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Wertheimer T, Zwicky P, Rindlisbacher L, Sparano C, Vermeer M, de Melo BMS, Haftmann C, Rückert T, Sethi A, Schärli S, Huber A, Ingelfinger F, Xu C, Kim D, Häne P, Fonseca da Silva A, Muschaweckh A, Nunez N, Krishnarajah S, Köhler N, Zeiser R, Oukka M, Korn T, Tugues S, Becher B. IL-23 stabilizes an effector T reg cell program in the tumor microenvironment. Nat Immunol 2024; 25:512-524. [PMID: 38356059 PMCID: PMC10907296 DOI: 10.1038/s41590-024-01755-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 01/12/2024] [Indexed: 02/16/2024]
Abstract
Interleukin-23 (IL-23) is a proinflammatory cytokine mainly produced by myeloid cells that promotes tumor growth in various preclinical cancer models and correlates with adverse outcomes. However, as to how IL-23 fuels tumor growth is unclear. Here, we found tumor-associated macrophages to be the main source of IL-23 in mouse and human tumor microenvironments. Among IL-23-sensing cells, we identified a subset of tumor-infiltrating regulatory T (Treg) cells that display a highly suppressive phenotype across mouse and human tumors. The use of three preclinical models of solid cancer in combination with genetic ablation of Il23r in Treg cells revealed that they are responsible for the tumor-promoting effect of IL-23. Mechanistically, we found that IL-23 sensing represents a crucial signal driving the maintenance and stabilization of effector Treg cells involving the transcription factor Foxp3. Our data support that targeting the IL-23/IL-23R axis in cancer may represent a means of eliciting antitumor immunity.
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Affiliation(s)
- Tobias Wertheimer
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Pascale Zwicky
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Lukas Rindlisbacher
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Colin Sparano
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Marijne Vermeer
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Bruno Marcel Silva de Melo
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
- Department of Pharmacology, Center for Research in Inflammatory Diseases, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Claudia Haftmann
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Tamina Rückert
- Department of Internal Medicine I, Hematology, Oncology, and Stem Cell Transplantation, Faculty of Medicine, Medical Centre, University of Freiburg, Freiburg, Germany
| | - Aakriti Sethi
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Stefanie Schärli
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Anna Huber
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Florian Ingelfinger
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Caroline Xu
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Daehong Kim
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Philipp Häne
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - André Fonseca da Silva
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Andreas Muschaweckh
- Institute for Experimental Neuroimmunology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Nicolas Nunez
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Sinduya Krishnarajah
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Natalie Köhler
- Department of Internal Medicine I, Hematology, Oncology, and Stem Cell Transplantation, Faculty of Medicine, Medical Centre, University of Freiburg, Freiburg, Germany
- Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg, Germany
| | - Robert Zeiser
- Department of Internal Medicine I, Hematology, Oncology, and Stem Cell Transplantation, Faculty of Medicine, Medical Centre, University of Freiburg, Freiburg, Germany
- Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg, Germany
| | - Mohamed Oukka
- Department of Immunology, University of Washington, Seattle, WA, USA
| | - Thomas Korn
- Institute for Experimental Neuroimmunology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Sonia Tugues
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland.
| | - Burkhard Becher
- Department of Inflammation Research, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland.
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Gu SL, Nath S, Markova A. Safety of Immunomodulatory Systemic Therapies Used in the Management of Immune-Related Cutaneous Adverse Events. Pharmaceuticals (Basel) 2023; 16:1610. [PMID: 38004475 PMCID: PMC10674388 DOI: 10.3390/ph16111610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/08/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023] Open
Abstract
Immune-related cutaneous adverse events (ircAEs) commonly occur in patients on treatment with immune checkpoint inhibitors and can significantly reduce patient quality of life. These are often treated with immunomodulatory agents, including glucocorticoids, immunosuppressants, and biologics. While often effective at managing symptoms, these therapies can cause several adverse events which may limit their use. In addition, immunomodulatory agents should be used with particular caution in patients receiving immunotherapy, as the efficacy of the oncologic regimen may potentially be undermined. In this review, we summarize the safety of systemic therapies that are used in the management of ircAEs, with a particular focus on the resultant risk of secondary tumor progression in patients with active cancer.
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Affiliation(s)
- Stephanie L. Gu
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sandy Nath
- Urgent Care Service, Memorial Sloan Kettering Cancer, New York, NY 10065, USA
| | - Alina Markova
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10065, USA
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Prognostic Model for Clear-cell Renal Cell Carcinoma Based on Natural Killer Cell-related Genes. Clin Genitourin Cancer 2022; 21:e126-e137. [PMID: 36513558 DOI: 10.1016/j.clgc.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Natural killer (NK) cells are a key factor affecting progression and immune surveillance of clear-cell renal cell carcinoma (ccRCC). This study sought to construct a natural killer cell-related prognostic signature (NKRPS) to predict the outcome of ccRCC patients and to furnish guidance for finding appropriate treatment strategies. METHODS From the TCGA and ArrayExpress databases, transcriptomic profiles and relevant clinical information of ccRCC patients were downloaded for the TCGA cohort (n = 515) and the E-MTAB-1980 cohort (n = 101). With the univariate Cox analysis and LASSO-Cox regression algorithm, a NKRPS was built to evaluate patients' prognosis. Receiver operating characteristic (ROC) curves and calibration curves were drawn to estimate the predictive power of the prognostic model. Then, tumor microenvironment (TME), tumor mutational burden (TMB), sensitization to immune checkpoint inhibitors (ICIs) therapy and targeted drug treatment were analyzed in ccRCC patients. RESULTS Nine genes (BID, CCL7, CSF2, IL23A, KNSTRN, RHBDD3, PIK3R3, RNF19B and VAV3) were identified to construct a NKRPS. High-risk group displayed undesirable survival compared to low-risk group (P < .05). Moreover, the area under the curve (AUC) of ROC at 1-, 3- and 5-year were 0.766, 0.755, and 0.757, respectively. High-risk group was characterized by superior immune infiltration, higher TMB, and higher expression of 5 ICI-related genes. Additionally, this model enabled to predict the sensitivity of patients to chemotherapy drugs. CONCLUSION NKRPS had a strong predictive power on prognosis of ccRCC patients, which may facilitate individualized treatment and medical decision making.
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Awad RM, Meeus F, Ceuppens H, Ertveldt T, Hanssens H, Lecocq Q, Mateusiak L, Zeven K, Valenta H, De Groof TWM, De Vlaeminck Y, Krasniqi A, De Veirman K, Goyvaerts C, D'Huyvetter M, Hernot S, Devoogdt N, Breckpot K. Emerging applications of nanobodies in cancer therapy. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 369:143-199. [PMID: 35777863 DOI: 10.1016/bs.ircmb.2022.03.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cancer is a heterogeneous disease, requiring treatment tailored to the unique phenotype of the patient's tumor. Monoclonal antibodies (mAbs) and variants thereof have enabled targeted therapies to selectively target cancer cells. Cancer cell-specific mAbs have been used for image-guided surgery and targeted delivery of radionuclides or toxic agents, improving classical treatment strategies. Cancer cell-specific mAbs can further inhibit tumor cell growth or can stimulate immune-mediated destruction of cancer cells, a feature that has also been achieved through mAb-mediated manipulation of immune cells and pathways. Drawbacks of mAbs and their variants, together with the discovery of camelid heavy chain-only antibodies and the many advantageous features of their variable domains, referred to as VHHs, single domain antibodies or nanobodies (Nbs), resulted in the exploration of Nbs as an alternative targeting moiety. We therefore review the state-of-the-art as well as novel exploitation strategies of Nbs for targeted cancer therapy.
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Affiliation(s)
- Robin Maximilian Awad
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Fien Meeus
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hannelore Ceuppens
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Thomas Ertveldt
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Heleen Hanssens
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Quentin Lecocq
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Lukasz Mateusiak
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Katty Zeven
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hana Valenta
- Lab for Nanobiology, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Timo W M De Groof
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Yannick De Vlaeminck
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ahmet Krasniqi
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Cleo Goyvaerts
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Matthias D'Huyvetter
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sophie Hernot
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nick Devoogdt
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karine Breckpot
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium.
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Inflammatory Mediators and Gut Microbial Toxins Drive Colon Tumorigenesis by IL-23 Dependent Mechanism. Cancers (Basel) 2021; 13:cancers13205159. [PMID: 34680308 PMCID: PMC8533859 DOI: 10.3390/cancers13205159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/03/2021] [Accepted: 10/08/2021] [Indexed: 01/01/2023] Open
Abstract
Simple Summary Western-style diet, rich in high fat, is the major cause of obesity and enhanced risk of colon cancer in the USA and worldwide. The inflammatory molecules are a well-established link between obesity and the modulation of colon tumorigenesis. In particular, IL-23 plays an important role in the impact of a western-style diet on obesity, the gut microbiome, and colon tumorigenesis. However, the underlying mechanism of IL-23 production for colon tumor progression and whether IL-23 can be a potential target is not clear. Our findings signify the role of pro-tumorigenic innate immune cells, including dendritic cells and macrophages in IL-23 production by bacterial toxins and eicosanoids. IL-23 knockdown in the tumorigenic dendritic cells and macrophages inhibited the colon tumor cell and organoids growth. Taken together, targeting IL-23 may be a promising option for the prevention and treatment of high-fat/obesity-associated colon cancer in clinical trials. Abstract Obesity-associated chronic inflammation predisposes colon cancer risk development. Interleukin-23 (IL-23) is a potential inflammatory mediator linking obesity to chronic colonic inflammation, altered gut microbiome, and colon carcinogenesis. We aimed to elucidate the role of pro-inflammatory eicosanoids and gut bacterial toxins in priming dendritic cells and macrophages for IL-23 secretion to promote colon tumor progression. To investigate the association of IL-23 with obesity and colon tumorigenesis, we utilized TCGA data set and colonic tumors from humans and preclinical models. To understand IL-23 production by inflammatory mediators and gut microbial toxins, we performed several in vitro mechanistic studies to mimic the tumor microenvironment. Colonic tumors were utilized to perform the ex vivo experiments. Our findings showed that IL-23 is elevated in obese individuals, colonic tumors and correlated with reduced disease-free survival. In vitro studies showed that IL-23 treatment increased the colon tumor cell self-renewal, migration, and invasion while disrupting epithelial barrier permeability. Co-culture experiments of educated dendritic cells/macrophages with colon cancer cells significantly increased the tumor aggression by increasing the secretory levels of IL-23, and these observations are further supported by ex vivo rat colonic tumor organotypic experiments. Our results demonstrate gut microbe toxins and eicosanoids facilitate IL-23 production, which plays an important role in obesity-associated colonic tumor progression. This newly identified nexus represents a potential target for the prevention and treatment of obesity-associated colon cancer.
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Gaggero S, Witt K, Carlsten M, Mitra S. Cytokines Orchestrating the Natural Killer-Myeloid Cell Crosstalk in the Tumor Microenvironment: Implications for Natural Killer Cell-Based Cancer Immunotherapy. Front Immunol 2021; 11:621225. [PMID: 33584718 PMCID: PMC7878550 DOI: 10.3389/fimmu.2020.621225] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 12/09/2020] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are endowed with germline-encoded receptors that enable them to detect and kill malignant cells without prior priming. Over the years, overwhelming evidence has identified an essential role for NK cells in tumor immune surveillance. More recently, clinical trials have also highlighted their potential in therapeutic settings. Yet, data show that NK cells can be dysregulated within the tumor microenvironment (TME), rendering them ineffective in eradicating the cancer cells. This has been attributed to immune suppressive factors, including the tumor cells per se, stromal cells, regulatory T cells, and soluble factors such as reactive oxygen species and cytokines. However, the TME also hosts myeloid cells such as dendritic cells, macrophages, neutrophils, and myeloid-derived suppressor cells that influence NK cell function. Although the NK-myeloid cell crosstalk can promote anti-tumor responses, myeloid cells in the TME often dysregulate NK cells via direct cell-to-cell interactions down-regulating key NK cell receptors, depletion of nutrients and growth factors required for NK cell growth, and secretion of metabolites, chemokines and cytokines that ultimately alter NK cell trafficking, survival, and cytotoxicity. Here, we review the complex functions of myeloid-derived cytokines in both supporting and suppressing NK cells in the TME and how NK cell-derived cytokines can influence myeloid subsets. We discuss challenges related to these interactions in unleashing the full potential of endogenous and adoptively infused NK cells. Finally, we present strategies aiming at improving NK cell-based cancer immunotherapies via pathways that are involved in the NK-myeloid cell crosstalk in the TME.
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Affiliation(s)
- Silvia Gaggero
- Univ. Lille, CNRS, INSERM, CHU Lille, Institut pour la Recherche contre le Cancer de Lille, UMR9020 - UMR-S 1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Kristina Witt
- Center for Hematology and Regenerative Medicine, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Mattias Carlsten
- Center for Hematology and Regenerative Medicine, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden.,Center for Cell Therapy and Allogeneic Stem Cell Transplantation, Karolinska University Hospital, Stockholm, Sweden
| | - Suman Mitra
- Univ. Lille, CNRS, INSERM, CHU Lille, Institut pour la Recherche contre le Cancer de Lille, UMR9020 - UMR-S 1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
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El-Gedamy M, El-Khayat Z, Abol-Enein H, El-Said A, El-Nahrery E. Rs-1884444 G/T variant in IL-23 receptor is likely to modify risk of bladder urothelial carcinoma by regulating IL-23/IL-17 inflammatory pathway. Cytokine 2020; 138:155355. [PMID: 33187815 DOI: 10.1016/j.cyto.2020.155355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 09/29/2020] [Accepted: 10/19/2020] [Indexed: 12/24/2022]
Abstract
Bladder urothelial carcinoma (BUC) is a chronic relapsing urological malignancy, which poses a serious threat to human life. Non-resolving chronic-inflammation at the neoplastic site is associated consistently with inducing tumor-progression and poor patient outcomes. Interleukin 23 receptor (IL-23R) is a key element in T-helper 17 cell-mediated inflammatory process, that plays a critical role in orchestrating tumor-promoting inflammation. Therefore, we hypothesized that potentially functional genetic variant rs1884444 G/T of IL-23R may modify BUC risk. To validate this hypothesis, our findings demonstrated that the rs1884444 G/T variant was significantly associated with a reduced risk of BUC compared to controls observed under allelic (T vs. G) and dominant (GT + TT vs. GG) models (P < 0.05). In addition, the frequency of the T-allele has dropped to very low values in the case of high-grades and invasive-tumors (P < 0.05). Thus, T-allele has emerged as a reliable genetic marker for good prognosis of BUC. In tumorgenesis, the binding-affinity of the receptor seemed to be distorted by the effect of the non-conservative G/T variation, which in turn caused the IL-23/IL-17 pathway to be disabled. This was recognized by low levels of IL-23 and IL-17 in the serum of patients, under the influence of all the tested genetic models (P < 0.01). Results also indicated that the level of the receptor-bearing immune cells could be altered in response to the G/T protective effect. For example, the median counts of T-helper CD4+ cells and CD56+ natural killers increased significantly in conjunction with the decrease in the median count of CD14+ tumor-associated-macrophages under the dominant model. Nevertheless, the causative link between this subtle polymorphism and the immune-surveillance against BUC needs further in-depth investigation. Overall, we concluded that the rs-1884444 G/T variant is highly-associated with a reduction in the BUC risk, which may occur via deregulation of the IL-23/IL-17 pathway.
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Affiliation(s)
- Mohammed El-Gedamy
- Department of Chemistry (Biochemistry branch), Faculty of Science, Suez University, Suez, Egypt
| | - Zakaria El-Khayat
- Medical Biochemistry Department, National Research Center, Giza, Egypt
| | - Hassan Abol-Enein
- Division of Urology, Urology and Nephrology Center, Mansoura University, Egypt
| | - Afaf El-Said
- Genetics Unit, Children Hospital, Mansoura University, Egypt
| | - Eslam El-Nahrery
- Department of Chemistry (Biochemistry branch), Faculty of Science, Suez University, Suez, Egypt.
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Santostefano M, Herzyk D, Montgomery D, Wolf J. Nonclinical safety of tildrakizumab, a humanized anti-IL-23p19 monoclonal antibody, in nonhuman primates. Regul Toxicol Pharmacol 2019; 108:104476. [PMID: 31536773 DOI: 10.1016/j.yrtph.2019.104476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/18/2019] [Accepted: 09/13/2019] [Indexed: 01/18/2023]
Abstract
Tildrakizumab (also known as MK-3222), is a high-affinity, humanized, immunoglobin G1κ monoclonal antibody targeting the p19 subunit of interleukin-23 recently approved for the treatment of moderate to severe plaque psoriasis in the US, Europe, and Australia. The safety profile of tildrakizumab was characterized in nonclinical studies using a pharmacologically relevant cynomolgus monkey model. In repeat-dose toxicity studies, cynomolgus monkeys were chronically treated with subcutaneous (SC) injections of 100 mg/kg of tildrakizumab every 2 weeks up to 9 months. Tildrakizumab was well tolerated, with no toxicological findings (including assessment of reproductive organs; hormonal effects; and cardiovascular, respiratory, and central nervous system function) at systemic exposures approximately 90 times higher than the recommended human dose of 100 mg. An embryofetal developmental study conducted in pregnant monkeys revealed no treatment-related effects to the developing fetus following SC administration of tildrakizumab 100 mg/kg. In a pre- and postnatal development study, 2 neonatal deaths due to potential viral infection at 100 mg/kg were considered of uncertain relationship to the treatment based on a lack of historical data on the occurrence of viral infection in neonate cynomolgus monkeys. The results of this comprehensive nonclinical safety program support the safe use of tildrakizumab.
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Affiliation(s)
- Michael Santostefano
- Safety Assessment and Laboratory Animal Resources, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA, 02115-5727, United States.
| | - Danuta Herzyk
- Safety Assessment and Laboratory Animal Resources, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, United States.
| | - Diana Montgomery
- Pharmacokinetics, Predictive and Clinical Immunogenicity, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, United States.
| | - Jayanthi Wolf
- Global Regulatory Affairs, Merck & Co., Inc., 351 N. Sumneytown Pike, North Wales, PA, 19454-2505, United States.
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Kansara M, Thomson K, Pang P, Dutour A, Mirabello L, Acher F, Pin JP, Demicco EG, Yan J, Teng MWL, Smyth MJ, Thomas DM. Infiltrating Myeloid Cells Drive Osteosarcoma Progression via GRM4 Regulation of IL23. Cancer Discov 2019; 9:1511-1519. [PMID: 31527131 DOI: 10.1158/2159-8290.cd-19-0154] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 06/03/2019] [Accepted: 07/18/2019] [Indexed: 11/16/2022]
Abstract
The glutamate metabotropic receptor 4 (GRM4) locus is linked to susceptibility to human osteosarcoma, through unknown mechanisms. We show that Grm4-/- gene-targeted mice demonstrate accelerated radiation-induced tumor development to an extent comparable with Rb1+/- mice. GRM4 is expressed in myeloid cells, selectively regulating expression of IL23 and the related cytokine IL12. Osteosarcoma-conditioned media induce myeloid cell Il23 expression in a GRM4-dependent fashion, while suppressing the related cytokine Il12. Both human and mouse osteosarcomas express an increased IL23:IL12 ratio, whereas higher IL23 expression is associated with worse survival in humans. Consistent with an oncogenic role, Il23 -/- mice are strikingly resistant to osteosarcoma development. Agonists of GRM4 or a neutralizing antibody to IL23 suppressed osteosarcoma growth in mice. These findings identify a novel, druggable myeloid suppressor pathway linking GRM4 to the proinflammatory IL23/IL12 axis. SIGNIFICANCE: Few novel systemic therapies targeting osteosarcoma have emerged in the last four decades. Using insights gained from a genome-wide association study and mouse modeling, we show that GRM4 plays a role in driving osteosarcoma via a non-cell-autonomous mechanism regulating IL23, opening new avenues for therapeutic intervention.See related commentary by Jones, p. 1484.This article is highlighted in the In This Issue feature, p. 1469.
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Affiliation(s)
- Maya Kansara
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia. .,St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - Kristian Thomson
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Puiyi Pang
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Aurelie Dutour
- Cancer Research Center of Lyon, INSERM UMR 1052, CNRS UMR 5286, Centre Leon Berard, Lyon, France
| | - Lisa Mirabello
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, NCI, NIH, Bethesda, Maryland
| | - Francine Acher
- IGF, Universite de Montpellier, CNRS, INSERM, Montpellier, France
| | - Jean-Philippe Pin
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Elizabeth G Demicco
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Juming Yan
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Michele W L Teng
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Mark J Smyth
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - David M Thomas
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia. .,St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
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10
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Yan J, Smyth MJ, Teng MWL. Interleukin (IL)-12 and IL-23 and Their Conflicting Roles in Cancer. Cold Spring Harb Perspect Biol 2018; 10:a028530. [PMID: 28716888 PMCID: PMC6028064 DOI: 10.1101/cshperspect.a028530] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The balance of proinflammatory cytokines interleukin (IL)-12 and IL-23 plays a key role in shaping the development of antitumor or protumor immunity. In this review, we discuss the role IL-12 and IL-23 plays in tumor biology from preclinical and clinical data. In particular, we discuss the mechanism by which IL-23 promotes tumor growth and metastases and how the IL-12/IL-23 axis of inflammation can be targeted for cancer therapy.
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Affiliation(s)
- Juming Yan
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston 4006, Queensland, Australia
- School of Medicine, University of Queensland, Herston 4006, Queensland, Australia
| | - Mark J Smyth
- School of Medicine, University of Queensland, Herston 4006, Queensland, Australia
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston 4006, Queensland, Australia
| | - Michele W L Teng
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston 4006, Queensland, Australia
- School of Medicine, University of Queensland, Herston 4006, Queensland, Australia
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11
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Ergen EN, Yusuf N. Inhibition of interleukin-12 and/or interleukin-23 for the treatment of psoriasis: What is the evidence for an effect on malignancy? Exp Dermatol 2018; 27:737-747. [PMID: 29704872 PMCID: PMC6023723 DOI: 10.1111/exd.13676] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2018] [Indexed: 12/25/2022]
Abstract
Immune cells and cytokines play an important role in the pathogenesis of psoriasis. Interleukin-12 (IL-12) and IL-23 promote cellular responses mediated by T cells, which contribute to an inflammatory loop responsible for the induction and maintenance of psoriatic plaques. Antibodies that inhibit IL-12/23 or IL-23 are key treatment options for patients with psoriasis. IL-12 and IL-23 also play a key role in immune responses to infections and tumors. A growing body of information from clinical trials, cohort studies, postmarketing reports, genetic studies and animal models provides insights into the potential biological relationships between IL-12/23 inhibition and malignancies. We summarize this information in tables and provide some context for the interpretation of these data with the goal of informing dermatologists who are using IL-12/23 or IL-23 inhibitors to treat patients with psoriasis.
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Affiliation(s)
- Elizabeth N. Ergen
- Department of DermatologyUniversity of Alabama at BirminghamBirminghamALUSA
| | - Nabiha Yusuf
- Department of DermatologyUniversity of Alabama at BirminghamBirminghamALUSA
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12
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Yan J, Allen S, Vijayan D, Li XY, Harjunpää H, Takeda K, Liu J, Cua DJ, Smyth MJ, Teng MWL. Experimental Lung Metastases in Mice Are More Effectively Inhibited by Blockade of IL23R than IL23. Cancer Immunol Res 2018; 6:978-987. [PMID: 29921599 DOI: 10.1158/2326-6066.cir-18-0011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/14/2018] [Accepted: 06/14/2018] [Indexed: 12/28/2022]
Abstract
Tumor-induced immunosuppression is mediated through various mechanisms including engagement of immune checkpoint receptors on effector cells, function of immunoregulatory cells such as regulatory T cells and myeloid-derived suppressor cells, and deployment of immunosuppressive cytokines such as TGFβ and IL10. IL23 is a cytokine that negatively affects antitumor immunity. In this study, we investigated whether IL23-deficient (IL23p19-/-) and IL23R-deficient (IL23R-/-) mice phenocopied each other, with respect to their tumor control. We found that IL23R-/- mice had significantly fewer lung metastases compared with IL23p19-/- mice across three different experimental lung metastasis models (B16F10, LWT1, and RM-1). Similarly, IL23R blocking antibodies were more effective than antibodies neutralizing IL23 in suppressing experimental lung metastases. The antimetastatic activity of anti-IL23R was dependent on NK cells and IFNγ but independent of CD8+ T cells, CD4+ T cells, activating Fc receptors, and IL12. Furthermore, our data suggest this increased antitumor efficacy was due to an increase in the proportion of IFNγ-producing NK cells in the lungs of B16F10 tumor-bearing mice. Anti-IL23R, but not anti-IL23p19, partially suppressed lung metastases in tumor-bearing mice neutralized for IL12p40. Collectively, our data imply that IL23R has tumor-promoting effects that are partially independent of IL23p19. Blocking IL23R may be more effective than neutralizing IL23 in the suppression of tumor metastases. Cancer Immunol Res; 6(8); 978-87. ©2018 AACR.
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Affiliation(s)
- Juming Yan
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
- School of Medicine, University of Queensland, Brisbane, Australia
| | - Stacey Allen
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Dipti Vijayan
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Xian-Yang Li
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Heidi Harjunpää
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
- School of Medicine, University of Queensland, Brisbane, Australia
| | - Kazuyoshi Takeda
- Division of Cell Biology, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Jing Liu
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Daniel J Cua
- Merck Research Laboratories, Palo Alto, California
| | - Mark J Smyth
- School of Medicine, University of Queensland, Brisbane, Australia
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Michele W L Teng
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Australia.
- School of Medicine, University of Queensland, Brisbane, Australia
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13
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Interleukin-23 promotes the migration and invasion of gastric cancer cells by inducing epithelial-to-mesenchymal transition via the STAT3 pathway. Biochem Biophys Res Commun 2018; 499:273-278. [DOI: 10.1016/j.bbrc.2018.03.144] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 03/19/2018] [Indexed: 01/31/2023]
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14
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Procyanidin, a kind of biological flavonoid, induces protective anti-tumor immunity and protects mice from lethal B16F10 challenge. Int Immunopharmacol 2017; 47:251-258. [DOI: 10.1016/j.intimp.2017.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 04/08/2017] [Accepted: 04/10/2017] [Indexed: 12/13/2022]
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15
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Liu J, Blake SJ, Yong MCR, Harjunpää H, Ngiow SF, Takeda K, Young A, O'Donnell JS, Allen S, Smyth MJ, Teng MWL. Improved Efficacy of Neoadjuvant Compared to Adjuvant Immunotherapy to Eradicate Metastatic Disease. Cancer Discov 2016; 6:1382-1399. [PMID: 27663893 DOI: 10.1158/2159-8290.cd-16-0577] [Citation(s) in RCA: 567] [Impact Index Per Article: 70.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 12/17/2022]
Abstract
Immunotherapy has recently entered a renaissance phase with the approval of multiple agents for the treatment of cancer. Immunotherapy stands ready to join traditional modalities, including surgery, chemotherapy, radiation, and hormone therapy, as a pillar of cancer treatment. Although immunotherapy has begun to have success in advanced cancer treatment, its scheduling and efficacy with surgery to treat earlier stages of cancer and prevent distant metastases have not been systematically examined. Here, we have used two models of spontaneously metastatic breast cancers in mice to illustrate the significantly greater therapeutic power of neoadjuvant, compared with adjuvant, immunotherapies in the context of primary tumor resection. Elevated and sustained peripheral tumor-specific immune responses underpinned the outcome, and blood sampling of tumor-specific CD8+ T cells immediately prior to and post surgery may provide a predictor of outcome. These data now provide a strong rationale to extensively test and compare neoadjuvant immunotherapy in humans. SIGNIFICANCE We demonstrate the significantly greater therapeutic efficacy of neoadjuvant, compared with adjuvant, immunotherapies to eradicate distant metastases following primary tumor resection. Elevated and sustained peripheral tumor-specific immune responses underpinned the outcome, and blood sampling of tumor-specific CD8+ T cells immediately prior to and post surgery may provide a predictor of outcome. Cancer Discov; 6(12); 1382-99. ©2016 AACR.See related commentary by Melero et al., p. 1312This article is highlighted in the In This Issue feature, p. 1293.
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Affiliation(s)
- Jing Liu
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Stephen J Blake
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Michelle C R Yong
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Heidi Harjunpää
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Shin Foong Ngiow
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kazuyoshi Takeda
- Division of Cell Biology, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, Japan
| | - Arabella Young
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Jake S O'Donnell
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Stacey Allen
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.,School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Michele W L Teng
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. .,School of Medicine, University of Queensland, Herston, Queensland, Australia
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16
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Liu J, Blake SJ, Harjunpää H, Fairfax KA, Yong MCR, Allen S, Kohrt HE, Takeda K, Smyth MJ, Teng MWL. Assessing Immune-Related Adverse Events of Efficacious Combination Immunotherapies in Preclinical Models of Cancer. Cancer Res 2016; 76:5288-301. [PMID: 27503925 DOI: 10.1158/0008-5472.can-16-0194] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 07/07/2016] [Indexed: 11/16/2022]
Abstract
New combination immunotherapies are displaying both efficacy and immune-related adverse events (irAE) in humans. However, grade 3/4 irAEs occur in a high proportion, which can lead to discontinuation of treatment and can result in fatalities if not promptly treated. Prolonged T regulatory cell (Treg) depletion in tumor-bearing Foxp3-DTR mice using diphtheria toxin (DT) mirrored the spectrum of antitumor responses and severity of irAEs that can occur in ipilimumab/nivolumab-treated patients. In contrast, transient Treg depletion or anti-CTLA-4/PD-1 therapy had equivalent effects in mice, lowering the immune tolerance threshold and allowing irAEs to be more easily induced following treatment with additional immunomodulatory antibodies. Transient Treg depletion of DT in combination with anti-PD-1 or anti-TIM-3 monoclonal antibodies had a high therapeutic window compared with DT plus anti-CD137. In contrast, DT plus anti-CD137-treated mice developed severe irAEs similar to grade 3/4 clinical symptoms. These irAEs appeared because of an infiltration of activated proliferating effector T cells in the tissues producing IFNγ and TNF; however, TNF blockade decreased irAEs severity without impacting on tumor growth. Cancer Res; 76(18); 5288-301. ©2016 AACR.
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Affiliation(s)
- Jing Liu
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Stephen J Blake
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Heidi Harjunpää
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Kirsten A Fairfax
- The Walter and Eliza Hall Institute of Medical Research, Molecular Medicine Division, Melbourne, Australia. The Department of Experimental Medicine, University of Melbourne, Parkville, Victoria, Australia
| | - Michelle C R Yong
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Stacey Allen
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Holbrook E Kohrt
- Division of Oncology, Department of Medicine, Stanford University, Stanford, California
| | - Kazuyoshi Takeda
- Division of Cell Biology, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, Japan
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Michele W L Teng
- Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. School of Medicine, University of Queensland, Herston, Queensland, Australia.
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17
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Pérez-Torres A, Vera-Aguilera J, Sahaza JH, Vera-Aguilera C, Moreno-Aguilera E, Pulido-Camarillo E, Nuñez-Ochoa L, Jeganathan P. Hematological Effects, Serum, and Pulmonary Cytokine Profiles in a Melanoma Mouse Model Treated with GK1. Cancer Biother Radiopharm 2016; 30:247-54. [PMID: 26181852 DOI: 10.1089/cbr.2015.1835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE In a previous study, we demonstrated the therapeutic efficacy of a subcutaneous injection of GK1 peptide in a melanoma mouse model, effectively increasing the mean survival time by 42.58%, delaying tumor growth, and increasing intratumoral necrosis compared with the control. As a first approach to investigate the anti-melanoma effect of GK1, this study was carried out to determine the hematological effects along with both serum and lung cytokine profiles in a melanoma lung metastatic model. MATERIALS AND METHODS Thirteen C57BL6 female mice were transfected in the lateral tail vein with 2×10(5) B16-F0 melanoma cells. After 7 days, mice were separated in two different groups and treatments were initiated (day 0): The GK1-treated group (seven mice) were injected every 5 days intravenously with GK1 (10 μg) in the lateral tail vein, and the control group (six mice) were injected every 5 days with intravenous saline solution. Blood samples were collected every 5 days from day 0; tumor samples were obtained for cytokine measurements on the day of sacrifice. RESULTS In the peripheral blood, mice treated with GK1 presented a statistically significant decrease in IFN-γ (p<0.05), and lymphocytes tended to be lower compared with the control mice (p=0.06). Lung metastatic analysis demonstrated a significant increase in IFN-γ and IL-12p70 (p<0.05); a significant decrease in IL-17, IL-4, IL-22, IL-23, and IL-12p40 (p<0.05); and a marginal decrease in IL-1β (p=0.07) compared with the control. DISCUSSION Our results suggest that an intratumoral increase of cytokines with antitumor activity along with an intratumoral decrease of cytokines with protumor activity could explain, in part, the anti-melanoma effects of GK1 in a lung metastatic melanoma mouse model. Further studies must be performed to elucidate the precise mechanisms of action for GK1 peptide against melanoma, and their eventual application in humans.
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Affiliation(s)
- Armando Pérez-Torres
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | | | - Jorge H Sahaza
- 3 Corporación para Investigaciones Biológicas (CIB) , Unidad de Micología Médica y Experimental, Medellín, Colombia
| | - Carlos Vera-Aguilera
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | - Eduardo Moreno-Aguilera
- 4 Servicio de Gastrocirugía, Hospital de Especialidades , Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México DF, México
| | - Evelyn Pulido-Camarillo
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | - Luis Nuñez-Ochoa
- 5 Departamento de Patología Clínica/Oncología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México , México City, México
| | - Pratheepa Jeganathan
- 6 Department of Mathematics and Statistics, Texas Tech University , Lubbock, Texas
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Abstract
Immunotherapy is now evolving into a major therapeutic option for cancer patients. Such clinical advances also promote massive interest in the search for novel immunotherapy targets, and to understand the mechanism of action of current drugs. It is projected that a series of novel immunotherapy agents will be developed and assessed for their therapeutic activity. In light of this, in vivo experimental mouse models that recapitulate human malignancies serve as valuable tools to validate the efficacy and safety profile of immunotherapy agents, before their transition into clinical trials. In this review, we will discuss the major classes of experimental mouse models of cancer commonly used for immunotherapy assessment and provide examples to guide the selection of appropriate models. We present some new data concerning the utility of a carcinogen-induced tumor model for comparing immunotherapies and combining immunotherapy with chemotherapy. We will also highlight some recent advances in experimental modeling of human malignancies in mice that are leading towards personalized therapy in patients.
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Affiliation(s)
- Shin Foong Ngiow
- QIMR Berghofer Medical Research Institute, Herston, QLD, Australia; University of Queensland, Herston, QLD, Australia
| | - Sherene Loi
- Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; University of Melbourne, Parkville, VIC, Australia
| | - David Thomas
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Mark J Smyth
- QIMR Berghofer Medical Research Institute, Herston, QLD, Australia; University of Queensland, Herston, QLD, Australia; Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia; University of Melbourne, Parkville, VIC, Australia.
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19
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Teng MWL, Bowman EP, McElwee JJ, Smyth MJ, Casanova JL, Cooper AM, Cua DJ. IL-12 and IL-23 cytokines: from discovery to targeted therapies for immune-mediated inflammatory diseases. Nat Med 2015; 21:719-29. [PMID: 26121196 DOI: 10.1038/nm.3895] [Citation(s) in RCA: 572] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/05/2015] [Indexed: 12/18/2022]
Abstract
The cytokine interleukin-12 (IL-12) was thought to have a central role in T cell-mediated responses in inflammation for more than a decade after it was first identified. Discovery of the cytokine IL-23, which shares a common p40 subunit with IL-12, prompted efforts to clarify the relative contribution of these two cytokines in immune regulation. Ustekinumab, a therapeutic agent targeting both cytokines, was recently approved to treat psoriasis and psoriatic arthritis, and related agents are in clinical testing for a variety of inflammatory disorders. Here we discuss the therapeutic rationale for targeting these cytokines, the unintended consequences for host defense and tumor surveillance and potential ways in which these therapies can be applied to treat additional immune disorders.
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Affiliation(s)
- Michele W L Teng
- 1] Cancer Immunoregulation and Immunotherapy and Immunology in Cancer and Infection Laboratories, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. [2] School of Medicine, University of Queensland, Herston, Queensland, Australia
| | | | | | - Mark J Smyth
- 1] Cancer Immunoregulation and Immunotherapy and Immunology in Cancer and Infection Laboratories, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. [2] School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Jean-Laurent Casanova
- 1] St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, New York, USA. [2] Howard Hughes Medical Institute, New York, New York, USA. [3] Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM, Paris, France. [4] Pediatric Hematology and Immunology Unit, Necker Hospital for Sick Children, Paris, France. [5] Paris Descartes University, Imagine Institute, Paris, France
| | | | - Daniel J Cua
- Merck Research Laboratories, Palo Alto, California, USA
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20
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Abstract
Natural killer (NK) cells are naturally circulating innate lymphoid cells that protect against tumor initiation and metastasis and contribute to immunopathology during inflammation. The signals that prime NK cells are not completely understood, and, although the importance of IFN type I is well recognized, the role of type III IFN is comparatively very poorly studied. IL-28R-deficient mice were resistant to LPS and cecal ligation puncture-induced septic shock, and hallmark cytokines in these disease models were dysregulated in the absence of IL-28R. IL-28R-deficient mice were more sensitive to experimental tumor metastasis and carcinogen-induced tumor formation than WT mice, and additional blockade of interferon alpha/beta receptor 1 (IFNAR1), but not IFN-γ, further enhanced metastasis and tumor development. IL-28R-deficient mice were also more susceptible to growth of the NK cell-sensitive lymphoma, RMAs. Specific loss of IL-28R in NK cells transferred into lymphocyte-deficient mice resulted in reduced LPS-induced IFN-γ levels and enhanced tumor metastasis. Therefore, by using IL-28R-deficient mice, which are unable to signal type III IFN-λ, we demonstrate for the first time, to our knowledge, the ability of IFN-λ to directly regulate NK cell effector functions in vivo, alone and in the context of IFN-αβ.
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21
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Ferrari de Andrade L, Ngiow SF, Stannard K, Rusakiewicz S, Kalimutho M, Khanna KK, Tey SK, Takeda K, Zitvogel L, Martinet L, Smyth MJ. Natural killer cells are essential for the ability of BRAF inhibitors to control BRAFV600E-mutant metastatic melanoma. Cancer Res 2014; 74:7298-308. [PMID: 25351955 DOI: 10.1158/0008-5472.can-14-1339] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BRAF(V600E) is a major oncogenic mutation found in approximately 50% of human melanoma that confers constitutive activation of the MAPK pathway and increased melanoma growth. Inhibition of BRAF(V600E) by oncogene targeting therapy increases overall survival of patients with melanoma, but is unable to produce many durable responses. Adaptive drug resistance remains the main limitation to BRAF(V600E) inhibitor clinical efficacy and immune-based strategies could be useful to overcome disease relapse. Tumor microenvironment greatly differs between visceral metastasis and primary cutaneous melanoma, and the mechanisms involved in the antimetastatic efficacy of BRAF(V600E) inhibitors remain to be determined. To address this question, we developed a metastatic BRAF(V600E)-mutant melanoma cell line and demonstrated that the antimetastatic properties of BRAF inhibitor PLX4720 (a research analogue of vemurafenib) require host natural killer (NK) cells and perforin. Indeed, PLX4720 not only directly limited BRAF(V600E)-induced tumor cell proliferation, but also affected NK cell functions. We showed that PLX4720 increases the phosphorylation of ERK1/2, CD69 expression, and proliferation of mouse NK cells in vitro. NK cell frequencies were significantly enhanced by PLX4720 specifically in the lungs of mice with BRAF(V600E) lung metastases. Furthermore, PLX4720 also increased human NK cell pERK1/2, CD69 expression, and IFNγ release in the context of anti-NKp30 and IL2 stimulation. Overall, this study supports the idea that additional NK cell-based immunotherapy (by checkpoint blockade or agonists or cytokines) may combine well with BRAF(V600E) inhibitor therapy to promote more durable responses in melanoma.
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Affiliation(s)
- Lucas Ferrari de Andrade
- Laboratorio de Pesquisa em Células Inflamatórias e Neoplásicas Group, Universidade Federal do Paraná, Curitiba, Paraná, Brazil. Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Shin F Ngiow
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kimberley Stannard
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Sylvie Rusakiewicz
- Gustave Roussy Cancer Campus, Villejuif, France. INSERM U1015, Villejuif, France. Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France
| | - Murugan Kalimutho
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kum Kum Khanna
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Siok-Keen Tey
- Bone Marrow Transplant Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kazuyoshi Takeda
- Department of Immunology, Juntendo University School of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus, Villejuif, France. INSERM U1015, Villejuif, France. Université Paris Sud-XI, Faculté de Médecine, Le Kremlin Bicêtre, France. Department of Medical Oncology, IGR, Villejuif, France
| | - Ludovic Martinet
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia. School of Medicine, University of Queensland, Herston, Queensland, Australia.
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Siddikuzzaman, Grace VMB. Anti-metastatic study of liposome-encapsulated all trans retinoic acid (ATRA) in B16F10 melanoma cells-implanted C57BL/6 mice. Cancer Invest 2014; 32:507-17. [PMID: 25311249 DOI: 10.3109/07357907.2014.964408] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
B16F10 cells-induced C57BL/6 mice were divided into several groups and the free all trans retinoic acid (ATRA) and liposome-encapsulated ATRA were given for 21 days. The encapsulated ATRA treatment lowered the oxidative stress and lipid profile near to the normal level in the drug-treated mice. Encapsulated ATRA treatment showed substantial decrease in serum cytokines and increase in lifespan when compared with free ATRA treatment. These results imply that the liposome-encapsulated ATRA may help to achieve a higher level of ATRA in comparison with free ATRA treatment and helps to enhance anticancer drug delivery in liposome-encapsulated ATRA treatment.
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Affiliation(s)
- Siddikuzzaman
- Department of Biotechnology, Karunya University, Coimbatore-641 114, Tamil Nadu, India
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23
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New insights into IL-12-mediated tumor suppression. Cell Death Differ 2014; 22:237-46. [PMID: 25190142 DOI: 10.1038/cdd.2014.134] [Citation(s) in RCA: 351] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 07/17/2014] [Accepted: 07/21/2014] [Indexed: 12/14/2022] Open
Abstract
During the past two decades, interleukin-12 (IL-12) has emerged as one of the most potent cytokines in mediating antitumor activity in a variety of preclinical models. Through pleiotropic effects on different immune cells that form the tumor microenvironment, IL-12 establishes a link between innate and adaptive immunity that involves different immune effector cells and cytokines depending on the type of tumor or the affected tissue. The robust antitumor response exerted by IL-12, however, has not yet been successfully translated into the clinics. The majority of clinical trials involving treatment with IL-12 failed to show sustained antitumor responses and were associated to toxic side effects. Here we discuss the therapeutic effects of IL-12 from preclinical to clinical studies, and will highlight promising strategies to take advantage of the antitumor activity of IL-12 while limiting adverse effects.
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Li S, Li Y, Qu X, Liu X, Liang J. Detection and significance of TregFoxP3(+) and Th17 cells in peripheral blood of non-small cell lung cancer patients. Arch Med Sci 2014; 10:232-9. [PMID: 24904654 PMCID: PMC4042043 DOI: 10.5114/aoms.2014.42573] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 10/20/2012] [Accepted: 12/22/2012] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The aim of this study was to explore the relationships between TregFoxP3(+) cells and Th17 cells and occurrence of lung cancer. MATERIAL AND METHODS The proportions of TregFoxP3(+) and Th17 cells, the expression of FoxP3 and RORγt mRNA, and the levels of related cell factors such as transforming growth factor-β (TGF-β), interleukin IL-17 (IL-17) and IL-23 were determined respectively by flow cytometry analysis, real-time-polymerase chain reaction (PCR), and ELISA in peripheral blood of 18 healthy people and 26 patients with non-small cell lung cancer (NSCLC). RESULTS The levels of TregFoxP3(+) and Th17, expression of FoxP3 and RORγt mRNA, and ratios of TregFoxP3(+)/Th17 and FoxP3/RORγt in peripheral blood with NSCLC were higher than those in healthy controls (p < 0.05). The proportion of Th17 cells from NSCLC patients was positively correlated with that of TregFoxP3(+) (r = 0.81, p < 0.05). The receiver-operating characteristic (ROC) curve demonstrates that the increased level of TregFoxP3(+)/Th17 in the peripheral blood may be a useful indicator in early diagnosis of non-small cell lung carcinoma. The TregFoxP3(+)/Th17 and FoxP3/RORγt levels for patients in stage IV were higher than those of patients in stages I, II, and III (p < 0.05). The levels of TGF-β, IL-17, and IL-23 were higher in NSCLC patients than those in healthy controls. CONCLUSIONS The results suggest that ratios of Treg/Th17 correlate with the stage of NSCLC.
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Affiliation(s)
- Sha Li
- Department of Oncology, Qianfoshan Hospital, Shandong University, Jinan, P.R. China
| | - Yan Li
- Department of Oncology, Qianfoshan Hospital, Shandong University, Jinan, P.R. China
| | - Xun Qu
- Institute of Basic Medical Sciences and Key Laboratory of Cardiovascular Proteomics of Shandong Province, Qilu Hospital, Shandong University, Jinan, P.R. China
| | - Xiaolin Liu
- Department of Oncology, Qianfoshan Hospital, Shandong University, Jinan, P.R. China
| | - Jing Liang
- Department of Oncology, Qianfoshan Hospital, Shandong University, Jinan, P.R. China
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von Scheidt B, Leung PSK, Yong MCR, Zhang Y, Towne JE, Smyth MJ, Teng MWL. Combined anti-CD40 and anti-IL-23 monoclonal antibody therapy effectively suppresses tumor growth and metastases. Cancer Res 2014; 74:2412-21. [PMID: 24556719 DOI: 10.1158/0008-5472.can-13-1646] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tumor-induced immunosuppression remains one of the major obstacles to many potentially effective cancer therapies and vaccines. Host interleukin (IL)-23 suppresses the immune response during tumor initiation, growth, and metastases, and neutralization of IL-23 causes IL-12-dependent antitumor effects. Here, we report that combining agonistic anti-CD40 monoclonal antibodies (mAb) to drive IL-12 production and anti-IL-23 mAbs to counter the tumor promoting effects of IL-23 has greater antitumor activity than either agent alone. This increased antitumor efficacy was observed in several experimental and spontaneous lung metastases models as well as in models of de novo carcinogenesis. The combination effects were dependent on host IL-12, perforin, IFN-γ, natural killer, and/or T cells and independent of host B cells and IFN-αβ sensitivity. Interestingly, in the experimental lung metastases tumor models, we observed that intracellular IL-23 production was specifically restricted to MHC-II(hi)CD11c(+)CD11b(+) cells. Furthermore, an increase in proportion of these IL-23-producing cells was detected only in tumor models where IL-23 neutralization was therapeutic. Overall, these data suggest the clinical potential of using anti-CD40 (push) and anti-IL-23 mAbs (pull) to tip the IL-12/23 balance in established tumors.
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Affiliation(s)
- Bianca von Scheidt
- Authors' Affiliations: Cancer Immunology Program, Trescowthick Laboratories, Peter MacCallum Cancer Centre, St. Andrews Place, East Melbourne; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria; Immunology in Cancer and Infection Laboratory; Cancer Immunoregulation and Immunotherapy Laboratory, Queensland Institute of Medical Research; School of Medicine, University of Queensland, Herston, Queensland, Australia; and AMGEN Incorporated, Seattle, Washington
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Zhang L, Li J, Li L, Zhang J, Wang X, Yang C, Li Y, Lan F, Lin P. IL-23 selectively promotes the metastasis of colorectal carcinoma cells with impaired Socs3 expression via the STAT5 pathway. Carcinogenesis 2014; 35:1330-40. [PMID: 24464786 DOI: 10.1093/carcin/bgu017] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Interleukin-23 (IL-23) is a conventional proinflammatory IL related to colorectal carcinoma (CRC). The signal transducer and activator of transcription (STAT) and suppressors of cytokine signaling (Socs) molecules, respectively, serve as agonists and antagonists of IL-23-associated inflammation. However, it remains unknown whether IL-23 directly affects CRC metastasis. In this study, we measured the metastasis of several human CRC cell lines stimulated by IL-23 in vitro and in vivo. Interestingly, the prometastasis effect of IL-23 was observed only in SW-620 cells. IL-23-associated migration and invasion was mediated by the phosphorylation of STAT5. The expression of Socs3 in SW-620 was impaired by IL-23 via DNA methylation and DNA methyltransferase-1 (DNMT-1)-dependent way. The DNMT-1-associated regulation was not observed in the other three cells. Socs3 was further confirmed to inhibit the prometastatic function of IL-23 both in vitro and in vivo. We analyzed the clinical correlation between the level of IL-23 in tumors and the metastasis of CRC and found that higher IL-23 levels along with lower Socs3 in CRC tissues accounted for more metastatic cases. In conclusion, it was demonstrated that IL-23, assisted by STAT5, might only promote the metastasis of CRC with deficient Socs3 expression in which IL-23-induced DNMT-1 was involved. It was elucidated that Socs3 seemed to be one of the important factors that mediate the selectivity of IL-23. Taken together, these discoveries give rise to new insights into the role of IL-23 in cancer biology and provide additional preclinical data regarding IL-23-associated therapy for CRC.
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Affiliation(s)
- Le Zhang
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Jun Li
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Li Li
- Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Jie Zhang
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Xiaodong Wang
- Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Chuanhua Yang
- Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Yanyan Li
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Feng Lan
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Ping Lin
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy and Gastrointestinal Surgery Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
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Lee HH, Yang SS, Vo MT, Cho WJ, Lee BJ, Leem SH, Lee SH, Cha HJ, Park JW. Tristetraprolin down-regulates IL-23 expression in colon cancer cells. Mol Cells 2013; 36:571-6. [PMID: 24292977 PMCID: PMC3887959 DOI: 10.1007/s10059-013-0268-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 10/25/2013] [Accepted: 10/31/2013] [Indexed: 12/13/2022] Open
Abstract
Interleukin 23 (IL-23) is an inflammatory cytokine that plays an important role in tumor promotion. Expression of IL-23 is increased in cancer cells and correlates with tumor progression. However, the mechanisms regulating IL-23 expression in cancer cells are still unclear. Here we report that tristetraprolin (TTP), an AU-rich element (ARE)-binding protein, inhibits IL-23 production in CT26 mouse colon cancer cells. Overexpression of TTP decreased the stability of IL-23 mRNA and the expression level of IL-23 in CT26 cells. Conversely, inhibition of TTP by siRNA increased IL-23 production. TTP destabilized a luciferase mRNA reporter containing the IL-23 mRNA 3'UTR, which contains five AREs. Analyses of deletion and point mutants of the IL-23 mRNA 3'UTR demonstrated that the ARE cluster between the third and fifth AREs was responsible for TTP-mediated destabilization of IL-23 mRNA. A RNA electrophoretic mobility shift assay confirmed that TTP binds to this ARE cluster. Taken together, these results demonstrate that TTP acts as a negative regulator of IL-23 gene expression in mouse colon cancer cells and suggest its potential application as a novel therapeutic target to control IL-23-mediated tumor promotion.
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Affiliation(s)
- Hyun Hee Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749,
Korea
- Department of Biological Sciences, Dong-A University, Busan 604-714,
Korea
| | - Song Soo Yang
- Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 682-060,
Korea
| | - Mai-Tram Vo
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749,
Korea
| | - Wha Ja Cho
- Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 682-060,
Korea
| | - Byung Ju Lee
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749,
Korea
| | - Sun-Hee Leem
- Department of Biological Sciences, Dong-A University, Busan 604-714,
Korea
| | - Sang-Hyun Lee
- Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 682-060,
Korea
| | - Hee Jeong Cha
- Department of Pathology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 682-060,
Korea
| | - Jeong Woo Park
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749,
Korea
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Ngiow SF, Teng MWL, Smyth MJ. A balance of interleukin-12 and -23 in cancer. Trends Immunol 2013; 34:548-55. [PMID: 23954142 DOI: 10.1016/j.it.2013.07.004] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 07/16/2013] [Accepted: 07/19/2013] [Indexed: 12/14/2022]
Abstract
Interleukin (IL)-12 and IL-23 share the IL-12p40 molecule. IL-12 promotes T helper (Th)1 immunity and IL-23 promotes Th17 immunity, and it has recently become apparent that the balance between IL-12 and IL-23 is important in carcinogenesis. A series of studies demonstrated that, where tumor initiation, growth, and metastasis are concerned, IL-12 may act independently of interferon (IFN)-γ, and IL-23 independently of IL-17A. This review explores the activity of IL-23 in carcinogenesis. In the context of the tumor-inhibitory effects of IL-12, and tumor-promoting effects of IL-23, we discuss the use of anti-IL-12p/23 monoclonal antibodies (mAbs) in autoimmune inflammatory disorders and the alternative specific neutralization of IL-23.
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Affiliation(s)
- Shin Foong Ngiow
- Immunology in Cancer and Infection Laboratory, Queensland Institute of Medical Research, Herston, 4006, Queensland, Australia
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29
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Stagg J, Andre F, Loi S. Immunomodulation via Chemotherapy and Targeted Therapy: A New Paradigm in Breast Cancer Therapy? ACTA ACUST UNITED AC 2013; 7:267-72. [PMID: 23904828 DOI: 10.1159/000342166] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cytotoxic chemotherapy in the treatment of tumors has traditionally been thought to be immunosuppressive. Increasing evidence suggests the contrary and has introduced the concept of 'immunogenic' chemotherapy or, in other words, the concept that the innate and adaptive immune systems are critical in determining the long-term efficacy of some cytotoxic-based (and radiotherapy-based) regimens. The underlying mechanisms how these therapies can stimulate an antitumor immune response have been demonstrated recently. In this article, we review the background of this new paradigm and how combinations of traditional agents with the new immunotherapeutic therapies may significantly advance our treatment of breast cancer.
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Affiliation(s)
- John Stagg
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Faculté de Pharmacie et Institut du Cancer de Montréal, Montréal, Québec, Canada
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Stagg J, Allard B. Immunotherapeutic approaches in triple-negative breast cancer: latest research and clinical prospects. Ther Adv Med Oncol 2013; 5:169-81. [PMID: 23634195 DOI: 10.1177/1758834012475152] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Triple-negative breast cancer (TNBC), as defined by the absence of estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 expression, is a challenging disease with the poorest prognosis of all breast cancer subtypes. Importantly, there are currently no known molecular targets for this subgroup of patients. Recent advances in genomics and gene expression profiling have shed new light on the molecule heterogeneity of TNBC. We present an overview of the scientific evidence suggesting that clinical outcome in TNBC is affected by tumor-infiltrating immune cells. We also describe tumor-associated antigens recently identified in TNBC. Finally, we review the current literature on promising immunotherapies for TNBC, including tumor vaccine approaches, immune-checkpoint inhibitors, antagonists of immunosuppressive molecules and adoptive cell therapies. It is our contention that selected patients with TNBC with lymphocytic tumor infiltrates at diagnosis may benefit from immune-based therapies and that these immunotherapies will be most beneficial in combination with cytotoxic drugs that potentiate adaptive anti-tumor immunity.
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Affiliation(s)
- John Stagg
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Faculté de Pharmacie et Institut du Cancer de Montréal, Montréal, Québec, Canada H2L 4M1
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Kwong B, Gai SA, Elkhader J, Wittrup KD, Irvine DJ. Localized immunotherapy via liposome-anchored Anti-CD137 + IL-2 prevents lethal toxicity and elicits local and systemic antitumor immunity. Cancer Res 2013; 73:1547-58. [PMID: 23436794 PMCID: PMC3594475 DOI: 10.1158/0008-5472.can-12-3343] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Immunostimulatory agonists such as anti-CD137 and interleukin (IL)-2 have elicited potent antitumor immune responses in preclinical studies, but their clinical use is limited by inflammatory toxicities that result upon systemic administration. We hypothesized that by rigorously restricting the biodistribution of immunotherapeutic agents to a locally accessible lesion and draining lymph node(s), effective local and systemic antitumor immunity could be achieved in the absence of systemic toxicity. We anchored anti-CD137 and an engineered IL-2Fc fusion protein to the surfaces of PEGylated liposomes, whose physical size permitted dissemination in the tumor parenchyma and tumor-draining lymph nodes but blocked entry into the systemic circulation following intratumoral injection. In the B16F10 melanoma model, intratumoral liposome-coupled anti-CD137 + IL-2Fc therapy cured a majority of established primary tumors while avoiding the lethal inflammatory toxicities caused by equivalent intratumoral doses of soluble immunotherapy. Immunoliposome therapy induced protective antitumor memory and elicited systemic antitumor immunity that significantly inhibited the growth of simultaneously established distal tumors. Tumor inhibition was CD8(+) T-cell-dependent and was associated with increased CD8(+) T-cell infiltration in both treated and distal tumors, enhanced activation of tumor antigen-specific T cells in draining lymph nodes, and a reduction in regulatory T cells in treated tumors. These data suggest that local nanoparticle-anchored delivery of immuno-agonists represents a promising strategy to improve the therapeutic window and clinical applicability of highly potent but otherwise intolerable regimens of cancer immunotherapy. Cancer Res; 73(5); 1547-58. ©2012 AACR.
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Affiliation(s)
- Brandon Kwong
- Koch Institute for Integrative Cancer Research, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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Li J, Zhang L, Zhang J, Wei Y, Li K, Huang L, Zhang S, Gao B, Wang X, Lin P. Interleukin 23 regulates proliferation of lung cancer cells in a concentration-dependent way in association with the interleukin-23 receptor. Carcinogenesis 2012; 34:658-66. [PMID: 23250909 DOI: 10.1093/carcin/bgs384] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A proinflammatory cytokine, interleukin 23 (IL-23), plays a role in tumor progression by inducing inflammation in the tumor microenvironment, although there is debate about its role in carcinogenesis. Direct effects of IL-23 on tumor cells have been reported rarely, and contradictory effects have been observed. Here, we studied such effects of IL-23 in lung cancer cells in vitro and in vivo and explored the underlying mechanism. We found IL-23 receptor expression in tissues from lung adenocarcinoma and small cell carcinoma but not in lung squamous cell carcinoma tissue. Interestingly, different concentrations of IL-23 had opposite effects in the same types of cells. We confirmed that the different effects could be explained by differences in binding to the IL-23 receptor (subunits IL-23r and IL-12Rβ1). Low concentrations of IL-23 promoted the proliferation of IL-23 receptor-positive A549 and SPCA-1 lung cancer cells by binding to IL-23r, whereas high concentrations of IL-23 inhibited proliferation of these cells by binding to both IL-23r and IL-12Rβ1. In contrast, IL-23 had no effect on IL-23 receptor-negative SK-MES-1 cells. IL-23 regulated the growth of human lung cancer cells through its effects on STAT3 expression and phosphorylation in a concentration-dependent way; the Ki-67 gene was involved in these processes. Our findings demonstrate for the first time that IL-23 affects the proliferation of IL-23 receptor-positive lung cancer cells and that this effect is dependent on the IL-23 concentration. This can explain at least part of the inconsistent reports on the role of IL-23 in the progression of carcinogenesis.
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Affiliation(s)
- Jun Li
- Division of Geriatrics, Center for Medical Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Anti-cancer versus cancer-promoting effects of the interleukin-17-producing T helper cells. Immunol Lett 2012; 149:123-33. [PMID: 23159638 DOI: 10.1016/j.imlet.2012.11.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/15/2012] [Accepted: 11/05/2012] [Indexed: 12/18/2022]
Abstract
Research on T helper 17 (Th17) cells with regard to immunoediting has revealed elusive results. Whereas enhanced Th17 response and related molecules such as interleukin (IL)-17, IL-21, IL-22, IL-23 and STAT3 accompanied tumor induction and progression, finding that tumor growth/stage was negatively correlated with increased infiltration of Th17 cells in the tumor mass has prompted elucidation of various antitumor mechanisms elicited by Th17 and their related molecules. The pro-tumor efficacy of Th17 response included promotion of neutrophilia and induction of angiogenic (e.g. VEGF, MMP2 and MMP9) and anti-apoptotic factors (e.g. Bcl-XL), as well as expansion and activation of myeloid-derived suppressor cells, which facilitate generation of tumor-specific regulatory T cells. Other tumor immunogenic settings revealed anti-tumor pathways including induction of cytotoxic activity, expression of MHC antigens, the ability Th17 cells to reside within the tumor, and to convert into IFN-γ producers. Notably, Th17 cell related molecules exert indirect pro- or anti-tumor effects via inducing viral persistence or mediating protective mechanisms against bacterial and viral infection. Herein, the recent literature revealing such immunoediting events mediated by Th17 cells and their associated molecules as delivered by various experimental regimens and observed in cancer patient are revised, with a focus on some proposed anti-cancer therapies.
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Baird AM, Leonard J, Naicker KM, Kilmartin L, O'Byrne KJ, Gray SG. IL-23 is pro-proliferative, epigenetically regulated and modulated by chemotherapy in non-small cell lung cancer. Lung Cancer 2012; 79:83-90. [PMID: 23116756 DOI: 10.1016/j.lungcan.2012.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 09/20/2012] [Accepted: 10/05/2012] [Indexed: 01/28/2023]
Abstract
BACKGROUND IL-23 is a member of the IL-6 super-family and plays key roles in cancer. Very little is currently known about the role of IL-23 in non-small cell lung cancer (NSCLC). METHODS RT-PCR and chromatin immunopreciptiation (ChIP) were used to examine the levels, epigenetic regulation and effects of various drugs (DNA methyltransferase inhibitors, Histone Deacetylase inhibitors and Gemcitabine) on IL-23 expression in NSCLC cells and macrophages. The effects of recombinant IL-23 protein on cellular proliferation were examined by MTT assay. Statistical analysis consisted of Student's t-test or one way analysis of variance (ANOVA) where groups in the experiment were three or more. RESULTS In a cohort of primary non-small cell lung cancer (NSCLC) tumours, IL-23A expression was significantly elevated in patient tumour samples (p < 0.05). IL-23A expression is epigenetically regulated through histone post-translational modifications and DNA CpG methylation. Gemcitabine, a chemotherapy drug indicated for first-line treatment of NSCLC also induced IL-23A expression. Recombinant IL-23 significantly increased cellular proliferation in NSCLC cell lines. CONCLUSIONS These results may therefore have important implications for treating NSCLC patients with either epigenetic targeted therapies or Gemcitabine.
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Affiliation(s)
- Anne-Marie Baird
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland.
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35
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Inhibitory effects of the attenuated Salmonella typhimurium containing the IL-2 gene on hepatic tumors in mice. J Biomed Biotechnol 2012. [PMID: 23193368 PMCID: PMC3502055 DOI: 10.1155/2012/946139] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To observe the inhibitory effects of an attenuated S. typhimurium strain carrying IL-2 gene (TPI) on hepatoma cell line (HepG2) and transplanted tumors in mice. TPI, TPG (an attenuated S. typhimurium strain carrying green fluorescent protein gene), and TP (an attenuated S. typhimurium strain) strains were transfected into HepG2 cells. At 48h after transfecting, the transfection rate was 82.58 ± 1.74%. The expression level of IL-2 was (99.5 ± 12.2) ng/1 × 106 cells. Compared with TPG, TP, and normal mouse groups, the proportion of CD4+ T and CD8+ T cells in the blood from the TPI group was higher, the levels of IgM and IgG1 were significantly increased, and the proliferation activity of splenic lymphocyte was significantly stronger. The transplanted tumor weight in the TPI group was significantly smaller than that in the other two groups. The infiltration of lymphocytes increased in the tumor from TPI group mice. TPI was effectively transfected into cancer cells, which expressed the protein of interest. Oral administration of TPI prolonged survival of mice transplanted with hepatoma cell tumours.
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36
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Grace VMB. Inhibition of metastatic lung cancer in C57BL/6 mice by liposome encapsulated all trans retinoic acid (ATRA). Int Immunopharmacol 2012; 14:570-9. [PMID: 23021983 DOI: 10.1016/j.intimp.2012.09.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 09/12/2012] [Accepted: 09/12/2012] [Indexed: 12/25/2022]
Abstract
The purpose of this study was to investigate whether all trans retinoic acid (ATRA) incorporated in liposome composed of distearoylphosphatidylcholine (DSPC/cholesterol) could inhibit the metastatic lung cancer in mice more efficiently than free ATRA. Metastatic lung cancer model was developed by intravenous injection of B16F10 cells and it is also referred as melanoma model. In this present study, C57BL/6 mice were divided into several groups as per experimental design and the free ATRA and liposome encapsulated ATRA were given for 21 days at a dose of 0.60 mg/kg body weight/day after cell line implantation. After 21 days, mice were sacrificed at different time interval for ATRA level analysis in serum and lung tissue by HPLC method and the remaining mice were kept for anticancer study. The ATRA level increased significantly in serum and lung tissue in liposome encapsulated ATRA treated mice. In cancer bearing mice, tumor nodule formation decreased and life span increased after receiving liposome encapsulated ATRA treatment than free ATRA treated mice. This result implies that the liposome encapsulated ATRA has maintained more ATRA concentration in lung tissue and showed more inhibition on the lung tumor nodule formation. The results indicate a possible use of liposome encapsulated ATRA in prevention of lung metastasis.
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Chow MT, Sceneay J, Paget C, Wong CSF, Duret H, Tschopp J, Möller A, Smyth MJ. NLRP3 suppresses NK cell-mediated responses to carcinogen-induced tumors and metastases. Cancer Res 2012; 72:5721-32. [PMID: 22986739 DOI: 10.1158/0008-5472.can-12-0509] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The NLRP3 inflammasome acts as a danger signal sensor that triggers and coordinates the inflammatory response upon infectious insults or tissue injury and damage. However, the role of the NLRP3 inflammasome in natural killer (NK) cell-mediated control of tumor immunity is poorly understood. Here, we show in a model of chemical-induced carcinogenesis and a series of experimental and spontaneous metastases models that mice lacking NLRP3 display significantly reduced tumor burden than control wild-type (WT) mice. The suppression of spontaneous and experimental tumor metastases and methylcholanthrene (MCA)-induced sarcomas in mice deficient for NLRP3 was NK cell and IFN-γ-dependent. Focusing on the amenable B16F10 experimental lung metastases model, we determined that expression of NLRP3 in bone marrow-derived cells was necessary for optimal tumor metastasis. Tumor-driven expansion of CD11b(+)Gr-1(intermediate) (Gr-1(int)) myeloid cells within the lung tumor microenvironment of NLRP3(-/-) mice was coincident with increased lung infiltrating activated NK cells and an enhanced antimetastatic response. The CD11b(+)Gr-1(int) myeloid cells displayed a unique cell surface phenotype and were characterized by their elevated production of CCL5 and CXCL9 chemokines. Adoptive transfer of this population into WT mice enhanced NK cell numbers in, and suppression of, B16F10 lung metastases. Together, these data suggested that NLRP3 is an important suppressor of NK cell-mediated control of carcinogenesis and metastases and identify CD11b(+)Gr-1(int) myeloid cells that promote NK cell antimetastatic function.
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Affiliation(s)
- Melvyn T Chow
- Cancer Immunology Program, Peter MacCallum Cancer Centre, St Andrews Place, East Melbourne, Victoria, Australia
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38
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Zhang S, Li J, Zhang J, Zhang L, Lin P. [Interleukin 23 promotes lung adenocarcinoma a549 cell migration and invasion]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2012; 15:253-9. [PMID: 22613329 PMCID: PMC6000124 DOI: 10.3779/j.issn.1009-3419.2012.05.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
背景与目的 前炎症因子白细胞介素23(interleukin 23, IL-23)是与慢性炎症和肿瘤微环境相关的一种重要的细胞因子,同时IL-23受体在结直肠癌、肺癌、口腔鳞癌等肿瘤细胞中有表达。本研究旨在探讨IL-23能否促进人肺腺癌细胞A549的迁移和侵袭并探讨其机制。 方法 用划痕试验和Transwell小室法测定IL-23对A549的迁移和侵袭的影响,用Real-time PCR和ELISA检测IL-23对基质金属蛋白酶9(matrix metalloproteinase 9, MMP-9)的mRNA和蛋白表达的影响,通过IL-23中和抗体阻断IL-23的作用,进一步证实IL-23对A549迁移和侵袭的影响。 结果 IL-23明显增加了A549细胞的迁移和侵袭能力;同时IL-23能提高A549细胞MMP-9的mRNA表达和其培养上清中MMP-9的蛋白表达,IL-23中和抗体能有效地阻断IL-23对A549的迁移和侵袭的作用。 结论 IL-23可刺激A549细胞表达MMP-9,从而促进A549细胞的迁移和侵袭。
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Affiliation(s)
- Sen Zhang
- Division of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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Abstract
The use of monoclonal antibodies (mAbs) has become a general approach for specifically targeting and treating human disease. In oncology, the therapeutic utility of mAbs is usually evaluated in the context of treatment with standard of care, as well as other small molecule targeted therapies. Many anti-cancer antibody modalities have achieved validation, including the targeting of growth factor and angiogenesis pathways, the induction of tumor cell killing or apoptosis, and the blocking of immune inhibitory mechanisms to stimulate anti-tumor responses. But, as with other targeted therapies, few antibodies are curative because of biological complexities that underlie tumor formation and redundancies in molecular pathways that enable tumors to adapt and show resistance to treatment. This review discusses the combinations of antibody therapeutics that are emerging to improve efficacy and durability within a specific biological mechanism (e.g., immunomodulation or the inhibition of angiogenesis) and across multiple biological pathways (e.g., inhibition of tumor growth and induction of tumor cell apoptosis).
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Mattarollo SR, Loi S, Duret H, Ma Y, Zitvogel L, Smyth MJ. Pivotal Role of Innate and Adaptive Immunity in Anthracycline Chemotherapy of Established Tumors. Cancer Res 2011; 71:4809-20. [DOI: 10.1158/0008-5472.can-11-0753] [Citation(s) in RCA: 236] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Smith AM, Qualls JE, O'Brien K, Balouzian L, Johnson PF, Schultz-Cherry S, Smale ST, Murray PJ. A distal enhancer in Il12b is the target of transcriptional repression by the STAT3 pathway and requires the basic leucine zipper (B-ZIP) protein NFIL3. J Biol Chem 2011; 286:23582-90. [PMID: 21566115 DOI: 10.1074/jbc.m111.249235] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Deregulated IL-12 and IL-23 production from activated myeloid lineage cells is a key driver of numerous T cell-dependent autoimmune and inflammatory diseases. IL-12 and IL-23 share a common p40 subunit encoded by Il12b, which is negatively regulated at the transcriptional level by the STAT3 (signal transducer and activator of transcription 3)-activating anti-inflammatory cytokine IL-10. We found that IL-10 targets an enhancer 10 kb upstream of the Il12b transcriptional start site. Within the enhancer, a single 10-bp site is required for the inhibitory effects of IL-10 and is bound by NFIL3 (nuclear factor, interleukin 3-regulated), a B-ZIP transcription factor. Myeloid cells lacking NFIL3 produce excessive IL-12p40 and increased IL-12p70. Thus, the STAT3-dependent expression of NFIL3 is a key component of a negative feedback pathway in myeloid cells that suppresses proinflammatory responses.
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Affiliation(s)
- Amber M Smith
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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