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Borgeaud M, Sandoval J, Obeid M, Banna G, Michielin O, Addeo A, Friedlaender A. Novel targets for immune-checkpoint inhibition in cancer. Cancer Treat Rev 2023; 120:102614. [PMID: 37603905 DOI: 10.1016/j.ctrv.2023.102614] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
Immune-checkpoint inhibitors have revolutionized cancer therapy, yet many patients either do not derive any benefit from treatment or develop a resistance to checkpoint inhibitors. Intrinsic resistance can result from neoantigen depletion, defective antigen presentation, PD-L1 downregulation, immune-checkpoint ligand upregulation, immunosuppression, and tumor cell phenotypic changes. On the other hand, extrinsic resistance involves acquired upregulation of inhibitory immune-checkpoints, leading to T-cell exhaustion. Current data suggest that PD-1, CTLA-4, and LAG-3 upregulation limits the efficacy of single-agent immune-checkpoint inhibitors. Ongoing clinical trials are investigating novel immune-checkpoint targets to avoid or overcome resistance. This review provides an in-depth analysis of the evolving landscape of potentially targetable immune-checkpoints in cancer. We highlight their biology, emphasizing the current understanding of resistance mechanisms and focusing on promising strategies that are under investigation. We also summarize current results and ongoing clinical trials in this crucial field that could once again revolutionize outcomes for cancer patients.
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Affiliation(s)
| | | | - Michel Obeid
- Centre Hospitalier Universitaire Vaudois, Switzerland
| | - Giuseppe Banna
- Portsmouth Hospitals University NHS Trust, Portsmouth, UK
| | | | | | - Alex Friedlaender
- Geneva University Hospitals, Switzerland; Clinique Générale Beaulieu, Geneva, Switzerland.
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2
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Moon SY, Han M, Ryu G, Shin SA, Lee JH, Lee CS. Emerging Immune Checkpoint Molecules on Cancer Cells: CD24 and CD200. Int J Mol Sci 2023; 24:15072. [PMID: 37894750 PMCID: PMC10606340 DOI: 10.3390/ijms242015072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/04/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Cancer immunotherapy strategies are based on the utilization of immune checkpoint inhibitors to instigate an antitumor immune response. The efficacy of immune checkpoint blockade, directed at adaptive immune checkpoints, has been demonstrated in select cancer types. However, only a limited subset of patients has exhibited definitive outcomes characterized by a sustained response after discontinuation of therapy. Recent investigations have highlighted the significance of immune checkpoint molecules that are overexpressed in cancer cells and inhibit myeloid lineage immune cells within a tumor microenvironment. These checkpoints are identified as potential targets for anticancer immune responses. Notably, the immune checkpoint molecules CD24 and CD200 have garnered attention owing to their involvement in tumor immune evasion. CD24 and CD200 are overexpressed across diverse cancer types and serve as signaling checkpoints by engaging their respective receptors, Siglec-10 and CD200 receptor, which are expressed on tumor-associated myeloid cells. In this review, we summarized and discussed the latest advancements and insights into CD24 and CD200 as emergent immune checkpoint moieties, further delving into their therapeutic potentials for cancer treatment.
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Affiliation(s)
- Sun Young Moon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.Y.M.); (M.H.); (G.R.); (S.-A.S.)
| | - Minjoo Han
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.Y.M.); (M.H.); (G.R.); (S.-A.S.)
| | - Gyoungah Ryu
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.Y.M.); (M.H.); (G.R.); (S.-A.S.)
| | - Seong-Ah Shin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.Y.M.); (M.H.); (G.R.); (S.-A.S.)
| | - Jun Hyuck Lee
- Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Incheon 21990, Republic of Korea;
- Department of Polar Sciences, University of Science and Technology, Incheon 21990, Republic of Korea
| | - Chang Sup Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea; (S.Y.M.); (M.H.); (G.R.); (S.-A.S.)
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3
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Choe D, Choi D. Cancel cancer: The immunotherapeutic potential of CD200/CD200R blockade. Front Oncol 2023; 13:1088038. [PMID: 36756156 PMCID: PMC9900175 DOI: 10.3389/fonc.2023.1088038] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/11/2023] [Indexed: 01/24/2023] Open
Abstract
Immune checkpoint molecules function to inhibit and regulate immune response pathways to prevent hyperactive immune activity from damaging healthy tissues. In cancer patients, targeting these key molecules may serve as a valuable therapeutic mechanism to bolster immune function and restore the body's natural defenses against tumors. CD200, an immune checkpoint molecule, is a surface glycoprotein that is widely but not ubiquitously expressed throughout the body. By interacting with its inhibitory receptor CD200R, CD200 suppresses immune cell activity within the tumor microenvironment, creating conditions that foster tumor growth. Targeting the CD200/CD200R pathway, either through the use of monoclonal antibodies or peptide inhibitors, has shown to be effective in boosting anti-tumor immune activity. This review will explore CD200 and the protein's expression and role within the tumor microenvironment, blood endothelial cells, and lymph nodes. This paper will also discuss the advantages and challenges of current strategies used to target CD200 and briefly summarize relevant preclinical/clinical studies investigating the immunotherapeutic efficacy of CD200/CD200R blockade.
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4
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Kharrati-Koopaee H, Ebrahimie E, Dadpasand M, Niazi A, Tian R, Esmailizadeh A. Gene network analysis to determine the effect of hypoxia-associated genes on brain damages and tumorigenesis using an avian model. J Genet Eng Biotechnol 2021; 19:100. [PMID: 34236536 PMCID: PMC8266987 DOI: 10.1186/s43141-021-00184-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/21/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND Hypoxia refers to the condition of low oxygen pressure in the atmosphere and characterization of response to hypoxia as a biological complex puzzle, is challenging. Previously, we carried out a comparative genomic study by whole genome resequencing of highland and lowland Iranian native chickens to identify genomic variants associated with hypoxia conditions. Based on our previous findings, we used chicken as a model and the identified hypoxia-associated genes were converted to human's orthologs genes to construct the informative gene network. The main goal of this study was to visualize the features of diseases due to hypoxia-associated genes by gene network analysis. RESULTS It was found that hypoxia-associated genes contained several gene networks of disorders such as Parkinson, Alzheimer, cardiomyopathy, drug toxicity, and cancers. We found that biological pathways are involved in mitochondrion dysfunctions including peroxynitrous acid production denoted in brain injuries. Lewy body and neuromelanin were reported as key symptoms in Parkinson disease. Furthermore, calmodulin, and amyloid precursor protein were detected as leader proteins in Alzheimer's diseases. Dexamethasone was reported as the candidate toxic drug under the hypoxia condition that implicates diabetes, osteoporosis, and neurotoxicity. Our results suggested DNA damages caused by the high doses of UV radiation in high-altitude conditions, were associated with breast cancer, ovarian cancer, and colorectal cancer. CONCLUSIONS Our results showed that hypoxia-associated genes were enriched in several gene networks of disorders including Parkinson, Alzheimer, cardiomyopathy, drug toxicity, and different types of cancers. Furthermore, we suggested, UV radiation and low oxygen conditions in high-altitude regions may be responsible for the variety of human diseases.
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Affiliation(s)
- Hamed Kharrati-Koopaee
- Institute of Biotechnology, Shiraz University, Shiraz, Iran.
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Esmaeil Ebrahimie
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
- School of Animal and Veterinary Sciences, The University of Adelaide, Adelaide, Australia
- Genomics Research Platform, School of Life Sciences, La Trobe University, Melbourne, Victoria, Australia
| | - Mohammad Dadpasand
- Department of Animal Science, School of Agriculture, Shiraz University, Shiraz, Iran.
| | - Ali Niazi
- Institute of Biotechnology, Shiraz University, Shiraz, Iran
| | - Rugang Tian
- Institute of Animal Husbandry, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, 010031, China
| | - Ali Esmailizadeh
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
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5
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Ampudia-Mesias E, Puerta-Martinez F, Bridges M, Zellmer D, Janeiro A, Strokes M, Sham YY, Taher A, Castro MG, Moertel CL, Pluhar GE, Olin MR. CD200 Immune-Checkpoint Peptide Elicits an Anti-glioma Response Through the DAP10 Signaling Pathway. Neurotherapeutics 2021; 18:1980-1994. [PMID: 33829411 PMCID: PMC8609078 DOI: 10.1007/s13311-021-01038-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 02/08/2023] Open
Abstract
Numerous therapies aimed at driving an effective anti-glioma response have been employed over the last decade; nevertheless, survival outcomes for patients remain dismal. This may be due to the expression of immune-checkpoint ligands such as PD-L1 by glioblastoma (GBM) cells which interact with their respective receptors on tumor-infiltrating effector T cells curtailing the activation of anti-GBM CD8+ T cell-mediated responses. Therefore, a combinatorial regimen to abolish immunosuppression would provide a powerful therapeutic approach against GBM. We developed a peptide ligand (CD200AR-L) that binds an uncharacterized CD200 immune-checkpoint activation receptor (CD200AR). We sought to test the hypothesis that CD200AR-L/CD200AR binding signals via he DAP10&12 pathways through in vitro studies by analyzing transcription, protein, and phosphorylation, and in vivo loss of function studies using inhibitors to select signaling molecules. We report that CD200AR-L/CD200AR binding induces an initial activation of the DAP10&12 pathways followed by a decrease in activity within 30 min, followed by reactivation via a positive feedback loop. Further in vivo studies using DAP10&12KO mice revealed that DAP10, but not DAP12, is required for tumor control. When we combined CD200AR-L with an immune-stimulatory gene therapy, in an intracranial GBM model in vivo, we observed increased median survival, and long-term survivors. These studies are the first to characterize the signaling pathway used by the CD200AR, demonstrating a novel strategy for modulating immune checkpoints for immunotherapy currently being analyzed in a phase I adult trial.
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Affiliation(s)
| | - Francisco Puerta-Martinez
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, 90089, USA
| | - Miurel Bridges
- Bioinformatics and Computational Biology Program, University of Minnesota, Minneapolis, MN, 55455, USA
| | - David Zellmer
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Andrew Janeiro
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, 90089, USA
| | - Matt Strokes
- Cell Signaling Technology, Inc, Danvers, MA, 09123, USA
| | - Yuk Y Sham
- Bioinformatics and Computational Biology Program, University of Minnesota, Minneapolis, MN, 55455, USA
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Ayman Taher
- Department of Neurosurgery and Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Maria G Castro
- Department of Neurosurgery and Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Christopher L Moertel
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - G Elizabeth Pluhar
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael R Olin
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA.
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.
- University of Minnesota, 2-167 Moos Tower, 515 Delaware St SE, Minneapolis, MN, 55455, USA.
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6
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Alghamri MS, McClellan BL, Hartlage MS, Haase S, Faisal SM, Thalla R, Dabaja A, Banerjee K, Carney SV, Mujeeb AA, Olin MR, Moon JJ, Schwendeman A, Lowenstein PR, Castro MG. Targeting Neuroinflammation in Brain Cancer: Uncovering Mechanisms, Pharmacological Targets, and Neuropharmaceutical Developments. Front Pharmacol 2021; 12:680021. [PMID: 34084145 PMCID: PMC8167057 DOI: 10.3389/fphar.2021.680021] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022] Open
Abstract
Gliomas are one of the most lethal types of cancers accounting for ∼80% of all central nervous system (CNS) primary malignancies. Among gliomas, glioblastomas (GBM) are the most aggressive, characterized by a median patient survival of fewer than 15 months. Recent molecular characterization studies uncovered the genetic signatures and methylation status of gliomas and correlate these with clinical prognosis. The most relevant molecular characteristics for the new glioma classification are IDH mutation, chromosome 1p/19q deletion, histone mutations, and other genetic parameters such as ATRX loss, TP53, and TERT mutations, as well as DNA methylation levels. Similar to other solid tumors, glioma progression is impacted by the complex interactions between the tumor cells and immune cells within the tumor microenvironment. The immune system’s response to cancer can impact the glioma’s survival, proliferation, and invasiveness. Salient characteristics of gliomas include enhanced vascularization, stimulation of a hypoxic tumor microenvironment, increased oxidative stress, and an immune suppressive milieu. These processes promote the neuro-inflammatory tumor microenvironment which can lead to the loss of blood-brain barrier (BBB) integrity. The consequences of a compromised BBB are deleteriously exposing the brain to potentially harmful concentrations of substances from the peripheral circulation, adversely affecting neuronal signaling, and abnormal immune cell infiltration; all of which can lead to disruption of brain homeostasis. In this review, we first describe the unique features of inflammation in CNS tumors. We then discuss the mechanisms of tumor-initiating neuro-inflammatory microenvironment and its impact on tumor invasion and progression. Finally, we also discuss potential pharmacological interventions that can be used to target neuro-inflammation in gliomas.
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Affiliation(s)
- Mahmoud S Alghamri
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Brandon L McClellan
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Margaret S Hartlage
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Santiago Haase
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Syed Mohd Faisal
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Rohit Thalla
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Ali Dabaja
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Kaushik Banerjee
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Stephen V Carney
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Anzar A Mujeeb
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Michael R Olin
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, United States.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, United States
| | - James J Moon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States
| | - Pedro R Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States.,Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States.,Biosciences Initiative in Brain Cancer, University of Michigan, Ann Arbor, MI, United States
| | - Maria G Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, United States.,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States.,Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, United States.,Biosciences Initiative in Brain Cancer, University of Michigan, Ann Arbor, MI, United States
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7
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Liu JQ, Hu A, Zhu J, Yu J, Talebian F, Bai XF. CD200-CD200R Pathway in the Regulation of Tumor Immune Microenvironment and Immunotherapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1223:155-165. [PMID: 32030689 DOI: 10.1007/978-3-030-35582-1_8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tumor-associated inflammation and immune responses are key components in the tumor microenvironment (TME) which regulate tumor growth, progression, and metastasis. Tumor-associated myeloid cells (TAMCs) are a group of cells that play multiple key roles including induction of tumor-associated inflammation/angiogenesis and regulation of tumor-specific T-cell responses. Thus, identification and characterization of key pathways that can regulate TAMCs are of critical importance for developing cancer immunotherapy. Recent studies suggest that CD200-CD200 receptor (CD200R) interaction may be important in regulating the TME via affecting TAMCs. In this chapter, we will give a brief overview of the CD200-CD200R axis, including the biology behind CD200-CD200R interaction and the role(s) it plays in tumor microenvironment and tumor growth, and activation/effector functions of T cells. We will also discuss CD200-CD200R's role as potential checkpoint molecules for cancer immunotherapy. Further investigation of the CD200-CD200R pathway will not only advance our understanding of tumor pathogenesis and immunity but also provide the rationale for CD200-CD200R-targeted immunotherapy of human cancer.
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Affiliation(s)
- Jin-Qing Liu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Aiyan Hu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianmin Zhu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianyu Yu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
| | - Fatemeh Talebian
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Xue-Feng Bai
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.
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8
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Xiong Z, Ampudia Mesias E, Pluhar GE, Rathe SK, Largaespada DA, Sham YY, Moertel CL, Olin MR. CD200 Checkpoint Reversal: A Novel Approach to Immunotherapy. Clin Cancer Res 2020; 26:232-241. [PMID: 31624103 DOI: 10.1158/1078-0432.ccr-19-2234] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/25/2019] [Accepted: 10/14/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE Advances in immunotherapy have revolutionized care for some patients with cancer. However, current checkpoint inhibitors are associated with significant toxicity and yield poor responses for patients with central nervous system tumors, calling into question whether cancer immunotherapy can be applied to glioblastoma multiforme. We determined that targeting the CD200 activation receptors (CD200AR) of the CD200 checkpoint with a peptide inhibitor (CD200AR-L) overcomes tumor-induced immunosuppression. We have shown the clinical efficacy of the CD200AR-L in a trial in companion dogs with spontaneous high-grade glioma. Addition of the peptide to autologous tumor lysate vaccines significantly increased the median overall survival to 12.7 months relative to tumor lysate vaccines alone, 6.36 months. EXPERIMENTAL DESIGN This study was developed to elucidate the mechanism of the CD200ARs and develop a humanized peptide inhibitor. We developed macrophage cell lines with each of four CD200ARs knocked out to determine their binding specificity and functional response. Using proteomics, we developed humanized CD200AR-L to explore their effects on cytokine/chemokine response, dendritic cell maturation and CMV pp65 antigen response in human CD14+ cells. GMP-grade peptide was further validated for activity. RESULTS We demonstrated that the CD200AR-L specifically targets a CD200AR complex. Moreover, we developed and validated a humanized CD200AR-L for inducing chemokine response, stimulating immature dendritic cell differentiation and significantly enhanced an antigen-specific response, and determined that the use of the CD200AR-L downregulated the expression of CD200 inhibitory and PD-1 receptors. CONCLUSIONS These results support consideration of a CD200AR-L as a novel platform for immunotherapy against multiple cancers including glioblastoma multiforme.
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Affiliation(s)
- Zhengming Xiong
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | | | - G Elizabeth Pluhar
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Susan K Rathe
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - David A Largaespada
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Yuk Y Sham
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, Minnesota
- Bioinformatics and Computational Biology Program, University of Minnesota, Minneapolis, Minnesota
| | - Christopher L Moertel
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Michael R Olin
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota.
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
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9
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Zhang Y, He W, Zhang S. Seeking for Correlative Genes and Signaling Pathways With Bone Metastasis From Breast Cancer by Integrated Analysis. Front Oncol 2019; 9:138. [PMID: 30918839 PMCID: PMC6424882 DOI: 10.3389/fonc.2019.00138] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/18/2019] [Indexed: 12/14/2022] Open
Abstract
Background: Bone metastasis frequently occurs in advanced breast cancer patients, and it is one of major causes of breast cancer associated mortality. The aim of the current study is to identify potential genes and related signaling pathways in the pathophysiology of breast cancer bone metastasis. Methods: Three mRNA expression datasets for breast cancer bone metastasis were obtained from Gene Expression Omnibus (GEO) dataset. The differentially expressed genes (DEGs) were obtained. Functional analyses, protein-protein interaction (PPI) network, and transcription factors (TFs)-target genes network was constructed. Real-time PCR using clinical specimens was conducted to justify the results from integrated analysis. Results: A 749 DEGs were obtained. Osteoclast differentiation and rheumatoid arthritis were two significantly enriched signaling pathways for DEGs in the bone metastasis of breast cancer. SMAD7 (degree = 10), TGFBR2 (degree = 9), VIM (degree = 8), FOS (degree = 8), PDGFRB (degree = 7), COL5A1 (degree = 6), ARRB2 (degree = 6), and ITGAV (degree = 6) were high degree genes in the PPI network. ETS1 (degree = 12), SPI1 (degree = 12), FOS (degree = 10), FLI1 (degree = 5), KLF4 (degree = 4), JUNB (degree = 4), NR3C1 (degree = 4) were high degree genes in the TFs-target genes network. Validated by QRT-PCR, the expression levels of IBSP, MMP9, MMP13, TNFAIP6, CD200, DHRS3, ASS1, RIPK4, VIM, and PROM1 were roughly consistent with our integrated analysis. Except PROM1, the other genes had a diagnose value for breast cancer bone metastasis. Conclusions: The identified DEGs and signaling pathways may make contribution for understanding the pathological mechanism of bone metastasis from breast cancer.
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Affiliation(s)
- Yu Zhang
- Department of Orthopaedics, The First People's Hospital of Chengdu, Chengdu, China
| | - Wendan He
- Department of Stomatology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Sen Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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10
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Interaction of CD200 Overexpression on Tumor Cells with CD200R1 Overexpression on Stromal Cells: An Escape from the Host Immune Response in Rectal Cancer Patients. JOURNAL OF ONCOLOGY 2019; 2019:5689464. [PMID: 30800162 PMCID: PMC6360612 DOI: 10.1155/2019/5689464] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 11/29/2018] [Indexed: 11/17/2022]
Abstract
CD200 imparts an immunoregulatory signal through its receptor, CD200R1, leading to the suppression of tumor specific immunity. The mechanism of CD200:CD200R1 signaling pathway is still uncertain. Our aim was to investigate the expression and localization of CD200 and its receptor CD200R1 and their clinical significance in rectal cancer patients. We examined the immunohistochemical expressions and localizations of CD200 and CD200R1 in 140 rectal cancer patients. Among the patients, 79 underwent the preoperative radiotherapy and the others were untreated prior to the surgery. In addition, 121 matched normal rectal mucosa samples were evaluated. The results of immunohistochemical analysis showed a strikingly high level of CD200 in tumor cells (p=0.001) and CD200R1 expression in normal mucosal epithelium and stromal cells. Importantly, CD200R1 was overexpressed in stromal cells of the metastatic cancer patients compared to patients without metastases (p=0.002). More than that, 87% of metastatic patients had a phenotype of upregulated CD200 in tumor cells accompanied by overexpressed CD200R1 in stromal cells. In addition, low levels of CD200 were correlated with improved overall survival in untreated patients. We showed that tumor-stroma communication through CD200 and its receptor interaction is selected in patients with high risk of relapse. High levels of these molecules support instigation of the far and local metastatic nest that provides solid ground for metastasis. Our current data also disclose a mechanism by which CD200:CD200R1 affects tumor progression and may strengthen the feasibility of targeting CD200 or CD200R1 as anticancer strategy.
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11
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Efremov YR, Proskurina AS, Potter EA, Dolgova EV, Efremova OV, Taranov OS, Ostanin AA, Chernykh ER, Kolchanov NA, Bogachev SS. Cancer Stem Cells: Emergent Nature of Tumor Emergency. Front Genet 2018; 9:544. [PMID: 30505319 PMCID: PMC6250818 DOI: 10.3389/fgene.2018.00544] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/26/2018] [Indexed: 12/12/2022] Open
Abstract
A functional analysis of 167 genes overexpressed in Krebs-2 tumor initiating cells was performed. In the first part of the study, the genes were analyzed for their belonging to one or more of the three groups, which represent the three major phenotypic manifestation of malignancy of cancer cells, namely (1) proliferative self-sufficiency, (2) invasive growth and metastasis, and (3) multiple drug resistance. 96 genes out of 167 were identified as possible contributors to at least one of these fundamental properties. It was also found that substantial part of these genes are also known as genes responsible for formation and/or maintenance of the stemness of normal pluri-/multipotent stem cells. These results suggest that the malignancy is simply the ability to maintain the stem cell specific genes expression profile, and, as a consequence, the stemness itself regardless of the controlling effect of stem niches. In the second part of the study, three stress factors combined into the single concept of "generalized cellular stress," which are assumed to activate the expression of these genes, were defined. In addition, possible mechanisms for such activation were identified. The data obtained suggest the existence of a mechanism for the de novo formation of a pluripotent/stem phenotype in the subpopulation of "committed" tumor cells.
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Affiliation(s)
- Yaroslav R Efremov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Anastasia S Proskurina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina A Potter
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Evgenia V Dolgova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Oksana V Efremova
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Oleg S Taranov
- The State Research Center of Virology and Biotechnology Vector, Koltsovo, Russia
| | - Aleksandr A Ostanin
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Elena R Chernykh
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Nikolay A Kolchanov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey S Bogachev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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12
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Zgodziński W, Grywalska E, Surdacka A, Zinkiewicz K, Majewski M, Szczepanek D, Wallner G, Roliński J. Surface CD200 and CD200R antigens on lymphocytes in advanced gastric cancer: a new potential target for immunotherapy. Arch Med Sci 2018; 14:1271-1280. [PMID: 30393481 PMCID: PMC6209723 DOI: 10.5114/aoms.2018.73398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 09/01/2017] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Gastric cancer (GC) is one of the leading causes of cancer death worldwide. The membrane glycoprotein CD200, widely expressed on multiple cells/tissues, uses a structurally similar receptor (CD200R), delivering immunoregulatory signals. There is evidence that CD200/CD200R signaling suppresses anti-tumor responses in different types of malignancies. Little is known about the CD200/CD200R pathway in GC. The aim of the study was to evaluate the frequencies of CD200+ and CD200R+ lymphocytes in patients with GC. MATERIAL AND METHODS Forty patients primarily diagnosed with GC and 20 healthy volunteers (control group) were enrolled. The viable peripheral blood lymphocytes underwent labeling with fluorochrome-conjugated monoclonal antibodies and were analyzed using a flow cytometer. RESULTS In the GC group, the percentages of T CD3+, CD3+/CD4+, and CD3+/CD8+ cells expressing CD200 antigen were higher than in the control group (p < 0.00013, p < 0.0004, and p < 0.0006, respectively). In the GC group, the frequencies of T CD3+, CD3+/CD4+ and CD3+/CD8+ cells expressing CD200R were lower than in the control group (p < 0.0009, p < 0.004, and p < 0.002, respectively). The percentage of B CD19+/CD200+ lymphocytes was higher in GC patients than in the control group (p < 0.00005). Lower frequency of B CD19+/CD200R+ cells was observed in GC patients compared to the control group (p < 0.0001). No differences in the frequencies of CD200+ and CD200R+ lymphocytes were found in relation to either UICC stage or histological grading of the tumors. CONCLUSIONS For GC pathogenesis, deregulation of the CD200/CD200R axis is important. High percentages of lymphocytes with CD200 expression may contribute to the continuous T cell activation and development of chronic inflammation and influence gastric carcinogenesis.
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Affiliation(s)
- Witold Zgodziński
- 2 Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Lublin, Poland
| | - Agata Surdacka
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Lublin, Poland
| | - Krzysztof Zinkiewicz
- 2 Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Marek Majewski
- 2 Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Dariusz Szczepanek
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Lublin, Poland
| | - Grzegorz Wallner
- 2 Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Jacek Roliński
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Lublin, Poland
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13
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Gorczynski RM, Erin N, Maqbool T, Gorczynski CP, Gorczynski LY. Characterization of an in vitro model system to explore control of tumor invasion of EMT6 and 4THM breast tumors by CD200:CD200R interactions. Breast Cancer 2018. [DOI: 10.1007/s12282-018-0851-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Gorczynski RM, Zhu F. Checkpoint blockade in solid tumors and B-cell malignancies, with special consideration of the role of CD200. Cancer Manag Res 2017; 9:601-609. [PMID: 29180896 PMCID: PMC5691938 DOI: 10.2147/cmar.s147326] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In the ontogeny of a normal immune response, a series of checkpoints must be overcome to ensure that unwanted and/or harmful self-directed activation responses are avoided. Many of the molecules now known to be active in this overseeing of the evolving immune activation cascade, contributing inhibitory signals to dampen an overexuberant response, belong to the immunoglobulin supergene family. These include members of the CD28/CTLA-4:B7.1/B7.2 receptor/ligand family, PD-1 and PDL-1, CD200 and CD200R, and the more recently described V-domain immunoglobulin suppressor of T-cell activation and its ligand (VSIG-3/IGSF11). Unfortunately, from the point of view of improving immunotargeting of cancer cells, triggering these checkpoint inhibitory signaling pathways, so necessary to maintain self-tolerance, simultaneously acts to prevent effective tumor immunity. The recent development of reagents, predominantly antibodies, to act as checkpoint blockade agents, has had a dramatic effect on human cancer treatment, with a marked reported success for anti-CTLA-4 and PD-1 in particular in clinical trials. This review provides a general overview of the data now available showing the promise of such treatments to our cancer armamentarium and elaborates in depth on the potential promise of what can be regarded as an underappreciated target molecule for checkpoint blockade in chronic lymphocytic leukemia and solid tumors, CD200.
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Affiliation(s)
| | - Fang Zhu
- Department of Surgical Research, Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
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15
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Xiong Z, Ampudia-Mesias E, Shaver R, Horbinski CM, Moertel CL, Olin MR. Tumor-derived vaccines containing CD200 inhibit immune activation: implications for immunotherapy. Immunotherapy 2017; 8:1059-71. [PMID: 27485078 DOI: 10.2217/imt-2016-0033] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
There are over 400 ongoing clinical trials using tumor-derived vaccines. This approach is especially attractive for many types of brain tumors, including glioblastoma, yet so far the clinical response is highly variable. One contributor to poor response is CD200, which acts as a checkpoint blockade, inducing immune tolerance. We demonstrate that, in response to vaccination, glioma-derived CD200 suppresses the anti-tumor immune response. In contrast, a CD200 peptide inhibitor that activates antigen-presenting cells overcomes immune tolerance. The addition of the CD200 inhibitor significantly increased leukocyte infiltration into the vaccine site, cytokine and chemokine production, and cytolytic activity. Our data therefore suggest that CD200 suppresses the immune system's response to vaccines, and that blocking CD200 could improve the efficacy of cancer immunotherapy.
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Affiliation(s)
- Zhengming Xiong
- University of Minnesota, Pediatrics, Division of Hematology and Oncology, Minneapolis, MN 55455, USA
| | - Elisabet Ampudia-Mesias
- University of Minnesota, Pediatrics, Division of Hematology and Oncology, Minneapolis, MN 55455, USA
| | - Rob Shaver
- University of Minnesota, Pediatrics, Division of Hematology and Oncology, Minneapolis, MN 55455, USA
| | - Craig M Horbinski
- Departments of Neurosurgery & Pathology, Northwestern University, Chicago, IL 60611, USA
| | - Christopher L Moertel
- University of Minnesota, Pediatrics, Division of Hematology and Oncology, Minneapolis, MN 55455, USA
| | - Michael R Olin
- University of Minnesota, Pediatrics, Division of Hematology and Oncology, Minneapolis, MN 55455, USA
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16
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Curry A, Khatri I, Kos O, Zhu F, Gorczynski R. Importance of CD200 expression by tumor or host cells to regulation of immunotherapy in a mouse breast cancer model. PLoS One 2017; 12:e0171586. [PMID: 28234914 PMCID: PMC5325206 DOI: 10.1371/journal.pone.0171586] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/22/2017] [Indexed: 01/11/2023] Open
Abstract
Cell-surface CD200 expression by mouse EMT6 breast tumor cells increased primary tumor growth and metastasis to the draining lymph nodes (DLN) in normal (WT) BALB/c female recipients, while lack of CD200R1 expression in a CD200R1-/- host negated this effect. Silencing CD200 expression in EMT6siCD200 tumor cells also reduced their ability to grow and metastasize in WT animals. The cellular mechanisms responsible for these effects have not been studied in detail. We report characterization of tumor infiltrating (TILs) and draining lymph node (DLN) cells in WT and CD200-/- BALB/c mice, receiving WT tumor cells, or EMT6 lacking CD200 expression (EMT6siCD200 cells). Our data show an important correlation with augmented CD8+ cytotoxic T cells and resistance to tumor growth in mice lacking exposure (on either host cells or tumor) to the immunoregulatory molecule CD200. Confirmation of the importance of such CD8+ cells came from monitoring tumor growth and characterization of the TILs and DLN cells in WT mice challenged with EMT6 and EMT6siCD200 tumors and treated with CD8 and CD4 depleting antibodies. Finally, we have assessed the mechanisms(s) whereby addition of metformin as an augmenting chemotherapeutic agent in CD200-/- animals given EMT6 tumors and treated with a previously established immunotherapy regime can increase host resistance. Our data support the hypothesis that increased autophagy in the presence of metformin increases CD8+ responses and tumor resistance, an effect attenuated by the autophagy inhibitor verteporfin.
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MESH Headings
- Animals
- Antibodies, Neoplasm/pharmacology
- Antigens, CD/genetics
- Antigens, CD/immunology
- Autophagy/drug effects
- Autophagy/immunology
- Breast Neoplasms/genetics
- Breast Neoplasms/immunology
- Breast Neoplasms/pathology
- Breast Neoplasms/therapy
- Cell Line, Tumor
- Female
- Gene Expression
- Gene Silencing
- Humans
- Immunization, Passive/methods
- Lymph Nodes/drug effects
- Lymph Nodes/immunology
- Lymph Nodes/pathology
- Lymphocyte Depletion/methods
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/pathology
- Lymphocytes, Tumor-Infiltrating/transplantation
- Mammary Glands, Animal/immunology
- Mammary Glands, Animal/pathology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/therapy
- Metformin/pharmacology
- Mice
- Mice, Inbred BALB C
- Mice, Knockout
- Orexin Receptors/deficiency
- Orexin Receptors/genetics
- Orexin Receptors/immunology
- Porphyrins/pharmacology
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/pathology
- Verteporfin
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Affiliation(s)
- Anna Curry
- University Health Network, Department of Surgery, Transplant Research Division, Toronto, Canada
| | - Ismat Khatri
- University Health Network, Department of Surgery, Transplant Research Division, Toronto, Canada
| | - Olha Kos
- University Health Network, Department of Surgery, Transplant Research Division, Toronto, Canada
| | - Fang Zhu
- University Health Network, Department of Surgery, Transplant Research Division, Toronto, Canada
| | - Reginald Gorczynski
- University Health Network, Department of Surgery, Transplant Research Division, Toronto, Canada
- University of Toronto, Department of Immunology, Toronto, Canada
- * E-mail:
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17
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A comparison of serum miRNAs influencing metastatic growth of EMT6 vs 4THM tumor cells in wild-type and CD200R1KO mice. Breast Cancer Res Treat 2017; 162:255-266. [DOI: 10.1007/s10549-017-4128-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/20/2017] [Indexed: 01/11/2023]
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18
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Damiani D, Tiribelli M, Raspadori D, Sirianni S, Meneghel A, Cavalllin M, Michelutti A, Toffoletti E, Geromin A, Simeone E, Bocchia M, Fanin R. Clinical impact of CD200 expression in patients with acute myeloid leukemia and correlation with other molecular prognostic factors. Oncotarget 2016; 6:30212-21. [PMID: 26338961 PMCID: PMC4745791 DOI: 10.18632/oncotarget.4901] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 08/07/2015] [Indexed: 01/25/2023] Open
Abstract
CD200, a protein belonging to the immunoglobulin superfamily, has been associated with a poor prognosis in lymphoproliferative disorders and in acute leukemia. We studied the expression of CD200 in a series of 244 patients with diagnosis of acute myeloid leukemia (AML), to evaluate its impact on outcome and its possible association with other known prognostic factors. CD200 was found in 136/244 (56%) patients, in 41 of whom (30%) with high intensity of expression (MFI ≥ 11). CD200 was more frequent in secondary compared to de novo leukemia (p = 0.0006), in CD34 positive cases (p = 0.00001), in Bcl2 overexpressing cases (p = 0.01), in those wild-type Flt3 (p = 0.004) and with favorable or unfavorable compared to intermediate karyotype (p = 0.0003). CD200+ patients have a two-fold lower probability to attain complete remission, both in univariate (p = 0.006) and multivariate (p = 0.04) analysis. The negative impact of CD200 was found also in overall survival (p = 0.02) and was correlated with the intensity of expression of the molecule (p = 0.024). CD200 has an additive negative impact on survival in patients with unfavorable cytogenetic (p = 0.046) and in secondary leukemia (p = 0.05), and is associate with a worsening of outcome in patients with favorable biological markers, such as mutated NPM (p = 0.02), wild-type Flt3 (p = 0.034), negativity of CD34 (p = 0.03) and of CD56 (p = 0.03). In conclusion, CD200 is emerging as both a prognostic factor and a potential target of novel therapeutic approaches for AML, aiming to reverse the “do not eat me” signal of CD200 or to manipulate the suppressive immune microenvironment induced by CD200 binding to its receptor.
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Affiliation(s)
- Daniela Damiani
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Mario Tiribelli
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | | | | | - Alessia Meneghel
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Margherita Cavalllin
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Angela Michelutti
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Eleonora Toffoletti
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Antonella Geromin
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Erica Simeone
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
| | - Monica Bocchia
- Division of Hematology, University of Siena, Siena, Italy
| | - Renato Fanin
- Division of Hematology and Bone Marrow Transplantation, Azienda Ospedaliero-Universitaria di Udine, Udine, Italy
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19
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Celik B, Yalcin AD, Genc GE, Bulut T, Kuloglu Genc S, Gumuslu S. CXCL8, IL-1β and sCD200 are pro-inflammatory cytokines and their levels increase in the circulation of breast carcinoma patients. Biomed Rep 2016; 5:259-263. [PMID: 27446554 PMCID: PMC4950671 DOI: 10.3892/br.2016.709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/03/2016] [Indexed: 02/05/2023] Open
Abstract
The influence of biomarkers on carcinogenesis has been investigated extensively. Whether they promote carcinogenesis or work against cancer development remains to be elucidated. To the best of our knowledge, the novel molecule cluster of differentiation 200 (CD200) has not been studied on human breast cancer subjects. The present study aimed to evaluate interleukin-1β (IL-1β), C-X-C motif chemokine ligand 8 (CXCL8), cancer antigen 15.3 (CA 15.3) and the soluble CD200 (sCD200) levels in the serum samples of breast carcinoma patients in order to predict their role in breast carcinoma. The subjects included individuals with early and advanced stage breast cancers, as well as healthy controls. Commercially available ELISA kits were used to measure the serum concentrations of sCD200, IL-1β, CXCL8, CA 15.3, C-reactive protein (CRP) and leukocyte count. A total of 130 subjects were recruited; 50 early stage cancer, 50 advanced stage and 30 control subjects. Serum sCD200, CXCL8, IL-1β and CRP levels were significantly higher in the early as well as the advanced stage breast cancer patients compared to the control group. The level of CA 15.3 was statistically different between early and advanced stage. There were significant positive correlations between IL-1β and CXCL8, and IL-1β and serum sCD200 levels in the control group. These correlations did not persist in the early or the advanced stage cancer groups except CRP and CA 15.3, but new correlations appeared between serum sCD200 level and leukocyte count for advanced stage breast cancer group. Multivariate regression correlation analysis revealed positive correlation between IL-1β and sCD200; and IL-1β and CXCL8. In conclusion, sCD200, CXCL8, CA 15.3 and IL-1β are proinflammatory molecules and their levels are influenced in breast cancer patients.
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Affiliation(s)
- Betul Celik
- Department of Pathology, Antalya Training and Research Hospital, 07100 Antalya, Turkey
- Correspondence to: Dr Betul Celik, Department of Pathology, Antalya Training and Research Hospital, Varlik Mahallesi Kazim Karabekir Cad, 07100 Antalya, Turkey, E-mail:
| | - Arzu Didem Yalcin
- Department of Internal Medicine, Allergy and Clinical Immunology Unit, Antalya Training and Research Hospital, 07100 Antalya, Turkey
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, R.O.C
| | - Gizem Esra Genc
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Tangul Bulut
- Department of Pathology, Antalya Training and Research Hospital, 07100 Antalya, Turkey
| | - Sibel Kuloglu Genc
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Saadet Gumuslu
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
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20
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Liu JQ, Talebian F, Wu L, Liu Z, Li MS, Wu L, Zhu J, Markowitz J, Carson WE, Basu S, Bai XF. A Critical Role for CD200R Signaling in Limiting the Growth and Metastasis of CD200+ Melanoma. THE JOURNAL OF IMMUNOLOGY 2016; 197:1489-97. [PMID: 27385779 DOI: 10.4049/jimmunol.1600052] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 06/12/2016] [Indexed: 12/29/2022]
Abstract
CD200 is a cell surface glycoprotein that functions through engaging CD200R on cells of the myeloid lineage and inhibits their functions. Expression of CD200 was implicated in a variety of human cancer cells, including melanoma cells; however, its roles in tumor growth and immunity are not clearly understood. In this study, we used CD200R-deficient mice and the B16 tumor model to evaluate this issue. We found that CD200R-deficient mice exhibited accelerated growth of CD200(+), but not CD200(-), B16 tumors. Strikingly, CD200R-deficient mice receiving CD200(+) B16 cells i.v. exhibited massive tumor growth in multiple organs, including liver, lung, kidney, and peritoneal cavity, whereas the growth of the same tumors in wild-type mice was limited. CD200(+) tumors grown in CD200R-deficient mice contained higher numbers of CD11b(+)Ly6C(+) myeloid cells, exhibited increased expression of VEGF and HIF1α genes with increased angiogenesis, and showed significantly reduced infiltration of CD4(+) and CD8(+) T cells, presumably as the result of reduced expression of T cell chemokines, such as CXCL9 and CXCL16. The liver from CD200R-deficient mice, under metastatic growth of CD200(+) tumors, contained significantly increased numbers of CD11b(+)Gr1(-) myeloid cells and Foxp3(+) regulatory T cells and reduced numbers of NK cells. Liver T cells also had a reduced capacity to produce IFN-γ or TNF-α. Taken together, we revealed a critical role for CD200R signaling in limiting the growth and metastasis of CD200(+) tumors. Thus, targeting CD200R signaling may potentially interfere with the metastatic growth of CD200(+) tumors, like melanoma.
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Affiliation(s)
- Jin-Qing Liu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Fatemeh Talebian
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Lisha Wu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210; Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhihao Liu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210; Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ming-Song Li
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Laichu Wu
- Davis Medical Research Center, Columbus, OH 43210; and
| | - Jianmin Zhu
- Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - Joseph Markowitz
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - William E Carson
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Sujit Basu
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Xue-Feng Bai
- Department of Pathology and Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210; Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
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21
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Gorczynski RM, Erin N, Zhu F. Serum-derived exosomes from mice with highly metastatic breast cancer transfer increased metastatic capacity to a poorly metastatic tumor. Cancer Med 2016; 5:325-36. [PMID: 26725371 PMCID: PMC4735763 DOI: 10.1002/cam4.575] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/09/2015] [Accepted: 10/05/2015] [Indexed: 12/12/2022] Open
Abstract
Altered interaction between CD200 and CD200R represents an example of “checkpoint blockade” disrupting an effective, tumor‐directed, host response in murine breast cancer cells. In CD200R1KO mice, long‐term cure of EMT6 breast cancer, including metastatic spread to lung and liver, was achieved in BALB/c mice. The reverse was observed with 4THM tumors, an aggressive, inflammatory breast cancer, with increased tumor metastasis in CD200R1KO. We explored possible explanations for this difference. We measured the frequency of circulating tumor cells (CTCs) in peripheral blood of tumor bearers, as well as lung/liver and draining lymph nodes. In some cases mice received infusions of exosomes from nontumor controls, or tumor bearers, with/without additional infusions of anticytokine antibodies. The measured frequency of circulating tumor cells (CTCs) in peripheral blood was equivalent in the two models in WT and CD200R1KO mice. Increased metastasis in EMT6 tumor bearers was seen in vivo following adoptive transfer of serum, or serum‐derived exosomes, from 4THM tumor bearers, an effect which was attenuated by anti‐IL‐6, and anti‐IL‐17, but not anti‐TNFα, antibody. Anti‐IL‐6 also attenuated enhanced migration of EMT6 cells in vitro induced by 4THM serum or exosomes, or recombinant IL‐6. Exosome cytokine proteomic profiles responses in 4THM and EMT6 tumor‐bearing mice were regulated by CD200:CD200R interactions, with attenuation of both IL‐6 and IL‐17 in 4THM CD200tg mice, and enhanced levels in 4THM CD200R1KO mice. We suggest these cytokines act on the microenvironment at sites within the host, and/or directly on tumor cells themselves, to increase metastatic potential.
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Affiliation(s)
- Reginald M Gorczynski
- Toronto General Hospital, University Health Network, Toronto, Ontario, Canada.,Faculty of Medicine, Department of Immunology, Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Nuray Erin
- Department of Medical Pharmacology, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Fang Zhu
- Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
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Are animal models useful or confusing in understanding the human feto-maternal relationship? A debate. J Reprod Immunol 2015; 108:56-64. [DOI: 10.1016/j.jri.2014.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/24/2014] [Accepted: 10/29/2014] [Indexed: 11/18/2022]
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23
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Structural properties of a viral orthologue of cellular CD200 protein: KSHV vOX2. Virology 2015; 474:94-104. [DOI: 10.1016/j.virol.2014.10.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 07/29/2014] [Accepted: 10/22/2014] [Indexed: 12/29/2022]
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24
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Gorczynski RM, Chen Z, Erin N, Khatri I, Podnos A. Comparison of immunity in mice cured of primary/metastatic growth of EMT6 or 4THM breast cancer by chemotherapy or immunotherapy. PLoS One 2014; 9:e113597. [PMID: 25409195 PMCID: PMC4237434 DOI: 10.1371/journal.pone.0113597] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/29/2014] [Indexed: 12/19/2022] Open
Abstract
PURPOSE We have compared cure from local/metastatic tumor growth in BALB/c mice receiving EMT6 or the poorly immunogenic, highly metastatic 4THM, breast cancer cells following manipulation of immunosuppressive CD200:CD200R interactions or conventional chemotherapy. METHODS We reported previously that EMT6 tumors are cured in CD200R1KO mice following surgical resection and immunization with irradiated EMT6 cells and CpG oligodeoxynucleotide (CpG), while wild-type (WT) animals developed pulmonary and liver metastases within 30 days of surgery. We report growth and metastasis of both EMT6 and a highly metastatic 4THM tumor in WT mice receiving iv infusions of Fab anti-CD200R1 along with CpG/tumor cell immunization. Metastasis was followed both macroscopically (lung/liver nodules) and microscopically by cloning tumor cells at limiting dilution in vitro from draining lymph nodes (DLN) harvested at surgery. We compared these results with local/metastatic tumor growth in mice receiving 4 courses of combination treatment with anti-VEGF and paclitaxel. RESULTS In WT mice receiving Fab anti-CD200R, no tumor cells are detectable following immunotherapy, and CD4+ cells produced increased TNFα/IL-2/IFNγ on stimulation with EMT6 in vitro. No long-term cure was seen following surgery/immunotherapy of 4THM, with both microscopic (tumors in DLN at limiting dilution) and macroscopic metastases present within 14 d of surgery. Chemotherapy attenuated growth/metastases in 4THM tumor-bearers and produced a decline in lung/liver metastases, with no detectable DLN metastases in EMT6 tumor-bearing mice-these latter mice nevertheless showed no significantly increased cytokine production after restimulation with EMT6 in vitro. EMT6 mice receiving immunotherapy were resistant to subsequent re-challenge with EMT6 tumor cells, but not those receiving curative chemotherapy. Anti-CD4 treatment caused tumor recurrence after immunotherapy, but produced no apparent effect in either EMT6 or 4THM tumor bearers after chemotherapy treatment. CONCLUSION Immunotherapy, but not chemotherapy, enhances CD4+ immunity and affords long-term control of breast cancer growth and resistance to new tumor foci.
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MESH Headings
- Animals
- Antibodies/therapeutic use
- Antigens, CD/immunology
- Antineoplastic Agents, Phytogenic/therapeutic use
- Breast Neoplasms/pathology
- Breast Neoplasms/surgery
- Breast Neoplasms/therapy
- CD4 Antigens/immunology
- CD4-Positive T-Lymphocytes/cytology
- CD4-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/cytology
- CD8-Positive T-Lymphocytes/immunology
- Cell Line, Tumor
- Female
- Humans
- Immunoglobulin Fab Fragments/therapeutic use
- Immunotherapy
- Interferon-gamma/metabolism
- Interleukin-2/metabolism
- Liver Neoplasms/pathology
- Liver Neoplasms/prevention & control
- Liver Neoplasms/secondary
- Lung Neoplasms/pathology
- Lung Neoplasms/prevention & control
- Lung Neoplasms/secondary
- Lymph Nodes/pathology
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/surgery
- Mammary Neoplasms, Experimental/therapy
- Mice
- Mice, Inbred BALB C
- Mice, Knockout
- Neoplasm Recurrence, Local/prevention & control
- Oligodeoxyribonucleotides/immunology
- Orexin Receptors/deficiency
- Orexin Receptors/genetics
- Orexin Receptors/metabolism
- Paclitaxel/therapeutic use
- Spleen/cytology
- Spleen/transplantation
- Transplantation, Homologous
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- Reginald M. Gorczynski
- University Health Network, Toronto General Hospital, Toronto, Canada
- Department of Immunology, Faculty of Medicine, University of Toronto, and Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
| | - Zhiqi Chen
- University Health Network, Toronto General Hospital, Toronto, Canada
| | - Nuray Erin
- Department of Medical Pharmacology, Akdeniz University, School of Medicine, Antalya, Turkey
| | - Ismat Khatri
- University Health Network, Toronto General Hospital, Toronto, Canada
| | - Anna Podnos
- University Health Network, Toronto General Hospital, Toronto, Canada
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Erin N, Podnos A, Tanriover G, Duymuş Ö, Cote E, Khatri I, Gorczynski RM. Bidirectional effect of CD200 on breast cancer development and metastasis, with ultimate outcome determined by tumor aggressiveness and a cancer-induced inflammatory response. Oncogene 2014; 34:3860-70. [PMID: 25263452 DOI: 10.1038/onc.2014.317] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 08/02/2014] [Accepted: 08/09/2014] [Indexed: 12/27/2022]
Abstract
CD200 acts through its receptor (CD200R) to inhibit excessive inflammation. The role of CD200-CD200R1 interaction in tumor immunity is poorly understood. In this study, we examined the role of CD200-CD200R1 interaction in the progression and metastasis of highly aggressive 4THM murine-breast carcinoma using CD200 transgenic (CD200(tg)) and CD200R1 knock-out (CD200R1(-)(/-)) BALB/c mice. 4THM cells induce extensive visceral metastasis and neutrophil infiltration in affected tissues. CD200 overexpression in the host was associated with decreased primary tumor growth and metastasis, whereas lack of CD200R1 expression by host cells was associated with enhanced visceral metastasis. Absence of CD200R1 expression led to decreased tumor-infiltrating-cytotoxic T cells and increased the release of inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin (IL)-6. In contrast, CD200 overexpression led to increased tumor-induced interferon-γ and IL-10 response and decreased TNF-α and IL-6 release. Neutrophil infiltration of tissues was markedly decreased in CD200(tg) animals and increased in CD200R1(-/-) mice. These findings are contradictory to what has been reported in the EMT6 mouse breast-cancer model. Other distinguishing features of tumor elicited by EMT6 and 4THM cell injections were also examined. Visceral tissues from mice bearing EMT6 tumors showed a lack of neutrophil infiltration and decreased IL-6 release in CD200R1(-/-) mice. EMT6 and 4THM cells also differed in vimentin expression and in vitro migration rate, which was markedly lower in EMT6 tumors. These results support the hypothesis that CD200 expression can alter immune responses, and can inhibit metastatic growth of tumor cells that induce systemic and local inflammatory response. Increasing CD200 activity/signaling might be an important therapeutic strategy for treatment of aggressive breast carcinomas.
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Affiliation(s)
- N Erin
- Department of Medical Pharmacology, School of Medicine, Akdeniz University, Antalya City, Antalya, Turkey
| | - A Podnos
- University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - G Tanriover
- Department of Histology and Embryology, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Ö Duymuş
- Department of Medical Pharmacology, School of Medicine, Akdeniz University, Antalya City, Antalya, Turkey
| | - E Cote
- University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - I Khatri
- University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - R M Gorczynski
- University Health Network, Toronto General Hospital, Toronto, ON, Canada
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Cure of metastatic growth of EMT6 tumor cells in mice following manipulation of CD200:CD200R signaling. Breast Cancer Res Treat 2013; 142:271-82. [PMID: 24166280 PMCID: PMC3832754 DOI: 10.1007/s10549-013-2735-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 10/12/2013] [Indexed: 01/22/2023]
Abstract
In previous studies, we observed that regulation of expression of CD200, both on cells of a transplantable breast cancer, EMT6, and of the host, as well as of the receptor, CD200R in host mice, regulated local tumor growth and metastasis in immunocompetent animals. This in turn led to an improved ability to document immunity to EMT6 in CD200R1KO mice. In the current study, we have explored the ability to cure BALB/c CD200KO or CD200R1KO mice of tumors ≤1 cm3 in size by surgical resection of localized tumor, followed by immunization with irradiated EMT6 cells along with CpG as adjuvant. While control animals treated in this fashion developed significant pulmonary and liver metastases within 30 days of surgery, significant protection was seen in both CD200KO or CD200R1KO mice, with no macroscopic lung/liver metastases observed in CD200R1KO mice on sacrifice at day 300. Following surgical resection and immunization, draining lymph nodes from control mice contained tumor cells cloned at limiting dilution in vitro even before pulmonary and hepatic metastasis was seen. In contrast, within the limits of detection of the assay used (sensitivity ~1 in 107 cells), no tumor cells were detected at limiting dilution in similarly treated CD200R1KO mice, and significant reductions were seen in CD200KO mice. Infusion of anti-CD4, but less so anti-CD8, mAb into surgically treated and immunized CD200R1KO mice attenuated protection from both macroscopic (liver/lung) and microscopic (assayed by limiting dilution of DLN) metastasis. Adoptive transfer of lymphocytes from treated CD200R1KO mice to surgically treated control mice also attenuated metastatic growth of tumor, which was abolished by pretreatment of transferred cells with anti-CD4 mAb. Our data suggest that CD200:CD200R attenuates a potentially tumor-protective CD4 host response to breast cancer.
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27
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Mocellin S, Benna C, Pilati P. Coinhibitory molecules in cancer biology and therapy. Cytokine Growth Factor Rev 2013; 24:147-61. [PMID: 23380546 DOI: 10.1016/j.cytogfr.2013.01.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Accepted: 01/09/2013] [Indexed: 12/31/2022]
Abstract
The adaptive immune response is controlled by checkpoints represented by coinhibitory molecules, which are crucial for maintaining self-tolerance and minimizing collateral tissue damage under physiological conditions. A growing body of preclinical evidence supports the hypothesis that unleashing this immunological break might be therapeutically beneficial in the fight against cancer, as it would elicit an effective antitumor immune response. Remarkably, recent clinical trials have demonstrated that this novel strategy can be highly effective in the treatment of patients with cancer, as shown by the paradigmatic case of ipilimumab (a monoclonal antibody blocking the coinhibitory molecule cytotoxic T lymphocyte associated antigen-4 [CTLA4]) that is opening a new era in the therapeutic approach to a chemoresistant tumor such as cutaneous melanoma. In this review we summarize the biology of coinhibitory molecules, overview the experimental and clinical attempts to interfere with these immune checkpoints to treat cancer and critically discuss the challenges posed by such a promising antitumor modality.
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Affiliation(s)
- Simone Mocellin
- Department of Surgery, Oncology and Gastroenterology, University of Padova, via Giustiniani 2, 35128 Padova, Italy.
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Abstract
The type 1 membrane glycoprotein CD200, widely expressed on multiple cells/tissues, uses a structurally similar receptor (CD200R1), whose expression is more restricted to cells of the myeloid and lymphoid lineages, to transmit signals affecting responses in multiple physiological systems. Thus CD200 expression is reported to exert effects on cancer growth, autoimmune and allergic disorders, infection, transplantation, bone development and homeostasis, and reproductive biology. It was initially thought, based on the idea that CD200R1 was mostly expressed on cells of myeloid origin, that CD200:CD200R1 interactions were primarily dedicated to controlling myeloid cell function. However additional members of the CD200R family have now also been identified, although their function(s) remain unclear, and CD200R1 itself is now known to be expressed by subsets of T cells and other cells. Together these observations add layers of complexity to our understanding of CD200-related regulation. In common with a number of physiological systems, the mechanism(s) of CD200-induced signaling seem to fit within a similar framework of opposing actions of kinases and phosphatases. This paper highlights the advances in our knowledge of immunoregulation achieved following CD200:CD200R interaction and the potential clinical applicability of that information.
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Affiliation(s)
- Reginald M. Gorczynski
- Departments of Surgery and Immunology, University Health Network and The Toronto Hospital, Toronto, ON, Canada M5G 1L7
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29
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Podnos A, Clark DA, Erin N, Yu K, Gorczynski RM. Further evidence for a role of tumor CD200 expression in breast cancer metastasis: decreased metastasis in CD200R1KO mice or using CD200-silenced EMT6. Breast Cancer Res Treat 2012; 136:117-27. [PMID: 23053647 DOI: 10.1007/s10549-012-2258-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 09/12/2012] [Indexed: 11/27/2022]
Abstract
Previous studies reported that CD200 expression on cells of the transplantable EMT6 mouse breast cancer line was increased during growth in immunocompetent mice. Low levels of expression persisted in NOD-SCID.IL-2(γr-/-) mice or mice with generalized over-expression of a CD200 transgene (CD200(tg) mice), despite the faster tumor growth in both of these latter strains. We also showed that CD200 expression (by the host and/or tumor cells) led to increased seeding of tumor cells to DLN in immunocompromised (CD200(tg) or NOD-SCID.IL-2(γr-/-)) vs immunocompetent mice, using limiting dilution cloning of tumor cells from DLN (vs contralateral lymph nodes, CLN). Evidence for an important role for CD200 expression in this increased metastasis came from the observation that neutralization of CD200 by anti-CD200mAbs decreased tumor metastasis and increased levels of cytotoxic anti-tumor immune cells in DLN. In the current studies, we have extended these observations by exploring tumor growth/metastasis in CD200R1 KO mice in which we have previously shown, in a transplant model, that expression of CD200 fails to deliver an immunosuppressive signal. In addition, we have studied local and metastatic growth in healthy control mice of EMT6 tumor cells stably transduced with shRNA able to silence CD200 expression. In both scenarios, decreased metastasis was observed, with increased immunity to EMT6 detected by cytotoxicity assays. In addition, adoptive transfer of DLN to control mice attenuated EMT6 metastases implying a potential therapeutic benefit from neutralizing CD200 expression in breast cancer.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- Breast Neoplasms/immunology
- Breast Neoplasms/therapy
- Female
- Gene Expression Regulation, Neoplastic/immunology
- Humans
- Immunotherapy
- Interleukin-2/immunology
- Lymph Nodes/immunology
- Lymph Nodes/pathology
- Mammary Neoplasms, Animal/genetics
- Mammary Neoplasms, Animal/immunology
- Mammary Neoplasms, Animal/therapy
- Mice
- Mice, Inbred NOD
- Mice, Knockout
- Mice, SCID
- Neoplasm Metastasis/immunology
- Neoplasm Metastasis/pathology
- Neoplasm Metastasis/therapy
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Affiliation(s)
- Anna Podnos
- University Health Network, Toronto General Hospital, 101 College Street, Toronto, Ontario, Canada
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30
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Rygiel TP, Meyaard L. CD200R signaling in tumor tolerance and inflammation: A tricky balance. Curr Opin Immunol 2012; 24:233-8. [DOI: 10.1016/j.coi.2012.01.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/03/2012] [Accepted: 01/04/2012] [Indexed: 10/14/2022]
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