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Wu Z, Xia M, Wang J, Aguilar MM, Buist-Homan M, Moshage H. Extracellular vesicles originating from steatotic hepatocytes promote hepatic stellate cell senescence via AKT/mTOR signaling. Cell Biochem Funct 2024; 42:e4077. [PMID: 38881228 DOI: 10.1002/cbf.4077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/24/2024] [Accepted: 06/06/2024] [Indexed: 06/18/2024]
Abstract
The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) is increasing rapidly due to the obesity epidemic. In the inflammatory stages of MASLD (MASH), activation of hepatic stellate cells (HSCs) leads to initiation and progression of liver fibrosis. Extracellular vesicles (EVs) are released from all cell types and play an important role in intercellular communication. However, the role of EVs released from hepatocytes in the context of MASLD is largely unknown. Therefore, the present study aimed to investigate the role of EVs derived from both normal and steatotic (free fatty acid-treated) hepatocytes on the phenotype of HSCs via the senescence pathway. Primary rat hepatocytes were treated with free fatty acids (FFAs: oleic acid and palmitic acid). EVs were collected by ultracentrifugation. EVs markers and HSCs activation and senescence markers were assessed by Western blot analysis, qPCR and cytochemistry. Reactive oxygen species (ROS) production was assessed by fluorescence assay. RNA profiles of EVs were evaluated by sequencing. We found that EVs from hepatocytes treated with FFAs (FFA-EVs) inhibit collagen type 1 and α-smooth muscle actin expression, increase the production of ROS and the expression of senescence markers (IL-6, IL-1β, p21 and senescence-associated β-galactosidase activity) in early activating HSCs via the AKT-mTOR pathway. Sequencing showed differentially enriched RNA species between the EVs groups. In conclusion, EVs from FFA-treated hepatocytes inhibit HSC activation by inducing senescence via the AKT-mTOR signaling pathway. Determining the components in EVs from steatotic hepatocytes that induce HSC senescence may lead to the identification of novel targets for intervention in the treatment of MASLD in the future.
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Affiliation(s)
- Zongmei Wu
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mengmeng Xia
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Junyu Wang
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Magnolia Martinez Aguilar
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Manon Buist-Homan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Han Moshage
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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2
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Rigg E, Wang J, Xue Z, Lunavat TR, Liu G, Hoang T, Parajuli H, Han M, Bjerkvig R, Nazarov PV, Nicot N, Kreis S, Margue C, Nomigni MT, Utikal J, Miletic H, Sundstrøm T, Ystaas LAR, Li X, Thorsen F. Inhibition of extracellular vesicle-derived miR-146a-5p decreases progression of melanoma brain metastasis via Notch pathway dysregulation in astrocytes. J Extracell Vesicles 2023; 12:e12363. [PMID: 37759347 PMCID: PMC10533779 DOI: 10.1002/jev2.12363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 08/04/2023] [Accepted: 08/20/2023] [Indexed: 09/29/2023] Open
Abstract
Melanoma has the highest propensity of all cancers to metastasize to the brain with a large percentage of late-stage patients developing metastases in the central nervous system (CNS). It is well known that metastasis establishment, cell survival, and progression are affected by tumour-host cell interactions where changes in the host cellular compartments likely play an important role. In this context, miRNAs transferred by tumour derived extracellular vesicles (EVs) have previously been shown to create a favourable tumour microenvironment. Here, we show that miR-146a-5p is highly expressed in human melanoma brain metastasis (MBM) EVs, both in MBM cell lines as well as in biopsies, thereby modulating the brain metastatic niche. Mechanistically, miR-146a-5p was transferred to astrocytes via EV delivery and inhibited NUMB in the Notch signalling pathway. This resulted in activation of tumour-promoting cytokines (IL-6, IL-8, MCP-1 and CXCL1). Brain metastases were significantly reduced following miR-146a-5p knockdown. Corroborating these findings, miR-146a-5p inhibition led to a reduction of IL-6, IL-8, MCP-1 and CXCL1 in astrocytes. Following molecular docking analysis, deserpidine was identified as a functional miR-146a-5p inhibitor, both in vitro and in vivo. Our results highlight the pro-metastatic function of miR-146a-5p in EVs and identifies deserpidine for targeted adjuvant treatment.
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Affiliation(s)
- Emma Rigg
- Department of BiomedicineUniversity of BergenBergenNorway
| | - Jiwei Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
- Department of BiomedicineUniversity of BergenBergenNorway
- Shandong Key Laboratory of Brain Function RemodelingJinanChina
| | - Zhiwei Xue
- Department of BiomedicineUniversity of BergenBergenNorway
- Shandong Key Laboratory of Brain Function RemodelingJinanChina
| | - Taral R. Lunavat
- Department of BiomedicineUniversity of BergenBergenNorway
- Department of Neurology, Molecular Neurogenetics Unit‐West, Massachusetts General HospitalHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Guowei Liu
- Department of BiomedicineUniversity of BergenBergenNorway
- Shandong Key Laboratory of Brain Function RemodelingJinanChina
| | - Tuyen Hoang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
| | - Himalaya Parajuli
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
| | - Mingzhi Han
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
- Department of BiomedicineUniversity of BergenBergenNorway
- Shandong Key Laboratory of Brain Function RemodelingJinanChina
| | - Rolf Bjerkvig
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
| | - Petr V. Nazarov
- Bioinformatics Platform and Multiomics Data Science Research Group, Department of Cancer ResearchLuxembourg Institute of HealthLuxembourg
| | - Nathalie Nicot
- LuxGen Genome Center, Luxembourg Institute of HealthLaboratoire National de SantéDudelangeLuxembourg
| | - Stephanie Kreis
- Department of Life Sciences and MedicineUniversity of LuxembourgLuxembourg
| | - Christiane Margue
- Department of Life Sciences and MedicineUniversity of LuxembourgLuxembourg
| | | | - Jochen Utikal
- Skin Cancer UnitGerman Cancer Research Center (DKFZ)HeidelbergGermany
- Department of Dermatology, Venereology and AllergologyUniversity Medical Center Mannheim, Ruprecht‐Karl University of HeidelbergMannheimGermany
- DKFZ Hector Cancer Institute at the University Medical Center MannheimMannheimGermany
| | - Hrvoje Miletic
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
- Department of PathologyHaukeland University HospitalBergenNorway
| | - Terje Sundstrøm
- Department of NeurosurgeryHaukeland University HospitalBergenNorway
- Department of Clinical MedicineUniversity of BergenBergenNorway
| | - Lars A. R. Ystaas
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
| | - Xingang Li
- Department of BiomedicineUniversity of BergenBergenNorway
- Shandong Key Laboratory of Brain Function RemodelingJinanChina
| | - Frits Thorsen
- Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain‐Inspired Science, Cheeloo College of MedicineShandong UniversityJinanChina
- Department of BiomedicineUniversity of BergenBergenNorway
- Department of NeurosurgeryHaukeland University HospitalBergenNorway
- Molecular Imaging Center, Department of BiomedicineUniversity of BergenBergenNorway
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3
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Geissler M, Jia W, Kiraz EN, Kulacz I, Liu X, Rombach A, Prinz V, Jussen D, Kokkaliaris KD, Medyouf H, Sevenich L, Czabanka M, Broggini T. The Brain Pre-Metastatic Niche: Biological and Technical Advancements. Int J Mol Sci 2023; 24:10055. [PMID: 37373202 DOI: 10.3390/ijms241210055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Metastasis, particularly brain metastasis, continues to puzzle researchers to this day, and exploring its molecular basis promises to break ground in developing new strategies for combatting this deadly cancer. In recent years, the research focus has shifted toward the earliest steps in the formation of metastasis. In this regard, significant progress has been achieved in understanding how the primary tumor affects distant organ sites before the arrival of tumor cells. The term pre-metastatic niche was introduced for this concept and encompasses all influences on sites of future metastases, ranging from immunological modulation and ECM remodeling to the softening of the blood-brain barrier. The mechanisms governing the spread of metastasis to the brain remain elusive. However, we begin to understand these processes by looking at the earliest steps in the formation of metastasis. This review aims to present recent findings on the brain pre-metastatic niche and to discuss existing and emerging methods to further explore the field. We begin by giving an overview of the pre-metastatic and metastatic niches in general before focusing on their manifestations in the brain. To conclude, we reflect on the methods usually employed in this field of research and discuss novel approaches in imaging and sequencing.
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Affiliation(s)
- Maximilian Geissler
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Weiyi Jia
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Emine Nisanur Kiraz
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Ida Kulacz
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Xiao Liu
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Adrian Rombach
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Vincent Prinz
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Daniel Jussen
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
| | - Konstantinos D Kokkaliaris
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, 60528 Frankfurt am Main, Germany
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60528 Frankfurt am Main, Germany
- Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, 60528 Frankfurt am Main, Germany
| | - Hind Medyouf
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60528 Frankfurt am Main, Germany
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, 60528 Frankfurt am Main, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Lisa Sevenich
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60528 Frankfurt am Main, Germany
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, 60528 Frankfurt am Main, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Marcus Czabanka
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
- Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, 60528 Frankfurt am Main, Germany
| | - Thomas Broggini
- Department of Neurosurgery, University Hospital, Goethe-University, 60528 Frankfurt am Main, Germany
- Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, 60528 Frankfurt am Main, Germany
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Vasco C, Rizzo A, Cordiglieri C, Corsini E, Maderna E, Ciusani E, Salmaggi A. The Role of Adhesion Molecules and Extracellular Vesicles in an In Vitro Model of the Blood-Brain Barrier for Metastatic Disease. Cancers (Basel) 2023; 15:cancers15113045. [PMID: 37297006 DOI: 10.3390/cancers15113045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Metastatic brain disease (MBD) has seen major advances in clinical management, focal radiation therapy approaches and knowledge of biological factors leading to improved prognosis. Extracellular vesicles (EVs) have been found to play a role in tumor cross-talk with the target organ, contributing to the formation of a premetastatic niche. Human lung and breast cancer cell lines were characterized for adhesion molecule expression and used to evaluate their migration ability in an in vitro model. Conditioned culture media and isolated EVs, characterized by super resolution and electron microscopy, were tested to evaluate their pro-apoptotic properties on human umbilical vein endothelial cells (HUVECs) and human cerebral microvascular endothelial cells (HCMEC/D3) by annexin V binding assay. Our data showed a direct correlation between expression of ICAM1, ICAM2, β3-integrin and α2-integrin and the ability to firmly adhere to the blood-brain barrier (BBB) model, whereas the same molecules were down-regulated at a later step. Extracellular vesicles released by tumor cell lines were shown to be able to induce apoptosis in HUVEC while brain endothelial cells showed to be more resistant.
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Affiliation(s)
- Chiara Vasco
- Laboratory of Clinical Chemistry SMeL122, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | - Ambra Rizzo
- Laboratory of Clinical Chemistry SMeL122, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | - Chiara Cordiglieri
- Preclinical Neuroimmunology Lab, Neurology IV Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
- Imaging Facility, National Institute of Molucular Genetics (INGM) "Romeo ed Enrica Invernizzi", c/o Policlinico di Milano Hospital, Padiglione Invernizzi, Via Francesco Sforza 35, 20122 Milan, Italy
| | - Elena Corsini
- Laboratory of Clinical Chemistry SMeL122, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | - Emanuela Maderna
- Neurology 5/Neuropathology Unit, Fondazione IRCCS Istituto Neurologico C. Besta, 20133 Milan, Italy
| | - Emilio Ciusani
- Laboratory of Clinical Chemistry SMeL122, Fondazione IRCCS Istituto Neurologico "Carlo Besta", 20133 Milan, Italy
| | - Andrea Salmaggi
- Neuroscience Department-Neurology/Stroke Unit, Ospedale A. Manzoni, ASST Lecco, 23900 Lecco, Italy
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5
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Fang X, Wang Y, Wang S, Liu B. Nanomaterials assisted exosomes isolation and analysis towards liquid biopsy. Mater Today Bio 2022; 16:100371. [PMID: 35937576 PMCID: PMC9352971 DOI: 10.1016/j.mtbio.2022.100371] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/13/2022] [Accepted: 07/17/2022] [Indexed: 11/18/2022] Open
Abstract
Exosomes has attracted tremendous research interests as they are emerging as a new paradigm of liquid biopsy. Although the concentration of exosomes in blood is relatively abundant, there still exists various vesicle-like nanoparticles, such as microvesicles, apoptotic bodies. It's an urgent need to isolate and enrich exosomes from the complex contaminants in biofluid samples. Moreover, the expressing level of exosomal biomarkers varies a lot, which make the sensitive molecular detection of exosomes in high demand. Unfortunately, the efficient isolation and sensitive molecular quantification of exosomes is still a major obstacle hindering the further development and clinical application of exosome-based liquid biopsy. Nanomaterials, with unique physiochemical properties, have been widely used in biosensing and analysis aspects, thus they are thought as powerful tools for effective purification and molecular analysis of exosomes. In this review, we summarized the most recent progresses in nanomaterials assisted exosome isolation and analysis towards liquid biopsy. On the one hand, nanomaterials can be used as capture substrates to afford large binding area and specific affinity to exosomes. Meanwhile, nanomaterials can also be served as promising signal transducers and amplifiers for molecular detection of exosomes. Furthermore, we also pointed out several potential and promising research directions in nanomaterials assisted exosome analysis. It's envisioned that this review will give the audience a complete outline of nanomaterials in exosome study, and further promote the intersection of nanotechnology and bio-analysis.
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Affiliation(s)
- Xiaoni Fang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yuqing Wang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Shurong Wang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Baohong Liu
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
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6
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Molecular Docking and Intracellular Translocation of Extracellular Vesicles for Efficient Drug Delivery. Int J Mol Sci 2022; 23:ijms232112971. [PMID: 36361760 PMCID: PMC9659046 DOI: 10.3390/ijms232112971] [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: 08/10/2022] [Revised: 10/07/2022] [Accepted: 10/21/2022] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles (EVs), including exosomes, mediate intercellular communication by delivering their contents, such as nucleic acids, proteins, and lipids, to distant target cells. EVs play a role in the progression of several diseases. In particular, programmed death-ligand 1 (PD-L1) levels in exosomes are associated with cancer progression. Furthermore, exosomes are being used for new drug-delivery systems by modifying their membrane peptides to promote their intracellular transduction via micropinocytosis. In this review, we aim to show that an efficient drug-delivery system and a useful therapeutic strategy can be established by controlling the molecular docking and intracellular translocation of exosomes. We summarise the mechanisms of molecular docking of exosomes, the biological effects of exosomes transmitted into target cells, and the current state of exosomes as drug delivery systems.
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7
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Aili Y, Maimaitiming N, Qin H, Ji W, Fan G, Wang Z, Wang Y. Tumor microenvironment and exosomes in brain metastasis: Molecular mechanisms and clinical application. Front Oncol 2022; 12:983878. [PMID: 36338717 PMCID: PMC9631487 DOI: 10.3389/fonc.2022.983878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/28/2022] [Indexed: 12/03/2022] Open
Abstract
Metastasis is one of the important biological features of malignant tumors and one of the main factors responsible for poor prognosis. Although the widespread application of newer clinical technologies and their continuous development have significantly improved survival in patients with brain metastases, there is no uniform standard of care. More effective therapeutic measures are therefore needed to improve prognosis. Understanding the mechanisms of tumor cell colonization, growth, and invasion in the central nervous system is of particular importance for the prevention and treatment of brain metastases. This process can be plausibly explained by the “seed and soil” hypothesis, which essentially states that tumor cells can interact with various components of the central nervous system microenvironment to produce adaptive changes; it is this interaction that determines the development of brain metastases. As a novel form of intercellular communication, exosomes play a key role in the brain metastasis microenvironment and carry various bioactive molecules that regulate receptor cell activity. In this paper, we review the roles and prospects of brain metastatic tumor cells, the brain metastatic tumor microenvironment, and exosomes in the development and clinical management of brain metastases.
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Affiliation(s)
- Yirizhati Aili
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Nuersimanguli Maimaitiming
- Department of Four Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Hu Qin
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Wenyu Ji
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Guofeng Fan
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Zengliang Wang
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- School of Health Management, Xinjiang Medical University, Urumqi, China
- Department of Neurosurgery, Xinjiang Bazhou People’s Hospital, Xinjiang, China
- *Correspondence: Zengliang Wang, ; Yongxin Wang,
| | - Yongxin Wang
- Department of Neurosurgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- *Correspondence: Zengliang Wang, ; Yongxin Wang,
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Matsuzaka Y, Yashiro R. Regulation of Extracellular Vesicle-Mediated Immune Responses against Antigen-Specific Presentation. Vaccines (Basel) 2022; 10:1691. [PMID: 36298556 PMCID: PMC9607341 DOI: 10.3390/vaccines10101691] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 11/24/2022] Open
Abstract
Extracellular vesicles (EVs) produced by various immune cells, including B and T cells, macrophages, dendritic cells (DCs), natural killer (NK) cells, and mast cells, mediate intercellular communication and have attracted much attention owing to the novel delivery system of molecules in vivo. DCs are among the most active exosome-secreting cells of the immune system. EVs produced by cancer cells contain cancer antigens; therefore, the development of vaccine therapy that does not require the identification of cancer antigens using cancer-cell-derived EVs may have significant clinical implications. In this review, we summarise the molecular mechanisms underlying EV-based immune responses and their therapeutic effects on tumour vaccination.
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Affiliation(s)
- Yasunari Matsuzaka
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira 187-8551, Tokyo, Japan
| | - Ryu Yashiro
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira 187-8551, Tokyo, Japan
- Department of Infectious Diseases, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi 181-8611, Tokyo, Japan
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