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Leone P, Malerba E, Susca N, Favoino E, Perosa F, Brunori G, Prete M, Racanelli V. Endothelial cells in tumor microenvironment: insights and perspectives. Front Immunol 2024; 15:1367875. [PMID: 38426109 PMCID: PMC10902062 DOI: 10.3389/fimmu.2024.1367875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/05/2024] [Indexed: 03/02/2024] Open
Abstract
The tumor microenvironment is a highly complex and dynamic mixture of cell types, including tumor, immune and endothelial cells (ECs), soluble factors (cytokines, chemokines, and growth factors), blood vessels and extracellular matrix. Within this complex network, ECs are not only relevant for controlling blood fluidity and permeability, and orchestrating tumor angiogenesis but also for regulating the antitumor immune response. Lining the luminal side of vessels, ECs check the passage of molecules into the tumor compartment, regulate cellular transmigration, and interact with both circulating pathogens and innate and adaptive immune cells. Thus, they represent a first-line defense system that participates in immune responses. Tumor-associated ECs are involved in T cell priming, activation, and proliferation by acting as semi-professional antigen presenting cells. Thus, targeting ECs may assist in improving antitumor immune cell functions. Moreover, tumor-associated ECs contribute to the development at the tumor site of tertiary lymphoid structures, which have recently been associated with enhanced response to immune checkpoint inhibitors (ICI). When compared to normal ECs, tumor-associated ECs are abnormal in terms of phenotype, genetic expression profile, and functions. They are characterized by high proliferative potential and the ability to activate immunosuppressive mechanisms that support tumor progression and metastatic dissemination. A complete phenotypic and functional characterization of tumor-associated ECs could be helpful to clarify their complex role within the tumor microenvironment and to identify EC specific drug targets to improve cancer therapy. The emerging therapeutic strategies based on the combination of anti-angiogenic treatments with immunotherapy strategies, including ICI, CAR T cells and bispecific antibodies aim to impact both ECs and immune cells to block angiogenesis and at the same time to increase recruitment and activation of effector cells within the tumor.
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Affiliation(s)
- Patrizia Leone
- Internal Medicine Unit, Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Eleonora Malerba
- Department of Precision and Regenerative Medicine and Ionian Area-(DiMePRe-J), Aldo Moro University of Bari, Bari, Italy
| | - Nicola Susca
- Internal Medicine Unit, Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Elvira Favoino
- Rheumatic and Systemic Autoimmune Diseases Unit, Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Federico Perosa
- Rheumatic and Systemic Autoimmune Diseases Unit, Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Giuliano Brunori
- Centre for Medical Sciences, University of Trento and Nephrology and Dialysis Division, Santa Chiara Hospital, Provincial Health Care Agency (APSS), Trento, Italy
| | - Marcella Prete
- Internal Medicine Unit, Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Vito Racanelli
- Centre for Medical Sciences, University of Trento and Internal Medicine Division, Santa Chiara Hospital, Provincial Health Care Agency (APSS), Trento, Italy
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2
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Fang J, Lu Y, Zheng J, Jiang X, Shen H, Shang X, Lu Y, Fu P. Exploring the crosstalk between endothelial cells, immune cells, and immune checkpoints in the tumor microenvironment: new insights and therapeutic implications. Cell Death Dis 2023; 14:586. [PMID: 37666809 PMCID: PMC10477350 DOI: 10.1038/s41419-023-06119-x] [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: 05/24/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/06/2023]
Abstract
The tumor microenvironment (TME) is a highly intricate milieu, comprising a multitude of components, including immune cells and stromal cells, that exert a profound influence on tumor initiation and progression. Within the TME, angiogenesis is predominantly orchestrated by endothelial cells (ECs), which foster the proliferation and metastasis of malignant cells. The interplay between tumor and immune cells with ECs is complex and can either bolster or hinder the immune system. Thus, a comprehensive understanding of the intricate crosstalk between ECs and immune cells is essential to advance the development of immunotherapeutic interventions. Despite recent progress, the underlying molecular mechanisms that govern the interplay between ECs and immune cells remain elusive. Nevertheless, the immunomodulatory function of ECs has emerged as a pivotal determinant of the immune response. In light of this, the study of the relationship between ECs and immune checkpoints has garnered considerable attention in the field of immunotherapy. By targeting specific molecular pathways and signaling molecules associated with ECs in the TME, novel immunotherapeutic strategies may be devised to enhance the efficacy of current treatments. In this vein, we sought to elucidate the relationship between ECs, immune cells, and immune checkpoints in the TME, with the ultimate goal of identifying novel therapeutic targets and charting new avenues for immunotherapy.
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Affiliation(s)
- Jianwen Fang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Yue Lu
- Department of Breast and Thyroid Surgery, First Affiliated Hospital of Huzhou University, 313000, Huzhou, China
| | - Jingyan Zheng
- Department of Breast and Thyroid Surgery, Lishui People's Hospital, The Six Affiliated Hospital of Wenzhou Medical University, 323000, Lishui, China
| | - Xiaocong Jiang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Haixing Shen
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
- Department of Breast and Thyroid Surgery, Cixi People's Hospital, 315300, Cixi, China
| | - Xi Shang
- Department of Breast and Thyroid Surgery, Taizhou Hospital, Zhejiang University, 318000, Taizhou, China
| | - Yuexin Lu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China.
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3
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Scheib N, Tiemann J, Becker C, Probst HC, Raker VK, Steinbrink K. The Dendritic Cell Dilemma in the Skin: Between Tolerance and Immunity. Front Immunol 2022; 13:929000. [PMID: 35837386 PMCID: PMC9275407 DOI: 10.3389/fimmu.2022.929000] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
Dendritic cells (DC) are uniquely capable of initiating and directing immune responses. The range of their activities grounds in the heterogeneity of DC subsets and their functional plasticity. Numerical and functional DC changes influence the development and progression of disease, and correction of such dysregulations has the potential to treat disease causally. In this review, we discuss the major advances in our understanding of the regulation of DC lineage formation, differentiation, and function in the skin. We describe the alteration of DC in disease as well as possibilities for therapeutic reprogramming with a focus on tolerogenic DC. Because regulatory T cells (Treg) are indispensable partners of DC in the induction and control of tolerance, we pay special attention to the interactions with these cells. Above all, we would like to arouse fascination for this cell type and its therapeutic potential in skin diseases.
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Affiliation(s)
- Nils Scheib
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Jessica Tiemann
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Christian Becker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Hans Christian Probst
- Institute for Immunology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Verena Katharina Raker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
- *Correspondence: Verena Katharina Raker,
| | - Kerstin Steinbrink
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
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4
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Current Development of Nano-Drug Delivery to Target Macrophages. Biomedicines 2022; 10:biomedicines10051203. [PMID: 35625939 PMCID: PMC9139084 DOI: 10.3390/biomedicines10051203] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Macrophages are the most important innate immune cells that participate in various inflammation-related diseases. Therefore, macrophage-related pathological processes are essential targets in the diagnosis and treatment of diseases. Since nanoparticles (NPs) can be preferentially taken up by macrophages, NPs have attracted most attention for specific macrophage-targeting. In this review, the interactions between NPs and the immune system are introduced to help understand the pharmacokinetics and biodistribution of NPs in immune cells. The current design and strategy of NPs modification for specific macrophage-targeting are investigated and summarized.
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5
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Khadge S, Cole K, Talmadge JE. Myeloid derived suppressor cells and the release of micro-metastases from dormancy. Clin Exp Metastasis 2021; 38:279-293. [PMID: 34014424 DOI: 10.1007/s10585-021-10098-8] [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] [Received: 12/14/2020] [Accepted: 04/22/2021] [Indexed: 12/11/2022]
Abstract
Metastasis is the primary cause of cancer mortality and an improved understanding of its pathology is critical to the development of novel therapeutic approaches. Mechanism-based therapeutic strategies require insight into the timing of tumor cell dissemination, seeding of distant organs, formation of occult lesions and critically, their release from dormancy. Due to imaging limitations, primary tumors can only be detected when they reach a relatively large size (e.g. > 1 cm3), which, based on our understanding of tumor evolution, occurs approximately 10 years and about 30 doubling times following tumor initiation. Genomic profiling of paired primary tumors and metastases has suggested that tumor seeding at secondary sites occurs early during tumor progression and frequently, years prior to clinical diagnosis. Following seeding, tumor cells may enter into and remain in a dormant state, and if they survive and are released from dormancy, they can proliferate into an overt lesion. The timeline of tumor initiation and metastatic dormancy is regulated by tumor interactions with its microenvironment, angiogenesis, and tumor-specific cytotoxic T-lymphocyte (CTL) responses. Therefore, a better understanding of the cellular interactions responsible for immune evasion and/or tumor cell release from dormancy would facilitate the development of therapeutics targeted against this critical part of tumor progression. The immunosuppressive mechanisms mediated by myeloid-derived suppressor cells (MDSCs) contribute to tumor progression and, we posit, promote tumor cell escape from CTL-associated dormancy. Thus, while clinical and translational research has demonstrated a role for MDSCs in facilitating tumor progression and metastasis through tumor escape from adoptive and innate immune responses (T-, natural killer and B-cell responses), few studies have considered the role of MDSCs in tumor release from dormancy. In this review, we discuss MDSC expansion, driven by tumor burden associated growth factor secretion and their role in tumor cell escape from dormancy, resulting in manifest metastases. Thus, the therapeutic strategies to inhibit MDSC expansion and function may provide an approach to delay metastatic relapse and prolong the survival of patients with advanced malignancies.
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Affiliation(s)
- Saraswoti Khadge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kathryn Cole
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - James E Talmadge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. .,Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5950, USA. .,Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-6495, USA.
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6
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Buonfiglioli A, Hambardzumyan D. Macrophages and microglia: the cerberus of glioblastoma. Acta Neuropathol Commun 2021; 9:54. [PMID: 33766119 PMCID: PMC7992800 DOI: 10.1186/s40478-021-01156-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/14/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) is the most aggressive and deadliest of the primary brain tumors, characterized by malignant growth, invasion into the brain parenchyma, and resistance to therapy. GBM is a heterogeneous disease characterized by high degrees of both inter- and intra-tumor heterogeneity. Another layer of complexity arises from the unique brain microenvironment in which GBM develops and grows. The GBM microenvironment consists of neoplastic and non-neoplastic cells. The most abundant non-neoplastic cells are those of the innate immune system, called tumor-associated macrophages (TAMs). TAMs constitute up to 40% of the tumor mass and consist of both brain-resident microglia and bone marrow-derived myeloid cells from the periphery. Although genetically stable, TAMs can change their expression profiles based upon the signals that they receive from tumor cells; therefore, heterogeneity in GBM creates heterogeneity in TAMs. By interacting with tumor cells and with the other non-neoplastic cells in the tumor microenvironment, TAMs promote tumor progression. Here, we review the origin, heterogeneity, and functional roles of TAMs. In addition, we discuss the prospects of therapeutically targeting TAMs alone or in combination with standard or newly-emerging GBM targeting therapies.
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7
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Klarquist JS, Janssen EM. Melanoma-infiltrating dendritic cells: Limitations and opportunities of mouse models. Oncoimmunology 2021; 1:1584-1593. [PMID: 23264904 PMCID: PMC3525613 DOI: 10.4161/onci.22660] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The infiltration of melanoma lesions by dendritic cells (DCs) has been suggested to play a tumorigenic role due to the capacity of DCs to induce tumor tolerance and promote angiogenesis as well as metastasis. However, it has also been shown that tumor-infiltrating DCs (TIDCs) induce antitumor responses and hence may be targeted in cost-effective therapeutic approaches to obtain patient-specific DCs that present relevant tumor antigens, without the need for ex vivo DC expansion or tumor antigen identification. Unfortunately, little is known about the composition, nature and function of TIDCs found in human melanoma. The development of mouse melanoma models has greatly contributed to the molecular understanding of melanoma immunology in mice, but many questions on TIDCs remain unanswered. Here, we discuss current knowledge about melanoma TIDCs in various mouse models with regard to their translational potential and clinical relevance.
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Affiliation(s)
- Jared S Klarquist
- Division of Cellular and Molecular Immunology; Cincinnati Children's Hospital Research Foundation; University of Cincinnati College of Medicine; Cincinnati, OH USA
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8
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Allen R, Ivtchenko E, Thuamsang B, Sangsuwan R, Lewis JS. Polymer-loaded hydrogels serve as depots for lactate and mimic "cold" tumor microenvironments. Biomater Sci 2020; 8:6056-6068. [PMID: 33000781 DOI: 10.1039/d0bm01196g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The burgeoning field of biomaterials for immunotherapy has aided in the understanding of foundational mechanisms of cancer immunology. In particular, implantable biomaterials can be engineered to investigate specific aspects of the tumor microenvironment either singularly or in combination. Of note, the metabolite - lactate, a byproduct of anaerobic glycolysis, is known to reprogram immune cells, resulting in increased tumor survival. An adequate model that can recapitulate intratumoral lactate concentrations does not exist. In this study, we demonstrate that a simple biomaterial platform could be developed as an instructive tool to decipher the effects of lactate in vivo. Briefly, we demonstrate that a peptide hydrogel loaded with granulocyte-macrophage colony stimulating factor and poly-(lactic-co-glycolic acid)/(lactic acid) microparticles can generate the localized lactate concentrations (∼2-22 mM) and cellular makeup of the tumor microenvironment, following subcutaneous implantation in mice. Furthermore, infiltrating immune cells adopt phenotypes similar to those seen in other in vitro and in vivo cancer models, including immunosupressive dendritic cells. This hydrogel system is a framework to interrogate immune cell modulation in cancer-like environments using safe and degradable biomaterials. Moreover, this system can be multifaceted, as incorporation of other cancer tumor environmental factors or chemotherapeutic drugs is facile and could be insightful in developing or improving immunotherapies.
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Affiliation(s)
- Riley Allen
- Department of Biomedical Engineering, University of California (Davis), Davis, CA 95616, USA.
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9
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Zhu S, Yang N, Wu J, Wang X, Wang W, Liu YJ, Chen J. Tumor microenvironment-related dendritic cell deficiency: a target to enhance tumor immunotherapy. Pharmacol Res 2020; 159:104980. [PMID: 32504832 DOI: 10.1016/j.phrs.2020.104980] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/07/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022]
Abstract
Dendritic cells (DCs), as specialized antigen-presenting cells, are essential for the initiation of specific T cell responses in innate antitumor immunity and, in certain cases, support humoral responses to inhibit tumor development. Mounting evidence suggests that the DC system displays a broad spectrum of dysfunctional status in the tumor microenvironment (TME), which ultimately affects antitumor immune responses. DC-based therapy can restore the function of DCs in the TME, thus showing a promising potential in tumor therapy. In this review, we provide an overview of the DC deficiency caused by various factors in the TME and discuss proposed strategies to reverse DC deficiency and the applications of novel combinatorial DC-based therapy for immune normalization of the tumor.
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Affiliation(s)
- Shan Zhu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Ning Yang
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Jing Wu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xue Wang
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Wan Wang
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | | | - Jingtao Chen
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.
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Siska PJ, Singer K, Evert K, Renner K, Kreutz M. The immunological Warburg effect: Can a metabolic-tumor-stroma score (MeTS) guide cancer immunotherapy? Immunol Rev 2020; 295:187-202. [PMID: 32157706 DOI: 10.1111/imr.12846] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 12/14/2022]
Abstract
The "glycolytic switch" also known as the "Warburg effect" is a key feature of tumor cells and leads to the accumulation of lactate and protons in the tumor environment. Intriguingly, non-malignant lymphocytes or stromal cells such as tumor-associated macrophages and cancer-associated fibroblasts contribute to the lactate accumulation in the tumor environment, a phenomenon described as the "Reverse Warburg effect." Localized lactic acidosis has a strong immunosuppressive effect and mediates an immune escape of tumors. However, some tumors do not display the Warburg phenotype and either rely on respiration or appear as a mosaic of cells with different metabolic properties. Based on these findings and on the knowledge that T cell infiltration is predictive for patient outcome, we suggest a metabolic-tumor-stroma score to determine the likelihood of a successful anti-tumor immune response: (a) a respiring tumor with high T cell infiltration ("hot"); (b) a reverse Warburg type with respiring tumor cells but glycolytic stromal cells; (c) a mixed type with glycolytic and respiring compartments; and (d) a glycolytic (Warburg) tumor with low T cell infiltration ("cold"). Here, we provide evidence that these types can be independent of the organ of origin, prognostically relevant and might help select the appropriate immunotherapy approach.
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Affiliation(s)
- Peter J Siska
- Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Katrin Singer
- Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Katja Evert
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Kathrin Renner
- Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.,Regensburg Center for Interventional Immunology (RCI), Regensburg, Germany
| | - Marina Kreutz
- Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.,Regensburg Center for Interventional Immunology (RCI), Regensburg, Germany
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Phillippi B, Singh M, Loftus T, Smith H, Muccioli M, Wright J, Pate M, Benencia F. Effect of laminin environments and tumor factors on the biology of myeloid dendritic cells. Immunobiology 2019; 225:151854. [PMID: 31753553 DOI: 10.1016/j.imbio.2019.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/26/2019] [Accepted: 10/01/2019] [Indexed: 12/25/2022]
Abstract
Dendritic cells (DCs) are immune cells that surveil the organism for infections or malignancies and activate specific T lymphocytes initiating specific immune responses. Contrariwise, DCs have been show to participate in the development of diseases, among them some types of cancer by inducing angiogenesis or immunosuppression. The ultimate fate of DC functions regarding their role in disease or health is prompted by signals from the microenvironment. We have previously shown that the interaction of DCs with various extracellular matrix components modifies the immune properties and angiogenic potential of these cells. The objective of the current studies was to investigate the angiogenic and immune profile of murine myeloid DCs upon interaction with laminin environments, with a particular emphasis on ovarian cancer. Our results show that murine ovarian tumors produce several types of laminins, as determined by PCR analysis, and also that tumor-associated DCs, both from ascites or solid tumors express adhesion molecules capable of interacting with these molecules as determined by flow cytometry and PCR analysis. Further, we established that DCs cultured on laminin upregulate both AKT and MEK signaling pathways, and that long-term culture on laminin surfaces decreases the immunological capacities of these cells when compared to the same cells cultured on synthetic substrates. In addition, we observed that tumor conditioned media was able to modify the metabolic status of these cells, and also reprogram the development of DCs from bone marrow precursors towards the generation of myeloid-derived suppressor cells. Overall, these studies demonstrate that the interaction between soluble factors and extracellular matrix components of the ovarian cancer microenvironment shape the biology of DCs and thus help them become co-conspirators of tumor growth.
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Affiliation(s)
- Ben Phillippi
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States
| | - Manindra Singh
- Molecular and Cellular Biology Program, Ohio University, United States
| | - Tiffany Loftus
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States
| | - Hannah Smith
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States
| | - Maria Muccioli
- Molecular and Cellular Biology Program, Ohio University, United States
| | - Julia Wright
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States
| | - Michelle Pate
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States
| | - Fabian Benencia
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, United States; Molecular and Cellular Biology Program, Ohio University, United States; Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, United States; The Diabetes Institute at Ohio University, United States.
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12
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Dendritic cells in inflammatory angiogenesis and lymphangiogenesis. Curr Opin Immunol 2018; 53:180-186. [PMID: 29879585 DOI: 10.1016/j.coi.2018.05.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022]
Abstract
Lymph node (LN) expansion during inflammation is essential to establish immune responses and relies on the development of blood and lymph vessels. Human dendritic cells (DCs), subdivided into two main subsets, namely conventional DCs (cDCs) and plasmacytoid DCs (pDCs), are professional antigen presenting cells endowed with the capability to produce soluble mediators regulating inflammation and tissue repair. cDCs support angiogenesis in secondary LNs both directly and indirectly through the secretion of vascular endothelial growth factor-A (VEGF)-A and VEGF-C and the production of several other mediators endowed with angiogenic properties. Finally, cDCs can affect neovascular formation via a transdifferentiation process. At variance with cDCs, the angiogenic properties of pDCs still remain poorly explored.
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Morrot A, da Fonseca LM, Salustiano EJ, Gentile LB, Conde L, Filardy AA, Franklim TN, da Costa KM, Freire-de-Lima CG, Freire-de-Lima L. Metabolic Symbiosis and Immunomodulation: How Tumor Cell-Derived Lactate May Disturb Innate and Adaptive Immune Responses. Front Oncol 2018; 8:81. [PMID: 29629338 PMCID: PMC5876249 DOI: 10.3389/fonc.2018.00081] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/09/2018] [Indexed: 12/14/2022] Open
Abstract
The tumor microenvironment (TME) is composed by cellular and non-cellular components. Examples include the following: (i) bone marrow-derived inflammatory cells, (ii) fibroblasts, (iii) blood vessels, (iv) immune cells, and (v) extracellular matrix components. In most cases, this combination of components may result in an inhospitable environment, in which a significant retrenchment in nutrients and oxygen considerably disturbs cell metabolism. Cancer cells are characterized by an enhanced uptake and utilization of glucose, a phenomenon described by Otto Warburg over 90 years ago. One of the main products of this reprogrammed cell metabolism is lactate. "Lactagenic" or lactate-producing cancer cells are characterized by their immunomodulatory properties, since lactate, the end product of the aerobic glycolysis, besides acting as an inducer of cellular signaling phenomena to influence cellular fate, might also play a role as an immunosuppressive metabolite. Over the last 10 years, it has been well accepted that in the TME, the lactate secreted by transformed cells is able to compromise the function and/or assembly of an effective immune response against tumors. Herein, we will discuss recent advances regarding the deleterious effect of high concentrations of lactate on the tumor-infiltrating immune cells, which might characterize an innovative way of understanding the tumor-immune privilege.
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Affiliation(s)
- Alexandre Morrot
- Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Imunoparasitologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | | | - Eduardo J. Salustiano
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Boffoni Gentile
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Conde
- Instituto de Microbiologia, Departamento de Imunologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alessandra Almeida Filardy
- Instituto de Microbiologia, Departamento de Imunologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tatiany Nunes Franklim
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Kelli Monteiro da Costa
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Leonardo Freire-de-Lima
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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14
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Penn CA, Yang K, Zong H, Lim JY, Cole A, Yang D, Baker J, Goonewardena SN, Buckanovich RJ. Therapeutic Impact of Nanoparticle Therapy Targeting Tumor-Associated Macrophages. Mol Cancer Ther 2017; 17:96-106. [PMID: 29133618 DOI: 10.1158/1535-7163.mct-17-0688] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/19/2017] [Accepted: 10/18/2017] [Indexed: 01/01/2023]
Abstract
Antiangiogenic therapies, despite initial encouragement, have demonstrated a limited benefit in ovarian cancer. Laboratory studies suggest antiangiogenic therapy-induced hypoxia can induce tumor "stemness" as resistance to antiangiogenic therapy develops and limits the therapeutic benefit. Resistance to antiangiogenic therapy and an induction of tumor stemness may be mediated by proangiogenic tumor-associated macrophages (TAM). As such, TAMs have been proposed as a therapeutic target. We demonstrate here that ovarian TAMs express high levels of the folate receptor-2 (FOLR2) and can be selectively targeted using G5-dendrimer nanoparticles using methotrexate as both a ligand and a toxin. G5-methotrexate (G5-MTX) nanoparticles deplete TAMs in both solid tumor and ascites models of ovarian cancer. As a therapeutic agent, these nanoparticles are more effective than cisplatin. Importantly, these nanoparticles could (i) overcome resistance to antiangiogenic therapy, (ii) prevent antiangiogenic therapy-induced increases in cancer stem-like cells in both murine and human tumor cell models, (iii) prevent antiangiogenic therapy-induced increases in VEGF-C, and (iv) prevent antiangiogenic therapy-induced BRCA1 gene expression. Combined, this work strongly supports the development of TAM-targeted nanoparticle therapy. Mol Cancer Ther; 17(1); 96-106. ©2017 AACR.
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Affiliation(s)
- Courtney A Penn
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
| | - Kun Yang
- Division of Hematology Oncology, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Hong Zong
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan
| | - Jae-Young Lim
- Division of Hematology Oncology, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Alex Cole
- Division of Hematology Oncology, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Dongli Yang
- Division of Hematology Oncology, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - James Baker
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan.,Division of Allergy and Clinical Immunology, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Sascha N Goonewardena
- Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan.,Division of Cardiovascular Medicine, Department of Medicine, University of Michigan, Ann Arbor, Michigan
| | - Ronald J Buckanovich
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan. .,Division of Hematology Oncology, Department of Medicine, University of Michigan, Ann Arbor, Michigan.,Michigan Nanotechnology Institute for Medicine and Biological Sciences, University of Michigan, Ann Arbor, Michigan.,Division of Hematology-Oncology, Magee-Womens Research Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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15
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Yang Y, Lu J, Liu H, Jin G, Bai R, Li X, Wang D, Zhao J, Huang Y, Liu K, Xing Y, Dong Z. Dendritic cells loading autologous tumor lysate promote tumor angiogenesis. Tumour Biol 2016; 37:10.1007/s13277-016-5312-7. [PMID: 27726097 DOI: 10.1007/s13277-016-5312-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/05/2016] [Indexed: 12/26/2022] Open
Abstract
Dendritic cells (DC) have been exploited for vaccination against cancer for years. DC loading autologous tumor lysate (ATL-DC) have been assessed in ongoing clinical trials, but frequently do not meet expectation. In this study, we found that mice immunized with ATL-DC induced less protective anti-tumor effect than immunized with DC alone. The percentage of CD8+ T cells and the lysis efficiency of CTLs to auto tumor cells in ATL-DC vaccination group was less than that of DC group. Moreover, vaccination of mice with ATL-DC also promoted tumor angiogenesis by analyzing the CD31 positive microvessel density and hemoglobin content of tumor specimens. Human umbilical vein endothelial cells (HUVEC) have been proved effective in the anti-angiogenesis immunity against cancer. However, in the following research we found that the anti-tumor effect was attenuated while immunized mice with HUVEC combined with ATL-DC (HUVEC + ATL-DC). Furthermore, immunized mice with HUVEC + ATL-DC profoundly increased the tumor angiogenesis by analyzing the microvessel density and hemoglobin content of tumor specimens. These data suggest that vaccination using ATL-DC antagonized HUVEC induced anti-angiogenesis effect. Our research for the first time indicated that ATL-DC have the potential to promote the process of tumor angiogenesis in vivo. As vaccines based on DC loading autologous tumor lysate have been used in clinical, this find warned that the safety of this kind of vaccine should be taken into consideration seriously.
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Affiliation(s)
- Yi Yang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
- Department of Physiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Jing Lu
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Hangfan Liu
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Guoguo Jin
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Ruihua Bai
- Department of Pathology, Henan Cancer Hospital, Zhengzhou University, Zhengzhou, Henan, 450008, People's Republic of China
| | - Xiang Li
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Dongyu Wang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Jimin Zhao
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Youtian Huang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Kangdong Liu
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China
| | - Ying Xing
- Department of Physiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Ziming Dong
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, No. 100 Science Road, Zhengzhou, 450001, Henan, People's Republic of China.
- Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan, 450001, People's Republic of China.
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16
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Lotfi R, Kaltenmeier C, Lotze MT, Bergmann C. Until Death Do Us Part: Necrosis and Oxidation Promote the Tumor Microenvironment. Transfus Med Hemother 2016; 43:120-32. [PMID: 27226794 DOI: 10.1159/000444941] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/23/2016] [Indexed: 12/12/2022] Open
Abstract
Tumor proliferation is concomitant with autophagy, limited apoptosis, and resultant necrosis. Necrosis is associated with the release of damage-associated molecular pattern molecules (DAMPs), which act as 'danger signals', recruiting inflammatory cells, inducing immune responses, and promoting wound healing. Most of the current treatment strategies for cancer (chemotherapy, radiation therapy, hormonal therapy) promote DAMP release following therapy-induced tumor death by necroptosis and necrosis. Myeloid cells (monocytes, dendritic cells (DCs), and granulocytes), as well as mesenchymal stromal cells (MSCs) belong to the early immigrants in response to unscheduled cell death, initiating and modulating the subsequent inflammatory response. Responding to DAMPs, MSCs, and DCs promote an immunosuppressive milieu, while eosinophils induce oxidative conditions limiting the biologic activity of DAMPs over time and distance. Regulatory T cells are strongly affected by pattern recognition receptor signaling in the tumor microenvironment and limit immune reactivity coordinately with myeloid-derived suppressor cells. Means to 'aerobically' oxidize DAMPs provide a novel strategy for limiting tumor progression. The present article summarizes our current understanding of the impact of necrosis on the tumor microenvironment and the influence of oxidative conditions found within this setting.
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Affiliation(s)
- Ramin Lotfi
- Institute for Transfusion Medicine, University Hospital Ulm, Ulm, Germany; Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Services Baden-Württemberg-Hessen, Ulm, Germany
| | - Christof Kaltenmeier
- University of Pittsburgh Schools of the Health Sciences G.27A Hillman Cancer Center, Pittsburgh, PA, USA
| | - Michael T Lotze
- University of Pittsburgh Schools of the Health Sciences G.27A Hillman Cancer Center, Pittsburgh, PA, USA
| | - Christoph Bergmann
- Department of Otorhinolaryngology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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17
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Spinelli FM, Vitale DL, Demarchi G, Cristina C, Alaniz L. The immunological effect of hyaluronan in tumor angiogenesis. Clin Transl Immunology 2015; 4:e52. [PMID: 26719798 PMCID: PMC4685440 DOI: 10.1038/cti.2015.35] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/26/2015] [Accepted: 10/27/2015] [Indexed: 12/21/2022] Open
Abstract
The relationship between the immune system and angiogenesis has been described in several contexts, both in physiological and pathological conditions, as pregnancy and cancer. In fact, different types of immune cells, such as myeloid, macrophages and denditric cells, are able to modulate tumor neovascularization. On the other hand, tumor microenvironment also includes extracellular matrix components like hyaluronan, which has a deregulated synthesis in different tumors. Hyaluronan is a glycosaminoglycan, normally present in the extracellular matrix of tissues in continuous remodeling (embryogenesis or wound healing processes) and acts as an important modulator of cell behavior by different mechanisms, including angiogenesis. In this review, we discuss hyaluronan as a modulator of tumor angiogenesis, focusing in intracellular signaling mediated by its receptors expressed on different immune cells. Recent observations suggest that the immune system is an important component in tumoural angiogenesis. Therefore, immune modulation could have an impact in anti-angiogenic therapy as a new therapeutic strategy, which in turn might improve effectiveness of treatment in cancer patients.
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Affiliation(s)
- Fiorella M Spinelli
- Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín, Pcia. Bs. As., Argentina
- Laboratory of Tumour Microenvironment, CIBA, Junín, Pcia. Bs. As., Argentina
| | - Daiana L Vitale
- Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín, Pcia. Bs. As., Argentina
- Laboratory of Tumour Microenvironment, CIBA, Junín, Pcia. Bs. As., Argentina
| | - Gianina Demarchi
- Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín, Pcia. Bs. As., Argentina
- Laboratory of Pituitary Physiopathology, CIBA, Junín, Provincia de Buenos Aires, Argentina
| | - Carolina Cristina
- Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín, Pcia. Bs. As., Argentina
- Laboratory of Pituitary Physiopathology, CIBA, Junín, Provincia de Buenos Aires, Argentina
| | - Laura Alaniz
- Centro de Investigaciones Básicas y Aplicadas (CIBA), CIT NOBA, Universidad Nacional del Noroeste de la Pcia. de Bs. As. Consejo Nacional de Investigaciones Científicas y Técnicas (UNNOBA-CONICET), Junín, Pcia. Bs. As., Argentina
- Laboratory of Tumour Microenvironment, CIBA, Junín, Pcia. Bs. As., Argentina
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18
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Jin G, Zhao J, Yang YI, Liu K, Jiang Y, Zhang X, Zhang Y, Huang Y, Lu J, Dong Z. JAK/STAT3 signaling pathway mediates endothelial-like differentiation of immature dendritic cells. Oncol Lett 2015; 10:3471-3477. [PMID: 26788152 PMCID: PMC4665379 DOI: 10.3892/ol.2015.3752] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 08/17/2015] [Indexed: 12/31/2022] Open
Abstract
Endothelial-like differentiation (ELD) of dendritic cells (DCs) is a poorly understood phenomenon. The present study evaluated the effect on the ELD of DCs by using human esophageal squamous cell carcinoma (ESCC) cells with high or poor differentiation. The results demonstrated that KYSE450 (highly differentiated) and KYSE70 (poorly differentiated) cell supernatants induce the differentiation of immature DCs (iDCs), derived from healthy adult volunteers, away from the DC pathway and towards an endothelial cell (EC) fate. This effect was strongest in the cells treated with the KYSE70 supernatant. During the ELD of iDCs, sustained activation of JAK (janus tyrosine kinase)/STAT3 (signal transducer and activator of transcription 3) signaling was detected. Incubation of iDCs with the JAK inhibitor, AG490 blocked JAK/STAT3 phosphorylation and iDC differentiation. These results suggested that the JAK/STAT3 signaling pathway mediates ELD of iDCs. Furthermore, the poorly differentiated ESCC cells may have a greater effect on the ELD of iDCs than highly differentiated ESCC cells.
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Affiliation(s)
- Guoguo Jin
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Jimin Zhao
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Y I Yang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Kangdong Liu
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Yanan Jiang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Xiaoyan Zhang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Yanyan Zhang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Youtian Huang
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Jing Lu
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
| | - Ziming Dong
- Department of Pathophysiology, Basic Medical College, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China; Collaborative Innovation Center of Henan Province for Cancer Chemoprevention, Zhengzhou, Henan 450001, P.R. China
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19
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An immature B cell population from peripheral blood serves as surrogate marker for monitoring tumor angiogenesis and anti-angiogenic therapy in mouse models. Angiogenesis 2015; 18:327-45. [PMID: 26021306 DOI: 10.1007/s10456-015-9470-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 05/18/2015] [Indexed: 12/18/2022]
Abstract
Tumor growth depends on the formation of new blood vessels (tumor angiogenesis) either from preexisting vessels or by the recruitment of bone marrow-derived cells. Despite encouraging results obtained with preclinical cancer models, the therapeutic targeting of tumor angiogenesis has thus far failed to deliver an enduring clinical response in cancer patients. One major obstacle for improving anti-angiogenic therapy is the lack of validated biomarkers, which allow patient stratification for suitable treatment and a rapid assessment of therapy response. Toward these goals, we have employed several mouse models of tumor angiogenesis to identify cell populations circulating in their blood that correlated with the extent of tumor angiogenesis and therapy response. Flow cytometry analyses of different combinations of cell surface markers that define subsets of bone marrow-derived cells were performed on peripheral blood mononuclear cells from tumor-bearing and healthy mice. We identified one cell population, CD45(dim)VEGFR1(-)CD31(low), that was increased in levels during active tumor angiogenesis in a variety of transgenic and syngeneic transplantation mouse models of cancer. Treatment with various anti-angiogenic drugs did not affect CD45(dim)VEGFR1(-)CD31(low) cells in healthy mice, whereas in tumor-bearing mice, a consistent reduction in their levels was observed. Gene expression profiling of CD45(dim)VEGFR1(-)CD31(low) cells characterized these cells as an immature B cell population. These immature B cells were then directly validated as surrogate marker for tumor angiogenesis and of pharmacologic responses to anti-angiogenic therapies in various mouse models of cancer.
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20
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Schlereth SL, Refaian N, Iden S, Cursiefen C, Heindl LM. Impact of the prolymphangiogenic crosstalk in the tumor microenvironment on lymphatic cancer metastasis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:639058. [PMID: 25254213 PMCID: PMC4165560 DOI: 10.1155/2014/639058] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 08/14/2014] [Indexed: 02/08/2023]
Abstract
Lymphangiogenesis is a very early step in lymphatic metastasis. It is regulated and promoted not only by the tumor cells themselves, but also by cells of the tumor microenvironment, including cancer associated fibroblasts, mesenchymal stem cells, dendritic cells, or macrophages. Even the extracellular matrix as well as cytokines and growth factors are involved in the process of lymphangiogenesis and metastasis. The cellular and noncellular components influence each other and can be influenced by the tumor cells. The knowledge about mechanisms behind lymphangiogenesis in the tumor microenvironmental crosstalk is growing and offers starting points for new therapeutic approaches.
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Affiliation(s)
- Simona L. Schlereth
- Department of Ophthalmology, University of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
| | - Nasrin Refaian
- Department of Ophthalmology, University of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
| | - Sandra Iden
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
| | - Claus Cursiefen
- Department of Ophthalmology, University of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
| | - Ludwig M. Heindl
- Department of Ophthalmology, University of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
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21
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Cunha AD, Michelin MA, Murta EFC. Pattern response of dendritic cells in the tumor microenvironment and breast cancer. World J Clin Oncol 2014; 5:495-502. [PMID: 25114862 PMCID: PMC4127618 DOI: 10.5306/wjco.v5.i3.495] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Revised: 03/07/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
Breast cancer (BC) is the most common malignant neoplasm and the cause of death by cancer among women worldwide. Its development, including malignancy grade and patient prognosis, is influenced by various mutations that occur in the tumor cell and by the immune system’s status, which has a direct influence on the tumor microenvironment and, consequently, on interactions with non-tumor cells involved in the immunological response. Among the immune response cells, dendritic cells (DCs) play a key role in the induction and maintenance of anti-tumor responses owing to their unique abilities for antigen cross-presentation and promotion of the activation of specific lymphocytes that target neoplasic cells. However, the tumor microenvironment can polarize DCs, transforming them into immunosuppressive regulatory DCs, a tolerogenic phenotype which limits the activity of effector T cells and supports tumor growth and progression. Various factors and signaling pathways have been implicated in the immunosuppressive functioning of DCs in cancer, and researchers are working on resolving processes that can circumvent tumor escape and developing viable therapeutic interventions to prevent or reverse the expression of immunosuppressive DCs in the tumor microenvironment. A better understanding of the pattern of DC response in patients with BC is fundamental to the development of specific therapeutic approaches to enable DCs to function properly. Various studies examining DCs immunotherapy have demonstrated its great potential for inducing immune responses to specific antigens and thereby reversing immunosuppression and related to clinical response in patients with BC. DC-based immunotherapy research has led to immense scientific advances, both in our understanding of the anti-tumor immune response and for the treatment of these patients.
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22
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Stockmann C, Schadendorf D, Klose R, Helfrich I. The impact of the immune system on tumor: angiogenesis and vascular remodeling. Front Oncol 2014; 4:69. [PMID: 24782982 PMCID: PMC3986554 DOI: 10.3389/fonc.2014.00069] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 03/20/2014] [Indexed: 12/20/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels, as well as inflammation with massive infiltration of leukocytes are hallmarks of various tumor entities. Various epidemiological, clinical, and experimental studies have not only demonstrated a link between chronic inflammation and cancer onset but also shown that immune cells from the bone marrow such as tumor-infiltrating macrophages significantly influence tumor progression. Tumor angiogenesis is critical for tumor development as tumors have to establish a blood supply in order to progress. Although tumor cells were first believed to fuel tumor angiogenesis, numerous studies have shown that the tumor microenvironment and infiltrating immune cell subsets are important for regulating the process of tumor angiogenesis. These infiltrates involve the adaptive immune system including several types of lymphocytes as well as cells of the innate immunity such as macrophages, neutrophils, eosinophils, mast cells, dendritic cells, and natural killer cells. Besides their known immune function, these cells are now recognized for their crucial role in regulating the formation and the remodeling of blood vessels in the tumor. In this review, we will discuss for each cell type the mechanisms that regulate the vascular phenotype and its impact on tumor growth and metastasis.
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Affiliation(s)
- Christian Stockmann
- UMR 970, Paris Cardiovascular Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) , Paris , France
| | - Dirk Schadendorf
- Skin Cancer Unit, Dermatology Department, Medical Faculty, University Duisburg-Essen , Essen , Germany
| | - Ralph Klose
- UMR 970, Paris Cardiovascular Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) , Paris , France
| | - Iris Helfrich
- Skin Cancer Unit, Dermatology Department, Medical Faculty, University Duisburg-Essen , Essen , Germany
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23
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LU JING, BAI RUIHUA, QIN ZHENZHU, ZHANG YANYAN, ZHANG XIAOYAN, JIANG YANAN, YANG HONGYAN, HUANG YOUTIAN, LI GANG, ZHAO MINGYAO, DONG ZIMING. Differentiation of immature DCs into endothelial-like cells in human esophageal carcinoma tissue homogenates. Oncol Rep 2013; 30:739-44. [DOI: 10.3892/or.2013.2491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/02/2013] [Indexed: 11/06/2022] Open
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24
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Polverini PJ. Angiogenesis and wound healing: basic discoveries, clinical implications, and therapeutic opportunities. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/etp.12005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Gomes FG, Nedel F, Alves AM, Nör JE, Tarquinio SBC. Tumor angiogenesis and lymphangiogenesis: tumor/endothelial crosstalk and cellular/microenvironmental signaling mechanisms. Life Sci 2012. [PMID: 23178150 DOI: 10.1016/j.lfs.2012.10.008] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tumor angiogenesis and lymphangiogenesis are key features of tumor progression and metastasis. The role of tumor cells-derived factors in the promotion of associated angiogenesis and lymphangiogenesis is much studied and, no doubt, very important for the understanding of cancer progression. This review aims to present and discuss the work done on the pro-angiogenic and lymphangiogenic cellular interactions within the tumor microenvironment and the signaling pathways that regulate this crosstalk. Such multifactor studies are critical for the development of future therapeutic approaches for cancer because they take into account the complexities of cellular interactions within the tumor microenvironment.
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Affiliation(s)
- Fausto Gueths Gomes
- Nucleus of Cellular and Tecidual Biology (NCTBio), Department of Oral Pathology, School of Dentistry, Federal University of Pelotas, Brazil
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Cornelissen R, Lievense LA, Heuvers ME, Maat AP, Hendriks RW, Hoogsteden HC, Hegmans JP, Aerts JG. Dendritic cell-based immunotherapy in mesothelioma. Immunotherapy 2012; 4:1011-22. [DOI: 10.2217/imt.12.108] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesothelioma is a rare thoracic malignancy with a dismal prognosis. Current treatment options are scarce and clinical outcomes are rather disappointing. Due to the immunogenic nature of mesothelioma, several studies have investigated immunotherapeutic strategies to improve the prognosis of patients with mesothelioma. In the last decade, progress in knowledge of the modulation of the immune system to attack the tumor has been remarkable, but the optimal strategy for immunotherapy has yet to be unraveled. Because of their potent antigen-presenting capacity, dendritic cells are acknowledged as a promising agent in immunotherapeutic approaches in a number of malignancies. This review gives an update and provides a future perspective in which immunotherapy may improve the outcome of mesothelioma therapy.
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Affiliation(s)
- Robin Cornelissen
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Lysanne A Lievense
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Marlies E Heuvers
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Alexander P Maat
- Department of Thoracic Surgery, Erasmus Medical Center – Daniel den Hoed Cancer Center, University Medical Center, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Henk C Hoogsteden
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Joost P Hegmans
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
| | - Joachim G Aerts
- Department of Pulmonary Medicine, Erasmus MC, SV-125, PO-Box 2040, 3000 CA Rotterdam, The Netherlands
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Dendritic cells the tumor microenvironment and the challenges for an effective antitumor vaccination. J Biomed Biotechnol 2012; 2012:425476. [PMID: 22505809 PMCID: PMC3312387 DOI: 10.1155/2012/425476] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 10/28/2011] [Accepted: 11/11/2011] [Indexed: 12/23/2022] Open
Abstract
Many clinical trials have been carried out or are in progress to assess the therapeutic potential of dendritic-cell- (DC-) based vaccines on cancer patients, and recently the first DC-based vaccine for human cancer was approved by the FDA. Herewith, we describe the general characteristics of DCs and different strategies to generate effective antitumor DC vaccines. In recent years, the relevance of the tumor microenvironment in the progression of cancer has been highlighted. It has been shown that the tumor microenvironment is capable of inactivating various components of the immune system responsible for tumor clearance. In particular, the effect of the tumor microenvironment on antigen-presenting cells, such as DCs, does not only render these immune cells unable to induce specific immune responses, but also turns them into promoters of tumor growth. We also describe strategies likely to increase the efficacy of DC vaccines by reprogramming the immunosuppressive nature of the tumor microenvironment.
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Osterbur J, Sprague L, Muccioli M, Pate M, Mansfield K, McGinty J, Li Y, Li Y, Shirure V, Courreges MC, Benencia F. Adhesion to substrates induces dendritic cell endothelization and decreases immunological response. Immunobiology 2012; 218:64-75. [PMID: 22551928 DOI: 10.1016/j.imbio.2012.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 02/01/2012] [Accepted: 02/04/2012] [Indexed: 11/18/2022]
Abstract
Dendritic cells (DCs) are antigen presenting cells capable of inducing specific immune responses against microbial infections, transplant antigens, or tumors. DCs have been shown to possess a high plasticity showing different phenotypes in response to their microenvironment. For example, tumor-associated DCs can acquire an angiogenic phenotype thus promoting tumor growth. Further, DCs cultured in vitro under different conditions are able to upregulate the expression of endothelial markers and to express angiogenic factors. Indeed, it has been shown that soluble factors such as VEGF of PGE-2, that are present in the microenvironment of several tumors, affect the biology of these cells. We hypothesize that in addition to soluble factors the adhesion to different substrates will also define the phenotype and function of DCs. Herewith we demonstrate that murine myeloid(m) DCs upregulate endothelial markers such as VE-Cadherin, and to a lesser extent TIE-2, and decrease their immune capabilities when cultured on solid surfaces as compared with the same cells cultured on ultra-low binding (ULB) surfaces. On the other hand, the expression of angiogenic molecules at the level of RNA was not different among these cultures. In order to further investigate this phenomenon we used the murine ID8 model of ovarian cancer which can generate solid tumors when cancer cells are injected subcutaneously or a malignant ascites when they are injected intraperitoneally. This model gave us the unique opportunity to investigate DCs in suspension or attached to solid surfaces under the influence of the same tumor cells. We were able to determine that DCs present in solid tumors showed higher levels of expression of endothelial markers and angiogenic molecules but were not able to respond to inflammatory stimuli at the same extent as DCs recovered from ascites. Moreover, mDCs cultured on ULB surfaces in the presence of tumor factors do not expressed endothelial markers. Taking into account all these data we consider that tumor factors might be responsible for inducing angiogenic properties in DCs, but that in some settings the expression of endothelial markers such as VE-Cadherin and TIE-2 might be a function of attachment to solid surfaces and independent of the angiogenic properties of these cells.
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Affiliation(s)
- Jacob Osterbur
- Department of Biomedical Sciences, College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
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Abstract
INTRODUCTION Defibrotide is a polydisperse oligonucleotide obtained from porcine intestinal mucosa and prepared by controlled depolymerization of DNA. It is a nucleic acid polymer, predominantly single-stranded, which has anti-ischemic and anti-thrombotic properties. AREAS COVERED The efficacy and safety of defibrotide in the treatment of veno-occlusive disease (VOD) occurring after high-dose chemotherapy and hematopoietic stem-cell transplantation is now well established in Phase II - III trials. A recent randomized, Phase III trial in pediatric patients has also demonstrated its role in the prevention of VOD. Preclinical studies reported the inhibitory effects of defibrotide on myeloma cells' growth through an antiangiogenic action and a regulation of the tumor-microenvironment interactions. A recent Phase II trial underlines the efficacy and safety of defibrotide-thalidomide-melphalan combination in the treatment of relapsed/refractory multiple myeloma. EXPERT OPINION Defibrotide may be effective in the prophylaxis and the treatment of veno-occlusive disease. Recent experimental results suggest that defibrotide may belong to the new generation of anti-cancer drugs that can prevent tumor angiogenesis. In multiple myeloma, defibrotide may overcome the prothrombotic effect of thalidomide on endothelial cells. Further preclinical and clinical investigations are needed to assess the precise role of defibrotide in the treatment of patients with multiple myeloma.
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Sprague L, Muccioli M, Pate M, Meles E, McGinty J, Nandigam H, Venkatesh AK, Gu MY, Mansfield K, Rutowski A, Omosebi O, Courreges MC, Benencia F. The interplay between surfaces and soluble factors define the immunologic and angiogenic properties of myeloid dendritic cells. BMC Immunol 2011; 12:35. [PMID: 21645356 PMCID: PMC3124423 DOI: 10.1186/1471-2172-12-35] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2010] [Accepted: 06/06/2011] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Dendritic cells (DCs) are antigen presenting cells capable of inducing specific immune responses against microbial infections, transplant antigens, or tumors. Interestingly, microenvironment conditions such as those present in tumor settings might induce a DC phenotype that is poorly immunogenic and with the capability of promoting angiogenesis. We hypothesize that this plasticity may be caused not only by the action of specific cytokines or growth factors but also by the properties of the surfaces with which they interact, such as extracellular matrix (ECM) components. RESULTS Herewith we studied the effect of different surfaces and soluble factors on the biology of DCs. To accomplish this, we cultured murine myeloid(m) DCs on surfaces coated with fibronectin, collagen I, gelatin, and Matrigel using poly-D-lysine and polystyrene as non-biological surfaces. Further, we cultured these cells in the presence of regular DC medium (RPMI 10% FBS) or commercially available endothelial medium (EGM-2). We determined that mDCs could be kept in culture up to 3 weeks in these conditions, but only in the presence of GM-CSF. We were able to determine that long-term DC cultures produce an array of angiogenic factors, and that some of these cultures still retain the capability to induce T cell responses. CONCLUSIONS Altogether these data indicate that in order to design DC-based vaccines or treatments focused on changing the phenotype of DCs associated with diseases such as cancer or atherosclerosis, it becomes necessary to fully investigate the microenvironment in which these cells are present or will be delivered.
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Affiliation(s)
- Leslee Sprague
- Biomedical Engineering Program, Russ College of Engineering and Technology, Ohio University, USA
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Muccioli M, Pate M, Omosebi O, Benencia F. Generation and labeling of murine bone marrow-derived dendritic cells with Qdot nanocrystals for tracking studies. J Vis Exp 2011:2785. [PMID: 21673641 PMCID: PMC3197051 DOI: 10.3791/2785] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Dendritic cells (DCs) are professional antigen presenting cells (APCs) found in peripheral tissues and in immunological organs such as thymus, bone marrow, spleen, lymph nodes and Peyer's patches 1-3. DCs present in peripheral tissues sample the organism for the presence of antigens, which they take up, process and present in their surface in the context of major histocompatibility molecules (MHC). Then, antigen-loaded DCs migrate to immunological organs where they present the processed antigen to T lymphocytes triggering specific immune responses. One way to evaluate the migratory capabilities of DCs is to label them with fluorescent dyes 4. Herewith we demonstrate the use of Qdot fluorescent nanocrystals to label murine bone marrow-derived DC. The advantage of this labeling is that Qdot nanocrystals possess stable and long lasting fluorescence that make them ideal for detecting labeled cells in recovered tissues. To accomplish this, first cells will be recovered from murine bone marrows and cultured for 8 days in the presence of granulocyte macrophage-colony stimulating factor in order to induce DC differentiation. These cells will be then labeled with fluorescent Qdots by short in vitro incubation. Stained cells can be visualized with a fluorescent microscopy. Cells can be injected into experimental animals at this point or can be into mature cells upon in vitro incubation with inflammatory stimuli. In our hands, DC maturation did not determine loss of fluorescent signal nor does Qdot staining affect the biological properties of DCs. Upon injection, these cells can be identified in immune organs by fluorescent microscopy following typical dissection and fixation procedures.
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Affiliation(s)
- Maria Muccioli
- Molecular and Cell Biology Program, Ohio University, USA
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Lu J, Zhao J, Zhao J, Ma J, Liu K, Yang H, Huang Y, Qin Z, Bai R, Li P, Yan W, Zhao M, Dong Z. VEGF-A-induced immature DCs not mature DCs differentiation into endothelial-like cells through ERK1/2-dependent pathway. Cell Biochem Funct 2011; 29:294-302. [DOI: 10.1002/cbf.1752] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 02/14/2011] [Accepted: 02/18/2011] [Indexed: 11/08/2022]
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Richardson P, Linden E, Revta C, Ho V. Use of defibrotide in the treatment and prevention of veno-occlusive disease. Expert Rev Hematol 2011; 2:365-76. [PMID: 21082942 DOI: 10.1586/ehm.09.30] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Hepatic veno-occlusive disease (VOD) is one of the most important complications of high-dose chemotherapy and stem cell transplantation. VOD is a clinical syndrome characterized by jaundice, hepatic enlargement and fluid retention typically seen by day +30 after transplantation. Severe VOD is complicated by multiorgan failure and a high mortality rate approaching 100%. Defibrotide (DF) is a novel agent with both antithrombotic and fibrinolytic properties that has emerged as an effective therapy for severe VOD. In Phase II studies, treatment of severe VOD has resulted in complete responses of 30-60% and survival past day 100 ranging between 32-50%. A Phase III, historically controlled study of DF for treatment of severe VOD has recently been completed and results are awaited with interest. In addition, DF may be effective prophylaxis for VOD in high-risk patients. This review will focus on a summary of the pharmacology of DF and the clinical evidence for its use in VOD.
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Affiliation(s)
- Paul Richardson
- Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02115, USA.
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Lindenberg JJ, Fehres CM, van Cruijsen H, Oosterhoff D, de Gruijl TD. Cross-talk between tumor and myeloid cells: how to tip the balance in favor of antitumor immunity. Immunotherapy 2011; 3:77-96. [DOI: 10.2217/imt.10.95] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Myeloid differentiation is often disturbed in cancer, leading to reduced frequencies of immunostimulatory dendritic cells and an over-representation of immunosuppressive immature myeloid cells, granulocytes and macrophages. As a result of this skewed myeloid differentiation, a highly immunosuppressive myeloid subset becomes prevalent during cancer development; these myeloid-derived suppressor cells are also recruited as a collateral to certain protumorigenic inflammatory processes, resulting in an effective downregulation of T-cell-mediated immune surveillance and antitumor immunity. In this article, some of the important myeloid cell subsets and mediators involved in cancer-related immune suppression are reviewed. Furthermore, cross-talk between tumors and the myeloid compartment, and ways in which it can suppress effective cell-mediated immunity, are discussed, as well as possible therapeutic approaches to tip the balance in favor of antitumor immunity.
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Affiliation(s)
- Jelle J Lindenberg
- Department of Medical Oncology, Immunotherapy Laboratory, VU University Medical Center CCA2.22, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Cynthia M Fehres
- Department of Medical Oncology, Immunotherapy Laboratory, VU University Medical Center CCA2.22, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Hester van Cruijsen
- Department of Medical Oncology, Immunotherapy Laboratory, VU University Medical Center CCA2.22, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Dinja Oosterhoff
- Department of Medical Oncology, Immunotherapy Laboratory, VU University Medical Center CCA2.22, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
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Lymphocyte subpopulation and dendritic cell phenotyping during antineoplastic therapy in human solid tumors. Clin Exp Med 2010; 11:199-210. [PMID: 21161672 DOI: 10.1007/s10238-010-0120-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Accepted: 10/29/2010] [Indexed: 12/21/2022]
Abstract
Patients with cancer show variable levels of immunosuppression at the time of the presentation, and cytotoxic antineoplastic therapy is the primary contributor to the clinical immunodeficiency often observed during the course of the disease. In both hematological and solid tumors, this phenomenon is primarily related to the T-cell depletion associated with inhibition of dendritic cell ability to induce both primary and secondary T- and B-cell responses. Complete restoration of immunocompetence following antineoplastic therapy implicates the progressive recovery of various cell subpopulations, and it is a complex process that also depends on the type, the dose, the scheduling, and the associations of the employed drugs. In the era of target therapies, several antiangiogenic drugs are increasingly used in combination with standard chemotherapy in the treatment of advanced solid tumors. Their clinical efficacy has been recently related not only to the specific antiangiogenic properties but also to an indirect hypothetical effect on the host immune system. In the present work, we have reviewed the most recent information regarding (1) the capacity of standard antineoplastic therapy to induce and maintain an immunodeficiency in patients with solid tumors and (2) the influence of the antiangiogenic treatment in association with standard chemotherapy on lymphocyte and dendritic cell subsets and the possible resulting additional antitumor mechanism.
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36
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Lu J, Zhao J, Liu K, Zhao J, Yang H, Huang Y, Qin Z, Bai R, Li P, Ma J, Yan W, Zhao M, Dong Z. MAPK/ERK1/2 signaling mediates endothelial-like differentiation of immature DCs in the microenvironment of esophageal squamous cell carcinoma. Cell Mol Life Sci 2010; 67:2091-106. [PMID: 20221785 PMCID: PMC11115913 DOI: 10.1007/s00018-010-0316-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Revised: 02/09/2010] [Accepted: 02/15/2010] [Indexed: 10/19/2022]
Abstract
Endothelial-like differentiation of dendritic cells (DCs) is a new phenomenon, and the mechanism is still elusive. Here, we show that the tumor microenvironment derived from the human esophageal squamous cell carcinoma (ESCC) cell line EC9706 can induce immature DCs (iDCs) differentiate toward endothelial cells, and become endothelial-like cells, but it has no obvious influence on mature DCs. During the course of endothelial-like differentiation of iDCs, a sustained activation of mitogen-activated protein kinase/extracelluar signal-regulated kinase1/2 (MAPK/ERK1/2) and cAMP response element-binding protein (CREB) was detected. Incubation of iDCs with MEK phosphorylation inhibitor PD98059 blocked the MAPK/ERK1/2 and CREB phosphorylation as well as the endothelial-like differentiation of iDCs. Inhibition of vascular endothelial growth factor-A (VEGF-A) in the microenvironment with its antibody blocked the endothelial-like differentiation and the phosphorylation of MAPK/ERK1/2 and CREB. These data suggest that MAPK/ERK1/2 signaling pathway activated by VEGF-A could mediate endothelial-like differentiation of iDCs in the ESCC microenvironment.
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Affiliation(s)
- Jing Lu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China.
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Miloud T, Hämmerling GJ, Garbi N. Review of murine dendritic cells: types, location, and development. Methods Mol Biol 2010; 595:21-42. [PMID: 19941103 DOI: 10.1007/978-1-60761-421-0_2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Dendritic cells (DCs) are key coordinators of the immune response, governing the choice between tolerance and immunity. DCs are professional antigen-presenting cells capable of presenting antigen on MHC molecules and priming CD4 and CD8 T-cell responses. They form a heterogeneous group of cells based on phenotype, location, and function. In this review, murine DCs will be discussed regarding their function with special emphasis on their tissue distribution. Recent findings on DC homeostasis during cancer progression will be presented. Finally, the developmental pathways leading to DC differentiation from their precursors will be summarized.
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Affiliation(s)
- Tewfik Miloud
- Division of Molecular Immunology, German Cancer Research Center DKFZ, Heidelberg, Germany
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Venanzi FM, Petrini M, Fiammenghi L, Bolli E, Granato AM, Ridolfi L, Gabrielli F, Barucca A, Concetti A, Ridolfi R, Riccobon A. Tumor endothelial marker 8 expression levels in dendritic cell-based cancer vaccines are related to clinical outcome. Cancer Immunol Immunother 2010; 59:27-34. [PMID: 19440709 PMCID: PMC11029884 DOI: 10.1007/s00262-009-0717-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Accepted: 04/17/2009] [Indexed: 01/24/2023]
Abstract
Previous studies have shown that tumor endothelial markers (TEMs 1-9) are up modulated in immunosuppressive, pro-angiogenic dendritic cells (DCs) found in tumor microenvironments. We recently reported that monocyte-derived DCs used for vaccination trials may accumulate high levels of TEM8 gene transcripts. Here, we investigate whether TEM8 expression in DC preparations represents a specific tumor-associated change of potential clinical relevance. TEM8 expression at the mRNA and protein level was evaluated by quantitative real-time RT-PCR and cytofluorimetric analysis in human clinical grade DCs utilized for the therapeutic vaccination of 17 advanced cancer patients (13 melanoma and 4 renal cell carcinoma). The analyses revealed that DCs from patients markedly differ in their ability to up-modulate TEM8. Indeed, mDCs from eight non-progressing patients [median overall survival (OS) = 32 months, all positive to the delayed-type hypersensitivity test (DTH)], had similar TEM8 mRNA expression levels [mDCs vs. immature iDCs; mean fold increase (mfi) = 1.97] to those found in healthy donors (mfi = 2.7). Conversely, mDCs from nine progressing patients (OS < 5 months, all but one with negative DTH) showed an increase in TEM8 mRNA levels (mfi = 12.88, p = 0.0018). The present observations suggest that TEM8 expression levels in DC-based therapeutic vaccines would allow the selection of a subgroup of patients who are most likely to benefit from therapeutic vaccination.
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Affiliation(s)
- Franco Maria Venanzi
- Unit of Translational Biology, Department of Biology M.C.A., University of Camerino, via Gentile da Varano III, Camerino (MC), Italy.
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Morabito F, Gentile M, Gay F, Bringhen S, Mazzone C, Vigna E, Musto P, Di Raimondo F, Palumbo A. Insights into defibrotide: an updated review. Expert Opin Biol Ther 2009; 9:763-72. [PMID: 19456210 DOI: 10.1517/14712590903008507] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Defibrotide is a polydisperse oligonucleotide with antiatherosclerotic, anti-inflammatory, anti-ischaemic, pro-fibrinolytic and antithrombotic actions without significant systemic anticoagulant effects. It has been used in the treatment of various cardiovascular disorders, and especially in endothelial complications of allogeneic stem-cell transplantation. We reviewed the published work for the mechanism of action and clinical use of defibrotide to consolidate data and to describe new applications of this drug. We reviewed the most relevant papers on defibrotide published from November 1982 to January 2008. (selected through PubMed), and used recent meeting abstracts as sources for this review. Reports have suggested that defibrotide has clinical efficacy for treatment and prophylaxis of hepatic sinusoidal obstruction syndrome occurring after stem-cell transplantation. Animal models have clearly shown the potential antineoplastic effect of this drug. Further clinical investigations are needed to clarify this new application.
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Affiliation(s)
- F Morabito
- Unità Operativa Complessa di Ematologia, Dipartimento di Medicina Interna, Azienda Ospedaliera di Cosenza, Viale della Repubblica, Cosenza 87100, Italy.
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Abstract
Both innate and adaptive immune cells are involved in the mechanisms of endothelial cell proliferation, migration and activation, through the production and release of a large spectrum of pro-angiogenic mediators. These may create the specific microenvironment that favours an increased rate of tissue vascularization. In this review, we will focus on the immune cell component of the angiogenic process in inflammation and tumour growth. As angiogenesis is the result of a net balance between the activities exerted by positive and negative regulators, we will also provide information on some antiangiogenic properties of immune cells that may be utilized for a potential pharmacological use as antiangiogenic agents in inflammation as well as in cancer.
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Affiliation(s)
- Domenico Ribatti
- Department of Human Anatomy and Histology, University of Bari Medical School, Bari, Italy.
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41
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Scholz C, Toth B, Santoso L, Kuhn C, Franz M, Mayr D, Jeschke U, Friese K, Schiessl B. Distribution and maturity of dendritic cells in diseases of insufficient placentation. Am J Reprod Immunol 2008; 60:238-45. [PMID: 18782285 DOI: 10.1111/j.1600-0897.2008.00619.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
PROBLEM The immunological equilibrium at the feto-maternal interphase contributes towards late gestational diseases like growth restriction (IUGR) pre-eclampsia (PE) and hemolysis, elevated liver enzymes, low platelets (HELLP)-syndrome. The state of activation of decidual dendritic cells (DC) has emerged as one of the central players influencing this immunological equilibrium. METHOD OF STUDY Paraffin-embedded tissue sections from 27 pregnancies were immunostained for DC markers DEC-205, DC-SIGN, DC-LAMP and costained for DC-SIGN/CD56 and DC-SIGN/ vascular endothelial growth factor receptor (VEGFR) -1 and -2. We investigated placental tissue of IUGR fetuses and of patients who developed PE or HELLP-syndrome as well as placental tissue derived from normal pregnancies. RESULTS We found that expression of DEC-205 and DC-SIGN was significantly upregulated in HELLP placentas, whereas expression of DC-LAMP was abrogated almost entirely. Costaining showed an interaction between DC-SIGN(+) DC and natural killer cells as well as costaining of VEGFR-1 and -2 and DC-SIGN. Pre-eclamptic and IUGR placentas showed no significant change in any of the investigated markers compared to normal controls. CONCLUSION Our data suggest a participation of DC-mediated immunological mechanisms in HELLP syndrome.
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Affiliation(s)
- Christoph Scholz
- Department of Obstetrics and Gynecology - Maistrasse, Ludwig-Maximilians University, Munich, Germany
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Larocca A, Cavallo F, Magarotto V, Rossi D, Patriarca F, Boccadoro M, Palumbo A. Defibrotide: a review on clinical use and future development. Expert Opin Biol Ther 2008; 8:1201-12. [PMID: 18613771 DOI: 10.1517/14712598.8.8.1201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Defibrotide is a deoxyribonucleic acid derivative that has been developed for the treatment of different vascular disorders. OBJECTIVE The authors reviewed the literature to give due representation to the spectrum of pharmacological properties and clinical application of this drug, evaluating consolidate and innovative application. METHODS The authors used PubMed from November 1982 to December 2007 and meeting abstracts (form American Society of Hematology Annual Meeting) with updated data as the sources for this review and selecting the most relevant papers when two or more articles covered the same point of interest. CONCLUSIONS Defibrotide has been used effectively in the treatment of endothelial complications of allogeneic stem cell transplantation and recent preclinical evidences suggest an antiangiogenic effect and an anticancer activity. Further in vivo and in vitro investigations are needed.
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Affiliation(s)
- A Larocca
- Divisione di Ematologia dell'Università di Torino, Azienda Ospedaliero Universitaria San Giovanni Battista, Torino, Italy
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Lactate stimulates vasculogenic stem cells via the thioredoxin system and engages an autocrine activation loop involving hypoxia-inducible factor 1. Mol Cell Biol 2008; 28:6248-61. [PMID: 18710947 DOI: 10.1128/mcb.00795-08] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The recruitment and differentiation of circulating stem/progenitor cells (SPCs) in subcutaneous Matrigel in mice was assessed. There were over one million CD34(+) SPCs per Matrigel plug 18 h after Matrigel implantation, and including a polymer to elevate the lactate concentration increased the number of SPCs by 3.6-fold. Intricate CD34(+) cell-lined channels were linked to the systemic circulation, and lactate accelerated cell differentiation as evaluated based on surface marker expression and cell cycle entry. CD34(+) SPCs from lactate-supplemented Matrigel exhibited significantly higher concentrations of thioredoxin 1 (Trx1) and hypoxia-inducible factor 1 (HIF-1) than cells from unsupplemented Matrigel, whereas Trx1 and HIF-1 in CD45(+) leukocytes were not elevated by lactate. Results obtained using small inhibitory RNA (siRNA) specific to HIF-1 and mice with conditionally HIF-1 null myeloid cells indicated that SPC recruitment and lactate-mediated effects were dependent on HIF-1. Cells from lactate-supplemented Matrigel had higher concentrations of phosphorylated extracellular signal-regulated kinases 1 and 2, Trx1, Trx reductase (TrxR), vascular endothelial growth factor (VEGF), and stromal cell-derived factor 1 (SDF-1) than cells from unsupplemented Matrigel. SPC recruitment and protein changes were inhibited by siRNA specific to lactate dehydrogenase, TrxR, or HIF-1 and by oxamate, apocynin, U0126, N-acetylcysteine, dithioerythritol, and antibodies to VEGF or SDF-1. Oxidative stress from lactate metabolism by SPCs accelerated further SPC recruitment and differentiation through Trx1-mediated elevations in HIF-1 levels and the subsequent synthesis of HIF-1-dependent growth factors.
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Murdoch C, Muthana M, Coffelt SB, Lewis CE. The role of myeloid cells in the promotion of tumour angiogenesis. Nat Rev Cancer 2008; 8:618-31. [PMID: 18633355 DOI: 10.1038/nrc2444] [Citation(s) in RCA: 1195] [Impact Index Per Article: 74.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The use of various transgenic mouse models and analysis of human tumour biopsies has shown that bone marrow-derived myeloid cells, such as macrophages, neutrophils, eosinophils, mast cells and dendritic cells, have an important role in regulating the formation and maintenance of blood vessels in tumours. In this Review the evidence for each of these cell types driving tumour angiogenesis is outlined, along with the mechanisms regulating their recruitment and activation by the tumour microenvironment. We also discuss the therapeutic implications of recent findings that specific myeloid cell populations modulate the responses of tumours to agents such as chemotherapy and some anti-angiogenic therapies.
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Affiliation(s)
- Craig Murdoch
- Department of Oral and Maxillofacial Surgery, School of Clinical Dentistry, Beech Hill Road, University of Sheffield, Sheffield, UK
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Shen R, Ye Y, Chen L, Yan Q, Barsky SH, Gao JX. Precancerous stem cells can serve as tumor vasculogenic progenitors. PLoS One 2008; 3:e1652. [PMID: 18286204 PMCID: PMC2242848 DOI: 10.1371/journal.pone.0001652] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Accepted: 01/22/2008] [Indexed: 12/26/2022] Open
Abstract
Tumor neo-vascularization is critical for tumor growth, invasion and metastasis, which has been considered to be mediated by a mechanism of angiogenesis. However, histopathological studies have suggested that tumor cells might be the progenitor for tumor vasculature. Recently, we have reported that the precancerous stem cells (pCSCs) representing the early stage of developing cancer stem cells (CSCs), have the potential for both benign and malignant differentiation. Therefore, we investigated whether pCSCs serve as progenitors for tumor vasculogenesis. Herein, we report that in the pCSC-derived tumors, most blood vessels were derived from pCSCs. Some pCSCs constitutively expressed vasculogenic receptor VEGFR-2, which can be up-regulated by hypoxia and angiogenesis-promoting cytokines, such as GM-CSF, Flt3 ligand, and IL-13. The pCSCs are much more potent in tumor vasculogenesis than the differentiated tumor monocytic cells (TMCs) from the same tumor, which had comparable or even higher capacity to produce some vascular growth factors, suggesting that the potent tumor vasculogenesis of pCSCs is associated with their intrinsic stem-like property. Consistently tumor vasculogenesis was also observed in human cancers such as cervical cancer and breast cancer and xenograft lymphoma. Our studies indicate that pCSCs can serve as tumor vasculogenic stem/progenitor cells (TVPCs), and may explain why anti-angiogenic cancer therapy trials are facing challenge.
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Affiliation(s)
- Rulong Shen
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
| | - Yin Ye
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
| | - Li Chen
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
| | - Qingtao Yan
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
| | - Sanford H. Barsky
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
- *E-mail: (SHB); (J-XG)
| | - Jian-Xin Gao
- Department of Pathology and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, United States of America
- *E-mail: (SHB); (J-XG)
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McLean K, Buckanovich RJ. Myeloid cells functioning in tumor vascularization as a novel therapeutic target. Transl Res 2008; 151:59-67. [PMID: 18201673 DOI: 10.1016/j.trsl.2007.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Accepted: 11/13/2007] [Indexed: 11/16/2022]
Abstract
Angiogenesis, the sprouting of new blood vessels to sustain growth, is an important new target in solid tumor therapy. Initial studies focused on the role of the tumor cell in promoting angiogenesis; yet more recent work has demonstrated that host cells in the tumor microenvironment also play a critical role in tumor vascularization. Additionally, vasculogenesis in which new blood vessels develop from vascular progenitor cells also contributes to tumor growth. Recent studies propose a central role for cells of the myeloid lineage in triggering vessel growth by releasing angiogenic factors and perhaps by incorporating directly into nascent blood vessels. We will review studies that support a critical role for myeloid cells in neovascularization, with a focus on cells that express various monocytic/dendritic cell markers, including vascular leukocytes (VLCs), Tie2+ monocytes, and vascular endothelial growth factor receptor 2 (VEGFR2)+ monocytes, among others. The evidence that these myeloid cells represent bona fide therapeutic targets for solid tumors will be reviewed. Finally, we will address some controversies and challenges in the field with a focus on future directions.
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Affiliation(s)
- Karen McLean
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor, Mich, USA
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Sozzani S, Rusnati M, Riboldi E, Mitola S, Presta M. Dendritic cell–endothelial cell cross-talk in angiogenesis. Trends Immunol 2007; 28:385-92. [PMID: 17692569 DOI: 10.1016/j.it.2007.07.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2007] [Revised: 06/25/2007] [Accepted: 07/31/2007] [Indexed: 12/30/2022]
Abstract
Dendritic cells (DCs) are professional antigen-presenting cells that have a pivotal role in the onset and regulation of adaptive immune responses. DCs have the ability to regulate inflammation through their capacity to release cytokines and chemokines and kill pathogens, which they share with other phagocytes. Recent observations have shown that different DC subsets produce and release various pro- and anti-angiogenic mediators depending on their activation status and cytokine milieu. In particular, alternatively activated DCs exert a potent pro-angiogenic activity that is mediated by the prototypic angiogenic growth factor vascular endothelial growth factor-A (VEGF-A). In turn, pro- and anti-angiogenic mediators can affect the biology of DCs, modulating their differentiation and maturation. Finally, DCs can trans-differentiate into endothelial-like cells, possibly contributing to vasculogenesis in the adult. Thus, DCs might exert an important impact on the neovascularization process in different physiopathological conditions.
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Affiliation(s)
- Silvano Sozzani
- Unit of General Pathology and Immunology, Department of Biomedical Sciences and Biotechnology, University of Brescia, Viale Europa 11, 25123 Brescia, Italy.
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