet, monokine-induced by IFN-γ and IFN-γ-inducible protein 10 (IP-10), as well as molecules important for cell adhesion, antigen cross-presentation and costimulation. Also induced are molecules involved in GrB induction, trafficking and processing, whereas the GrB inhibitor Serpin B9 [formerly proteinase inhibitor-9 (PI-9)] is down-modulated by CpG/IL-21. In conclusion, CpG/IL-21-stimulated B-CLL cells acquire features that are reminiscent of killer dendritic cells, and which result in enhanced immunogenicity, cytotoxicity and apoptosis. Our results provide novel insights into the aberrant immune state of B-CLL cells and may establish a basis for the development of an innovative cellular vaccination approach in B-CLL.
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MESH Headings
- Aged
- Aged, 80 and over
- Antigen-Presenting Cells/drug effects
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/pathology
- Apoptosis/drug effects
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- Chemokine CXCL10/genetics
- Chemokine CXCL10/immunology
- Cytotoxicity, Immunologic/drug effects
- Female
- Gene Expression Regulation, Leukemic
- Granzymes/genetics
- Granzymes/immunology
- Humans
- Immunophenotyping
- Interleukins/pharmacology
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Lymphocyte Activation/drug effects
- Male
- Middle Aged
- Oligodeoxyribonucleotides/pharmacology
- Perforin/genetics
- Perforin/immunology
- Primary Cell Culture
- Recombinant Proteins/pharmacology
- Signal Transduction
- T-Box Domain Proteins/genetics
- T-Box Domain Proteins/immunology
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Affiliation(s)
- Magdalena Hagn
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne 3002, Australia
| | - Sue E Blackwell
- Department of Internal Medicine, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA 52242, USA
| | - Thamara Beyer
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and Institute of Transfusion Medicine
| | - Verena Ebel
- Institute of Pharmacology of Natural Products and Clinical Pharmacology
| | | | - Stefanie Lindner
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and Institute of Transfusion Medicine
| | | | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology
| | - Constantine Tam
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne 3002, Australia
| | - Paul Neeson
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne 3002, Australia
| | - Joseph A Trapani
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne 3002, Australia
| | - Hubert Schrezenmeier
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and Institute of Transfusion Medicine
| | - George J Weiner
- Department of Internal Medicine, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA 52242, USA
| | - Bernd Jahrsdörfer
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and Institute of Transfusion Medicine,
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48
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Westwood JA, Potdevin Hunnam TCU, Pegram HJ, Hicks RJ, Darcy PK, Kershaw MH. Routes of delivery for CpG and anti-CD137 for the treatment of orthotopic kidney tumors in mice. PLoS One 2014; 9:e95847. [PMID: 24788789 PMCID: PMC4008493 DOI: 10.1371/journal.pone.0095847] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 04/01/2014] [Indexed: 12/24/2022] Open
Abstract
We have found previously that the tumor cell lines, Renca (a renal cancer) and MC38 (a colon tumor) which had been injected subcutaneously in mice, could be successfully treated with a combination therapy of an oligodeoxynucleotide (CpG1826) (injected intratumorally) and anti-CD137 antibody (injected intraperitoneally). Thus the combination treatment was expected to initiate a “danger” signal via TLR9 on immune cells, and the anti-CD137 was expected to further activate T cells. In the present study, we found that several other tumor types injected subcutaneously could also be successfully treated with this combination therapy. In addition, we wished to determine if the treatment could work as effectively in an orthotopic metastatic model, which is more physiologically relevant to cancer in humans. Renca was selected as we were familiar with injecting this orthotopically into the outer cortex of the kidney in mice, and it spontaneously metastasizes to lung and abdominal sites. We tested various routes of delivery of CpG combined with intraperitoneal delivery of anti-CD137. Orthotopic tumors were injected with CpG intratumorally, using ultrasound-guided delivery on multiple occasions, combined with anti-CD137 intraperitoneally. A reduction in primary tumor size was observed following intratumoral injection of CpG compared to other treatments. We found that there was a statistically significant increase in survival of mice with orthotopic Renca tumor following intratumoral injection of CpG. However, we determined that the most effective route of delivery of CpG was intravenous, which led to further significantly enhanced survival of mice when combined with anti-CD137 intraperitoneally, likely due to inhibition of metastatic disease. Our data supports future development of this combination therapy for cancer.
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Affiliation(s)
- Jennifer A. Westwood
- Division of Cancer Research, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Australia
| | | | - Hollie J. Pegram
- Division of Cancer Research, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Australia
| | - Rodney J. Hicks
- Centre for Cancer Imaging, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Australia
| | - Phillip K. Darcy
- Division of Cancer Research, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Department of Immunology, Monash University, Prahran, Australia
| | - Michael H. Kershaw
- Division of Cancer Research, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Department of Immunology, Monash University, Prahran, Australia
- * E-mail:
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49
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Saulep-Easton D, Vincent FB, Le Page M, Wei A, Ting SB, Croce CM, Tam C, Mackay F. Cytokine-driven loss of plasmacytoid dendritic cell function in chronic lymphocytic leukemia. Leukemia 2014; 28:2005-15. [PMID: 24721775 PMCID: PMC4100939 DOI: 10.1038/leu.2014.105] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 02/10/2014] [Accepted: 03/06/2014] [Indexed: 02/06/2023]
Abstract
Chronic lymphocytic leukemia (CLL) is characterized by the accumulation of CD5+CD19+ B cells in the peripheral blood, and in primary and secondary lymphoid organs. A major complication associated with CLL is severe recurrent infections, which are often fatal. Vulnerability to infection is due to a wide variety of immunological defects, yet the initiating events of immunodeficiency in CLL are unclear. Using CLL patient samples and a mouse model of CLL, we have discovered that plasmacytoid dendritic cells (pDCs), which underpin the activity of effector immune cells critical for anti-viral immunity and anti-tumor responses, are reduced in number and functionally impaired in progressive CLL. As a result, the levels of interferon alpha (IFNα) production, a cytokine critical for immunity, are markedly reduced. Lower pDC numbers with impaired IFNα production was due to the decreased expression of FMS-like tyrosine kinase 3 receptor (Flt3) and Toll-like receptor 9 (TLR9), respectively. Reduced Flt3 expression was reversed using inhibitors of TGF-β and TNF, an effect correlating with a reduction in tumor load. Defects in pDC numbers and function offer a new insight into mechanisms underpinning the profound immunodeficiency affecting CLL patients and provide a potentially novel avenue for restoring immuno-competency in CLL.
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Affiliation(s)
- D Saulep-Easton
- Department of Immunology, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
| | - F B Vincent
- Department of Immunology, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
| | - M Le Page
- Department of Immunology, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
| | - A Wei
- 1] Department of Haematology, The Alfred Hospital, 55 Commercial Road, Melbourne, Victoria, Australia [2] Australian Centre for Blood Diseases, Division of Blood Cancers, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
| | - S B Ting
- 1] Department of Haematology, The Alfred Hospital, 55 Commercial Road, Melbourne, Victoria, Australia [2] Australian Centre for Blood Diseases, Division of Blood Cancers, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
| | - C M Croce
- Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, 460 West 12th Avenue, Columbus, OH, USA
| | - C Tam
- Department of Haematology, Peter MacCallum Cancer Centre, St. Andrews's Place, East Melbourne, Victoria, Australia
| | - F Mackay
- Department of Immunology, Monash University Central Clinical School, Alfred Medical Research and Education Precinct (AMREP), 89 Commercial Road, Melbourne, Victoria, Australia
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Enhanced early innate and T cell-mediated responses in subjects immunized with Anthrax Vaccine Adsorbed Plus CPG 7909 (AV7909). Vaccine 2014; 32:6847-54. [PMID: 24530403 DOI: 10.1016/j.vaccine.2014.01.096] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/17/2014] [Accepted: 01/30/2014] [Indexed: 11/23/2022]
Abstract
NuThrax™ (Anthrax Vaccine Adsorbed with CPG 7909 Adjuvant) (AV7909) is in development. Samples obtained in a phase Ib clinical trial were tested to confirm biomarkers of innate immunity and evaluate effects of CPG 7909 (PF-03512676) on adaptive immunity. Subjects received two intramuscular doses of commercial BioThrax(®) (Anthrax Vaccine Adsorbed, AVA), or two intramuscular doses of one of four formulations of AV7909. IP-10, IL-6, and C-reactive protein (CRP) levels were elevated 24-48 h after administration of AV7909 formulations, returning to baseline by Day 7. AVA (no CPG 7909) resulted in elevated IL-6 and CRP, but not IP-10. Another marker of CpG, transiently decreased absolute lymphocyte counts (ALCs), correlated with transiently increased IP-10. Cellular recall responses to anthrax protective antigen (PA) or PA peptides were assessed by IFN-γ ELISpot assay performed on cryopreserved PBMCs obtained from subjects prior to immunization and 7 days following the second immunization (study day 21). One-half of subjects that received AV7909 with low-dose (0.25mg/dose) CPG 7909 possessed positive Day 21 T cell responses to PA. In contrast, positive T cell responses occurred at an 11% average rate (1/9) for AVA-treated subjects. Differences in cellular responses due to dose level of CPG 7909 were not associated with differences in humoral anti-PA IgG responses, which were elevated for recipients of AV7909 compared to recipients of AVA. Serum markers at 24 or 48 h (i.e. % ALC decrease, or increase in IL-6, IP-10, or CRP) correlated with the humoral (antibody) responses 1 month later, but did not correlate with cellular ELISpot responses. In summary, biomarkers of early responses to CPG 7909 were confirmed, and adding a CpG adjuvant to a vaccine administered twice resulted in increased T cell effects relative to vaccine alone. Changes in early biomarkers correlated with subsequent adaptive humoral immunity but not cellular immunity.
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