1
|
Kurt İnci B, Acar E, Gürler F, İlhan A, Yıldız F, Ardıç F, Öksüzoğlu B, Özdemir N, Özet A, Esendağlı G, Yazıcı O. Prognostic Role of OX40, LAG-3, TIM-3 and PD-L1 Expression in Bone and Soft Tissue Sarcomas. J Clin Med 2024; 13:3620. [PMID: 38930150 PMCID: PMC11204964 DOI: 10.3390/jcm13123620] [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: 04/26/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Introduction: The current study aims to evaluate the OX40, TIM-3, LAG-3, and PD-L1 targeted pathways in the regulation of T-cell activity in sarcoma patients to determine their relationship with overall survival (OS). Method: This study included one hundred and eleven patients with bone and soft tissue sarcoma diagnosed in two centers between 2010 and 2020. OX40, LAG-3, TIM-3 and PD-L1 expression levels were evaluated immunohistochemically from pathology preparations. Results: PD-L1 staining was detected in tumor cells, OX40, LAG-3, TIM-3 staining was detected in inflammatory cells in tumor tissue. In univariate analysis, no significant relationship was found between OX40, TIM-3, LAG-3, and PD-L1 staining and overall survival (respectively: p = 0.12, p = 0.49, p = 0.31, p = 0.95). When grade and stage at diagnosis, which were found to be significant in univariate analysis, along with OX-40, TIM-3, LAG-3, and PD-L1, were evaluated in multivariate analysis, a positive effect of OX-40 staining on overall survival was determined (p = 0.009). Considering the correlation between PDL-1 and OX40, TIM-3, and LAG-3 staining, a significant positive correlation was found between PDL-1 and TIM-3 and LAG-3 staining (respectively; p = 0.002, p = 0.001). Conclusions: There was no significant relationship between the PDL-1 staining percentage of tumor cells and OX40, TIM-3, and LAG-3 staining in inflammatory cells with the OS of sarcoma patients. However, detecting a significant positive correlation between PDL-1 staining and TIM-3 and LAG-3 staining also holds promise for finding effective targetable combination therapies that can prolong survival in sarcoma patients in the future.
Collapse
Affiliation(s)
- Bediz Kurt İnci
- Medical Oncology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (F.G.); (N.Ö.); (A.Ö.); (O.Y.)
| | - Elif Acar
- Pathology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (E.A.); (G.E.)
| | - Fatih Gürler
- Medical Oncology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (F.G.); (N.Ö.); (A.Ö.); (O.Y.)
| | - Ayşegül İlhan
- Medical Oncology Department, Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital, 2906200 Ankara, Turkey; (A.İ.); (F.Y.); (B.Ö.)
| | - Fatih Yıldız
- Medical Oncology Department, Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital, 2906200 Ankara, Turkey; (A.İ.); (F.Y.); (B.Ö.)
| | - Fisun Ardıç
- Pathology Department, Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital, 2906200 Ankara, Turkey;
| | - Berna Öksüzoğlu
- Medical Oncology Department, Dr. Abdurrahman Yurtaslan Ankara Oncology Hospital, 2906200 Ankara, Turkey; (A.İ.); (F.Y.); (B.Ö.)
| | - Nuriye Özdemir
- Medical Oncology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (F.G.); (N.Ö.); (A.Ö.); (O.Y.)
| | - Ahmet Özet
- Medical Oncology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (F.G.); (N.Ö.); (A.Ö.); (O.Y.)
| | - Güldal Esendağlı
- Pathology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (E.A.); (G.E.)
| | - Ozan Yazıcı
- Medical Oncology Department, Gazi University Hospital, 2906500 Ankara, Turkey; (F.G.); (N.Ö.); (A.Ö.); (O.Y.)
| |
Collapse
|
2
|
Thapa B, Kato S, Nishizaki D, Miyashita H, Lee S, Nesline MK, Previs RA, Conroy JM, DePietro P, Pabla S, Kurzrock R. OX40/OX40 ligand and its role in precision immune oncology. Cancer Metastasis Rev 2024:10.1007/s10555-024-10184-9. [PMID: 38526805 DOI: 10.1007/s10555-024-10184-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Immune checkpoint inhibitors have changed the treatment landscape for various malignancies; however, their benefit is limited to a subset of patients. The immune machinery includes both mediators of suppression/immune evasion, such as PD-1, PD-L1, CTLA-4, and LAG-3, all of which can be inhibited by specific antibodies, and immune-stimulatory molecules, such as T-cell co-stimulatory receptors that belong to the tumor necrosis factor receptor superfamily (TNFRSF), including OX40 receptor (CD134; TNFRSF4), 4-1BB (CD137; TNFRSF9), and glucocorticoid-induced TNFR-related (GITR) protein (CD357; TNFRSF18). In particular, OX40 and its binding ligand OX40L (CD134L; TNFSF4; CD252) are critical for immunoregulation. When OX40 on activated T cells binds OX40L on antigen-presenting cells, T-cell activation and immune stimulation are initiated via enhanced T-cell survival, proliferation and cytotoxicity, memory T-cell formation, and abrogation of regulatory T cell (Treg) immunosuppressive functions. OX40 agonists are in clinical trials both as monotherapy and in combination with other immunotherapy agents, in particular specific checkpoint inhibitors, for cancer treatment. To date, however, only a minority of patients respond. Transcriptomic profiling reveals that OX40 and OX40L expression vary between and within tumor types, and that only ~ 17% of cancer patients have high OX40 and low OX40L, one of the expression patterns that might be theoretically amenable to OX40 agonist enhancement. Taken together, the data suggest that the OX40/OX40L machinery is a critical part of the immune stimulatory system and that understanding endogenous expression patterns of these molecules and co-existing checkpoints merits further investigation in the context of a precision immunotherapy strategy for cancer therapy.
Collapse
Affiliation(s)
- Bicky Thapa
- Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA.
| | - Shumei Kato
- Center for Personalized Cancer Therapy, University of California San Diego, Moores Cancer Center, La Jolla, CA, USA
| | - Daisuke Nishizaki
- Center for Personalized Cancer Therapy, University of California San Diego, Moores Cancer Center, La Jolla, CA, USA
| | | | - Suzanna Lee
- Center for Personalized Cancer Therapy, University of California San Diego, Moores Cancer Center, La Jolla, CA, USA
| | | | | | | | | | | | - Razelle Kurzrock
- MCW Cancer Center and Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, USA
| |
Collapse
|
3
|
Ruiz D, Haynes C, Marable J, Pundkar C, Nance RL, Bedi D, Agarwal P, Suryawanshi AS, Mishra A, Smith BF, Sandey M. Development of OX40 agonists for canine cancer immunotherapy. iScience 2022; 25:105158. [PMID: 36217551 PMCID: PMC9547195 DOI: 10.1016/j.isci.2022.105158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/19/2022] [Accepted: 09/15/2022] [Indexed: 01/13/2023] Open
Abstract
Recent breakthroughs in cancer immunotherapy have provided unprecedented clinical benefits to human cancer patients. Cancer is also one of the most common causes of death in pet dogs. Thus, canine-specific immune therapies targeting similar signaling pathways can provide better treatment options for canine cancer patients. Here, we describe the development and characterization of two canine-specific anti-OX40 agonists to activate OX40 signaling. We show that canine OX40, like human OX40, is not expressed on resting T cells, and its expression is markedly increased on canine CD4 T cells and Tregs after stimulation with concanavalin A (Con-A). cOX40 is also expressed on tumor-infiltrating lymphocytes (TILs) in canine osteosarcoma patients. The canine-specific OX40 agonists strongly activates cPBMCs by increasing IFN-γ expression and do not require Fc receptor-mediated cross-linking for OX40 agonism. Together, these results suggest that cFcOX40L proteins are potent OX40 agonists and have the potential to enhance antitumor immunity in canine cancer patients.
Collapse
Affiliation(s)
- Damien Ruiz
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Chloe Haynes
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Jonathan Marable
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Chetan Pundkar
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Rebecca L. Nance
- Scott Ritchy Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Deepa Bedi
- Biomedical Sciences, Tuskegee University, Tuskegee, AL, USA
| | - Payal Agarwal
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Scott Ritchy Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Amol S. Suryawanshi
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Amarjit Mishra
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Bruce F. Smith
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Scott Ritchy Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Maninder Sandey
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, USA
- Corresponding author
| |
Collapse
|
4
|
Diab A, Hamid O, Thompson JA, Ros W, Eskens FA, Doi T, Hu-Lieskovan S, Klempner SJ, Ganguly B, Fleener C, Wang X, Joh T, Liao K, Salek-Ardakani S, Taylor CT, Chou J, El-Khoueiry AB. A Phase I, Open-Label, Dose-Escalation Study of the OX40 Agonist Ivuxolimab in Patients with Locally Advanced or Metastatic Cancers. Clin Cancer Res 2022; 28:71-83. [PMID: 34615725 PMCID: PMC9401502 DOI: 10.1158/1078-0432.ccr-21-0845] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/08/2021] [Accepted: 09/30/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE Stimulation of effector T cells is an appealing immunotherapeutic approach in oncology. OX40 (CD134) is a costimulatory receptor expressed on activated CD4+ and CD8+ T cells. Induction of OX40 following antigen recognition results in enhanced T-cell activation, proliferation, and survival, and OX40 targeting shows therapeutic efficacy in preclinical studies. We report the monotherapy dose-escalation portion of a multicenter, phase I trial (NCT02315066) of ivuxolimab (PF-04518600), a fully human immunoglobulin G2 agonistic monoclonal antibody specific for human OX40. PATIENTS AND METHODS Adult patients (N = 52) with selected locally advanced or metastatic cancers received ivuxolimab 0.01 to 10 mg/kg. Primary endpoints were safety and tolerability. Secondary/exploratory endpoints included preliminary assessment of antitumor activity and biomarker analyses. RESULTS The most common all-causality adverse events were fatigue (46.2%), nausea (28.8%), and decreased appetite (25.0%). Of 31 treatment-related adverse events, 30 (96.8%) were grade ≤2. No dose-limiting toxicities occurred. Ivuxolimab exposure increased in a dose-proportionate manner from 0.3 to 10 mg/kg. Full peripheral blood target engagement occurred at ≥0.3 mg/kg. Three (5.8%) patients achieved a partial response, and disease control was achieved in 56% of patients. Increased CD4+ central memory T-cell proliferation and activation, and clonal expansion of CD4+ and CD8+ T cells in peripheral blood were observed at 0.1 to 3.0 mg/kg. Increased immune cell infiltrate and OX40 expression were evident in on-treatment tumor biopsies. CONCLUSIONS Ivuxolimab was generally well tolerated with on-target immune activation at clinically relevant doses, showed preliminary antitumor activity, and may serve as a partner for combination studies.
Collapse
Affiliation(s)
- Adi Diab
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Corresponding Author: Adi Diab, UT MD Anderson Cancer Center, 1400 Holcombe Boulevard, Faculty Center Room Fc11.3004, Houston, TX 77030. Phone: 713-745-7336; Fax: 713–745–1046; E-mail:
| | - Omid Hamid
- Immuno-Oncology and Cutaneous Malignancies, The Angeles Clinic and Research Institute, a Cedars-Sinai Affiliate, Los Angeles, California
| | - John A. Thompson
- Division of Medical Oncology, University of Washington School of Medicine/Seattle Cancer Care Alliance, Seattle, Washington
| | - Willeke Ros
- Department of Pharmacology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Ferry A.L.M. Eskens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands
| | - Toshihiko Doi
- Department of Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Siwen Hu-Lieskovan
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Samuel J. Klempner
- Department of Medicine, Massachusetts General Hospital Cancer Center, Boston, Massachusetts
| | | | | | | | | | | | | | | | | | - Anthony B. El-Khoueiry
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California
| |
Collapse
|
5
|
Corti C, Nicolò E, Curigliano G. Novel immune targets for the treatment of triple-negative breast cancer. Expert Opin Ther Targets 2021; 25:815-834. [PMID: 34763593 DOI: 10.1080/14728222.2021.2006187] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION To overcome mechanisms of primary and secondary resistance to the anti-tumor immune response, novel targets such as ICOS, LAG3, and TIM3 are currently being explored at preclinical and early-phase clinical levels. AREAS COVERED This article examines the landscape of the immune therapeutics investigated in early-phase clinical trials for TNBC. Preclinical rationale is provided for each immune target, predominant expression, and function. Clinical implications and preliminary available trial results are discussed and finally, we reflect on aspects of future expectations and challenges in this field. EXPERT OPINION Several immune strategies have been investigated in TNBC, including co-inhibitory molecules beyond PD1-PD-L1 axis, co-stimulatory checkpoints, cancer vaccines, adoptive cell transfer, combination therapies, as well as different routes of administration. Most of approaches showed signs of anti-cancer activity and a good safety profile in early-phase clinical trials. Since IO provided benefit only to a small subgroup of TNBC patients so far, identifying predictive biomarkers is a priority to refine patient-selection. Data from ongoing clinical trials, with the gradually improving interpretation of the breast tumor immune environment, will hopefully refine the role of new immune targets for the treatment of TNBC.
Collapse
Affiliation(s)
- Chiara Corti
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, Irccs, Milan, Italy.,Department of Oncology and Hematology (DIPO), University of Milano, Milano, Italy
| | - Eleonora Nicolò
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, Irccs, Milan, Italy.,Department of Oncology and Hematology (DIPO), University of Milano, Milano, Italy
| | - Giuseppe Curigliano
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, Irccs, Milan, Italy.,Department of Oncology and Hematology (DIPO), University of Milano, Milano, Italy
| |
Collapse
|
6
|
Combined OX40 Agonist and PD-1 Inhibitor Immunotherapy Improves the Efficacy of Vascular Targeted Photodynamic Therapy in a Urothelial Tumor Model. Molecules 2021; 26:molecules26123744. [PMID: 34205347 PMCID: PMC8234268 DOI: 10.3390/molecules26123744] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/31/2021] [Accepted: 06/10/2021] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Vascular targeted photodynamic therapy (VTP) is a nonsurgical tumor ablation approach used to treat early-stage prostate cancer and may also be effective for upper tract urothelial cancer (UTUC) based on preclinical data. Toward increasing response rates to VTP, we evaluated its efficacy in combination with concurrent PD-1 inhibitor/OX40 agonist immunotherapy in a urothelial tumor-bearing model. EXPERIMENTAL DESIGN In mice allografted with MB-49 UTUC cells, we compared the effects of combined VTP with PD-1 inhibitor/OX40 agonist with those of the component treatments on tumor growth, survival, lung metastasis, and antitumor immune responses. RESULTS The combination of VTP with both PD-1 inhibitor and OX40 agonist inhibited tumor growth and prolonged survival to a greater degree than VTP with either immunotherapeutic individually. These effects result from increased tumor infiltration and intratumoral proliferation of cytotoxic and helper T cells, depletion of Treg cells, and suppression of myeloid-derived suppressor cells. CONCLUSIONS Our findings suggest that VTP synergizes with PD-1 blockade and OX40 agonist to promote strong antitumor immune responses, yielding therapeutic efficacy in an animal model of urothelial cancer.
Collapse
|
7
|
Hernández-Barranco A, Nogués L, Peinado H. Could Extracellular Vesicles Contribute to Generation or Awakening of "Sleepy" Metastatic Niches? Front Cell Dev Biol 2021; 9:625221. [PMID: 33738282 PMCID: PMC7960773 DOI: 10.3389/fcell.2021.625221] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Pre-metastatic niches provide favorable conditions for tumor cells to disseminate, home to and grow in otherwise unfamiliar and distal microenvironments. Tumor-derived extracellular vesicles are now recognized as carriers of key messengers secreted by primary tumors, signals that induce the formation of pre-metastatic niches. Recent evidence suggests that tumor cells can disseminate from the very earliest stages of primary tumor development. However, once they reach distal sites, tumor cells can persist in a dormant state for long periods of time until their growth is reactivated and they produce metastatic lesions. In this new scenario, the question arises as to whether extracellular vesicles could influence the formation of these metastatic niches with dormant tumor cells? (here defined as "sleepy niches"). If so, what are the molecular mechanisms involved? In this perspective-review article, we discuss the possible influence of extracellular vesicles in early metastatic dissemination and whether they might play a role in tumor cell dormancy. In addition, we comment whether extracellular vesicle-mediated signals may be involved in tumor cell awakening, considering the possibility that extracellular vesicles might serve as biomarkers to detect early metastasis and/or minimal residual disease (MRD) monitoring.
Collapse
Affiliation(s)
- Alberto Hernández-Barranco
- Microenvironment and Metastasis Laboratory, Molecular Oncology Programme, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - Laura Nogués
- Microenvironment and Metastasis Laboratory, Molecular Oncology Programme, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - Héctor Peinado
- Microenvironment and Metastasis Laboratory, Molecular Oncology Programme, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| |
Collapse
|
8
|
Pardee AD, Butterfield LH. Immunotherapy of hepatocellular carcinoma: Unique challenges and clinical opportunities. Oncoimmunology 2021. [PMID: 22720211 DOI: 10.4161/onc-i.1.1.18344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Current therapies for advanced hepatocellular carcinoma (HCC) are marginally effective and exacerbate underlying liver disease. The ability of immunotherapy to elicit nontoxic, systemic, long-lived anti-tumor activity makes it particularly well-suited for use in the setting of HCC. While therapeutic benefit has been achieved in early clinical trials, the efficacy of immune-based therapies is limited by several unique properties of HCC, most notably the inherently tolerogenic character of the liver in both healthy and diseased (chronically-infected or tumor-bearing) states. Therapeutic regimens that both counteract these immunosuppressive mechanisms and amplify tumor-specific immunity are expected to profoundly improve clinical outcomes for HCC patients.
Collapse
Affiliation(s)
- Angela D Pardee
- Department of Medicine; University of Pittsburgh School of Medicine; Pittsburgh, PA USA
| | | |
Collapse
|
9
|
Pardee AD, Butterfield LH. Immunotherapy of hepatocellular carcinoma: Unique challenges and clinical opportunities. Oncoimmunology 2021; 1:48-55. [PMID: 22720211 PMCID: PMC3376967 DOI: 10.4161/onci.1.1.18344] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Current therapies for advanced hepatocellular carcinoma (HCC) are marginally effective and exacerbate underlying liver disease. The ability of immunotherapy to elicit nontoxic, systemic, long-lived anti-tumor activity makes it particularly well-suited for use in the setting of HCC. While therapeutic benefit has been achieved in early clinical trials, the efficacy of immune-based therapies is limited by several unique properties of HCC, most notably the inherently tolerogenic character of the liver in both healthy and diseased (chronically-infected or tumor-bearing) states. Therapeutic regimens that both counteract these immunosuppressive mechanisms and amplify tumor-specific immunity are expected to profoundly improve clinical outcomes for HCC patients.
Collapse
Affiliation(s)
- Angela D Pardee
- Department of Medicine; University of Pittsburgh School of Medicine; Pittsburgh, PA USA
| | | |
Collapse
|
10
|
Dusart P, Hallström BM, Renné T, Odeberg J, Uhlén M, Butler LM. A Systems-Based Map of Human Brain Cell-Type Enriched Genes and Malignancy-Associated Endothelial Changes. Cell Rep 2020; 29:1690-1706.e4. [PMID: 31693905 DOI: 10.1016/j.celrep.2019.09.088] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/09/2019] [Accepted: 09/27/2019] [Indexed: 02/02/2023] Open
Abstract
Changes in the endothelium of the cerebral vasculature can contribute to inflammatory, thrombotic, and malignant disorders. The importance of defining cell-type-specific genes and their modification in disease is increasingly recognized. Here, we develop a bioinformatics-based approach to identify normal brain cell-enriched genes, using bulk RNA sequencing (RNA-seq) data from 238 normal human cortex samples from 2 independent cohorts. We compare endothelial cell-enriched gene profiles with astrocyte, oligodendrocyte, neuron, and microglial cell profiles. Endothelial changes in malignant disease are explored using RNA-seq data from 516 lower-grade gliomas and 401 glioblastomas. Lower-grade gliomas appear to be an "endothelial intermediate" between normal brain and glioblastoma. We apply our method for the prediction of glioblastoma-specific endothelial biomarkers, providing potential diagnostic or therapeutic targets. In summary, we provide a roadmap of endothelial cell identity in normal and malignant brain, using a method developed to resolve bulk RNA-seq into constituent cell-type-enriched profiles.
Collapse
Affiliation(s)
- Philip Dusart
- Science for Life Laboratory, Department of Protein Science, Royal Institute of Technology (KTH), 171 21 Stockholm, Sweden; K.G. Jebsen Thrombosis Research and Expertise Centre, Department of Clinical Medicine, The Arctic University of Norway, 9019 Tromsø, Norway
| | - Björn Mikael Hallström
- Science for Life Laboratory, Department of Protein Science, Royal Institute of Technology (KTH), 171 21 Stockholm, Sweden
| | - Thomas Renné
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Jacob Odeberg
- Science for Life Laboratory, Department of Protein Science, Royal Institute of Technology (KTH), 171 21 Stockholm, Sweden; K.G. Jebsen Thrombosis Research and Expertise Centre, Department of Clinical Medicine, The Arctic University of Norway, 9019 Tromsø, Norway; The University Hospital of North Norway (UNN), PB100, 9038 Tromsø, Norway; Department of Hematology, Karolinska University Hospital, 171 77 Stockholm, Sweden
| | - Mathias Uhlén
- Science for Life Laboratory, Department of Protein Science, Royal Institute of Technology (KTH), 171 21 Stockholm, Sweden
| | - Lynn Marie Butler
- Science for Life Laboratory, Department of Protein Science, Royal Institute of Technology (KTH), 171 21 Stockholm, Sweden; K.G. Jebsen Thrombosis Research and Expertise Centre, Department of Clinical Medicine, The Arctic University of Norway, 9019 Tromsø, Norway; Institute for Clinical Chemistry and Laboratory Medicine, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany; Clinical Chemistry and Blood Coagulation Research, Department of Molecular Medicine and Surgery, Karolinska Institute, 171 76 Stockholm, Sweden.
| |
Collapse
|
11
|
Yuan C, Liu Y, Wang T, Sun M, Chen X. Nanomaterials as Smart Immunomodulator Delivery System for Enhanced Cancer Therapy. ACS Biomater Sci Eng 2020; 6:4774-4798. [DOI: 10.1021/acsbiomaterials.0c00804] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Congshan Yuan
- College of Marine Life Science, Ocean University of China, Qingdao 266003, P.R. China
| | - Ya Liu
- College of Marine Life Science, Ocean University of China, Qingdao 266003, P.R. China
| | - Ting Wang
- College of Marine Life Science, Ocean University of China, Qingdao 266003, P.R. China
| | - Mengjie Sun
- College of Marine Life Science, Ocean University of China, Qingdao 266003, P.R. China
| | - Xiguang Chen
- College of Marine Life Science, Ocean University of China, Qingdao 266003, P.R. China
- Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, P.R. China
| |
Collapse
|
12
|
Poropatich K, Dominguez D, Chan WC, Andrade J, Zha Y, Wray B, Miska J, Qin L, Cole L, Coates S, Patel U, Samant S, Zhang B. OX40+ plasmacytoid dendritic cells in the tumor microenvironment promote antitumor immunity. J Clin Invest 2020; 130:3528-3542. [PMID: 32182225 PMCID: PMC7324178 DOI: 10.1172/jci131992] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 03/11/2020] [Indexed: 12/11/2022] Open
Abstract
Plasmacytoid DCs (pDCs), the major producers of type I interferon, are principally recognized as key mediators of antiviral immunity. However, their role in tumor immunity is less clear. Depending on the context, pDCs can promote or suppress antitumor immune responses. In this study, we identified a naturally occurring pDC subset expressing high levels of OX40 (OX40+ pDC) enriched in the tumor microenvironment (TME) of head and neck squamous cell carcinoma. OX40+ pDCs were distinguished by a distinct immunostimulatory phenotype, cytolytic function, and ability to synergize with conventional DCs (cDCs) in generating potent tumor antigen-specific CD8+ T cell responses. Transcriptomically, we found that they selectively utilized EIF2 signaling and oxidative phosphorylation pathways. Moreover, depletion of pDCs in the murine OX40+ pDC-rich tumor model accelerated tumor growth. Collectively, we present evidence of a pDC subset in the TME that favors antitumor immunity.
Collapse
Affiliation(s)
- Kate Poropatich
- Department of Pathology
- Robert H. Lurie Comprehensive Cancer Center, and
| | - Donye Dominguez
- Division of Hematology/Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | | | - Yuanyuan Zha
- Human Immunologic Monitoring Facility, Office of Shared Research Facilities, University of Chicago, Chicago, Illinois, USA
| | - Brian Wray
- Department of Biochemistry and Molecular Genetics
| | - Jason Miska
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lei Qin
- Division of Hematology/Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lisa Cole
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
| | - Sydney Coates
- Head and Neck Surgery, Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Urjeet Patel
- Robert H. Lurie Comprehensive Cancer Center, and
- Head and Neck Surgery, Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Sandeep Samant
- Robert H. Lurie Comprehensive Cancer Center, and
- Head and Neck Surgery, Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Bin Zhang
- Robert H. Lurie Comprehensive Cancer Center, and
- Division of Hematology/Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| |
Collapse
|
13
|
Gu S, Zi J, Han Q, Song C, Ge Z. Elevated TNFRSF4 gene expression is a predictor of poor prognosis in non-M3 acute myeloid leukemia. Cancer Cell Int 2020; 20:146. [PMID: 32390761 PMCID: PMC7197135 DOI: 10.1186/s12935-020-01213-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/15/2020] [Indexed: 01/15/2023] Open
Abstract
Background We used bioinformatic tools to dichotomize 157 non-M3 AML patients from the TCGA dataset based on the presence or absence of TP53 mutations, and screened out a key gene related to TP53 mutation for future analysis. Methods DEGs were analyzed by R package “DESeq2” and then run GSEA, GO enrichment, KEGG pathway and PPI network. Hub genes were selected out according to MCC. Log-rank (Mantel–Cox) test was used for survival analysis. Mann–Whitney U’s nonparametric t test and Fisher’s exact test was used for continuous and categorical variables respectively. p value< 0.05 was considered to be statistical significance. Results TNFRSF4 was final screened out as a key gene. Besides TP53 mutation (p = 0.0118), high TNFRSF4 was also associated with FLT3 mutation (p = 0.0102) and NPM1 mutation (p = 0.0024). Elevated TNFRSF4 was significantly related with intermediate (p = 0.0004) and poor (p = 0.0011) risk stratification as well as relapse statute (p = 0.0099). Patients with elevated TNFRSF4 expression had significantly shorter overall survival (median survival: 2.35 months vs. 21 months, p < 0.0001). Based on our clinical center data, TNFRSF4 expression was significantly higher in non-M3 AML patients than HDs (p = 0.0377) and MDS patients (EB-1, 2; p = 0.0017). Conclusions Elevated TNFRSF4 expression was associated with TP53, FLT3 and NPM1 mutation as well as poor clinical outcome. TNFRSF4 expression was significantly higher in non-M3 AML patients than HDs and MDS (EB-1, 2) patients. TNFRSF4 is need for future functional and mechanistic studies to investigate the role in non-M3 AML.
Collapse
Affiliation(s)
- Siyu Gu
- 1Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210009 Jiangsu China
| | - Jie Zi
- 1Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210009 Jiangsu China
| | - Qi Han
- 1Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210009 Jiangsu China
| | - Chunhua Song
- 2Hershey Medical Center, Pennsylvania State University Medical College, Hershey, PA17033 USA
| | - Zheng Ge
- 1Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210009 Jiangsu China
| |
Collapse
|
14
|
Fu Y, Lin Q, Zhang Z, Zhang L. Therapeutic strategies for the costimulatory molecule OX40 in T-cell-mediated immunity. Acta Pharm Sin B 2020; 10:414-433. [PMID: 32140389 PMCID: PMC7049610 DOI: 10.1016/j.apsb.2019.08.010] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 12/11/2022] Open
Abstract
The T cell co-stimulatory molecule OX40 and its cognate ligand OX40L have attracted broad research interest as a therapeutic target in T cell-mediated diseases. Accumulating preclinical evidence highlights the therapeutic efficacy of both agonist and blockade of the OX40-OX40L interaction. Despite this progress, many questions about the immuno-modulator roles of OX40 on T cell function remain unanswered. In this review we summarize the impact of the OX40-OX40L interaction on T cell subsets, including Th1, Th2, Th9, Th17, Th22, Treg, Tfh, and CD8+ T cells, to gain a comprehensive understanding of anti-OX40 mAb-based therapies. The potential therapeutic application of the OX40-OX40L interaction in autoimmunity diseases and cancer immunotherapy are further discussed; OX40-OX40L blockade may ameliorate autoantigen-specific T cell responses and reduce immune activity in autoimmunity diseases. We also explore the rationale of targeting OX40-OX40L interactions in cancer immunotherapy. Ligation of OX40 with targeted agonist anti-OX40 mAbs conveys activating signals to T cells. When combined with other therapeutic treatments, such as anti-PD-1 or anti-CTLA-4 blockade, cytokines, chemotherapy, or radiotherapy, the anti-tumor activity of agonist anti-OX40 treatment will be further enhanced. These data collectively suggest great potential for OX40-mediated therapies.
Collapse
Affiliation(s)
- Yu Fu
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, College of Polymer Science and Engineering, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Qing Lin
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, College of Polymer Science and Engineering, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Zhirong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, College of Polymer Science and Engineering, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Ling Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, College of Polymer Science and Engineering, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
| |
Collapse
|
15
|
Verma A, Mathur R, Farooque A, Kaul V, Gupta S, Dwarakanath BS. T-Regulatory Cells In Tumor Progression And Therapy. Cancer Manag Res 2019; 11:10731-10747. [PMID: 31920383 PMCID: PMC6935360 DOI: 10.2147/cmar.s228887] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/06/2019] [Indexed: 12/24/2022] Open
Abstract
Regulatory T cells (Tregs) are important members of the immune system regulating the host responses to infection and neoplasms. Tregs prevent autoimmune disorders by protecting the host-cells from an immune response, related to the peripheral tolerance. However, tumor cells use Tregs as a shield to protect themselves against anti-tumor immune response. Thus, Tregs are a hurdle in achieving the complete potential of anti-cancer therapies including immunotherapy. This has prompted the development of novel adjuvant therapies that obviate their negative effects thereby enhancing the therapeutic efficacy. Our earlier studies have shown the efficacy of the glycolytic inhibitor, 2-deoxy-D-glucose (2-DG) by reducing the induced Tregs pool and enhance immune stimulation as well as local tumor control. These findings have suggested its potential for enhancing the efficacy of immunotherapy, besides radiotherapy and chemotherapy. This review provides a brief account of the current status of Tregs as a component of the immune-biology of tumors and various preclinical and clinical strategies pursued to obviate the limitations imposed by them in achieving therapeutic efficacy.
Collapse
Affiliation(s)
- Amit Verma
- Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD, USA
| | - Rohit Mathur
- Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Vandana Kaul
- Division of Abdominal Transplantation, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Seema Gupta
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA
| | | |
Collapse
|
16
|
Mazzarella L, Duso BA, Trapani D, Belli C, D'Amico P, Ferraro E, Viale G, Curigliano G. The evolving landscape of ‘next-generation’ immune checkpoint inhibitors: A review. Eur J Cancer 2019; 117:14-31. [DOI: 10.1016/j.ejca.2019.04.035] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/23/2019] [Accepted: 04/26/2019] [Indexed: 12/14/2022]
|
17
|
Kumar P, Bhattacharya P, Prabhakar BS. A comprehensive review on the role of co-signaling receptors and Treg homeostasis in autoimmunity and tumor immunity. J Autoimmun 2018; 95:77-99. [PMID: 30174217 PMCID: PMC6289740 DOI: 10.1016/j.jaut.2018.08.007] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/22/2018] [Accepted: 08/26/2018] [Indexed: 12/22/2022]
Abstract
The immune system ensures optimum T-effector (Teff) immune responses against invading microbes and tumor antigens while preventing inappropriate autoimmune responses against self-antigens with the help of T-regulatory (Treg) cells. Thus, Treg and Teff cells help maintain immune homeostasis through mutual regulation. While Tregs can contribute to tumor immune evasion by suppressing anti-tumor Teff response, loss of Treg function can result in Teff responses against self-antigens leading to autoimmune disease. Thus, loss of homeostatic balance between Teff/Treg cells is often associated with both cancer and autoimmunity. Co-stimulatory and co-inhibitory receptors, collectively known as co-signaling receptors, play an indispensable role in the regulation of Teff and Treg cell expansion and function and thus play critical roles in modulating autoimmune and anti-tumor immune responses. Over the past three decades, considerable efforts have been made to understand the biology of co-signaling receptors and their role in immune homeostasis. Mutations in co-inhibitory receptors such as CTLA4 and PD1 are associated with Treg dysfunction, and autoimmune diseases in mice and humans. On the other hand, growing tumors evade immune surveillance by exploiting co-inhibitory signaling through expression of CTLA4, PD1 and PDL-1. Immune checkpoint blockade (ICB) using anti-CTLA4 and anti-PD1 has drawn considerable attention towards co-signaling receptors in tumor immunology and created renewed interest in studying other co-signaling receptors, which until recently have not been as well studied. In addition to co-inhibitory receptors, co-stimulatory receptors like OX40, GITR and 4-1BB have also been widely implicated in immune homeostasis and T-cell stimulation, and use of agonistic antibodies against OX40, GITR and 4-1BB has been effective in causing tumor regression. Although ICB has seen unprecedented success in cancer treatment, autoimmune adverse events arising from ICB due to loss of Treg homeostasis poses a major obstacle. Herein, we comprehensively review the role of various co-stimulatory and co-inhibitory receptors in Treg biology and immune homeostasis, autoimmunity, and anti-tumor immunity. Furthermore, we discuss the autoimmune adverse events arising upon targeting these co-signaling receptors to augment anti-tumor immune responses.
Collapse
Affiliation(s)
- Prabhakaran Kumar
- Department of Microbiology and Immunology, University of Illinois-College of Medicine, Chicago, IL, USA
| | - Palash Bhattacharya
- Department of Microbiology and Immunology, University of Illinois-College of Medicine, Chicago, IL, USA
| | - Bellur S Prabhakar
- Department of Microbiology and Immunology, University of Illinois-College of Medicine, Chicago, IL, USA; Department of Ophthalmology, Associate Dean for Technological Innovation and Training, University of Illinois College of Medicine, Room E-705, (M/C 790), 835 S. Wolcott Ave, Chicago, IL, 60612, USA.
| |
Collapse
|
18
|
Ravanetti L, Dijkhuis A, Dekker T, Sabogal Pineros YS, Ravi A, Dierdorp BS, Erjefält JS, Mori M, Pavlidis S, Adcock IM, Rao NL, Lutter R. IL-33 drives influenza-induced asthma exacerbations by halting innate and adaptive antiviral immunity. J Allergy Clin Immunol 2018; 143:1355-1370.e16. [PMID: 30316823 DOI: 10.1016/j.jaci.2018.08.051] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 07/12/2018] [Accepted: 08/28/2018] [Indexed: 01/16/2023]
Abstract
BACKGROUND Influenza virus triggers severe asthma exacerbations for which no adequate treatment is available. It is known that IL-33 levels correlate with exacerbation severity, but its role in the immunopathogenesis of exacerbations has remained elusive. OBJECTIVE We hypothesized that IL-33 is necessary to drive asthma exacerbations. We intervened with the IL-33 cascade and sought to dissect its role, also in synergy with thymic stromal lymphopoietin (TSLP), in airway inflammation, antiviral activity, and lung function. We aimed to unveil the major source of IL-33 in the airways and IL-33-dependent mechanisms that underlie severe asthma exacerbations. METHODS Patients with mild asthma were experimentally infected with rhinovirus. Mice were chronically exposed to house dust mite extract and then infected with influenza to resemble key features of exacerbations in human subjects. Interventions included the anti-IL-33 receptor ST2, anti-TSLP, or both. RESULTS We identified bronchial ciliated cells and type II alveolar cells as a major local source of IL-33 during virus-driven exacerbation in human subjects and mice, respectively. By blocking ST2, we demonstrated that IL-33 and not TSLP was necessary to drive exacerbations. IL-33 enhanced airway hyperresponsiveness and airway inflammation by suppressing innate and adaptive antiviral responses and by instructing epithelial cells and dendritic cells of house dust mite-sensitized mice to dampen IFN-β expression and prevent the TH1-promoting dendritic cell phenotype. IL-33 also boosted luminal NETosis and halted cytolytic antiviral activities but did not affect the TH2 response. CONCLUSION Interventions targeting the IL-33/ST2 axis could prove an effective acute short-term therapy for virus-induced asthma exacerbations.
Collapse
Affiliation(s)
- Lara Ravanetti
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands.
| | - Annemiek Dijkhuis
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| | - Tamara Dekker
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| | - Yanaika S Sabogal Pineros
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| | - Abilash Ravi
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| | - Barbara S Dierdorp
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| | - Jonas S Erjefält
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Michiko Mori
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Stelios Pavlidis
- Airway Disease Section, National Heart & Lung Institute, Imperial College London, Royal Brompton Campus, London, United Kingdom
| | - Ian M Adcock
- Airway Disease Section, National Heart & Lung Institute, Imperial College London, Royal Brompton Campus, London, United Kingdom
| | - Navin L Rao
- Immunology Discovery, Janssen Research and Development, San Diego, Calif
| | - René Lutter
- Department of Experimental Immunology, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands; Department of Respiratory Medicine, Amsterdam University Medical Centers/University of Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
19
|
Myeloid-restricted ablation of Shp2 restrains melanoma growth by amplifying the reciprocal promotion of CXCL9 and IFN-γ production in tumor microenvironment. Oncogene 2018; 37:5088-5100. [PMID: 29795405 DOI: 10.1038/s41388-018-0337-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 04/18/2018] [Accepted: 05/07/2018] [Indexed: 01/04/2023]
Abstract
The Src homology 2 domain-containing protein tyrosine phosphatase 2 (Shp2) is generally considered to be an oncogene owing to its ability in enhancing the malignancy of multiple types of tumor cells; however, its role in modulating tumor immunity remains largely elusive. Here, we reported that myeloid-restricted ablation of Shp2 suppressed melanoma growth. Mechanistically, loss of Shp2 potentiates macrophage production of CXCL9 in response to IFN-γ and tumor cell-derived cytokines, thereby facilitating the tumor infiltration of IFN-γ-producing T cells that could in turn support CXCL9 production within tumor microenvironment. Collectively, our findings highlight a causative role of myeloid Shp2 in dampening T cell-mediated antitumor immunity by restraining the macrophage/CXCL9-T cell/IFN-γ feedback loop. Thus, targeting macrophage Shp2 may help to create a Th1-dominant tumor immune microenvironment.
Collapse
|
20
|
Massa C, Seliger B. The tumor microenvironment: Thousand obstacles for effector T cells. Cell Immunol 2017; 343:103730. [PMID: 29249298 DOI: 10.1016/j.cellimm.2017.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 12/04/2017] [Accepted: 12/07/2017] [Indexed: 12/24/2022]
Abstract
The immune system is endowed with the capability to recognize and destroy transformed cells, but even in the presence of an immune infiltrate many tumors do progress. In the last decades new discoveries have shed light into (some of) the underlying mechanisms. Immune effector cells are not only under the influence of immune suppressive cell subsets, but also intrinsically regulated by immune check point molecules that under physiological condition avoid attach of healthy tissue. Moreover, tumor cells are modifying the surrounding microenvironment through secretion of immune modulators as well as via their own metabolism, thus further impairing the development of immune effector functions. Different approaches are currently being evaluated in the clinic to overcome those regulatory mechanisms and to unleash effector T cells.
Collapse
Affiliation(s)
- Chiara Massa
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Barbara Seliger
- Institute for Medical Immunology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
| |
Collapse
|
21
|
Ding Q, Lu P, Xia Y, Ding S, Fan Y, Li X, Han P, Liu J, Tian D, Liu M. CXCL9: evidence and contradictions for its role in tumor progression. Cancer Med 2016; 5:3246-3259. [PMID: 27726306 PMCID: PMC5119981 DOI: 10.1002/cam4.934] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/06/2016] [Accepted: 09/06/2016] [Indexed: 01/01/2023] Open
Abstract
Chemokines are a group of low molecular weight peptides. Their major function is the recruitment of leukocytes to inflammation sites, but they also play a key role in tumor growth, angiogenesis, and metastasis. In the last few years, accumulated experimental evidence supports that monokine induced by interferon (IFN)‐gamma (CXCL9), a member of CXC chemokine family and known to attract CXCR3‐ (CXCR3‐A and CXCR3‐B) T lymphocytes, is involved in the pathogenesis of a variety of physiologic diseases during their initiation and their maintenance. This review for the first time presents the most comprehensive summary for the role of CXCL9 in different types of tumors, and demonstrates its contradictory role of CXCL9 in tumor progression. Altogether, this is a useful resource for researchers investigating therapeutic opportunities for cancer.
Collapse
Affiliation(s)
- Qiang Ding
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Panpan Lu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Yujia Xia
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Shuping Ding
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Yuhui Fan
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Xin Li
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Ping Han
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Jingmei Liu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Mei Liu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| |
Collapse
|
22
|
Bender C, Hassel JC, Enk A. Immunotherapy of Melanoma. Oncol Res Treat 2016; 39:369-76. [PMID: 27259558 DOI: 10.1159/000446716] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 05/11/2016] [Indexed: 11/19/2022]
Abstract
Arising from melanocytes in skin, mucosal membranes, eye, and meninges, melanoma is a tumor that has been associated with poor prognosis in advanced disease stages. Given the poor response to chemotherapy and radiation therapy, new treatment approaches with targeted therapy, immunotherapy, and adoptive T-cell therapy have revolutionized the standard of care for patients with advanced melanoma. This review provides a short overview of past, present, and future immunotherapeutic approaches and their limitations, with a focus on new combination agents in early clinical trials.
Collapse
Affiliation(s)
- Carolin Bender
- Department of Dermatology and National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | | | | |
Collapse
|
23
|
Aspeslagh S, Postel-Vinay S, Rusakiewicz S, Soria JC, Zitvogel L, Marabelle A. Rationale for anti-OX40 cancer immunotherapy. Eur J Cancer 2016; 52:50-66. [DOI: 10.1016/j.ejca.2015.08.021] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 08/22/2015] [Indexed: 02/08/2023]
|
24
|
Schlößer HA, Theurich S, Shimabukuro-Vornhagen A, Holtick U, Stippel DL, von Bergwelt-Baildon M. Overcoming tumor-mediated immunosuppression. Immunotherapy 2015; 6:973-88. [PMID: 25341119 DOI: 10.2217/imt.14.58] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mechanisms of tumor-mediated immunosuppression have been described for several solid and hematological tumors. Tumors inhibit immune responses by attraction of immunosuppressive lymphocytic populations, secretion of immunosuppressive cytokines or expression of surface molecules, which inhibit immune responses by induction of anergy or apoptosis in tumor-infiltrating lymphocytes. This tumor-mediated immunosuppression represents a major obstacle to many immunotherapeutic or conventional therapeutic approaches. In this review we discuss how tumor-mediated immunosuppression interferes with different immunotherapeutic approaches and then give an overview of strategies to overcome it. Particular emphasis is placed on agents or approaches already transferred into clinical settings. Finally the success of immune checkpoint inhibitors targeting CTLA-4 or the PD-1 pathway highlights the enormous therapeutic potential of an effective overcoming of tumor-mediated immunosuppression.
Collapse
|
25
|
Glioblastoma Circulating Cells: Reality, Trap or Illusion? Stem Cells Int 2015; 2015:182985. [PMID: 26078762 PMCID: PMC4452868 DOI: 10.1155/2015/182985] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/19/2015] [Indexed: 01/08/2023] Open
Abstract
Metastases are the hallmark of cancer. This event is in direct relationship with the ability of cancer cells to leave the tumor mass and travel long distances within the bloodstream and/or lymphatic vessels. Glioblastoma multiforme (GBM), the most frequent primary brain neoplasm, is mainly characterized by a dismal prognosis. The usual fatal issue for GBM patients is a consequence of local recurrence that is observed most of the time without any distant metastases. However, it has recently been documented that GBM cells could be isolated from the bloodstream in several studies. This observation raises the question of the possible involvement of glioblastoma-circulating cells in GBM deadly recurrence by a “homing metastasis” process. Therefore, we think it is important to review the already known molecular mechanisms underlying circulating tumor cells (CTC) specific properties, emphasizing their epithelial to mesenchymal transition (EMT) abilities and their possible involvement in tumor initiation. The idea is here to review these mechanisms and speculate on how relevant they could be applied in the forthcoming battles against GBM.
Collapse
|
26
|
Bertino G, Demma S, Ardiri A, Proiti M, Malaguarnera G, Bertino N, Malaguarnera M, Malaguarnera M. The immune system in hepatocellular carcinoma and potential new immunotherapeutic strategies. BIOMED RESEARCH INTERNATIONAL 2015; 2015:731469. [PMID: 25893197 PMCID: PMC4393929 DOI: 10.1155/2015/731469] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 12/11/2014] [Accepted: 12/12/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Hepatocellular carcinoma is a major health problem worldwide and the third most common cause of cancer-related death. HCC treatment decisions are complex and dependent upon tumor staging. Several molecular targeted agents have been evaluated in clinical trials in advanced HCC. Despite of only modest objective response rates according to the Response Evaluation Criteria in Solid Tumors, several studies showed encouraging results in terms of prolongation of the time to progression, disease stabilization, and survival. Cellular immunotherapy would improve the immune state and has potential in enhancing the therapeutic outcome for HCC patients. MATERIALS AND METHODS A search of the literature was made using cancer literature, the PubMed, Scopus, and Web of Science (WOS) database for the following keywords: "hepatocellular carcinoma," "molecular hepatocarcinogenesis," "targeted therapy," "molecular immunological targets," "tumour-associated antigens," "Tregs," "MDSCs," "immunotherapy." DISCUSSION AND CONCLUSION Treatment strategies combining blockade of immunoregulatory cell types such as Tregs and MDSCs and of inhibitory receptors, with vaccine-induced activation of TAA-specific T cells, may be necessary to achieve the most effective therapeutic antitumour activity in HCC. In the future, new therapeutic options will be represented by a blend of immunotherapy-like vaccines and T-cell modulators, supplemented by molecularly targeted inhibitors of tumor signaling pathways.
Collapse
Affiliation(s)
- Gaetano Bertino
- Department of Medical and Pediatric Sciences, Hepatology Unit, University of Catania, Policlinic, Via S. Sofia No. 78, 95123 Catania, Italy
| | - Shirin Demma
- Department of Medical and Pediatric Sciences, Hepatology Unit, University of Catania, Policlinic, Via S. Sofia No. 78, 95123 Catania, Italy
| | - Annalisa Ardiri
- Department of Medical and Pediatric Sciences, Hepatology Unit, University of Catania, Policlinic, Via S. Sofia No. 78, 95123 Catania, Italy
| | - Maria Proiti
- Department of Medical and Pediatric Sciences, Hepatology Unit, University of Catania, Policlinic, Via S. Sofia No. 78, 95123 Catania, Italy
| | - Giulia Malaguarnera
- Research Centre “The Great Senescence”, University of Catania, Cannizzaro Hospital, Via Messina No. 829, 95100 Catania, Italy
| | - Nicoletta Bertino
- Faculty of Pharmacy, University of Catania, Viale Andrea Doria No. 6, 95123 Catania, Italy
- Faculty of Pharmacy, University of Catania, University of Catania Policlinic, Via S. Sofia No. 78, 95123 Catania, Italy
| | - Mariano Malaguarnera
- Department of Medical and Pediatric Science, Research Centre “The Great Senescence”, University of Catania, Cannizzaro Hospital, Via Messina No. 829, 95100 Catania, Italy
| | - Michele Malaguarnera
- Research Centre “The Great Senescence”, University of Catania, Cannizzaro Hospital, Via Messina No. 829, 95100 Catania, Italy
- International Ph.D. Program in Neuropharmacology, University of Catania, Cannizzaro Hospital, Via Messina No. 829, 95100 Catania, Italy
| |
Collapse
|
27
|
Cuestas ML, Oubiña JR, Mathet VL. Hepatocellular carcinoma and multidrug resistance: Past, present and new challenges for therapy improvement. World J Pharmacol 2015; 4:96-116. [DOI: 10.5497/wjp.v4.i1.96] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/02/2014] [Accepted: 12/01/2014] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most frequent form of liver cancer and the third most common cause of cancer-related death in the world. The main risk factor worldwide for this type of malignancy is chronic hepatitis caused by hepatitis B virus and hepatitis C virus infections. Advances in early detection and treatment have improved life expectancy of patients with HCC. However, this disorder remains as a disease with poor prognosis. In fact, epidemiological studies have revealed that there is an 8-mo median survival rate in patients, approximately 20% of whom survive one year while only 5% remain alive after three years. Additionally, HCC is particularly difficult to treat because of its high recurrence rate, and its resistance to conventional chemotherapy is due, among other mechanisms, to several members of the ATP-Binding Cassette protein family involved in drug transport being overexpressed. Fortunately, there is evidence that these patients may benefit from alternative molecular-targeted therapies. This manuscript intends to provide further insight into the etiology and molecular mechanisms related to HCC development and the latest therapeutic approaches to treat this malignancy. The development of effective delivery systems of antitumor drugs able to target the liver parenchyma is also assessed. Finally, the prospects in the development of more efficient drug therapies to overcome multidrug resistance are also examined.
Collapse
|
28
|
Linch SN, McNamara MJ, Redmond WL. OX40 Agonists and Combination Immunotherapy: Putting the Pedal to the Metal. Front Oncol 2015; 5:34. [PMID: 25763356 PMCID: PMC4329814 DOI: 10.3389/fonc.2015.00034] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/30/2015] [Indexed: 12/24/2022] Open
Abstract
Recent studies have highlighted the therapeutic efficacy of immunotherapy, a class of cancer treatments that utilize the patient’s own immune system to destroy cancerous cells. Within a tumor the presence of a family of negative regulatory molecules, collectively known as “checkpoint inhibitors,” can inhibit T cell function to suppress anti-tumor immunity. Checkpoint inhibitors, such as CTLA-4 and PD-1, attenuate T cell proliferation and cytokine production. Targeted blockade of CTLA-4 or PD-1 with antagonist monoclonal antibodies (mAbs) releases the “brakes” on T cells to boost anti-tumor immunity. Generating optimal “killer” CD8 T cell responses also requires T cell receptor activation plus co-stimulation, which can be provided through ligation of tumor necrosis factor receptor family members, including OX40 (CD134) and 4-1BB (CD137). OX40 is of particular interest as treatment with an activating (agonist) anti-OX40 mAb augments T cell differentiation and cytolytic function leading to enhanced anti-tumor immunity against a variety of tumors. When used as single agents, these drugs can induce potent clinical and immunologic responses in patients with metastatic disease. However, each of these agents only benefits a subset of patients, highlighting the critical need for more effective combinatorial therapeutic strategies. In this review, we will discuss our current understanding of the cellular and molecular mechanisms by which OX40 agonists synergize with checkpoint inhibitor blockade to augment T cell-mediated anti-tumor immunity and the potential opportunities for clinical translation of combinatorial immunotherapeutic strategies.
Collapse
Affiliation(s)
- Stefanie N Linch
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Providence Portland Medical Center , Portland, OR , USA
| | - Michael J McNamara
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Providence Portland Medical Center , Portland, OR , USA
| | - William L Redmond
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Providence Portland Medical Center , Portland, OR , USA
| |
Collapse
|
29
|
Abstract
Metastases arise from residual disseminated tumour cells (DTCs). This can happen years after primary tumour treatment because residual tumour cells can enter dormancy and evade therapies. As the biology of minimal residual disease seems to diverge from that of proliferative lesions, understanding the underpinnings of this new cancer biology is key to prevent metastasis. Analysis of approximately 7 years of literature reveals a growing focus on tumour and normal stem cell quiescence, extracellular and stromal microenvironments, autophagy and epigenetics as mechanisms that dictate tumour cell dormancy. In this Review, we attempt to integrate this information and highlight both the weaknesses and the strengths in the field to provide a framework to understand and target this crucial step in cancer progression.
Collapse
Affiliation(s)
- María Soledad Sosa
- Division of Hematology and Oncology, Department of Medicine, Department of Otolaryngology, Tisch Cancer Institute
- Black Family Stem Cell Institute, Ichan School of Medicine at Mount Sinai, New York NY 10029, USA
| | - Paloma Bragado
- Division of Hematology and Oncology, Department of Medicine, Department of Otolaryngology, Tisch Cancer Institute
- Black Family Stem Cell Institute, Ichan School of Medicine at Mount Sinai, New York NY 10029, USA
| | - Julio A. Aguirre-Ghiso
- Division of Hematology and Oncology, Department of Medicine, Department of Otolaryngology, Tisch Cancer Institute
- Black Family Stem Cell Institute, Ichan School of Medicine at Mount Sinai, New York NY 10029, USA
| |
Collapse
|
30
|
Bertino G, Demma S, Ardiri A, Proiti M, Malaguarnera G, Bertino N, Malaguarnera M, Malaguarnera M. Hepatocellular carcinoma: novel molecular targets in carcinogenesis for future therapies. BIOMED RESEARCH INTERNATIONAL 2014; 2014:203693. [PMID: 25089265 PMCID: PMC4096380 DOI: 10.1155/2014/203693] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 05/29/2014] [Accepted: 05/30/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hepatocellular carcinoma is one of the most common and lethal malignant tumors worldwide. Over the past 15 years, the incidence of HCC has more than doubled. Due to late diagnosis and/or advanced underlying liver cirrhosis, only limited treatment options with marginal clinical benefit are available in up to 70% of patients. During the last decades, no effective conventional cytotoxic systemic therapy was available contributing to the dismal prognosis in patients with HCC. A better knowledge of molecular hepatocarcinogenesis provides today the opportunity for targeted therapy. MATERIALS AND METHODS A search of the literature was made using cancer literature, the PubMed, Scopus, and Web of Science (WOS) database for the following keywords: "hepatocellular carcinoma," "molecular hepatocarcinogenesis," "targeted therapy," and "immunotherapy." DISCUSSION AND CONCLUSION Treatment decisions are complex and dependent upon tumor staging, presence of portal hypertension, and the underlying degree of liver dysfunction. The knowledge of molecular hepatocarcinogenesis broadened the horizon for patients with advanced HCC. During the last years, several molecular targeted agents have been evaluated in clinical trials in advanced HCC. In the future, new therapeutic options will be represented by a blend of immunotherapy-like vaccines and T-cell modulators, supplemented by molecularly targeted inhibitors of tumor signaling pathways.
Collapse
Affiliation(s)
- Gaetano Bertino
- Hepatology Unit, Department of Medical and Pediatric Sciences, University of Catania, Policlinic, Via Santa Sofia No. 78, 95123 Catania, Italy
| | - Shirin Demma
- Hepatology Unit, Department of Medical and Pediatric Sciences, University of Catania, Policlinic, Via Santa Sofia No. 78, 95123 Catania, Italy
| | - Annalisa Ardiri
- Hepatology Unit, Department of Medical and Pediatric Sciences, University of Catania, Policlinic, Via Santa Sofia No. 78, 95123 Catania, Italy
| | - Maria Proiti
- Hepatology Unit, Department of Medical and Pediatric Sciences, University of Catania, Policlinic, Via Santa Sofia No. 78, 95123 Catania, Italy
| | - Giulia Malaguarnera
- Research Centre “The Great Senescence”, University of Catania, Via Messina No. 829, 95126 Catania, Italy
| | - Nicoletta Bertino
- Faculty of Pharmacy, University of Catania, Viale Andrea Doria No. 6, 95123 Catania, Italy
| | - Michele Malaguarnera
- Research Centre “The Great Senescence”, University of Catania, Via Messina No. 829, 95126 Catania, Italy
| | - Mariano Malaguarnera
- Research Centre “The Great Senescence”, University of Catania, Via Messina No. 829, 95126 Catania, Italy
| |
Collapse
|
31
|
Bertino G, Di Carlo I, Ardiri A, Calvagno GS, Demma S, Malaguarnera G, Bertino N, Malaguarnera M, Toro A, Malaguarnera M. Systemic therapies in hepatocellular carcinoma: present and future. Future Oncol 2014; 9:1533-48. [PMID: 24106903 DOI: 10.2217/fon.13.171] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is now the third leading cause of cancer deathsworldwide and is generally presented at an advanced stage, limiting patients' quality of life. The conventional cytotoxic systemic therapy has proved to be ineffective in HCC, since its induction several decades ago. Today it is possible to use our knowledge of molecular hepatocarcinogenesis to provide a targeted therapy. Sorafenib has demonstrated large improvements in overall survival in HCC. This review describes the molecular mechanisms and potential therapeutic targets, focusing on sorafenib, sunitinib, tivantinib, antiangiogenic agents, and current and future immunotherapies. Thus, it will be necessary in the future to classify HCCs into subgroups according to their genomic and proteomic profiling. The identification of key molecules/receptors/signaling pathways and the assessment of their relevance as potential targets will be the main future challenge potentially influencing response to therapy. Defining molecular targeted agents that are effective for a specific HCC subgroup will hopefully lead to personalized therapy.
Collapse
Affiliation(s)
- Gaetano Bertino
- Hepatology Unit - Department of Medical & Pediatric Science, University of Catania Policlinic, Via S Sofia 78, 95123, Catania, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Schaer DA, Hirschhorn-Cymerman D, Wolchok JD. Targeting tumor-necrosis factor receptor pathways for tumor immunotherapy. J Immunother Cancer 2014; 2:7. [PMID: 24855562 PMCID: PMC4030310 DOI: 10.1186/2051-1426-2-7] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 03/13/2014] [Indexed: 02/08/2023] Open
Abstract
With the success of ipilimumab and promise of programmed death-1 pathway-targeted agents, the field of tumor immunotherapy is expanding rapidly. Newer targets for clinical development include select members of the tumor necrosis factor receptor (TNFR) family. Agonist antibodies to these co-stimulatory molecules target both T and B cells, modulating T-cell activation and enhancing immune responses. In vitro and in vivo preclinical data have provided the basis for continued development of 4-1BB, OX40, glucocorticoid-induced TNFR-related gene, herpes virus entry mediator, and CD27 as potential therapies for patients with cancer. In this review, we summarize the immune response to tumors, consider preclinical and early clinical data on select TNFR family members, discuss potential translational challenges and suggest possible combination therapies with the aim of inducing durable antitumor responses.
Collapse
Affiliation(s)
- David A Schaer
- Swim Across America Laboratory, Immunology Program, Sloan-Kettering Institute for Cancer Research, New York, NY 10065, USA.,Current address: Department of Cancer Immunobiology, ImClone Systems, a wholly-owned subsidiary of Eli Lilly & Co, New York, NY 10016, USA
| | - Daniel Hirschhorn-Cymerman
- Swim Across America Laboratory, Immunology Program, Sloan-Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Jedd D Wolchok
- Swim Across America Laboratory, Immunology Program, Sloan-Kettering Institute for Cancer Research, New York, NY 10065, USA.,Weill Cornell Medical College, New York, NY 10065, USA.,Ludwig Collaborative Lab, New York, NY 10065, USA.,Ludwig Center for Cancer Immunotherapy at Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| |
Collapse
|
33
|
Guo Z, Wang X, Cheng D, Xia Z, Luan M, Zhang S. PD-1 blockade and OX40 triggering synergistically protects against tumor growth in a murine model of ovarian cancer. PLoS One 2014; 9:e89350. [PMID: 24586709 PMCID: PMC3937343 DOI: 10.1371/journal.pone.0089350] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 01/20/2014] [Indexed: 12/15/2022] Open
Abstract
The co-inhibitory receptor Programmed Death-1 (PD-1) curtails immune responses and prevent autoimmunity, however, tumors exploit this pathway to escape from immune destruction. The co-stimulatory receptor OX40 is upregulated on T cells following activation and increases their clonal expansion, survival and cytokine production when engaged. Although antagonistic anti-PD-1 or agonistic anti-OX40 antibodies can promote the rejection of several murine tumors, some poorly immunogenic tumors were refractory to this treatment. In the present study, we evaluated the antitumor effects and mechanisms of combinatorial PD-1 blockade and OX40 triggering in a murine ID8 ovarian cancer model. Although individual anti-PD-1 or OX40 mAb treatment was ineffective in tumor protection against 10-day established ID8 tumor, combined anti-PD-1/OX40 mAb treatment markedly inhibited tumor outgrowth with 60% of mice tumor free 90 days after tumor inoculation. Tumor protection was associated with a systemic immune response with memory and antigen specificity and required CD4(+) cells and CD8(+) T cells. The anti-PD-1/OX40 mAb treatment increased CD4(+) and CD8(+) cells and decreased immunosuppressive CD4(+)FoxP3(+) regulatory T (Treg) cells and CD11b(+)Gr-1(+) myeloid suppressor cells (MDSC), giving rise to significantly higher ratios of both effector CD4(+) and CD8(+) cells to Treg and MDSC in peritoneal cavity; Quantitative RT-PCR data further demonstrated the induction of a local immunostimulatory milieu by anti-PD-1/OX40 mAb treatment. The splenic CD8(+) T cells from combined mAb treated mice produced high levels of IFN-γ upon tumor antigen stimulation and exhibited antigen-specific cytolytic activity. To our knowledge, this is the first study testing the antitumor effects of combined anti-PD-1/OX40 mAb in a murine ovarian cancer model, and our results provide a rationale for clinical trials evaluating ovarian cancer immunotherapy using this combination of mAb.
Collapse
MESH Headings
- Animals
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal/pharmacology
- Antigens, Neoplasm/immunology
- Antineoplastic Agents/administration & dosage
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Cytotoxicity, Immunologic/drug effects
- Disease Models, Animal
- Epitopes, T-Lymphocyte
- Female
- Immunotherapy
- Mice
- Myeloid Cells/drug effects
- Myeloid Cells/immunology
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/mortality
- Ovarian Neoplasms/pathology
- Programmed Cell Death 1 Receptor/antagonists & inhibitors
- Programmed Cell Death 1 Receptor/metabolism
- Receptors, OX40/agonists
- Receptors, OX40/metabolism
- T-Lymphocyte Subsets/drug effects
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
- Tumor Burden
- Tumor Microenvironment/drug effects
- Tumor Microenvironment/immunology
Collapse
Affiliation(s)
- Zhiqiang Guo
- Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, ShenYang, China
- * E-mail: (ZG); (SZ)
| | - Xin Wang
- Department of Gynecology and Obstetrics, No. 306 Hospital of PLA, Beijing, China
| | - Dali Cheng
- Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, ShenYang, China
| | - Zhijun Xia
- Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, ShenYang, China
| | - Meng Luan
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, China Medical University, Shen Yang, China
| | - Shulan Zhang
- Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, ShenYang, China
- * E-mail: (ZG); (SZ)
| |
Collapse
|
34
|
Intratumoral CD4+ T lymphodepletion sensitizes poorly immunogenic melanomas to immunotherapy with an OX40 agonist. J Invest Dermatol 2014; 134:1884-1892. [PMID: 24468748 DOI: 10.1038/jid.2014.42] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 12/08/2013] [Accepted: 12/23/2013] [Indexed: 01/08/2023]
Abstract
Previous studies have shown that the antitumor effects of OX40 agonists depend on the immunogenicity of the tumor and that poorly immunogenic tumors such as B16F10 melanomas do not respond to OX40 agonist treatment. In this study, we have shown that intratumoral CD4+ T lymphodepletion sensitized poorly immunogenic B16F10 melanomas to immunotherapy with an OX40 agonist. CD4+ T lymphodepletion dramatically altered the tumor immune microenvironment, making it more susceptible to the antitumor effects of an OX40 agonist by enhancing the accumulation of CD8+ T cells and natural killer (NK) cells in tumor tissue. However, unexpectedly, the number of CD11b+ Gr-1(+) myeloid-derived suppressor cells (MDSCs) within tumor tissues also significantly increased as a result of CD4+ T lymphodepletion. As a countermeasure against CD8+ T-cell accumulation, CCR2-positive CD11b+ Gr-1(int) (monocytic) MDSCs predominantly increased. Treatment with an OX40 agonist under CD4+ T lymphodepletion neither reduced MDSCs nor increased CD8+ T cells and NK cells, but further enhanced the expression of cytotoxic molecules from tumor-infiltrating effector cells. Our results suggest that combined immunotherapy using both an OX40 agonist and CD4+ T lymphodepletion could be a promising therapeutic strategy for poorly immunogenic tumors and might be more effective if further combined with a therapeutic strategy targeting MDSCs.
Collapse
|
35
|
Masuda Y, Inoue H, Ohta H, Miyake A, Konishi M, Nanba H. Oral administration of soluble β-glucans extracted from Grifola frondosa induces systemic antitumor immune response and decreases immunosuppression in tumor-bearing mice. Int J Cancer 2013; 133:108-19. [PMID: 23280601 DOI: 10.1002/ijc.27999] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 11/07/2012] [Accepted: 11/22/2012] [Indexed: 12/26/2022]
Abstract
Maitake D (MD)-Fraction is a highly purified soluble β-glucan derived from Grifola frondosa (an oriental edible mushroom). Intraperitoneal (i.p.) injection of MD-Fraction has been reported to inhibit tumor growth via enhancement of the host immune system. In this study, we demonstrated that oral administration of MD-Fraction as well as i.p. injection significantly inhibited tumor growth in murine tumor models. After oral administration, MD-Fraction was not transferred to the blood in its free form but was captured by antigen-presenting cells such as macrophages and dendritic cells (DCs) present in the Peyer's patch. The captured MD-Fraction was then transported to the spleen, thereby inducing the systemic immune response. Our study showed that MD-Fraction directly induced DC maturation via a C-type lectin receptor dectin-1 pathway. The therapeutic response of orally administered MD-Fraction was associated with (i) induced systemic tumor-antigen specific T cell response via dectin-1-dependent activation of DCs, (ii) increased infiltration of the activated T cells into the tumor and (iii) decreased number of tumor-caused immunosuppressive cells such as regulatory T cells and myeloid-derived suppressor cells. Our preclinical study suggests that MD-Fraction is a useful oral therapeutic agent in the management of patients with cancer.
Collapse
Affiliation(s)
- Yuki Masuda
- Department of Microbial Chemistry, Kobe Pharmaceutical University, 4-19-1, Motoyama-kitamachi, Higashinada-ku, Kobe, 658-8558, Japan.
| | | | | | | | | | | |
Collapse
|
36
|
Gough MJ, Killeen N, Weinberg AD. Targeting macrophages in the tumour environment to enhance the efficacy of αOX40 therapy. Immunology 2012; 136:437-47. [PMID: 22578109 DOI: 10.1111/j.1365-2567.2012.03600.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The treatment of high-grade tumours must consider a tumour environment dominated by cells that support cancer growth. In addition to directing angiogenesis and invasion, alternatively activated macrophages in the tumour provide protection from adaptive immunity and permit tumour growth. Agonist antibodies to the tumour necrosis factor receptor family member OX40 are an effective therapy for cancer in a range of murine models; however, as with many immune therapies, αOX40 therapy is less effective as the tumour grows and develops an immune suppressive environment. We demonstrate that αOX40 directly activates T cells and that this T-cell activation alters macrophage differentiation in the tumour environment. We demonstrate that macrophages in the tumour limit the efficacy of αOX40 therapy, and that combining αOX40 therapy with inhibitors of arginase significantly enhances survival of tumour-bearing mice. These data demonstrate that macrophages in the tumour environment limit the effectiveness of OX40-based immunotherapy, and combination therapies that target both the cell-mediated immune response and the suppressive tumour environment will be required for translation of effective immunotherapies to patients with established tumours.
Collapse
Affiliation(s)
- Michael J Gough
- Robert W. Franz Cancer Center, Earle A. Chiles Research Institute, Providence Portland Medical Center, Portland, OR 97213 USA
| | | | | |
Collapse
|
37
|
Antitumor T-cell responses contribute to the effects of dasatinib on c-KIT mutant murine mastocytoma and are potentiated by anti-OX40. Blood 2012; 120:4533-43. [PMID: 22936666 DOI: 10.1182/blood-2012-02-407163] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Targeted and immune-based therapies are thought to eradicate cancer cells by different mechanisms, and these approaches could possibly complement each other when used in combination. In this study, we report that the in vivo antitumor effects of the c-KIT inhibitor, dasatinib, on the c-KIT mutant P815 mastocytoma tumor were substantially dependent on T cell-mediated immunity. We found that dasatinib treatment significantly decreased levels of Tregs while specifically enhancing tumor antigen-specific T-cell responses. We sought to further enhance this therapy with the addition of anti-OX40 antibody, which is known to provide a potent costimulatory signal to T cells. The combination of dasatinib and anti-OX40 antibody resulted in substantially better therapeutic efficacy compared with either drug alone, and this was associated with enhanced accumulation of tumor antigen-specific T cells in the tumor microenvironment. Furthermore, the combination regimen inhibited the function of Tregs and also resulted in significantly up-regulated expression of the IFN-γ-induced chemokines CXCL9, 10, and 11 in the tumor microenvironment, which provides a feasible mechanism for the enhanced intratumoral CTL infiltration. These studies delineate a strategy by which targeted therapy and immunotherapy may be combined to achieve superior antitumor responses in cancer patients.
Collapse
|
38
|
Murphy KA, Lechner MG, Popescu FE, Bedi J, Decker SA, Hu P, Erickson JR, O'Sullivan MG, Swier L, Salazar AM, Olin MR, Epstein AL, Ohlfest JR. An in vivo immunotherapy screen of costimulatory molecules identifies Fc-OX40L as a potent reagent for the treatment of established murine gliomas. Clin Cancer Res 2012; 18:4657-68. [PMID: 22781551 DOI: 10.1158/1078-0432.ccr-12-0990] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
PURPOSE We tested the combination of a tumor lysate vaccine with a panel of costimulatory molecules to identify an immunotherapeutic approach capable of curing established murine gliomas. EXPERIMENTAL DESIGN Glioma-bearing mice were primed with a tumor lysate vaccine, followed by systemic administration of the following costimulatory ligands: OX40L, CD80, 4-1BBL, and GITRL, which were fused to the Fc portion of human immunoglobulin. Lymphocytes and mRNA were purified from the brain tumor site for immune monitoring studies. Numerous variations of the vaccine and Fc-OX40L regimen were tested alone or in combination with temozolomide. RESULTS Lysate vaccinations combined with Fc-OX40L led to the best overall survival, yielding cure rates of 50% to 100% depending on the timing, regimen, and combination with temozolomide. Cured mice that were rechallenged with glioma cells rejected the challenge, showing immunologic memory. Lymphocytes isolated from the draining lymph nodes of vaccine/Fc-OX40L-treated mice had superior tumoricidal function relative to all other groups. Vaccine/Fc-OX40L-treated mice exhibited a significant increase in proliferation of brain-infiltrating CD4 and CD8 T cells, as indicated by Ki67 staining. Fc-OX40L had single-agent activity in transplanted and spontaneous glioma models, and the pattern of inflammatory gene expression in the tumor predicted the degree of therapeutic response. CONCLUSIONS These data show that Fc-OX40L has unique and potent activity against experimental gliomas and warrants further testing.
Collapse
Affiliation(s)
- Katherine A Murphy
- Departments of Pediatrics and Neurosurgery, University of Minnesota, Minneapolis, MN 55455, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Sun DZ, Jiao JP, Ju DW, Ye M, Zhang X, Xu JY, Lu Y, He J, Wei PK, Yang MH. Tumor interstitial fluid and gastric cancer metastasis: an experimental study to verify the hypothesis of "tumor-phlegm microenvironment". Chin J Integr Med 2012; 18:350-8. [PMID: 22549391 DOI: 10.1007/s11655-012-1085-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To extract tumor interstitial fluid (TIF) from MKN-45 gastric cancer which is similar to "muddy phlegm" in Chinese medicine and observe influences of MKN-45 tumor interstitial fluid (MKN-45 TIF) intervention on metastasis of gastric cancer and on the expressions of vascular endothelial growth factor (VEGF), kinase insert domain containing receptor (KDR), epithelial-cadherin (E-cad), cyclooxygenase-2 (COX-2), intercellular adhesion molecule-1 (ICAM-1) and telomerase genes and proteins in primary tumor tissue. METHODS An MKN-45 tumor-bearing model was established in 50 nude mice. The modeled animals were equally randomized to 5 groups: the simple tumor-bearing group (model group), the normal saline (NS) via tail vein injection (i.v.) group (NS i.v. group), MKN-45 TIF i.v. group (TIF i.v. group), NS intraperitoneal injection (i.p.) group (NS i.p. group), and MKN-45 TIF i.p. group (TIF i.p. group). The TIF and NS intervention groups received injection (i.p. or i.v.) of MKN-45 TIF or NS twice a week, 0.2 mL at a time. After 8 weeks, the primary tumors were removed, weighed and HE stained to observe tumor metastasis. The primary tumor tissues were analyzed by immunohistochemistry and real-time quantitative PCR to detect expressions of VEGF, KDR, E-cad, COX-2, ICAM-1, and telomerase genes and proteins in different groups. RESULTS There were significant differences in tumor weight between TIF intervention groups and the model and NS intervention groups. Tumor metastasis was observed in all 5 groups, but the tumor metastasis rate in TIF intervention groups was significantly higher than those in the model and NS intervention groups. The gene and protein expressions of gastric cancer-related factors VEGF, KDR, COX-2, ICAM-1 and telomerase were unregulated while the gene and protein expressions of E-cad were downregulated in TIF intervention groups. CONCLUSIONS TIF promotes tumor growth, invasion and metastasis of gastric cancer. These findings provide preliminary experimental clues for verifying the hypothesis of "tumor-phlegm microenvironment".
Collapse
Affiliation(s)
- Da-zhi Sun
- Institute of Traditional Chinese Medicine Research, Chinese People's Liberation Army General Hospital, Beijing, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Rao A, Taylor JL, Chi-Sabins N, Kawabe M, Gooding WE, Storkus WJ. Combination therapy with HSP90 inhibitor 17-DMAG reconditions the tumor microenvironment to improve recruitment of therapeutic T cells. Cancer Res 2012; 72:3196-206. [PMID: 22552283 DOI: 10.1158/0008-5472.can-12-0538] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Ineffective recognition of tumor cells by CD8+ T cells is a limitation of cancer immunotherapy. Therefore, treatment regimens that coordinately promote enhanced antitumor CD8+ T-cell activation, delivery, and target cell recognition should yield greater clinical benefit. Using an MCA205 sarcoma model, we show that in vitro treatment of tumor cells with the HSP90 inhibitor 17-DMAG results in the transient (proteasome-dependent) degradation of the HSP90 client protein EphA2 and the subsequent increased recognition of tumor cells by Type-1 anti-EphA2 CD8+ T cells. In vivo administration of 17-DMAG to tumor-bearing mice led to slowed tumor growth, enhanced/prolonged recognition of tumor cells by anti-EphA2 CD8+ T cells, reduced levels of myeloid-derived suppressor cells and regulatory T cells in the tumor microenvironment, and activation of tumor-associated vascular endothelial cells in association with elevated levels of Type-1 tumor-infiltrating lymphocytes. When combined with EphA2-specific active vaccination or the adoptive transfer of EphA2-specific CD8+ T cells, 17-DMAG cotreatment yielded a superior tumor therapeutic regimen that was capable of rendering animals free of disease. Taken together, our findings indicate that 17-DMAG functions as an immune adjuvant in the context of vaccines targeting EphA2.
Collapse
Affiliation(s)
- Aparna Rao
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
| | | | | | | | | | | |
Collapse
|
41
|
Burocchi A, Pittoni P, Gorzanelli A, Colombo MP, Piconese S. Intratumor OX40 stimulation inhibits IRF1 expression and IL-10 production by Treg cells while enhancing CD40L expression by effector memory T cells. Eur J Immunol 2012; 41:3615-26. [PMID: 22229156 DOI: 10.1002/eji.201141700] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Treg cells maintain the tumor microenvironment in an immunosuppressive state preventing an effective anti-tumor immune response. A possible strategy to overcome Treg-cell suppression focuses on OX40, a costimulatory molecule expressed constitutively by Treg cells while being induced in activated effector T cells. OX40 stimulation, by the agonist mAb OX86, inhibits Treg-cell suppression and boosts effector T-cell activation. Here we uncover the mechanisms underlying the therapeutic activity of OX86 treatment dissecting its distinct effects on Treg and on effector memory T (Tem) cells, the most abundant CD4+ populations strongly expressing OX40 at the tumor site. In response to OX86, tumor-infiltrating Treg cells produced significantly less interleukin 10 (IL-10), possibly in relation to a decrease in the transcription factor interferon regulatory factor 1 (IRF1). Tem cells responded to OX86 by upregulating surface CD40L expression, providing a licensing signal to DCs. The CD40L/CD40 axis was required for Tem-cell-mediated in vitro DC maturation and in vivo DC migration. Accordingly, OX86 treatment was no longer therapeutic in CD40 KO mice. In conclusion, following OX40 stimulation, blockade of Treg-cell suppression and enhancement of the Tem-cell adjuvant effect both concurred to free DCs from immunosuppression and activate the immune response against the tumor.
Collapse
Affiliation(s)
- Alessia Burocchi
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | | | | | | |
Collapse
|