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Guan XL, Guan XY, Zhang ZY. Roles and application of exosomes in the development, diagnosis and treatment of gastric cancer. World J Gastrointest Oncol 2024; 16:630-642. [PMID: 38577463 PMCID: PMC10989387 DOI: 10.4251/wjgo.v16.i3.630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/18/2023] [Accepted: 01/15/2024] [Indexed: 03/12/2024] Open
Abstract
As important messengers of intercellular communication, exosomes can regulate local and distant cellular communication by transporting specific exosomal contents and can also promote or suppress the development and progression of gastric cancer (GC) by regulating the growth and proliferation of tumor cells, the tumor-related immune response and tumor angiogenesis. Exosomes transport bioactive molecules including DNA, proteins, and RNA (coding and noncoding) from donor cells to recipient cells, causing reprogramming of the target cells. In this review, we will describe how exosomes regulate the cellular immune response, tumor angiogenesis, proliferation and metastasis of GC cells, and the role and mechanism of exosome-based therapy in human cancer. We will also discuss the potential application value of exosomes as biomarkers in the diagnosis and treatment of GC and their relationship with drug resistance.
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Affiliation(s)
- Xiao-Li Guan
- Department of General Medicine, The Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China
| | - Xiao-Ying Guan
- Department of Pathology, The Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China
| | - Zheng-Yi Zhang
- Department of General Medicine, The Second Hospital of Lanzhou University, Lanzhou 730030, Gansu Province, China
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2
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Lu Y, Ye H, Zhao J, Wang K, Fan X, Lu Q, Cao L, Wan B, Liu F, Sun F, Chen X, He Z, Liu H, Sun J. Small EV-based delivery of CpG ODNs for melanoma postsurgical immunotherapy. J Control Release 2023; 363:484-495. [PMID: 37778468 DOI: 10.1016/j.jconrel.2023.07.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/14/2023] [Accepted: 07/22/2023] [Indexed: 10/03/2023]
Abstract
Blocking programmed cell death protein 1 (PD-1) is an effective therapeutic strategy for melanoma. However, patients often develop tumor recurrence postoperatively due to the low response rate to the anti-PD-1 antibody (aPD-1). In this study, we developed an in situ sprayable fibrin gel that contains cytosine-guanine oligodeoxynucleotides (CpG ODNs)-modified ovalbumin (OVA) antigen-expressing bone marrow dendritic cell (DC)-derived small extracellular vesicles (DC-sEVs) and aPD-1. CpG ODNs can activate DCs, which have potent immunostimulatory effects, by stimulating both the maturation and activation of tumor-infiltrating dendritic cells (TIDCs) and DCs in tumor-draining lymph nodes (TDLNs). In addition, DC-sEVs can deliver OVA to the same DCs, leading to the specific expression of tumor antigens by antigen-presenting cells (APCs). In brief, the unique synergistic combination of aPD-1 and colocalized delivery of immune adjuvants and tumor antigens enhances antitumor T-cell immunity, not only in the tumor microenvironment (TME) but also in TDLNs. This effectively attenuates local tumor recurrence and metastasis. Our results suggest that dual activation by CpG ODNs prolongs the survival of mice and decreases the recurrence rate in an incomplete tumor resection model, providing a promising approach to prevent B16-F10-OVA melanoma tumor recurrence and metastasis.
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Affiliation(s)
- Yutong Lu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Hao Ye
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics & Intelligent Systems (IRIS), ETH Zurich, Zurich 8092, Switzerland
| | - Jian Zhao
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Kaiyuan Wang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Xiaoyuan Fan
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Qi Lu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Liping Cao
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Bin Wan
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Fengxiang Liu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Fei Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Xiaofeng Chen
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China
| | - Hongzhuo Liu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China.
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning 110016, PR China.
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Vibrio cholerae Porin OmpU Activates Dendritic Cells via TLR2 and the NLRP3 Inflammasome. Infect Immun 2023; 91:e0033222. [PMID: 36794951 PMCID: PMC9933687 DOI: 10.1128/iai.00332-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
OmpU is one of the major porins of Vibrio cholerae, a Gram-negative human pathogen. Previously, we showed that OmpU stimulates host monocytes and macrophages and induces the production of proinflammatory mediators via activation of the Toll-like receptor 1/2 (TLR1/2)-MyD88-dependent pathways. In the present study, we show that OmpU activates murine dendritic cells (DCs) via activation of the TLR2-mediated pathway and the NLRP3 inflammasome, leading to the production of proinflammatory cytokines and DC maturation. Our data reveal that although TLR2 plays an important role in providing both priming and the activation signal for the NLRP3 inflammasome in OmpU-activated DCs, OmpU is capable of activating the NLRP3 inflammasome, even in the absence of TLR2, if a priming signal is given. Furthermore, we show that the OmpU-mediated interleukin-1β (IL-1β) production in DCs depends on calcium flux and mitochondrial reactive oxygen species (mitoROS) generation. Interestingly, both OmpU translocation to the mitochondria of DCs as well as calcium signaling contribute to mitoROS production and prompt NLRP3 inflammasome activation. We also demonstrate that OmpU induces downstream signaling via activation of phosphoinositide-3-kinase (PI3K)-AKT, protein kinase C (PKC), mitogen-activated protein kinases (MAPKs), and transcription factor NF-κB. Furthermore, our data reveal that OmpU-mediated activation of TLR2 induces signaling via PKC, MAPKs p38 and extracellular signal-regulated kinase (ERK), and transcription factor NF-κB; however, PI3K and MAPK Jun N-terminal protein kinase (JNK) are activated in TLR2 independent manner.
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Exosomes and cancer - Diagnostic and prognostic biomarkers and therapeutic vehicle. Oncogenesis 2022; 11:54. [PMID: 36109501 PMCID: PMC9477829 DOI: 10.1038/s41389-022-00431-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractExosomes belong to a subpopulation of extracellular vesicles secreted by the dynamic multistep endocytosis process and carry diverse functional molecular cargoes, including proteins, lipids, nucleic acids (DNA, messenger and noncoding RNA), and metabolites to promote intercellular communication. Proteins and noncoding RNA are among the most abundant contents in exosomes; they have biological functions and are selectively packaged into exosomes. Exosomes derived from tumor, stromal and immune cells contribute to the multiple stages of cancer progression as well as resistance to therapy. In this review, we will discuss the biogenesis of exosomes and their roles in cancer development. Since specific contents within exosomes originate from their cells of origin, this property allows exosomes to function as valuable biomarkers. We will also discuss the potential use of exosomes as diagnostic and prognostic biomarkers or predictors for different therapeutic strategies for multiple cancers. Furthermore, the applications of exosomes as direct therapeutic targets or engineered vehicles for drugs are an important field of exosome study. Better understanding of exosome biology may pave the way to promising exosome-based clinical applications.
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Harnessing the Therapeutic Potential of Exosomes: A Novel Strategy for Anticancer and Antiviral Therapy. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3356467. [PMID: 36132081 PMCID: PMC9484893 DOI: 10.1155/2022/3356467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 08/20/2022] [Accepted: 08/27/2022] [Indexed: 11/23/2022]
Abstract
Exosomes are extracellular membrane bound vesicles released from almost all cell types and can be retrieved from all body fluids. The molecular constituents of these extracellular bodies vary depending on their cell of origin, from which they can transport molecules such as DNA, RNA, proteins lipids, and several metabolites. They have been shown to execute several functions such as in cell growth, migration, differentiation, neuronal signaling, immune cell modulation, and some diseases such as cancer through intercellular communication and signaling. They are also described to act as key players in viral persistence and dissemination. Due to their ability to elicit potent cellular responses, high level of tolerance in host cells, and high efficiency in penetrating other cells, they are proposed to be potential therapeutics as well as vehicles for drug delivery. In recent years, several studies have been conducted in quest for the development of an effective anticancer therapy or antiviral therapy against highly persistent viruses. However, most of these studies become halted due to failure to achieve desired therapeutic outcomes. Nevertheless, the in vitro/in vivo application of exosomes in tumor and infectious disease diagnosis and therapy is prospective. This review discusses the role of exosomes as predictive markers for immune activation and potential targets for anticancer/antiviral therapies.
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Roger I, Montero P, García A, Milara J, Ribera P, Pérez-Fidalgo JA, Cortijo J. Evaluation of Antineoplastic Delayed-Type Hypersensitivity Skin Reactions In Vitro. Pharmaceuticals (Basel) 2022; 15:ph15091111. [PMID: 36145332 PMCID: PMC9501359 DOI: 10.3390/ph15091111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/22/2022] [Accepted: 08/29/2022] [Indexed: 11/28/2022] Open
Abstract
Delayed-type hypersensitivity (DTH) is caused by a broad number of drugs used in clinic, and antineoplastic drugs show an elevated proportion of DTH, which potentially affects the quality of life of patients. Despite the serious problem and the negative economic impact deriving from market withdrawal of such drugs and high hospitalization costs, nowadays, there are no standard validated methods in vitro or in vivo to evaluate the sensitizing potential of drugs in the preclinical phase. Enhanced predictions in preclinical safety evaluations are really important, and for that reason, the aim of our work is to adapt in vitro DPRA, ARE-Nrf2 luciferase KeratinoSensTM, and hCLAT assays for the study of the sensitizing potential of antineoplastic agents grouped by mechanism of action. Our results reveal that the above tests are in vitro techniques able to predict the sensitizing potential of the tested antineoplastics. Moreover, this is the first time that the inhibition of the VEGFR1 pathway has been identified as a potential trigger of DTH.
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Affiliation(s)
- Inés Roger
- Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), Health Institute Carlos III, 28029 Madrid, Spain
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
- Correspondence: (I.R.); (P.M.); Tel.: +34-963864631 (I.R.)
| | - Paula Montero
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
- Correspondence: (I.R.); (P.M.); Tel.: +34-963864631 (I.R.)
| | - Antonio García
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
- Pharmacy Unit, University Clinic Hospital, 46010 Valencia, Spain
| | - Javier Milara
- Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), Health Institute Carlos III, 28029 Madrid, Spain
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
- Pharmacy Unit, University General Hospital Consortium, 46014 Valencia, Spain
| | - Pilar Ribera
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
| | - Jose Alejandro Pérez-Fidalgo
- Department of Medical Oncology, University Clinic Hospital of Valencia, 46010 Valencia, Spain
- Biomedical Research Networking Centre on Cancer (CIBERONC), Health Institute Carlos III, 28029 Madrid, Spain
- INCLIVA Biomedical Research Institute, 46010 Valencia, Spain
| | - Julio Cortijo
- Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), Health Institute Carlos III, 28029 Madrid, Spain
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain
- Research and Teaching Unit, University General Hospital Consortium, 46014 Valencia, Spain
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Qin H, Sun C, Zhu Y, Qin Y, Ren S, Wang Z, Li C, Li X, Zhang B, Hao J, Li G, Wang H, Shao B, Zhang J, Wang H. IL-37 overexpression promotes endometrial regenerative cell-mediated inhibition of cardiac allograft rejection. Stem Cell Res Ther 2022; 13:302. [PMID: 35841010 PMCID: PMC9284885 DOI: 10.1186/s13287-022-02982-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Endometrial regenerative cells (ERCs) play an important role in attenuation of acute allograft rejection, while their effects are limited. IL-37, a newly discovered immunoregulatory cytokine of the IL-1 family, can regulate both innate and adaptive immunity. Whether IL-37 overexpression can enhance the therapeutic effects of ERCs in inhibition of acute cardiac allograft rejection remains unknown and will be explored in this study. METHODS C57BL/6 mice recipients receiving BALB/c mouse heterotopic heart allografts were randomly divided into the phosphate-buffered saline (untreated), ERC treated, negative lentiviral control ERC (NC-ERC) treated, and IL-37 overexpressing ERC (IL-37-ERC) treated groups. Graft pathological changes were assessed by H&E staining. The intra-graft cell infiltration and splenic immune cell populations were analyzed by immunohistochemistry and flow cytometry, respectively. The stimulatory property of recipient DCs was tested by an MLR assay. Furthermore, serum cytokine profiles of recipients were measured by ELISA assay. RESULTS Mice treated with IL-37-ERCs achieved significantly prolonged allograft survival compared with the ERC-treated group. Compared with all the other control groups, IL-37-ERC-treated group showed mitigated inflammatory response, a significant increase in tolerogenic dendritic cells (Tol-DCs), regulatory T cells (Tregs) in the grafts and spleens, while a reduction of Th1 and Th17 cell population. Additionally, there was a significant upregulation of immunoregulatory IL-10, while a reduction of IFN-γ, IL-17A, IL-12 was detected in the sera of IL-37-ERC-treated recipients. CONCLUSION IL-37 overexpression can promote the therapeutic effects of ERCs to inhibit acute allograft rejection and further prolong graft survival. This study suggests that gene-modified ERCs overexpressing IL-37 may pave the way for novel therapeutic options in the field of transplantation.
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Affiliation(s)
- Hong Qin
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Chenglu Sun
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Yanglin Zhu
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Yafei Qin
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Shaohua Ren
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Zhaobo Wang
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Chuan Li
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Xiang Li
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Baoren Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Jingpeng Hao
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China.,Department of Anorectal Surgery, Tianjin Medical University Second Hospital, Tianjin, China
| | - Guangming Li
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Hongda Wang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Bo Shao
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Jingyi Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.,Tianjin General Surgery Institute, Tianjin, China
| | - Hao Wang
- Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China. .,Tianjin General Surgery Institute, Tianjin, China.
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Chen H, Sun T, Jiang C. Extracellular vesicle-based macromolecule delivery systems in cancer immunotherapy. J Control Release 2022; 348:572-589. [PMID: 35714733 DOI: 10.1016/j.jconrel.2022.06.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 02/08/2023]
Abstract
Great attention has been paid to the impressive role the macromolecules played in cancer immunotherapy, however, the applications were largely limited by their poor circulation stability, low cellular uptake efficiency, and off-target effects. As an important messenger of intercellular communication, extracellular vesicles (EVs) exhibit unique advantages in macromolecule delivery compared to traditional synthetic carriers, offering new possibilities for modern drug delivery. These naturally derived carriers can achieve stable, efficient, and selective delivery of macromolecules and improve the efficacy and potentiality of macromolecular drugs in cancer immunotherapy. This review provides a brief overview of the unique features of EVs related to macromolecule delivery, the strategies and recent advances of using EVs as macromolecule delivery carriers in cancer immunotherapy.
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Affiliation(s)
- Hongyi Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Tao Sun
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Chen Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China.
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Ding Y, Wang L, Li H, Miao F, Zhang Z, Hu C, Yu W, Tang Q, Shao G. Application of lipid nanovesicle drug delivery system in cancer immunotherapy. J Nanobiotechnology 2022; 20:214. [PMID: 35524277 PMCID: PMC9073823 DOI: 10.1186/s12951-022-01429-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/20/2022] [Indexed: 12/15/2022] Open
Abstract
Immunotherapy has gradually emerged as the most promising anticancer therapy. In addition to conventional anti-PD-1/PD-L1 therapy, anti-CTLA-4 therapy, CAR-T therapy, etc., immunotherapy can also be induced by stimulating the maturation of immune cells or inhibiting negative immune cells, regulating the tumor immune microenvironment and cancer vaccines. Lipid nanovesicle drug delivery system includes liposomes, cell membrane vesicles, bacterial outer membrane vesicles, extracellular vesicles and hybrid vesicles. Lipid nanovesicles can be used as functional vesicles for cancer immunotherapy, and can also be used as drug carriers to deliver immunotherapy drugs to the tumor site for cancer immunotherapy. Here, we review recent advances in five kinds of lipid nanovesicles in cancer immunotherapy and assess the clinical application prospects of various lipid nanovesicles, hoping to provide valuable information for clinical translation in the future.
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Affiliation(s)
- Yinan Ding
- Medical School of Southeast University, Nanjing, 210009, China
| | - Luhong Wang
- Medical School of Southeast University, Nanjing, 210009, China
| | - Han Li
- Department of Tuberculosis, the Second Affiliated Hospital of Southeast University (the Second Hospital of Nanjing), Nanjing, 210009, China
| | - Fengqin Miao
- Medical School of Southeast University, Nanjing, 210009, China
| | - Zhiyuan Zhang
- Department of Neurosurgery, Nanjing Jinling Hospital, Nanjing University, Nanjing, 210002, China
| | - Chunmei Hu
- Department of Tuberculosis, the Second Affiliated Hospital of Southeast University (the Second Hospital of Nanjing), Nanjing, 210009, China
| | - Weiping Yu
- Medical School of Southeast University, Nanjing, 210009, China.
| | - Qiusha Tang
- Medical School of Southeast University, Nanjing, 210009, China.
| | - Guoliang Shao
- Department of Interventional Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China.
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10
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Iulini M, Maddalon A, Galbiati V, Corsini E. The Modified THP-1 Activation Assay for the In Vitro Identification of Drug-Inducing Systemic Hypersensitivity. FRONTIERS IN TOXICOLOGY 2022; 4:814050. [PMID: 35295210 PMCID: PMC8915845 DOI: 10.3389/ftox.2022.814050] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/31/2022] [Indexed: 12/23/2022] Open
Abstract
The development of new low molecular weight drugs has many chances of failure and is an expensive process. Currently, there are no screening methods and/or models to assess the hazard of hypersensitivity reactions to drugs (DHRs) in the preclinical phase. DHRs represent 6–15% of adverse drug reactions. Although rare, DHRs represent a serious health problem for predisposed individuals, resulting, in some cases, in life-threatening pathologies. To date, there are no in vitro or in vivo sensitive models able to predict the sensitizing potential of drugs in the preclinical tests, and these reactions are highlighted only after the drug has been placed on the market, affecting both population and public health. This article describes a novel approach methodology for the study of the sensitizing potential of drugs based on the use of the human promyelocytic cell line THP-1 as a surrogate for dendritic cells. The method is based on the upregulation of specific surface markers (CD86 and CD54) and on the production of IL-8. In our experience, the THP-1 activation assay allowed the correct identification of drugs known to induce systemic hypersensitivity in humans, including the one associated with specific HLAs. This method may help to discover possible systemic hypersensitivity reactions early in the preclinical phase of drug development.
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11
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Wang Z, Xu H, Cheng F, Zhang J, Feng Y, Liu D, Shang W, Feng G. Donor BMSC-derived small extracellular vesicles relieve acute rejection post-renal allograft through transmitting Loc108349490 to dendritic cells. Aging Cell 2021; 20:e13461. [PMID: 34499402 PMCID: PMC8520728 DOI: 10.1111/acel.13461] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/19/2021] [Accepted: 08/06/2021] [Indexed: 12/24/2022] Open
Abstract
Bone marrow-derived mesenchymal stem cell (BMSC)-derived small extracellular vesicles (sEVs) are potent candidates for the suppression of acute rejection post-renal allograft and have been reported to halt dendritic cells (DCs) maturation. However, whether BMSC-derived sEVs mitigate acute rejection post-renal allograft by targeting DCs is still unclear. In this study, donor BMSC-derived sEVs (sEVs) relieved the inflammatory response and suppressed mature DCs (mDCs) location in kidney grafts, and increased regulatory T (Treg) cell population in the spleens of the rats that underwent kidney allograft. In lipopolysaccharide (LPS)-stimulated immature DCs (imDCs), sEVs suppressed the maturation and migration of DCs and inactivated toll-like receptor 4 (TLR4) signaling. Compared with LPS-treated imDCs, imDCs treated with LPS+sEVs promoted CD4+ T cells differentiated toward Treg cells. Subsequently, we found that Loc108349490, a long non-coding RNA (lncRNA) abundant in sEVs, mediated the inhibitory effect of sEVs on DC maturation and migration by promoting TLR4 ubiquitination. In rats that underwent an allograft, Loc108349490 deficiency weakened the therapeutic effect of sEVs on acute rejection. The present study firstly found that sEVs alleviated acute rejection post-renal allograft by transferring lncRNA to DCs and screened out the functional lncRNA loaded in sEVs was Loc108349490.
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Affiliation(s)
- Zhi‐gang Wang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Hong‐en Xu
- Precision Medicine Center of Zhengzhou UniversityAcademy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Fu‐min Cheng
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Jie Zhang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yong‐hua Feng
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Dan‐hua Liu
- Precision Medicine Center of Zhengzhou UniversityAcademy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Wen‐jun Shang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Gui‐wen Feng
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
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Gurunathan S, Kang MH, Kim JH. A Comprehensive Review on Factors Influences Biogenesis, Functions, Therapeutic and Clinical Implications of Exosomes. Int J Nanomedicine 2021; 16:1281-1312. [PMID: 33628021 PMCID: PMC7898217 DOI: 10.2147/ijn.s291956] [Citation(s) in RCA: 133] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/16/2021] [Indexed: 12/12/2022] Open
Abstract
Exosomes are nanoscale-sized membrane vesicles secreted by almost all cell types into the extracellular environment upon fusion of multivesicular bodies and plasma membrane. Biogenesis of exosomes is a protein quality control mechanism, and once released, exosomes transmit signals to other cells. The applications of exosomes have increased immensely in biomedical fields owing to their cell-specific cargos that facilitate intercellular communications with neighboring cells through the transfer of biologically active compounds. The diverse constituents of exosomes reflect their cell of origin and their detection in biological fluids represents a diagnostic marker for various diseases. Exosome research is expanding rapidly due to the potential for clinical application to therapeutics and diagnosis. However, several aspects of exosome biology remain elusive. To discover the use of exosomes in the biomedical applications, we must better understand the basic molecular mechanisms underlying their biogenesis and function. In this comprehensive review, we describe factors involved in exosomes biogenesis and the role of exosomes in intercellular signaling and cell-cell communications, immune responses, cellular homeostasis, autophagy, and infectious diseases. In addition, we discuss the role of exosomes as diagnostic markers, and their therapeutic and clinical implications. Furthermore, we addressed the challenges and outstanding developments in exosome research, and discuss future perspectives.
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Affiliation(s)
- Sangiliyandi Gurunathan
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Min-Hee Kang
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
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Cheng K, Kang Q, Zhao X. Biogenic nanoparticles as immunomodulator for tumor treatment. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1646. [DOI: 10.1002/wnan.1646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Keman Cheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing China
- Department of Biomaterials, Key Laboratory of Biomedical Engineering of Fujian Province College of Materials, Xiamen University Xiamen Fujian China
| | - Qinglin Kang
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane Queensland Australia
| | - Xiao Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing China
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14
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Yang Z, Ma Y, Zhao H, Yuan Y, Kim BYS. Nanotechnology platforms for cancer immunotherapy. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1590. [PMID: 31696664 DOI: 10.1002/wnan.1590] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 12/18/2022]
Abstract
Various cancer therapies have advanced remarkably over the past decade. Unlike the direct therapeutic targeting of tumor cells, cancer immunotherapy is a new strategy that boosts the host's immune system to detect specific cancer cells for efficient elimination. Nanoparticles incorporating immunomodulatory agents can activate immune cells and modulate the tumor microenvironment to enhance antitumor immunity. Such nanoparticle-based cancer immunotherapies have received considerable attention and have been extensively studied in recent years. This review thus focuses on nanoparticle-based platforms (especially naturally derived nanoparticles and synthetic nanoparticles) utilized in recent advances; summarizes delivery systems that incorporate various immune-modulating agents, including peptides and nucleic acids, immune checkpoint inhibitors, and other small immunostimulating agents; and introduces combinational cancer immunotherapy with nanoparticles, especially nanoparticle-based photo-immunotherapy and nanoparticle-based chemo-immunotherapy. Undoubtedly, the recent studies introduced in this review prove that nanoparticle-incorporated cancer immunotherapy is a highly promising treatment modality for patients with cancer. Nonetheless further research is needed to solve safety concerns and improve efficacy of nanoplatform-based cancer immunotherapy for future clinical application. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Zhaogang Yang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Yifan Ma
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio
| | - Hai Zhao
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yuan Yuan
- Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Betty Y S Kim
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Kaushansky N, Kaminitz A, Allouche-Arnon H, Ben-Nun A. Modulation of MS-like disease by a multi epitope protein is mediated by induction of CD11c +CD11b +Gr1 + myeloid-derived dendritic cells. J Neuroimmunol 2019; 333:476953. [PMID: 31108399 DOI: 10.1016/j.jneuroim.2019.04.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 12/16/2022]
Abstract
Specific neutralization of the pathogenic autoimmune cells is the ultimate goal in therapy of Multiple Sclerosis (MS). However, the pathogenic autoimmunity in MS, can be directed against several major target antigens, and therefore targeting pathogenic T-cells directed against a single target antigen is unlikely to be effective. To overcome this multiplicity and the potential complexity of pathogenic autoreactivities in MS, we have put forward the concept of concomitant multi-antigen/multi-epitope targeting as, a conceivably more effective approach to immunotherapy of MS. We constructed an (Experimental Autoimmune Encephalomeylitis (EAE)/MS-related synthetic human Target Autoantigen Gene (MS-shMultiTAG) designed to encode in tandem only EAE/MS related epitopes of all known encephalitogenic proteins. The MS-related protein product (designated Y-MSPc) was immunofunctional and upon tolerogenic administration, it effectively suppressed and reversed EAE induced by a single encephalitogenic protein. Furthermore, Y-MSPc also fully abrogated the development of "complex EAE" induced by a mixture of five encephalitogenic T-cell lines, each specific for a different encephalitogenic epitope of MBP, MOG, PLP, MOBP and OSP. Strikingly, Y-MSPc was consistently more effective than treatment with the single disease-specific peptide or with the peptide cocktail, both in suppressing the development of "classical" or "complex" EAE and in ameliorating ongoing disease. Overall, the modulation of EAE by Y-MSPc was associated with anergizing the pathogenic autoreactive T-cells, downregulation of Th1/Th17 cytokine secretion and upregulation of TGF-β secretion. Moreover, we show that both suppression and treatment of ongoing EAE by tolerogenic administration of Y-MSPc is associated also with a remarkable increase in a unique subset of dendritic-cells (DCs), CD11c+CD11b+Gr1+-myeloid derived DCs in both spleen and CNS of treated mice. These DCs, which are with strong immunoregulatory characteristics and are functional in down-modulation of MS-like-disease displayed increased production of IL-4, IL-10 and TGF-β and low IL-12. Functionally, these myeloid DCs suppress the in-vitro proliferation of myelin-specific T-cells and more importantly, the cells were functional in-vivo, as their adoptive transfer into EAE induced mice resulted in strong suppression of the disease, associated with a remarkable induction of CD4 + FoxP3+ regulatory cells. These results, which highlight the efficacy of "multi-epitope-targeting" agent in induction of functional regulatory CD11c+CD11b+Gr1+myeloid DCs, further indicate the potential role of these DCs in maintaining peripheral tolerance and their involvement in downregulation of MS-like-disease.
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Affiliation(s)
- N Kaushansky
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel.
| | - A Kaminitz
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - H Allouche-Arnon
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - A Ben-Nun
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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Seo N, Akiyoshi K, Shiku H. Exosome-mediated regulation of tumor immunology. Cancer Sci 2018; 109:2998-3004. [PMID: 29999574 PMCID: PMC6172045 DOI: 10.1111/cas.13735] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/10/2018] [Indexed: 12/16/2022] Open
Abstract
Exosomes are representative extracellular vesicles (EV) derived from multivesicular endosomes (MVE) and have been described as new particles in the communication of neighborhood and/or distant cells by serving as vehicles for transfer between cells of membrane and cytosolic proteins, lipids, and nucleotides including micro (mi) RNAs. Exosomes from immune cells and tumor cells act in part as a regulator in tumor immunology. CD8+ T cells that show potent cytotoxic activity against tumor cells reside as an inactive naïve form in the T-cell zone of secondary lymphoid organs. Once receiving tumor-specific antigenic stimulation by dendritic cells (DC), CD8+ T cells are activated and differentiated into effector CTL. Subsequently, CTL circulate systemically, infiltrate into tumor lesions through the stromal neovasculature where mesenchymal stromal cells, for example, mesenchymal stem cells (MSC) and cancer-associated fibroblasts (CAF), abundantly exist, destroy mesenchymal tumor stroma in an exosome-mediated way, go into tumor parenchyma, and attack tumor cells by specific interaction. DC-derived and regulatory T (Treg) cell-derived exosomes, respectively, promote and inhibit CTL generation in this setting. In this review, we describe the roles of exosomes from immune cells and tumor cells on the regulation of tumor progression.
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Affiliation(s)
- Naohiro Seo
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan.,CREST, Japan Science and Technology Agency (JST), Tokyo, Japan
| | - Kazunari Akiyoshi
- CREST, Japan Science and Technology Agency (JST), Tokyo, Japan.,Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hiroshi Shiku
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Mie, Japan
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Fan Y, Naglich JG, Koenitzer JD, Ribeiro H, Lippy J, Blum J, Li X, Milburn C, Barnhart B, Zhang L, Fereshteh MP. Miniaturized High-Throughput Multiparameter Flow Cytometry Assays Measuring In Vitro Human Dendritic Cell Maturation and T-Cell Activation in Mixed Lymphocyte Reactions. SLAS DISCOVERY 2018; 23:742-750. [PMID: 29873570 DOI: 10.1177/2472555218775409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Enhancing antitumor activities of the human immune system is a clinically proven approach with the advent of monoclonal antibodies recognizing programmed cell death protein-1 (PD1) receptors on immune cell surfaces. Historically, using flow cytometry as a means to assess next-generation agent activities was underused, largely due to limits on cell number and assay sensitivity. Here, we leveraged an IntelliCyt high-throughput flow cytometry platform to monitor human dendritic cell maturation and lymphocyte proliferation in mixed lymphocyte reactions. Specifically, we established flow cytometry-based immunophenotyping and screening methodologies capable of measuring T-cell activation as a result of cell-associated antigens presented on dendritic cell surfaces, as indicated by cell proliferation, cytokine secretion, and surface marker expression. Together, the overall novelty of this 384-well platform is its capability to measure multiple functional readouts in one well and consistently evaluate large numbers of compounds in a single study, as well as its ability to show increased assay sensitivity requiring considerably fewer primary cells and less reagents compared to more traditional 96-well flow cytometry methods.
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Affiliation(s)
- Yi Fan
- 1 Bristol-Myers Squibb Company, Princeton, NJ, USA
| | | | | | | | | | - Jordan Blum
- 1 Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Xin Li
- 1 Bristol-Myers Squibb Company, Princeton, NJ, USA
| | | | | | - Litao Zhang
- 1 Bristol-Myers Squibb Company, Princeton, NJ, USA
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Corsini E, Casula M, Tragni E, Galbiati V, Pallardy M. Tools to investigate and avoid drug-hypersensitivity in drug development. Expert Opin Drug Discov 2018; 13:425-433. [PMID: 29405076 DOI: 10.1080/17460441.2018.1437141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Drug hypersensitivity reactions (DHRs) are common adverse effects of pharmaceuticals that clinically resemble allergies, and which are becoming an important burden to healthcare systems. Alongside accurate diagnostic techniques, tools which can predict potential drug-inducing hypersensitivity reactions in the pre-clinical phase are critical. Despite the important adverse reactions linked to immune-mediated hypersensitivity, at present, there are no validated or required in vivo or in vitro methods to screen the sensitizing potential of drugs and their metabolites in the pre-clinical phase. Areas covered: Enhanced prediction in preclinical safety evaluation is extremely important. The purpose of this review is to assess the state of the art of tools available to assess the allergenic potential of drugs and to highlight our current understanding of the molecular mechanisms underlying inappropriate immune activation. Expert opinion: The knowledge that allergenic drugs share common mechanisms of immune cell activation with chemical allergens, and of the definition of the mechanistic pathway to adverse outcomes, can enhance targeting toxicity testing in drug development and hazard assessment of hypersensitivity. Additional efforts and extensive resources are necessary to improve preclinical testing methodologies, including optimization, better design and interpretation of data.
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Affiliation(s)
- Emanuela Corsini
- a Laboratory of Toxicology, Department of Environmental Science and Policy , Università degli Studi di Milano , Milan , Italy
| | - Manuela Casula
- b Epidemiology and Preventive Pharmacology Centre (SEFAP), Department of Pharmacological and Biomolecular Sciences , University of Milan , Milan , Italy
| | - Elena Tragni
- b Epidemiology and Preventive Pharmacology Centre (SEFAP), Department of Pharmacological and Biomolecular Sciences , University of Milan , Milan , Italy
| | - Valentina Galbiati
- a Laboratory of Toxicology, Department of Environmental Science and Policy , Università degli Studi di Milano , Milan , Italy
| | - Marc Pallardy
- c Inflammation, Chemokines and Immunopathology , INSERM UMR 996, Univ Paris-Sud, Université Paris-Saclay , Châtenay-Malabry , France
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Seo N, Shirakura Y, Tahara Y, Momose F, Harada N, Ikeda H, Akiyoshi K, Shiku H. Activated CD8 + T cell extracellular vesicles prevent tumour progression by targeting of lesional mesenchymal cells. Nat Commun 2018; 9:435. [PMID: 29382847 PMCID: PMC5789986 DOI: 10.1038/s41467-018-02865-1] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 01/05/2018] [Indexed: 11/09/2022] Open
Abstract
Fibroblastic tumour stroma comprising mesenchymal stem cells (MSCs) and cancer-associated fibroblasts (CAFs) promotes the invasive and metastatic properties of tumour cells. Here we show that activated CD8+ T cell-derived extracellular vesicles (EVs) interrupt fibroblastic stroma-mediated tumour progression. Activated CD8+ T cells from healthy mice transiently release cytotoxic EVs causing marked attenuation of tumour invasion and metastasis by apoptotic depletion of mesenchymal tumour stromal cells. Infiltration of EV-producing CD8+ T cells is observed in neovascular areas with high mesenchymal cell density, and tumour MSC depletion is associated with preferential engulfment of CD8+ T cell EVs in this setting. Thus, CD8+ T cells have the capacity to protect tumour progression by EV-mediated depletion of mesenchymal tumour stromal cells in addition to their conventional direct cytotoxicity against tumour cells. Immune cells have an important role in tumour progression. Here, the authors show that extracellular vesicles from activated CD8+ T cells attenuate tumour progression by depletion of mesenchymal tumour stromal cells.
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Affiliation(s)
- Naohiro Seo
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan. .,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.
| | - Yoshitaka Shirakura
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yoshiro Tahara
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.,Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Moto-oka, Fukuoka, 819-0395, Japan
| | - Fumiyasu Momose
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan.,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan
| | - Naozumi Harada
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan.,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan
| | - Hiroaki Ikeda
- Department of Oncology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, 852-8523, Japan
| | - Kazunari Akiyoshi
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.,Department of Polymer Chemistry, Graduate School of Engineering, Katsura Int'tech Center, Kyoto University, Nishikyo-ku, Kyoto, 615-8530, Japan
| | - Hiroshi Shiku
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan. .,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.
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Sharma R, Ghasparian A, Robinson JA, McCullough KC. Dendritic Cell Sensing of Hydrophobic Di- and Triacylated Lipopeptides Self-Assembled within Synthetic Virus-like Particles. THE JOURNAL OF IMMUNOLOGY 2017. [PMID: 28630093 DOI: 10.4049/jimmunol.1600521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Dendritic cells (DCs) play critical roles in developing immune defenses. One important aspect is interaction with pathogen-associated molecular patterns (PAMPs)/danger-associated molecular patterns, including di- and triacylated lipopeptides. Isolated or synthetic lipopeptides are potent vaccine adjuvants, interacting with cell surface TLR2 heterodimers. In contrast, deep embedment within bacteria cell walls would impair lipopeptide interaction with cell surface TLR2, requiring degradation for PAMP recognition. Accordingly, DC processing in the absence of surface TLR2 ligation was defined using synthetic virus-like particles (SVLPs) carrying hydrophobic TLR2 PAMPs within di- and triacylated lipopeptide cores (P2Cys-SVLPs and P3Cys-SVLPs) compared with SVLPs lacking immunomodulatory lipopeptides. DCs rapidly and efficiently internalized SVLPs, which was dominated by slow endocytic processing via macropinocytosis, although some caveolar endocytosis was implicated. This delivered SVLPs primarily into macropinosomes often interacting with EEA-1+ early endosomes. Although endoplasmic reticulum association was occasionally noted, association with recycling/sorting structures was not observed. Involvement of LysoTracker+ structures slowly increased with time, with SVLPs present in such structures ultimately dominating. Only SVLPs carrying di- and triacylated lipopeptide cores induced DC activation and maturation independently of surface TLR2 ligation. Intracellular recognition of SVLP TLR2 ligands was confirmed by observing SVLPs' association with internal TLR2, which had similar kinetics to SVLP association with LysoTracker. This related to inflammatory cytokine induction by SVLP+ DCs, with adaptive immune response activation ex vivo/in vivo. Importantly, particular DCs, not monocytes, recognized intracellular exposure of the TLR2 PAMPs carried by di- and triacylated SVLP cores, which indicates subset-distinct recognition of functional internal TLR2 ligands. Thus, vaccines carrying hydrophobic TLR2 ligands would interact with particular DCs for efficient induction of specific immunity in the absence of additional adjuvant.
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Affiliation(s)
- Rajni Sharma
- Institute of Virology and Immunology, 3147 Mittelhäusern, Switzerland
| | - Arin Ghasparian
- Department of Chemistry, University of Zürich, 8057 Zürich, Switzerland; and.,Virometix AG, 8952 Zurich, Switzerland
| | - John A Robinson
- Department of Chemistry, University of Zürich, 8057 Zürich, Switzerland; and
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The Effect of Traditional Chinese Formula Danchaiheji on the Differentiation of Regulatory Dendritic Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:9179470. [PMID: 27525028 PMCID: PMC4976157 DOI: 10.1155/2016/9179470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 01/03/2023]
Abstract
Recently, regulatory dendritic cells (DCregs), a newly described dendritic cell subset with potent immunomodulatory function, have attracted increased attention for their utility in treating immune response-related diseases, such as graft-versus-host disease, hypersensitivity, and autoimmune diseases. Danchaiheji (DCHJ) is a traditional Chinese formula that has been used for many years in the clinic. However, whether DCHJ can program dendritic cells towards a regulatory phenotype and the underlying mechanism behind this process remain unknown. Herein, we investigate the effects of traditional Chinese DCHJ on DCregs differentiation and a mouse model of skin transplantation. The current study demonstrates that DCHJ can induce dendritic cells to differentiate into DCregs, which are represented by high CD11b and low CD86 and HLA-DR expression as well as the secretion of IL-10 and TGF-β. In addition, DCHJ inhibited DC migration and T cell proliferation, which correlated with increased IDO expression. Furthermore, DCHJ significantly prolonged skin graft survival time in a mouse model of skin transplantation without any liver or kidney toxicity. The traditional Chinese formula DCHJ has the potential to be a potent immunosuppressive agent with high efficiency and nontoxicity.
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Galbiati V, Papale A, Kummer E, Corsini E. In vitro Models to Evaluate Drug-Induced Hypersensitivity: Potential Test Based on Activation of Dendritic Cells. Front Pharmacol 2016; 7:204. [PMID: 27462271 PMCID: PMC4940371 DOI: 10.3389/fphar.2016.00204] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/27/2016] [Indexed: 01/11/2023] Open
Abstract
Hypersensitivity drug reactions (HDRs) are the adverse effect of pharmaceuticals that clinically resemble allergy. HDRs account for approximately 1/6 of drug-induced adverse effects, and include immune-mediated ("allergic") and non-immune-mediated ("pseudo allergic") reactions. In recent years, the severe and unpredicted drug adverse events clearly indicate that the immune system can be a critical target of drugs. Enhanced prediction in preclinical safety evaluation is, therefore, crucial. Nowadays, there are no validated in vitro or in vivo methods to screen the sensitizing potential of drugs in the pre-clinical phase. The problem of non-predictability of immunologically-based hypersensitivity reactions is related to the lack of appropriate experimental models rather than to the lack of -understanding of the adverse phenomenon. We recently established experimental conditions and markers to correctly identify drug associated with in vivo hypersensitivity reactions using THP-1 cells and IL-8 production, CD86 and CD54 expression. The proposed in vitro method benefits from a rationalistic approach with the idea that allergenic drugs share with chemical allergens common mechanisms of cell activation. This assay can be easily incorporated into drug development for hazard identification of drugs, which may have the potential to cause in vivo hypersensitivity reactions. The purpose of this review is to assess the state of the art of in vitro models to assess the allergenic potential of drugs based on the activation of dendritic cells.
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Affiliation(s)
- Valentina Galbiati
- Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano Milan, Italy
| | - Angela Papale
- Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano Milan, Italy
| | - Elena Kummer
- Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano Milan, Italy
| | - Emanuela Corsini
- Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano Milan, Italy
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Karimi MH, Barzkar Z, Babaee M, Naghdi M. Evaluating Effect of Mesenchymal Stem Cells on Expression of TLR2 and TLR4 in Mouse DCs. Adv Pharm Bull 2016; 6:179-86. [PMID: 27478779 DOI: 10.15171/apb.2016.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 03/20/2016] [Accepted: 04/02/2016] [Indexed: 12/29/2022] Open
Abstract
PURPOSE Mesenchymal stem cells (MSCs) are multipotent cells and recent findings suggest immunomodulatory effect of them on immune cells including T cells and dendritic cells (DCs). DCs are the most potent antigen presenting cells. It seems because of immunoregulatory properties of MSCs, they can affect the maturation and differentiation of DCs. DCs express a kind of surface receptors called toll-like receptors (TLRs) and play a key role in maturation process and activation of DCs. The aim of this study was to evaluate expression of TLR2 and TLR4 on DCs after exposure to mesenchymal stem cell's supernatant in culture media containing LPS and devoid of it. METHODS In this experimental study, MSCs and DCs were extracted from adult Balb/c mouse bone marrow and spleen, respectively. MSCs supernatant were collected 24 and 48 h after 5(th) passage, and in adjusted with DCs culture. Isolated DCs were co-cultured with MSCs supernatant, incubation time were 24 and 48 hours. mRNA levels of TLR2 and TLR4 were evaluated using real time PCR technique. RESULTS The results demonstrated that although, expressions of these two receptors were up-regulated in culture media lacking LPS in comparison with the control group but the increase was not significant. There were no significant associations between LPS stimulated DCs with and without MSCs supernatants. CONCLUSION According to the results presented here, it appears that TLR2 and TLR4 gene expressions on the DCs are not affected by MSCs supernatant.
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Affiliation(s)
| | - Zahra Barzkar
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Maryam Babaee
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Naghdi
- Department of Anatomical Science, Fasa University of Medical Sciences, Fasa, Iran
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Sensitivity of Dendritic Cells to Microenvironment Signals. J Immunol Res 2016; 2016:4753607. [PMID: 27088097 PMCID: PMC4819111 DOI: 10.1155/2016/4753607] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 02/03/2016] [Accepted: 03/06/2016] [Indexed: 12/12/2022] Open
Abstract
Dendritic cells are antigen-presenting cells capable of either activating the immune response or inducing and maintaining immune tolerance. They do this by integrating stimuli from the environment and changing their functional status as a result of plasticity. The modifications suffered by these cells have consequences in the way the organism may respond. In the present work two opposing situations known to affect dendritic cells are analyzed: tumor growth, leading to a microenvironment that favors the induction of a tolerogenic profile, and organ transplantation, which leads to a proinflammatory profile. Lessons learned from these situations may help to understand the mechanisms of modulation resulting not only from the above circumstances, but also from other pathologies.
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Optimization of the THP-1 activation assay to detect pharmaceuticals with potential to cause immune mediated drug reactions. Toxicol In Vitro 2015; 29:1339-49. [DOI: 10.1016/j.tiv.2015.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 04/19/2015] [Accepted: 04/20/2015] [Indexed: 11/17/2022]
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26
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Bloy N, Pol J, Aranda F, Eggermont A, Cremer I, Fridman WH, Fučíková J, Galon J, Tartour E, Spisek R, Dhodapkar MV, Zitvogel L, Kroemer G, Galluzzi L. Trial watch: Dendritic cell-based anticancer therapy. Oncoimmunology 2014; 3:e963424. [PMID: 25941593 DOI: 10.4161/21624011.2014.963424] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023] Open
Abstract
The use of patient-derived dendritic cells (DCs) as a means to elicit therapeutically relevant immune responses in cancer patients has been extensively investigated throughout the past decade. In this context, DCs are generally expanded, exposed to autologous tumor cell lysates or loaded with specific tumor-associated antigens (TAAs), and then reintroduced into patients, often in combination with one or more immunostimulatory agents. As an alternative, TAAs are targeted to DCs in vivo by means of monoclonal antibodies, carbohydrate moieties or viral vectors specific for DC receptors. All these approaches have been shown to (re)activate tumor-specific immune responses in mice, often mediating robust therapeutic effects. In 2010, the first DC-based preparation (sipuleucel-T, also known as Provenge®) has been approved by the US Food and Drug Administration (FDA) for use in humans. Reflecting the central position occupied by DCs in the regulation of immunological tolerance and adaptive immunity, the interest in harnessing them for the development of novel immunotherapeutic anticancer regimens remains high. Here, we summarize recent advances in the preclinical and clinical development of DC-based anticancer therapeutics.
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Key Words
- DC, dendritic cell
- DC-based vaccination
- FDA, Food and Drug Administration
- IFN, interferon
- MRC1, mannose receptor, C type 1
- MUC1, mucin 1
- TAA, tumor-associated antigen
- TLR, Toll-like receptor
- Toll-like receptor agonists
- Treg, regulatory T cell
- WT1, Wilms tumor 1
- antigen cross-presentation
- autophagy
- iDC, immature DC
- immunogenic cell death
- mDC, mature DC
- pDC, plasmacytoid DC
- regulatory T cells
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Affiliation(s)
- Norma Bloy
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris-Sud/Paris XI ; Orsay, France
| | - Jonathan Pol
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France
| | - Fernando Aranda
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France
| | | | - Isabelle Cremer
- INSERM , U1138; Paris France ; Equipe 13; Centre de Recherche des Cordeliers ; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France
| | - Wolf Hervé Fridman
- INSERM , U1138; Paris France ; Equipe 13; Centre de Recherche des Cordeliers ; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France
| | - Jitka Fučíková
- Department of Immunology; 2nd Medical School Charles University and University Hospital Motol ; Prague, Czech Republic ; Sotio a.s. ; Prague, Czech Republic
| | - Jérôme Galon
- INSERM , U1138; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France ; Laboratory of Integrative Cancer Immunology; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France
| | - Eric Tartour
- Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France ; INSERM , U970; Paris France ; Pôle de Biologie; Hôpital Européen Georges Pompidou, AP-HP ; Paris France
| | - Radek Spisek
- Department of Immunology; 2nd Medical School Charles University and University Hospital Motol ; Prague, Czech Republic ; Sotio a.s. ; Prague, Czech Republic
| | - Madhav V Dhodapkar
- Department of Medicine; Immunobiology and Yale Cancer Center; Yale University ; New Haven, CT USA
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM, U1015, CICBT507 ; Villejuif, France
| | - Guido Kroemer
- INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France ; Pôle de Biologie; Hôpital Européen Georges Pompidou, AP-HP ; Paris France ; Metabolomics and Cell Biology Platforms; Gustave Roussy Cancer Campus ; Villejuif, France
| | - Lorenzo Galluzzi
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France
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Zhang B, Yin Y, Lai RC, Lim SK. Immunotherapeutic potential of extracellular vesicles. Front Immunol 2014; 5:518. [PMID: 25374570 PMCID: PMC4205852 DOI: 10.3389/fimmu.2014.00518] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 10/04/2014] [Indexed: 12/20/2022] Open
Abstract
Extracellular vesicle or EV is a term that encompasses all classes of secreted lipid membrane vesicles. Despite being scientific novelties, EVs are gaining importance as a mediator of important physiological and pathological intercellular activities possibly through the transfer of their cargo of protein and RNA between cells. In particular, exosomes, the currently best characterized EVs have been notable for their in vitro and in vivo immunomodulatory activities. Exosomes are nanometer-sized endosome-derived vesicles secreted by many cell types and their immunomodulatory potential is independent of their cell source. Besides immune cells such as dendritic cells, macrophages, and T cells, cancer and stem cells also secrete immunologically active exosomes that could influence both physiological and pathological processes. The immunological activities of exosomes affect both innate and adaptive immunity and include antigen presentation, T cell activation, T cell polarization to regulatory T cells, immune suppression, and anti-inflammation. As such, exosomes carry much immunotherapeutic potential as a therapeutic agent and a therapeutic target.
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Affiliation(s)
- Bin Zhang
- Exosome and Secreted Nano-vesicle Group, ASTAR Institute of Medical Biology , Singapore
| | - Yijun Yin
- Exosome and Secreted Nano-vesicle Group, ASTAR Institute of Medical Biology , Singapore
| | - Ruenn Chai Lai
- Exosome and Secreted Nano-vesicle Group, ASTAR Institute of Medical Biology , Singapore
| | - Sai Kiang Lim
- Exosome and Secreted Nano-vesicle Group, ASTAR Institute of Medical Biology , Singapore ; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore , Singapore
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Hsu SM, Mathew R, Taylor AW, Stein-Streilein J. Ex-vivo tolerogenic F4/80⁺ antigen-presenting cells (APC) induce efferent CD8⁺ regulatory T cell-dependent suppression of experimental autoimmune uveitis. Clin Exp Immunol 2014; 176:37-48. [PMID: 24266626 PMCID: PMC3958152 DOI: 10.1111/cei.12243] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2013] [Indexed: 12/23/2022] Open
Abstract
It is known that inoculation of antigen into the anterior chamber (a.c.) of a mouse eye induces a.c.-associated immune deviation (ACAID), which is mediated in part by antigen-specific local and peripheral tolerance to the inciting antigen. ACAID can also be induced in vivo by intravenous (i.v.) inoculation of ex-vivo-generated tolerogenic antigen-presenting cells (TolAPC). The purpose of this study was to test if in-vitro-generated retinal antigen-pulsed TolAPC suppressed established experimental autoimmune uveitis (EAU). Retinal antigen-pulsed TolAPC were injected i.v. into mice 7 days post-induction of EAU. We observed that retinal antigen-pulsed TolAPC suppressed the incidence and severity of the clinical expression of EAU and reduced the expression of associated inflammatory cytokines. Moreover, extract of whole retina efficiently replaced interphotoreceptor retinoid-binding protein (IRBP) in the preparation of TolAPC used to induce tolerance in EAU mice. Finally, the suppression of EAU could be transferred to a new set of EAU mice with CD8+ but not with CD4+regulatory T cells (Treg). Retinal antigen-pulsed TolAPC suppressed ongoing EAU by inducing CD8+ Treg cells that, in turn, suppressed the effector activity of the IRBP-specific T cells and altered the clinical symptoms of autoimmune inflammation in the eye. The ability to use retinal extract for the antigen raises the possibility that retinal extract could be used to produce autologous TolAPC and then used as therapy in human uveitis.
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Affiliation(s)
- S-M Hsu
- Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Department of Ophthalmology, National Cheng-Kung University Hospital, Tainan City, Taiwan
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Bakdash G, Schreurs I, Schreibelt G, Tel J. Crosstalk between dendritic cell subsets and implications for dendritic cell-based anticancer immunotherapy. Expert Rev Clin Immunol 2014; 10:915-26. [PMID: 24758519 DOI: 10.1586/1744666x.2014.912561] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Dendritic cells (DCs) are a family of professional antigen-presenting cells that have an indispensable role in the initiation of innate and adaptive immune responses against pathogens and tumor cells. The DC family is very heterogeneous. Two main types of naturally occurring DCs circulate in peripheral blood, each with its unique phenotypic and functional characteristics: myeloid DCs and plasmacytoid. There is an ample number of studies that have focused on the bi-directional crosstalk between DCs and natural killer cells or T cells. However, the crosstalk among the different DC subsets, in the context of infectious diseases and cancer, has until now not received much attention. Here, we review all available literature that has dealt with the crosstalk between plasmacytoid and myeloid DCs and the potential mode of action. Emphasis will be given to the therapeutic potential of the combination of DC subsets for DC-based immunotherapy.
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Affiliation(s)
- Ghaith Bakdash
- Department of Tumor Immunology, Radboud University Medical Centre and Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
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FC-98 regulates TLR9-mediated of CXCL-10 expression in dendritic cells via MAPK and STAT1 signaling pathway. BIOMED RESEARCH INTERNATIONAL 2014; 2014:926130. [PMID: 24696007 PMCID: PMC3947834 DOI: 10.1155/2014/926130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 12/17/2013] [Accepted: 12/31/2013] [Indexed: 12/17/2022]
Abstract
Dendritic cells (DCs), as the most potent professional antigen presenting cells, play a crucial role in both innate and adaptive immune systems. Genomic bacterial DNA mimicked by unmethylated CpG motifs is discovered to possess immunostimulatory effects. CpG-DNA recognized by Toll-like receptor 9 (TLR9) on DCs arouses many immune diseases (such as cancer, viral infection, and autoimmune disorders). In this study we investigated the effects of FC-98 on CpG-induced bone marrow-derived DCs (BMDCs). The results showed that FC-98 significantly inhibited the CpG-induced BMDCs maturation and function by suppressing the expression of surface markers (CD40, CD80, CD86, and MHCII). Moreover, FC-98 downregulated the expression of C-X-C motif chemokine 10 (CXCL-10) both at the mRNA and protein level after CpG induction. Meanwhile, FC-98 markedly affected the migration of BMDCs to T cells without affecting their endocytosis capacity. Furthermore, FC-98 was confirmed to decrease CXCL-10 expression by inhibiting CpG-induced activation of MAPKs (ERK, JNK, and p38) and STAT1 signaling. Overall, these results suggested that FC-98 was a potential molecule in the treatment of CXCL-10-mediated immune diseases.
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31
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Vacchelli E, Vitale I, Eggermont A, Fridman WH, Fučíková J, Cremer I, Galon J, Tartour E, Zitvogel L, Kroemer G, Galluzzi L. Trial watch: Dendritic cell-based interventions for cancer therapy. Oncoimmunology 2013; 2:e25771. [PMID: 24286020 PMCID: PMC3841205 DOI: 10.4161/onci.25771] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 12/26/2022] Open
Abstract
Dendritic cells (DCs) occupy a privileged position at the interface between innate and adaptive immunity, orchestrating a large panel of responses to both physiological and pathological cues. In particular, whereas the presentation of antigens by immature DCs generally results in the development of immunological tolerance, mature DCs are capable of priming robust, and hence therapeutically relevant, adaptive immune responses. In line with this notion, functional defects in the DC compartment have been shown to etiologically contribute to pathological conditions including (but perhaps not limited to) infectious diseases, allergic and autoimmune disorders, graft rejection and cancer. Thus, the possibility of harnessing the elevated immunological potential of DCs for anticancer therapy has attracted considerable interest from both researchers and clinicians over the last decade. Alongside, several methods have been developed not only to isolate DCs from cancer patients, expand them, load them with tumor-associated antigens and hence generate highly immunogenic clinical grade infusion products, but also to directly target DCs in vivo. This intense experimental effort has culminated in 2010 with the approval by the US FDA of a DC-based preparation (sipuleucel-T, Provenge®) for the treatment of asymptomatic or minimally symptomatic metastatic castration-refractory prostate cancer. As an update to the latest Trial Watch dealing with this exciting field of research (October 2012), here we summarize recent advances in DC-based anticancer regimens, covering both high-impact studies that have been published during the last 13 mo and clinical trials that have been launched in the same period to assess the antineoplastic potential of this variant of cellular immunotherapy.
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Affiliation(s)
- Erika Vacchelli
- Gustave Roussy; Villejuif, France ; Université Paris-Sud/Paris XI; Le Kremlin-Bicêtre, France ; INSERM, U848; Villejuif, France
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32
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Xin H, Yang W, Wang Q, You B, Tong Y, Peng Y. Immune tolerance of skin allograft transplantation induced by immature dendritic cells of a third party carrying donor antigens in mice. Transplant Proc 2013; 45:552-7. [PMID: 23498791 DOI: 10.1016/j.transproceed.2012.07.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 07/05/2012] [Accepted: 07/19/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dendritic cells (DCs) are the most powerful antigen-presenting cells in the body. Immature DCs (imDCs) can induce transplantation tolerance. In this study, using a mouse model of skin transplantation. We explored the antigen uptake by imDCs, changes in phenotype and function after antigen loading, as well as survival of skin grafts. METHODS Mononuclear cells from C57BL/6 mice mixed with a tritiated leucine ([(3)H]Leu) antigen supernate were incubated with Kunming mice imDC and mature DCs. We recorded the expressions of surface molecules that were detected using flow cytometry, mixed lymphocyte reactions, mean survival times, and postoperative morphological changes in skin grafts. RESULTS After the addition of allogeneic antigen supernate, the counts per minute of imDCs were significantly higher than those of mature DCs. The expression rates of I(A)/I(E) and CD80 significantly increased on the cell surface of imDCs. The counts per minute of imDCs in mixed lymphocyte reactions in the presence of allogeneic antigens was significantly higher than those of controls. Comparing mean survival times with controls, skin grafts were significantly longer in the imDCs groups from donors or from a third party carrying donor antigens. CONCLUSIONS ImDCs display a strong antigen uptake, gradually maturing in terms of phenotype and function after loading. Complementary application of cytotoxic T-lymphocyte-associated antigen 4 immunoglobulin blocks the immune response of imDCs. Both imDCs from the third party carrying donor antigens and those from the donor strain can establish antigen-specific immune tolerance to allogeneic skin grafts.
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Affiliation(s)
- H Xin
- Burn and Plastic Surgery Department of PLA 181 Hospital, Guilin, Guangxi, China
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33
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Taylor DD, Gercel-Taylor C. The origin, function, and diagnostic potential of RNA within extracellular vesicles present in human biological fluids. Front Genet 2013; 4:142. [PMID: 23908664 PMCID: PMC3726994 DOI: 10.3389/fgene.2013.00142] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 07/11/2013] [Indexed: 12/16/2022] Open
Abstract
We have previously demonstrated that tumor cells release membranous structures into their extracellular environment, which are termed exosomes, microvesicles or extracellular vesicles depending on specific characteristics, including size, composition and biogenesis pathway. These cell-derived vesicles can exhibit an array of proteins, lipids and nucleic acids derived from the originating tumor. This review focuses of the transcriptome (RNA) of these extracellular vesicles. Based on current data, these vesicular components play essential roles as conveyers of intercellular communication and mediators of many of the pathological conditions associated with cancer development, progression and therapeutic failures. These extracellular vesicles express components responsible for angiogenesis promotion, stromal remodeling, signal pathway activation through growth factor/receptor transfer, chemoresistance, and genetic exchange. These tumor-derived extracellular vesicles not only to represent a central mediator of the tumor microenvironment, but their presence in the peripheral circulation may serve as a surrogate for tumor biopsies, enabling real-time diagnosis and disease monitoring.
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Affiliation(s)
- Douglas D Taylor
- Department of Obstetrics, Gynecology, and Women's Health, University of Louisville School of Medicine Louisville, KY, USA
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34
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Sitikov AS. Antisense RNAs as envoys in intercellular communication: 20 years later. BIOCHEMISTRY (MOSCOW) 2013; 77:1478-86. [PMID: 23379523 DOI: 10.1134/s0006297912130068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
More than 20 years ago we showed that some types of cells are capable of secreting RNAs. It was suggested that these secreted RNAs could serve as molecular envoys in intercellular communication, for example, these RNAs being complementary to specific sites of the gene in another cell (e.g. to the variable region of immunoglobulin gene) could regulate the expression of genes that contain sites in coding regions complementary to antisense RNA. It has since been proven that eukaryotic cells contain antisense RNAs (particularly microRNAs and small interfering RNAs), which can regulate the expression of genes at the posttranscriptional level (the so-called regulatory pathway of RNA interference). Here I provide a short review of advances in the field of intracellular regulation of gene expression by different types of RNAs. In addition, an overview of recent data on the secretion of RNA molecules by different cell types and possible involvement of these secreted antisense RNAs in intercellular regulation of gene expression in target cells is given.
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Kim YH, Han SB, Lee JK. Histone deacetylase inhibitors suppress CXCR4-mediated dendritic cell migration by regulation of maturation process. Cell Immunol 2013; 284:139-45. [DOI: 10.1016/j.cellimm.2013.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 07/05/2013] [Accepted: 07/28/2013] [Indexed: 10/26/2022]
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Abstract
Ideally, cell models should resemble the in vivo conditions; however, in most in vitro experimental models, epithelial cells are cultivated as monolayers, in which the establishment of functional epithelial features is not achieved. To overcome this problem, co-culture experiments with probiotics, dendritic cells and intestinal epithelial cells and three-dimensional models attempt to reconcile the complex and dynamic interactions that exist in vivo between the intestinal epithelium and bacteria on the luminal side and between the epithelium and the underlying immune system on the basolateral side. Additional models include tissue explants, bioreactors and organoids. The present review details the in vitro models used to study host-microbe interactions and explores the new tools that may help in understanding the molecular mechanisms of these interactions.
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37
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Xin H, Yang W, Jiang Y, Wang Y, Tong Y, Peng Y. Studies of amplification, identification and resistant to maturation characteristics on immature dendritic cells derived from human peripheral blood in vitro. In Vitro Cell Dev Biol Anim 2012; 48:469-72. [PMID: 22893211 DOI: 10.1007/s11626-012-9536-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 07/06/2012] [Indexed: 11/25/2022]
Affiliation(s)
- Haiming Xin
- Burn and Plastic Surgery Department, PLA 181 Hospital, Guilin, Guangxi, 541002, China
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38
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Tang J, Tian D, Liu G. Immunosuppressive Effect of Cordyceps CS-4 on Human Monocyte-Derived Dendritic Cellsin Vitro. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 38:961-72. [PMID: 20821826 DOI: 10.1142/s0192415x1000838x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cordyceps CS-4 (C.CS-4), a vegetative form of Cordyceps that contains the same active compounds as the fruit body, is widely used as a substitute of Cordyceps in China. A number of studies have shown that Cordyceps can positively stimulate the activation of T lymphocytes, B lymphocytes, natural killer cells, and macrophages. In our previous study, we found that C.CS-4 could inhibit the proliferation of CD4+ T cells in autoimmune diseases and prevent the lymphocyte infiltration in tissues. However, it is still unclear how the lymphocytes are regulated by C.CS-4. In this study, we investigate the effect of C.CS-4 on human monocyte-derived dendritic cells ( Mo -DCs), which are generated from PBMCs by the treatment with GM-CSF and IL-4. It is observed that Mo -DCs pretreated with C.CS-4 show an immature phenotype. Moreover, C.CS-4 significantly inhibits proliferation of CD4+ T cells, attenuates the production of cytokines in Mo -DCs and balances the Th1 and Th2 response in immune system. Our findings indicate that C.CS-4 exerts the immunosuppressive effect through inhibiting the CD4+ T cells proliferation, regulating cytokine secretions of Th1 and Th2 response ( Mo -DCs) and inducing phenotypic immature of Mo -DCs which may be related to the antigen presenting dysfunction.
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Affiliation(s)
- Jing Tang
- Department of Pharmacy, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Dan Tian
- Department of Pathology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Gaolin Liu
- Department of Pharmacy, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
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Gandini M, Reis SRNI, Torrentes-Carvalho A, Azeredo EL, Freire MDS, Galler R, Kubelka CF. Dengue-2 and yellow fever 17DD viruses infect human dendritic cells, resulting in an induction of activation markers, cytokines and chemokines and secretion of different TNF-α and IFN-α profiles. Mem Inst Oswaldo Cruz 2012; 106:594-605. [PMID: 21894381 DOI: 10.1590/s0074-02762011000500012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 06/08/2011] [Indexed: 02/04/2023] Open
Abstract
Flaviviruses cause severe acute febrile and haemorrhagic infections, including dengue and yellow fever and the pathogenesis of these infections is caused by an exacerbated immune response. Dendritic cells (DCs) are targets for dengue virus (DENV) and yellow fever virus (YF) replication and are the first cell population to interact with these viruses during a natural infection, which leads to an induction of protective immunity in humans. We studied the infectivity of DENV2 (strain 16681), a YF vaccine (YF17DD) and a chimeric YF17D/DENV2 vaccine in monocyte-derived DCs in vitro with regard to cell maturation, activation and cytokine production. Higher viral antigen positive cell frequencies were observed for DENV2 when compared with both vaccine viruses. Flavivirus-infected cultures exhibited dendritic cell activation and maturation molecules. CD38 expression on DCs was enhanced for both DENV2 and YF17DD, whereas OX40L expression was decreased as compared to mock-stimulated cells, suggesting that a T helper 1 profile is favoured. Tumor necrosis factor (TNF)-α production in cell cultures was significantly higher in DENV2-infected cultures than in cultures infected with YF17DD or YF17D/DENV. In contrast, the vaccines induced higher IFN-α levels than DENV2. The differential cytokine production indicates that DENV2 results in TNF induction, which discriminates it from vaccine viruses that preferentially stimulate interferon expression. These differential response profiles may influence the pathogenic infection outcome.
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Affiliation(s)
- Mariana Gandini
- Laboratório de Imunologia Viral, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
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40
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Li CY, Chao LK, Wang SC, Chang HZ, Tsai ML, Fang SH, Liao PC, Ho CL, Chen ST, Cheng WC, Chiang CS, Kuo YH, Hua KF, Hsu IC. Honokiol inhibits LPS-induced maturation and inflammatory response of human monocyte-derived dendritic cells. J Cell Physiol 2011; 226:2338-49. [DOI: 10.1002/jcp.22576] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Dose-dependent immunomodulation of human dendritic cells by the probiotic Lactobacillus rhamnosus Lcr35. PLoS One 2011; 6:e18735. [PMID: 21533162 PMCID: PMC3078917 DOI: 10.1371/journal.pone.0018735] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 03/10/2011] [Indexed: 12/23/2022] Open
Abstract
The response of the immune system to probiotics remains controversial. Some strains modulate the cytokine production of dendritic cells (DCs) in vitro and induce a regulatory response, while others induce conversely a pro-inflammatory response. These strain-dependent effects are thought to be linked to specific interactions between bacteria and pattern recognition receptors. We investigated the effects of a well characterized probiotic strain, Lactobacillus rhamnosus Lcr35, on human monocyte-derived immature DCs, using a wide range of bacterial concentrations (multiplicity of infection, MOI, from 0.01 to 100). DNA microarray and qRT-PCR analysis showed that the probiotic induced a large-scale change in gene expression (nearly 1,700 modulated genes, with 3-fold changes), but only with high doses (MOI, 100). The upregulated genes were mainly involved in immune response and identified a molecular signature of inflammation according to the model of Torri. Flow cytometry analysis also revealed a dose-dependent maturation of the DC membrane phenotype, until DCs reached a semi-mature state, with an upregulation of the membrane expression of CD86, CD83, HLA-DR and TLR4, associated with a down-regulation of DC-SIGN, MR and CD14. Measurement of the DC-secreted cytokines showed that Lcr35 induced a strong dose-dependent increase of the pro-Th1/Th17 cytokine levels (TNFα, IL-1β, IL-12p70, IL-12p40 and IL-23), but only a low increase in IL-10 concentration. The probiotic L. rhamnosus Lcr35 therefore induce a dose-dependent immunomodulation of human DCs leading, at high doses, to the semi-maturation of the cells and to a strong pro-inflammatory effect. These results contribute to a fuller understanding of the mechanism of action of this probiotic, and thus of its potential clinical indications in the treatment of either infectious or IgE-dependent allergic diseases.
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Mitjans M, Galbiati V, Lucchi L, Viviani B, Marinovich M, Galli CL, Corsini E. Use of IL-8 release and p38 MAPK activation in THP-1 cells to identify allergens and to assess their potency in vitro. Toxicol In Vitro 2010; 24:1803-9. [PMID: 20541004 DOI: 10.1016/j.tiv.2010.06.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 05/18/2010] [Accepted: 06/03/2010] [Indexed: 11/25/2022]
Abstract
The local lymph node assay (LLNA) has been developed to assess skin sensitization, and based on the EC3 value, it can also be used to evaluate allergen potency. Therefore, in the development of in vitro alternatives to the LLNA assay, one should not only consider the hazard identification but also the possibility to classify allergens relatively to their potency. We have recently described a selective release of interleukin-8 (IL-8) by chemical allergens in THP-1 cell line, and identified the activation of p38 mitogen-activated protein kinase (p38 MAPK) as a common pathway. Therefore, the purpose of this study was to expand the number of chemicals tested and to investigate whether IL-8 production and p38 MAPK activation can be used to classify allergens according to their potency. THP-1 cells were exposed to the contact allergens (p-benzoquinone, 2-aminophenol, isoeugenol, diethyl maleate, citral and imidazolidinyl urea), selected according to their potency in the LLNA, and to lactic acid and propylene glycol as non-sensitizers. p38 MAPK activation was evaluated 5-15 min after treatment by FACS analysis, while IL-8 release was assed by ELISA following 24h of incubation. p38 MAPK was activated by all contact allergens, including the pro-apten isoeugenol, whereas IL-8 release was significantly increased after stimulation with all allergens tested, except for isoeugenol. The failure of isoeugenol may be due to decrease in the stability of IL-8 mRNA. Irritants exposure, as expected, failed to induce both p38 MAPK activation and IL-8 release. A significant correlation between IL-8 release and the LLNA EC(3) was found (Pearson correlation r=0.743, p=0.0036, n=12). On the contrary, the activation of p38 MAPK showed no significant correlation between LLNA data and vigor of p38 MAPK activation. Overall, data presented confirm our previous observations and reveal IL-8 as potential tool not only to identify sensitizers, with the exception of pro-haptens, but also to classify them according to their potency, while p38 MAPK activation allows the identification of all sensitizers, including pro-haptens, but was not useful for potency classification.
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Affiliation(s)
- M Mitjans
- Departamento Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Spain
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Jimenez F, Quinones MP, Martinez HG, Estrada CA, Clark K, Garavito E, Ibarra J, Melby PC, Ahuja SS. CCR2 plays a critical role in dendritic cell maturation: possible role of CCL2 and NF-kappa B. THE JOURNAL OF IMMUNOLOGY 2010; 184:5571-81. [PMID: 20404272 DOI: 10.4049/jimmunol.0803494] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We postulated that CCR2-driven activation of the transcription factor NF-kappaB plays a critical role in dendritic cell (DC) maturation (e.g., migration, costimulation, and IL-12p70 production), necessary for the generation of protective immune responses against the intracellular pathogen Leishmania major. Supporting this notion, we found that CCR2, its ligand CCL2, and NF-kappaB were required for CCL19 production and adequate Langerhans cell (LC) migration both ex vivo and in vivo. Furthermore, a role for CCR2 in upregulating costimulatory molecules was indicated by the reduced expression of CD80, CD86, and CD40 in Ccr2(-/-) bone marrow-derived dendritic cells (BMDCs) compared with wild-type (WT) BMDCs. Four lines of evidence suggested that CCR2 plays a critical role in the induction of protective immunity against L. major by regulating IL-12p70 production and migration of DC populations such as LCs. First, compared with WT, Ccr2(-/-) lymph node cells, splenocytes, BMDCs, and LCs produced lower levels of IL-12p70 following stimulation with LPS/IFN-gamma or L. major. Second, a reduced number of LCs carried L. major from the skin to the draining lymph nodes in Ccr2(-/-) mice compared with WT mice. Third, early treatment with exogenous IL-12 reversed the susceptibility to L. major infection in Ccr2(-/-) mice. Finally, disruption of IL-12p70 in radioresistant cells, such as LCs, but not in BMDCs resulted in the inability to mount a fully protective immune response in bone marrow chimeric mice. Collectively, our data point to an important role for CCR2-driven activation of NF-kappaB in the regulation of DC/LC maturation processes that regulate protective immunity against intracellular pathogens.
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Affiliation(s)
- Fabio Jimenez
- Audie L. Murphy Division, Veterans Administration Center for Research on AIDS and HIV-1 Infection, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
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Kim ES, Lee JK. Histone deacetylase inhibitors decrease the antigen presenting activity of murine bone marrow derived dendritic cells. Cell Immunol 2009; 262:52-7. [PMID: 20096829 DOI: 10.1016/j.cellimm.2009.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Accepted: 12/21/2009] [Indexed: 11/29/2022]
Abstract
Once activated by infected pathogens, dendritic cells (DCs) undergo activation and release inflammatory mediators responsible for the signs of inflammation. Our aim was to elucidate whether histone deacetylase inhibitors (HDACIs), trichostatine-A (TSA), scriptaid (ST) and sodium butylate (SB) regulate the inflammatory response of DCs. Pre-treatment with TSA and ST reduced the syngeneic and allogeneic-antigen presenting activity of LPS-stimulated DCs in a dose dependent manner to statistical significance. SB also reduced the antigen presenting activity of DCs, but not significantly. HDACIs mediate their effects through the modulation of DC maturation and pre-treatment of the DCs with TSA or ST prior to treatment with LPS reduced the expressions of DC mature markers to the level of immature dendritic cells (iDCs). Moreover, TSA and ST reduced the IL-2 production from LPS-stimulated mature DCs. Our results suggest that HDACIs may actively modulate the DC-induced inflammatory response through inhibition of phenotypical or functional maturation.
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Affiliation(s)
- Eun Sun Kim
- Department of Biology Education, College of Education, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
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Kooij G, Backer R, Koning JJ, Reijerkerk A, van Horssen J, van der Pol SMA, Drexhage J, Schinkel A, Dijkstra CD, den Haan JMM, Geijtenbeek TBH, de Vries HE. P-glycoprotein acts as an immunomodulator during neuroinflammation. PLoS One 2009; 4:e8212. [PMID: 19997559 PMCID: PMC2785479 DOI: 10.1371/journal.pone.0008212] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Accepted: 11/09/2009] [Indexed: 11/22/2022] Open
Abstract
Background Multiple sclerosis is an inflammatory demyelinating disease of the central nervous system in which autoreactive myelin-specific T cells cause extensive tissue damage, resulting in neurological deficits. In the disease process, T cells are primed in the periphery by antigen presenting dendritic cells (DCs). DCs are considered to be crucial regulators of specific immune responses and molecules or proteins that regulate DC function are therefore under extensive investigation. We here investigated the potential immunomodulatory capacity of the ATP binding cassette transporter P-glycoprotein (P-gp). P-gp generally drives cellular efflux of a variety of compounds and is thought to be involved in excretion of inflammatory agents from immune cells, like DCs. So far, the immunomodulatory role of these ABC transporters is unknown. Methods and Findings Here we demonstrate that P-gp acts as a key modulator of adaptive immunity during an in vivo model for neuroinflammation. The function of the DC is severely impaired in P-gp knockout mice (Mdr1a/1b−/−), since both DC maturation and T cell stimulatory capacity is significantly decreased. Consequently, Mdr1a/1b −/− mice develop decreased clinical signs of experimental autoimmune encephalomyelitis (EAE), an animal model for multiple sclerosis. Reduced clinical signs coincided with impaired T cell responses and T cell-specific brain inflammation. We here describe the underlying molecular mechanism and demonstrate that P-gp is crucial for the secretion of pro-inflammatory cytokines such as TNF-α and IFN-γ. Importantly, the defect in DC function can be restored by exogenous addition of these cytokines. Conclusions Our data demonstrate that P-gp downmodulates DC function through the regulation of pro-inflammatory cytokine secretion, resulting in an impaired immune response. Taken together, our work highlights a new physiological role for P-gp as an immunomodulatory molecule and reveals a possible new target for immunotherapy.
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Affiliation(s)
- Gijs Kooij
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Ronald Backer
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Jasper J. Koning
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Arie Reijerkerk
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Jack van Horssen
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Susanne M. A. van der Pol
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Joost Drexhage
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Alfred Schinkel
- Department of Molecular Biology, Netherlands Cancer Institute (NKI), Amsterdam, The Netherlands
| | - Christine D. Dijkstra
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Joke M. M. den Haan
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
| | - Teunis B. H. Geijtenbeek
- Center for Experimental and Molecular Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Helga E. de Vries
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands
- * E-mail:
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Tabas I. Macrophage death and defective inflammation resolution in atherosclerosis. Nat Rev Immunol 2009; 10:36-46. [PMID: 19960040 DOI: 10.1038/nri2675] [Citation(s) in RCA: 811] [Impact Index Per Article: 54.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A key event in atherosclerosis is a maladaptive inflammatory response to subendothelial lipoproteins. A crucial aspect of this response is a failure to resolve inflammation, which normally involves the suppression of inflammatory cell influx, effective clearance of apoptotic cells and promotion of inflammatory cell egress. Defects in these processes promote the progression of atherosclerotic lesions into dangerous plaques, which can trigger atherothrombotic vascular disease, the leading cause of death in industrialized societies. In this Review I provide an overview of these concepts, with a focus on macrophage death and defective apoptotic cell clearance, and discuss new therapeutic strategies designed to boost inflammation resolution in atherosclerosis.
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Affiliation(s)
- Ira Tabas
- Department of Medicine, Physiology and Cellular Biophysics, Columbia University, New York, New York 10032, USA.
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Roles of capsule and lipopolysaccharide O antigen in interactions of human monocyte-derived dendritic cells and Klebsiella pneumoniae. Infect Immun 2009; 78:210-9. [PMID: 19841082 DOI: 10.1128/iai.00864-09] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In humans, Klebsiella pneumoniae is a saprophytic bacterium of the nasopharyngeal and intestinal mucosae that is also frequently responsible for severe nosocomial infections. Two major factors of virulence, capsular polysaccharide (CPS) and lipopolysaccharide (LPS) O antigen, are involved in mucosal colonization and the development of infections. These bacterial surface structures are likely to play major roles in interactions with the mucosal immune system, which are orchestrated by a network of surveillance based on dendritic cells (DCs). To determine the roles of K. pneumoniae CPS and LPS in the DC response, we investigated the response of immature human monocyte-derived DCs to bacterial challenge with a wild-type strain and its isogenic mutants deficient in CPS or LPS O-antigen production. As observed by flow cytometry and confocal laser microscopy, the rate of phagocytosis was inversely proportional to the amount of CPS on the bacterial cell surface, with LPS playing little or no role. The K. pneumoniae wild-type strain induced DC maturation with upregulation of CD83, CD86, and TLR4 and downregulation of CD14 and DC-SIGN. With CPS mutants, we observed a greater decrease in DC-SIGN, suggesting a superior maturation of DCs. In addition, incubation of DCs with CPS mutants, and to a lesser extent with LPS mutants, resulted in significantly higher Th1 cytokine production. Combined, our findings suggest that K. pneumoniae CPS, by hampering bacterial binding and internalization, induces a defective immunological host response, including maturation of DCs and pro-Th1 cytokine production, whereas the LPS O antigen seems to be involved essentially in DC activation.
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Kao RL, Browder W, Li C. Cellular cardiomyoplasty: what have we learned? Asian Cardiovasc Thorac Ann 2009; 17:89-101. [PMID: 19515892 DOI: 10.1177/0218492309104144] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Restoring blood flow, improving perfusion, reducing clinical symptoms, and augmenting ventricular function are the goals after acute myocardial infarction. Other than cardiac transplantation, no standard clinical procedure is available to restore damaged myocardium. Since we first reported cellular cardiomyoplasty in 1989, successful outcomes have been confirmed by experimental and clinical studies, but definitive long-term efficacy requires large-scale placebo-controlled double-blind randomized trials. On meta-analysis, stem cell-treated groups had significantly improved left ventricular ejection fraction, reduced infarct scar size, and decreased left ventricular end-systolic volume. Fewer myocardial infarctions, deaths, readmissions for heart failure, and repeat revascularizations were additional benefits. Encouraging clinical findings have been reported using satellite or bone marrow stem cells, but understanding of the benefit mechanisms demands additional studies. Adult mammalian ventricular myocardium lacks adequate regeneration capability, and cellular cardiomyoplasty offers a new way to overcome this; the poor retention and engraftment rate and high apoptotic rate of the implanted stem cells limit outcomes. The ideal type and number of cells, optimal timing of cell therapy, and ideal cell delivery method depend on determining the beneficial mechanisms. Cellular cardiomyoplasty has progressed rapidly in the last decade. A critical review may help us to better plan the future direction.
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Affiliation(s)
- Race L Kao
- Department of Surgery, James H Quillen College of Medicine, East Tennessee State University, Johnson City.
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Li CY, Chiang CS, Tsai ML, Hseu RS, Shu WY, Chuang CY, Sun YC, Chang YS, Lin JG, Chen CS, Huang CL, Hsu IC. Two-sided effect ofCordyceps sinensison dendritic cells in different physiological stages. J Leukoc Biol 2009; 85:987-95. [DOI: 10.1189/jlb.0908573] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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50
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Silva MA. Intestinal dendritic cells and epithelial barrier dysfunction in Crohn's disease. Inflamm Bowel Dis 2009; 15:436-53. [PMID: 18821596 DOI: 10.1002/ibd.20660] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Crohn's disease (CD) is a chronic gastrointestinal inflammatory disorder considered to be the result of an inappropriate and exaggerated mucosal immune reaction to yet undefined triggers from the gut flora in genetically predisposed individuals. This inflammatory phenomenon has been characterized by an adaptive T-cell response in addition to an abnormal function of the innate immune system. Dendritic cells (DCs) are constituents of this innate system, inducing T-cell activation via antigen presentation. In the gut, mucosal DCs are separated from the luminal milieu by a monolayer of cylindrical epithelial cells that forms an anatomical and physiological barrier that controls the normal traffic of antigens between both compartments. An imbalance of colonic and ileal DC distribution in tissues from CD patients as well as functional differences between DCs isolated from normal and diseased intestinal samples have been demonstrated. Moreover, a gut barrier defect in the para- and transepithelial routes in addition to a significant reduction in the intestinal secretion of epithelial products involved in barrier function has been well documented in CD. Therefore, this may expose the diseased mucosa to overwhelming amounts of antigens, resulting in abnormal DC activation and a subsequent imbalance in their distribution. In conclusion, this review provides a summary of relevant progress in CD, intestinal epithelial permeability, and DCs highlighting a potential relationship between increased epithelial permeability and abnormal DC distribution during the pathogenesis of intestinal inflammation.
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Affiliation(s)
- Manuel A Silva
- Department of Pathology and Molecular Medicine, Intestinal Disease Research Programme, McMaster University, Hamilton, Ontario, Canada.
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