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Gambardella AR, Antonucci C, Zanetti C, Noto F, Andreone S, Vacca D, Pellerito V, Sicignano C, Parrottino G, Tirelli V, Tinari A, Falchi M, De Ninno A, Businaro L, Loffredo S, Varricchi G, Tripodo C, Afferni C, Parolini I, Mattei F, Schiavoni G. IL-33 stimulates the anticancer activities of eosinophils through extracellular vesicle-driven reprogramming of tumor cells. J Exp Clin Cancer Res 2024; 43:209. [PMID: 39061080 PMCID: PMC11282757 DOI: 10.1186/s13046-024-03129-1] [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: 05/01/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024] Open
Abstract
Immune cell-derived extracellular vesicles (EV) affect tumor progression and hold promise for therapeutic applications. Eosinophils are major effectors in Th2-related pathologies recently implied in cancer. Here, we evaluated the anti-tumor activities of eosinophil-derived EV following activation with the alarmin IL-33. We demonstrate that IL-33-activated mouse and human eosinophils produce higher quantities of EV with respect to eosinophils stimulated with IL-5. Following incorporation of EV from IL-33-activated eosinophils (Eo33-EV), but not EV from IL-5-treated eosinophils (Eo5-EV), mouse and human tumor cells increased the expression of cyclin-dependent kinase inhibitor (CDKI)-related genes resulting in cell cycle arrest in G0/G1, reduced proliferation and inhibited tumor spheroid formation. Moreover, tumor cells incorporating Eo33-EV acquired an epithelial-like phenotype characterized by E-Cadherin up-regulation, N-Cadherin downregulation, reduced cell elongation and migratory extent in vitro, and impaired capacity to metastasize to lungs when injected in syngeneic mice. RNA sequencing revealed distinct mRNA signatures in Eo33-EV and Eo5-EV with increased presence of tumor suppressor genes and enrichment in pathways related to epithelial phenotypes and negative regulation of cellular processes in Eo33-EV compared to Eo5-EV. Our studies underscore novel IL-33-stimulated anticancer activities of eosinophils through EV-mediated reprogramming of tumor cells opening perspectives on the use of eosinophil-derived EV in cancer therapy.
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Affiliation(s)
| | - Caterina Antonucci
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Cristiana Zanetti
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Francesco Noto
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Sara Andreone
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Davide Vacca
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", University of Palermo, Palermo, 90127, Italy
| | - Valentina Pellerito
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", University of Palermo, Palermo, 90127, Italy
| | - Chiara Sicignano
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Giuseppe Parrottino
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | | | - Antonella Tinari
- National Center for Gender Medicine, Istituto Superiore Di Sanità, Rome, Italy
| | - Mario Falchi
- National AIDS Center, Istituto Superiore Di Sanità, Rome, Italy
| | - Adele De Ninno
- CNR-IFN Institute for Photonics and Nanotechnologies, Rome, Italy
| | - Luca Businaro
- CNR-IFN Institute for Photonics and Nanotechnologies, Rome, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO), Center of Excellence (CoE), Naples, 80131, Italy
- Institute of Experimental Endocrinology and Oncology, National Research Council (CNR), Naples, 80131, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO), Center of Excellence (CoE), Naples, 80131, Italy
- Institute of Experimental Endocrinology and Oncology, National Research Council (CNR), Naples, 80131, Italy
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", University of Palermo, Palermo, 90127, Italy
| | - Claudia Afferni
- National Center for Drug Research and Evaluation, Istituto Superiore Di Sanità, Rome, Italy
| | - Isabella Parolini
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy
- Laboratory of Molecular Medicine and DNA Repair, Department of Medicine, University of Udine, Udine, Italy
| | - Fabrizio Mattei
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy.
| | - Giovanna Schiavoni
- Department of Oncology and Molecular Medicine, Istituto Superiore Di Sanità, Rome, Italy.
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2
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Bertuccini L, Boussadia Z, Salzano AM, Vanni I, Passerò I, Nocita E, Scaloni A, Sanchez M, Sargiacomo M, Fiani ML, Tosini F. Unveiling Cryptosporidium parvum sporozoite-derived extracellular vesicles: profiling, origin, and protein composition. Front Cell Infect Microbiol 2024; 14:1367359. [PMID: 38660488 PMCID: PMC11039866 DOI: 10.3389/fcimb.2024.1367359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
Cryptosporidium parvum is a common cause of a zoonotic disease and a main cause of diarrhea in newborns. Effective drugs or vaccines are still lacking. Oocyst is the infective form of the parasite; after its ingestion, the oocyst excysts and releases four sporozoites into the host intestine that rapidly attack the enterocytes. The membrane protein CpRom1 is a large rhomboid protease that is expressed by sporozoites and recognized as antigen by the host immune system. In this study, we observed the release of CpRom1 with extracellular vesicles (EVs) that was not previously described. To investigate this phenomenon, we isolated and resolved EVs from the excystation medium by differential ultracentrifugation. Fluorescence flow cytometry and transmission electron microscopy (TEM) experiments identified two types of sporozoite-derived vesicles: large extracellular vesicles (LEVs) and small extracellular vesicles (SEVs). Nanoparticle tracking analysis (NTA) revealed mode diameter of 181 nm for LEVs and 105 nm for SEVs, respectively. Immunodetection experiments proved the presence of CpRom1 and the Golgi protein CpGRASP in LEVs, while immune-electron microscopy trials demonstrated the localization of CpRom1 on the LEVs surface. TEM and scanning electron microscopy (SEM) showed that LEVs were generated by means of the budding of the outer membrane of sporozoites; conversely, the origin of SEVs remained uncertain. Distinct protein compositions were observed between LEVs and SEVs as evidenced by their corresponding electrophoretic profiles. Indeed, a dedicated proteomic analysis identified 5 and 16 proteins unique for LEVs and SEVs, respectively. Overall, 60 proteins were identified in the proteome of both types of vesicles and most of these proteins (48 in number) were already identified in the molecular cargo of extracellular vesicles from other organisms. Noteworthy, we identified 12 proteins unique to Cryptosporidium spp. and this last group included the immunodominant parasite antigen glycoprotein GP60, which is one of the most abundant proteins in both LEVs and SEVs.
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Affiliation(s)
| | - Zaira Boussadia
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Anna Maria Salzano
- Proteomics, Metabolomics and Mass Spectrometry laboratory, ISPAAM, Consiglio Nazionale delle Ricerche, Portici, Italy
| | - Ilaria Vanni
- Department of Food Safety, Nutrition and Veterinary Public Health, SANV, Istituto Superiore di Sanità, Rome, Italy
| | - Ilaria Passerò
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Emanuela Nocita
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Andrea Scaloni
- Proteomics, Metabolomics and Mass Spectrometry laboratory, ISPAAM, Consiglio Nazionale delle Ricerche, Portici, Italy
| | | | - Massimo Sargiacomo
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Maria Luisa Fiani
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Fabio Tosini
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
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3
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Castellani G, Buccarelli M, D'Alessandris QG, Ilari R, Cappannini A, Pedini F, Boe A, Lulli V, Parolini I, Giannetti S, Biffoni M, Zappavigna V, Marziali G, Pallini R, Ricci-Vitiani L. Extracellular vesicles produced by irradiated endothelial or Glioblastoma stem cells promote tumor growth and vascularization modulating tumor microenvironment. Cancer Cell Int 2024; 24:72. [PMID: 38347567 PMCID: PMC10863174 DOI: 10.1186/s12935-024-03253-0] [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: 11/30/2023] [Accepted: 02/01/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Glioblastoma (GBM) is the most lethal primary brain tumor in adult, characterized by highly aggressive and infiltrative growth. The current therapeutic management of GBM includes surgical resection followed by ionizing radiations and chemotherapy. Complex and dynamic interplay between tumor cells and tumor microenvironment drives the progression and contributes to therapeutic resistance. Extracellular vesicles (EVs) play a crucial role in the intercellular communication by delivering bioactive molecules in the surrounding milieu modulating tumor microenvironment. METHODS In this study, we isolated by ultracentrifugation EVs from GBM stem-like cell (GSC) lines and human microvascular endothelial cells (HMVECs) exposed or not to ionizing irradiation. After counting and characterization, we evaluated the effects of exposure of GSCs to EVs isolated from endothelial cells and vice versa. The RNA content of EVs isolated from GSC lines and HMVECs exposed or not to ionizing irradiation, was analyzed by RNA-Seq. Periostin (POSTN) and Filamin-B (FLNB) emerged in gene set enrichment analysis as the most interesting transcripts enriched after irradiation in endothelial cell-derived EVs and GSC-derived EVs, respectively. POSTN and FLNB expression was modulated and the effects were analyzed by in vitro assays. RESULTS We confirmed that ionizing radiations increased EV secretion by GSCs and normal endothelial cells, affected the contents of and response to cellular secreted EVs. Particularly, GSC-derived EVs decreased radiation-induced senescence and promoted migration in HMVECs whereas, endothelial cell-derived EVs promoted tumorigenic properties and endothelial differentiation of GSCs. RNA-Seq analysis of EV content, identified FLNB and POSTN as transcripts enriched in EVs isolated after irradiation from GSCs and HMVECs, respectively. Assays performed on POSTN overexpressing GSCs confirmed the ability of POSTN to mimic the effects of endothelial cell-derived EVs on GSC migration and clonogenic abilities and transdifferentiation potential. Functional assays performed on HMVECs after silencing of FLNB supported its role as mediator of the effects of GSC-derived EVs on senescence and migration. CONCLUSION In this study, we identified POSTN and FLNB as potential mediators of the effects of EVs on GSC and HMVEC behavior confirming that EVs play a crucial role in the intercellular communication by delivering bioactive molecules in the surrounding milieu modulating tumor microenvironment.
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Affiliation(s)
- Giorgia Castellani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Mariachiara Buccarelli
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Quintino Giorgio D'Alessandris
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Institutes of Neurosurgery, Catholic University School of Medicine, Rome, Italy
| | - Ramona Ilari
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | | | - Francesca Pedini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Alessandra Boe
- Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Valentina Lulli
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Isabella Parolini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
- Department of Medicine, University of Udine, Udine, Italy
| | - Stefano Giannetti
- Institute of Human Anatomy, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Mauro Biffoni
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Vincenzo Zappavigna
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanna Marziali
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Roberto Pallini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Lucia Ricci-Vitiani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
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4
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Barreca V, Boussadia Z, Polignano D, Galli L, Tirelli V, Sanchez M, Falchi M, Bertuccini L, Iosi F, Tatti M, Sargiacomo M, Fiani ML. Metabolic labelling of a subpopulation of small extracellular vesicles using a fluorescent palmitic acid analogue. J Extracell Vesicles 2023; 12:e12392. [PMID: 38072803 PMCID: PMC10710952 DOI: 10.1002/jev2.12392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Exosomes are among the most puzzling vehicles of intercellular communication, but several crucial aspects of their biogenesis remain elusive, primarily due to the difficulty in purifying vesicles with similar sizes and densities. Here we report an effective methodology for labelling small extracellular vesicles (sEV) using Bodipy FL C16, a fluorescent palmitic acid analogue. In this study, we present compelling evidence that the fluorescent sEV population derived from Bodipy C16-labelled cells represents a discrete subpopulation of small exosomes following an intracellular pathway. Rapid cellular uptake and metabolism of Bodipy C16 resulted in the incorporation of fluorescent phospholipids into intracellular organelles specifically excluding the plasma membrane and ultimately becoming part of the exosomal membrane. Importantly, our fluorescence labelling method facilitated accurate quantification and characterization of exosomes, overcoming the limitations of nonspecific dye incorporation into heterogeneous vesicle populations. The characterization of Bodipy-labelled exosomes reveals their enrichment in tetraspanin markers, particularly CD63 and CD81, and in minor proportion CD9. Moreover, we employed nanoFACS sorting and electron microscopy to confirm the exosomal nature of Bodipy-labelled vesicles. This innovative metabolic labelling approach, based on the fate of a fatty acid, offers new avenues for investigating exosome biogenesis and functional properties in various physiological and pathological contexts.
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Affiliation(s)
- Valeria Barreca
- National Center for Global HealthIstituto Superiore di SanitàRomeItaly
| | | | - Deborah Polignano
- National Center for Global HealthIstituto Superiore di SanitàRomeItaly
| | - Lorenzo Galli
- National Center for Global HealthIstituto Superiore di SanitàRomeItaly
| | | | | | - Mario Falchi
- National AIDS CenterIstituto Superiore di SanitàRomeItaly
| | | | | | - Massimo Tatti
- Department of Oncology and Molecular MedicineIstituto Superiore di SanitàRomeItaly
| | | | - Maria Luisa Fiani
- National Center for Global HealthIstituto Superiore di SanitàRomeItaly
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5
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Peruzzu D, Boussadia Z, Fratini F, Spadaro F, Bertuccini L, Sanchez M, Carollo M, Matarrese P, Falchi M, Iosi F, Raggi C, Parolini I, Carè A, Sargiacomo M, Gagliardi MC, Fecchi K. Inhibition of cholesterol transport impairs Cav-1 trafficking and small extracellular vesicles secretion, promoting amphisome formation in melanoma cells. Traffic 2023; 24:76-94. [PMID: 36519961 DOI: 10.1111/tra.12878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/22/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
Caveolin-1 (Cav-1) is a fundamental constituent of caveolae, whose functionality and structure are strictly dependent on cholesterol. In this work the U18666A inhibitor was used to study the role of cholesterol transport in the endosomal degradative-secretory system in a metastatic human melanoma cell line (WM266-4). We found that U18666A induces a shift of Cav-1 from the plasma membrane to the endolysosomal compartment, which is involved, through Multi Vesicular Bodies (MVBs), in the formation and release of small extracellular vesicles (sEVs). Moreover, this inhibitor induces an increase in the production of sEVs with chemical-physical characteristics similar to control sEVs but with a different protein composition (lower expression of Cav-1 and increase of LC3II) and reduced transfer capacity on target cells. Furthermore, we determined that U18666A affects mitochondrial function and also cancer cell aggressive features, such as migration and invasion. Taken together, these results indicate that the blockage of cholesterol transport, determining the internalization of Cav-1, may modify sEVs secretory pathways through an increased fusion between autophagosomes and MVBs to form amphisome, which in turn fuses with the plasma membrane releasing a heterogeneous population of sEVs to maintain homeostasis and ensure correct cellular functionality.
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Affiliation(s)
- Daniela Peruzzu
- Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Zaira Boussadia
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Fratini
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Francesca Spadaro
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Lucia Bertuccini
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Sanchez
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Maria Carollo
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Paola Matarrese
- Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Mario Falchi
- National Center for HIV/AIDS Research, Istituto Superiore di Sanità, Rome
| | - Francesca Iosi
- Core Facilities Technical Scientific Service, Istituto Superiore di Sanità, Rome, Italy
| | - Carla Raggi
- National Center for the control and evaluation of Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Isabella Parolini
- Department Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Alessandra Carè
- Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Sargiacomo
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | | | - Katia Fecchi
- Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
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6
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Ferrantelli F, Tirelli V, Barreca V, Manfredi F. Generation, Characterization, and Count of Fluorescent Extracellular Vesicles. Methods Mol Biol 2022; 2504:207-217. [PMID: 35467289 DOI: 10.1007/978-1-0716-2341-1_15] [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] [Indexed: 06/14/2023]
Abstract
Extracellular vesicles (EVs) are membranous particles released by all cells in the external milieu. Depending on their origin, they are given different names: exosomes are nanovesicles that originate from the endosomal compartment, whereas microvesicles bud from plasma membrane. Both contain molecules that are crucial for the onset and spreading of different pathologies, from neurodegenerative diseases to cancer, and are considered promising disease markers. On the other hand, EVs are often used as therapeutic tools, and can be engineered to carry drugs and chemicals. This chapter describes a method to produce EVs, mainly exosomes, containing the green fluorescent protein (GFP) linked to an exosome anchoring protein (Nefmut). This enables counting and tracing of fluorescent EVs by different methods, including conventional flow cytometry.
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Affiliation(s)
- Flavia Ferrantelli
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | | | - Valeria Barreca
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Francesco Manfredi
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy.
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7
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HIV-1 Nef Protein Affects Cytokine and Extracellular Vesicles Production in the GEN2.2 Plasmacytoid Dendritic Cell Line. Viruses 2021; 14:v14010074. [PMID: 35062278 PMCID: PMC8780779 DOI: 10.3390/v14010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are a unique dendritic cell subset specialized in type I interferon production, whose role in Human Immunodeficiency Virus (HIV) infection and pathogenesis is complex and not yet well defined. Considering the crucial role of the accessory protein Nef in HIV pathogenicity, possible alterations in intracellular signalling and extracellular vesicle (EV) release induced by exogenous Nef on uninfected pDCs have been investigated. As an experimental model system, a human plasmacytoid dendritic cell line, GEN2.2, stimulated with a myristoylated recombinant NefSF2 protein was employed. In GEN2.2 cells, Nef treatment induced the tyrosine phosphorylation of STAT-1 and STAT-2 and the production of a set of cytokines, chemokines and growth factors including IP-10, MIP-1β, MCP-1, IL-8, TNF-α and G-CSF. The released factors differed both in type and amount from those released by macrophages treated with the same viral protein. Moreover, Nef treatment slightly reduces the production of small EVs, and the protein was found associated with the small (size < 200 nm) but not the medium/large vesicles (size > 200 nm) collected from GEN2.2 cells. These results add new information on the interactions between this virulence factor and uninfected pDCs, and may provide the basis for further studies on the interactions of Nef protein with primary pDCs.
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8
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Cheng YC, Chang YA, Chen YJ, Sung HM, Bogeski I, Su HL, Hsu YL, Wang HMD. The Roles of Extracellular Vesicles in Malignant Melanoma. Cells 2021; 10:2740. [PMID: 34685720 PMCID: PMC8535053 DOI: 10.3390/cells10102740] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/13/2021] [Accepted: 09/22/2021] [Indexed: 12/21/2022] Open
Abstract
Different types of cells, such as endothelial cells, tumor-associated fibroblasts, pericytes, and immune cells, release extracellular vesicles (EVs) in the tumor microenvironment. The components of EVs include proteins, DNA, RNA, and microRNA. One of the most important functions of EVs is the transfer of aforementioned bioactive molecules, which in cancer cells may affect tumor growth, progression, angiogenesis, and metastatic spread. Furthermore, EVs affect the presentation of antigens to immune cells via the transfer of nucleic acids, peptides, and proteins to recipient cells. Recent studies have also explored the potential application of EVs in cancer treatment. This review summarizes the mechanisms by which EVs regulate melanoma development, progression, and their potentials to be applied in therapy. We initially describe vesicle components; discuss their effects on proliferation, anti-melanoma immunity, and drug resistance; and finally focus on the effects of EV-derived microRNAs on melanoma pathobiology. This work aims to facilitate our understanding of the influence of EVs on melanoma biology and initiate ideas for the development of novel therapeutic strategies.
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Affiliation(s)
- Ying-Chen Cheng
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (Y.-C.C.); (Y.-A.C.)
| | - Yu-An Chang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (Y.-C.C.); (Y.-A.C.)
| | - Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-J.C.); (Y.-L.H.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Physical Medicine and Rehabilitation, Kaohsiung Municipal Siaogang Hospital, Kaohsiung 807, Taiwan
- Department of Physical Medicine and Rehabilitation, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Hsu-Min Sung
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, 37073 Göttingen, Germany; (H.-M.S.); (I.B.)
| | - Ivan Bogeski
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg August University, 37073 Göttingen, Germany; (H.-M.S.); (I.B.)
| | - Hong-Lin Su
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan;
| | - Ya-Ling Hsu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-J.C.); (Y.-L.H.)
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (Y.-C.C.); (Y.-A.C.)
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung City 404, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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9
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Mangiapane G, Parolini I, Conte K, Malfatti MC, Corsi J, Sanchez M, Pietrantoni A, D'Agostino VG, Tell G. Enzymatically active apurinic/apyrimidinic endodeoxyribonuclease 1 is released by mammalian cells through exosomes. J Biol Chem 2021; 296:100569. [PMID: 33753167 PMCID: PMC8080531 DOI: 10.1016/j.jbc.2021.100569] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/11/2021] [Accepted: 03/18/2021] [Indexed: 12/11/2022] Open
Abstract
The apurinic/apyrimidinic endodeoxyribonuclease 1 (APE1), the main AP-endonuclease of the DNA base excision repair pathway, is a key molecule of interest to researchers due to its unsuspected roles in different nonrepair activities, such as: i) adaptive cell response to genotoxic stress, ii) regulation of gene expression, and iii) processing of microRNAs, which make it an excellent drug target for cancer treatment. We and others recently demonstrated that APE1 can be secreted in the extracellular environment and that serum APE1 may represent a novel prognostic biomarker in hepatocellular and non-small-cell lung cancers. However, the mechanism by which APE1 is released extracellularly was not described before. Here, using three different approaches for exosomes isolation: commercial kit, nickel-based isolation, and ultracentrifugation methods and various mammalian cell lines, we elucidated the mechanisms responsible for APE1 secretion. We demonstrated that APE1 p37 and p33 forms are actively secreted through extracellular vesicles (EVs), including exosomes from different mammalian cell lines. We then observed that APE1 p33 form is generated by proteasomal-mediated degradation and is enzymatically active in EVs. Finally, we revealed that the p33 form of APE1 accumulates in EVs upon genotoxic treatment by cisplatin and doxorubicin, compounds commonly found in chemotherapy pharmacological treatments. Taken together, these findings provide for the first time evidence that a functional Base Excision Repair protein is delivered through exosomes in response to genotoxic stresses, shedding new light into the complex noncanonical biological functions of APE1 and opening new intriguing perspectives on its role in cancer biology.
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Affiliation(s)
- Giovanna Mangiapane
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Isabella Parolini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Kristel Conte
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Matilde Clarissa Malfatti
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy
| | - Jessica Corsi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | | | | | - Vito G D'Agostino
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Gianluca Tell
- Laboratory of Molecular Biology and DNA repair, Department of Medicine (DAME), University of Udine, Udine, Italy.
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10
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Zhou X, Li Z, Sun W, Yang G, Xing C, Yuan L. Delivery Efficacy Differences of Intravenous and Intraperitoneal Injection of Exosomes: Perspectives from Tracking Dye Labeled and MiRNA Encapsulated Exosomes. Curr Drug Deliv 2021; 17:186-194. [PMID: 31969102 DOI: 10.2174/1567201817666200122163251] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/16/2019] [Accepted: 12/31/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Exosomes are cell-derived nanovesicles that play vital roles in intercellular communication. Recently, exosomes are recognized as promising drug delivery vehicles. Up till now, how the in vivo distribution of exosomes is affected by different administration routes has not been fully understood. METHODS In the present study, in vivo distribution of exosomes following intravenous and intraperitoneal injection approaches was systemically analyzed by tracking the fluorescence-labeled exosomes and qPCR analysis of C. elegans specific miRNA abundance delivered by exosomes in different organs. RESULTS The results showed that exosomes administered through tail vein were mostly taken up by the liver, spleen and lungs while exosomes injected intraperitoneally were more dispersedly distributed. Besides the liver, spleen, and lungs, intraperitoneal injection effectively delivered exosomes into the visceral adipose tissue, making it a promising strategy for obesity therapy. Moreover, the results from fluorescence tracking and qPCR were slightly different, which could be explained by systemic errors. CONCLUSION Together, our study reveals that different administration routes cause a significant differential in vivo distribution of exosomes, suggesting that optimization of the delivery route is prerequisite to obtain rational delivery efficiency in detailed organs.
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Affiliation(s)
- Xueying Zhou
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of Biochemistry and Molecular Biology, The State Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Zhelong Li
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of Biochemistry and Molecular Biology, The State Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Wenqi Sun
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of Biochemistry and Molecular Biology, The State Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Guodong Yang
- Department of Biochemistry and Molecular Biology, The State Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Changyang Xing
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Lijun Yuan
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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11
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Fiani ML, Barreca V, Sargiacomo M, Ferrantelli F, Manfredi F, Federico M. Exploiting Manipulated Small Extracellular Vesicles to Subvert Immunosuppression at the Tumor Microenvironment through Mannose Receptor/CD206 Targeting. Int J Mol Sci 2020; 21:ijms21176318. [PMID: 32878276 PMCID: PMC7503580 DOI: 10.3390/ijms21176318] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/17/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023] Open
Abstract
Immunosuppression at tumor microenvironment (TME) is one of the major obstacles to be overcome for an effective therapeutic intervention against solid tumors. Tumor-associated macrophages (TAMs) comprise a sub-population that plays multiple pro-tumoral roles in tumor development including general immunosuppression, which can be identified in terms of high expression of mannose receptor (MR or CD206). Immunosuppressive TAMs, like other macrophage sub-populations, display functional plasticity that allows them to be re-programmed to inflammatory macrophages. In order to mitigate immunosuppression at the TME, several efforts are ongoing to effectively re-educate pro-tumoral TAMs. Extracellular vesicles (EVs), released by both normal and tumor cells types, are emerging as key mediators of the cell to cell communication and have been shown to have a role in the modulation of immune responses in the TME. Recent studies demonstrated the enrichment of high mannose glycans on the surface of small EVs (sEVs), a subtype of EVs of endosomal origin of 30–150 nm in diameter. This characteristic renders sEVs an ideal tool for the delivery of therapeutic molecules into MR/CD206-expressing TAMs. In this review, we report the most recent literature data highlighting the critical role of TAMs in tumor development, as well as the experimental evidences that has emerged from the biochemical characterization of sEV membranes. In addition, we propose an original way to target immunosuppressive TAMs at the TME by endogenously engineered sEVs for a new therapeutic approach against solid tumors.
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Affiliation(s)
- Maria Luisa Fiani
- Correspondence: (M.L.F.); (M.F.); Tel.: +39-06-4990-2518 (M.L.F.); +39-06-4990-6016 (M.F.)
| | | | | | | | | | - Maurizio Federico
- Correspondence: (M.L.F.); (M.F.); Tel.: +39-06-4990-2518 (M.L.F.); +39-06-4990-6016 (M.F.)
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12
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Abstract
As a nanoscale subset of extracellular vehicles, exosomes represent a new pathway of intercellular communication by delivering cargos such as proteins and nucleic acids to recipient cells. Importantly, it has been well documented that exosome-mediated delivery of such cargo is involved in many pathological processes such as tumor progression, cancer metastasis, and development of drug resistance. Innately biocompatible and possessing ideal structural properties, exosomes offer distinct advantages for drug delivery over artificial nanoscale drug carriers. In this review, we summarize recent progress in methods for engineering exosomes including isolation techniques and exogenous cargo encapsulation, with a focus on applications of engineered exosomes to target cancer metastasis.
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Affiliation(s)
- Zhenjiang Zhang
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37212 USA
| | - Jenna A. Dombroski
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37212 USA
| | - Michael R. King
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37212 USA
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13
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Exosomes from CD99-deprived Ewing sarcoma cells reverse tumor malignancy by inhibiting cell migration and promoting neural differentiation. Cell Death Dis 2019; 10:471. [PMID: 31209202 PMCID: PMC6572819 DOI: 10.1038/s41419-019-1675-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/18/2019] [Accepted: 05/13/2019] [Indexed: 02/07/2023]
Abstract
Ewing sarcoma (EWS) is an aggressive mesenchymal tumor with unmet clinical need and significant social impacts on children, adolescents, and young adults. CD99, a hallmark surface molecule of EWS, participates in crucial biological processes including cell migration, differentiation, and death. EWS cells can release CD99 through exosomes (EXOs), specialized extracellular vesicles with major cell communication roles. Here we show that, as a consequence of CD99 silencing, EWS cells deliver exosomes with oncosuppressive functions that significantly reduce tumor aggressiveness. These CD99-lacking microvesicles modulate gene expression of the EWS-recipient cells, reduce proliferation and migration, in turn inducing a more-differentiated less-malignant phenotype. The most relevant effects were detected on the activator protein-1 signaling pathway whose regulation was found to be dependent on the specific cargo loaded in vesicles after CD99 shutdown. Investigation of the miRNA content of CD99-deprived EXOs identified miR-199a-3p as a key driver able to reverse EWS malignancy in experimental models as well as in clinical specimens. All together, our data provide evidence that the abrogation of CD99 in EWS tumor cells leads to produce and release EXOs capable to transfer their antineoplastic effects into the nearby tumor cells, suggesting a novel atypical role for these microvesicles in reversion of malignancy rather than in priming the soil for progression and metastatic seeding. This conceptually innovative approach might offer a new therapeutic opportunity to treat a tumor still refractory to most treatments.
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14
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Boussadia Z, Lamberti J, Mattei F, Pizzi E, Puglisi R, Zanetti C, Pasquini L, Fratini F, Fantozzi L, Felicetti F, Fecchi K, Raggi C, Sanchez M, D'Atri S, Carè A, Sargiacomo M, Parolini I. Acidic microenvironment plays a key role in human melanoma progression through a sustained exosome mediated transfer of clinically relevant metastatic molecules. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:245. [PMID: 30290833 PMCID: PMC6173926 DOI: 10.1186/s13046-018-0915-z] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/24/2018] [Indexed: 12/21/2022]
Abstract
Background Microenvironment cues involved in melanoma progression are largely unknown. Melanoma is highly influenced in its aggressive phenotype by the changes it determinates in its microenvironment, such as pH decrease, in turn influencing cancer cell invasiveness, progression and tissue remodelling through an abundant secretion of exosomes, dictating cancer strategy to the whole host. A role of exosomes in driving melanoma progression under microenvironmental acidity was never described. Methods We studied four differently staged human melanoma lines, reflecting melanoma progression, under microenvironmental acidic pHs pressure ranging between pH 6.0–6.7. To estimate exosome secretion as a function of tumor stage and environmental pH, we applied a technique to generate native fluorescent exosomes characterized by vesicles integrity, size, density, markers expression, and quantifiable by direct FACS analysis. Functional roles of exosomes were tested in migration and invasion tests. Then we performed a comparative proteomic analysis of acid versus control exosomes to elucidate a specific signature involved in melanoma progression. Results We found that metastatic melanoma secretes a higher exosome amount than primary melanoma, and that acidic pH increases exosome secretion when melanoma is in an intermediate stage, i.e. metastatic non-invasive. We were thus able to show that acidic pH influences the intercellular cross-talk mediated by exosomes. In fact when exposed to exosomes produced in an acidic medium, pH naïve melanoma cells acquire migratory and invasive capacities likely due to transfer of metastatic exosomal proteins, favoring cell motility and angiogenesis. A Prognoscan-based meta-analysis study of proteins enriched in acidic exosomes, identified 11 genes (HRAS, GANAB, CFL2, HSP90B1, HSP90AB1, GSN, HSPA1L, NRAS, HSPA5, TIMP3, HYOU1), significantly correlating with poor prognosis, whose high expression was in part confirmed in bioptic samples of lymph node metastases. Conclusions A crucial step of melanoma progression does occur at melanoma intermediate –stage, when extracellular acidic pH induces an abundant release and intra-tumoral uptake of exosomes. Such exosomes are endowed with pro-invasive molecules of clinical relevance, which may provide a signature of melanoma advancement. Electronic supplementary material The online version of this article (10.1186/s13046-018-0915-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zaira Boussadia
- Global Health Center, Istituto Superiore di Sanità, Rome, Italy
| | - Jessica Lamberti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Fabrizio Mattei
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Elisabetta Pizzi
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Rossella Puglisi
- Center for Gender- specific Medicine, Istituto Superiore di Sanità, Istituto Superiore di Sanità, Rome, Italy
| | - Cristiana Zanetti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Luca Pasquini
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Fratini
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Luca Fantozzi
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Felicetti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Katia Fecchi
- Global Health Center, Istituto Superiore di Sanità, Rome, Italy
| | - Carla Raggi
- National Center for the Control and Evaluation of Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Sanchez
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Stefania D'Atri
- Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata- IRCCS, Rome, Italy
| | - Alessandra Carè
- Center for Gender- specific Medicine, Istituto Superiore di Sanità, Istituto Superiore di Sanità, Rome, Italy
| | | | - Isabella Parolini
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy.
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15
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Zheng H, Zhan Y, Liu S, Lu J, Luo J, Feng J, Fan S. The roles of tumor-derived exosomes in non-small cell lung cancer and their clinical implications. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:226. [PMID: 30217217 PMCID: PMC6137883 DOI: 10.1186/s13046-018-0901-5] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023]
Abstract
Non-small cell lung cancer (NSCLC) accounts for approximately 85% of lung cancer cases, and it is one of the leading causes of cancer death in both men and women worldwide due to diagnosis in the advanced stage, rapid metastasis, and recurrence. At present, precision molecular targeted therapeutics directed toward NSCLC driven genes has made great progress and significantly improved the overall survival of patients with NSCLC, but can easily lead to acquired drug resistance. New methods are needed to develop real-time monitoring of drug efficacy and drug resistance, such as new molecular markers for more effective early detection and prediction of prognosis. Exosomes are nano-sized extracellular vesicles, containing proteins, nucleic acids and lipids, which are secreted by various cells, and they play an important role in the development of lung cancer by controlling a wide range of pathways. Tumor-derived exosomes are of great significance for guiding the targeted therapy of NSCLC and exosomes themselves can be a target for treatment. In this review, we describe the potential roles of tumor-derived exosomes and their clinical significance in NSCLC.
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Affiliation(s)
- Hongmei Zheng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Yuting Zhan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Sile Liu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Junmi Lu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Jiadi Luo
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Juan Feng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Songqing Fan
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.
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16
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Abstract
Exosomes are secreted extracellular vesicles (EVs) that carry micro RNAs and other factors to reprogram cancer cells and tissues affected by cancer. Exosomes are exchanged between cancer cells and other tissues, often to prepare a premetastatic niche, escape immune surveillance, or spread multidrug resistance. Only a few studies investigated the function of lipids in exosomes although their lipid composition is different from that of the secreting cells. Ceramide is one of the lipids critical for exosome formation, and it is also enriched in these EVs. New research suggests that lipids in the exosomal membrane may organize and transmit "mobile rafts" that turn exosomes into extracellular signalosomes spreading activation of cell signaling pathways in oncogenesis and metastasis. Ceramide may modulate the function of mobile rafts and their effect on these cell signaling pathways. The critical role of lipids and, in particular, ceramide for formation, secretion, and function of exosomes may lead to a radically new understanding of cancer biology and therapy.
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Affiliation(s)
- Ahmed Elsherbini
- Department of Physiology, University of Kentucky, Lexington, KY, United States
| | - Erhard Bieberich
- Department of Physiology, University of Kentucky, Lexington, KY, United States
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17
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Zanetti C, Gallina A, Fabbri A, Parisi S, Palermo A, Fecchi K, Boussadia Z, Carollo M, Falchi M, Pasquini L, Fiani ML, Sargiacomo M. Cell Propagation of Cholera Toxin CTA ADP-Ribosylating Factor by Exosome Mediated Transfer. Int J Mol Sci 2018; 19:E1521. [PMID: 29783743 PMCID: PMC5983816 DOI: 10.3390/ijms19051521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 12/15/2022] Open
Abstract
In this study, we report how the cholera toxin (CT) A subunit (CTA), the enzyme moiety responsible for signaling alteration in host cells, enters the exosomal pathway, secretes extracellularly, transmits itself to a cell population. The first evidence for long-term transmission of CT's toxic effect via extracellular vesicles was obtained in Chinese hamster ovary (CHO) cells. To follow the CT intracellular route towards exosome secretion, we used a novel strategy for generating metabolically-labeled fluorescent exosomes that can be counted by flow cytometry assay (FACS) and characterized. Our results clearly show the association of CT with exosomes, together with the heat shock protein 90 (HSP90) and Protein Disulfide Isomerase (PDI) molecules, proteins required for translocation of CTA across the ER membrane into the cytoplasm. Confocal microscopy showed direct internalization of CT containing fluorescent exo into CHO cells coupled with morphological changes in the recipient cells that are characteristic of CT action. Moreover, Me665 cells treated with CT-containing exosomes showed an increase in Adenosine 3',5'-Cyclic Monophosphate (cAMP) level, reaching levels comparable to those seen in cells exposed directly to CT. Our results prompt the idea that CT can exploit an exosome-mediated cell communication pathway to extend its pathophysiological action beyond an initial host cell, into a multitude of cells. This finding could have implications for cholera disease pathogenesis and epidemiology.
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Affiliation(s)
- Cristiana Zanetti
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Angelo Gallina
- Department of Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Alessia Fabbri
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Sofia Parisi
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Angela Palermo
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Katia Fecchi
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Zaira Boussadia
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Maria Carollo
- Core Facilities⁻Cytometry Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Mario Falchi
- National AIDS Center, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Luca Pasquini
- Core Facilities⁻Cytometry Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Maria Luisa Fiani
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Massimo Sargiacomo
- National Center for Global Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
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18
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Castelli G, Parolini I, Cerio AM, D'Angiò A, Pasquini L, Carollo M, Sargiacomo M, Testa U, Pelosi E. Conditioned medium from human umbilical vein endothelial cells markedly improves the proliferation and differentiation of circulating endothelial progenitors. Blood Cells Mol Dis 2016; 61:58-65. [PMID: 27667168 DOI: 10.1016/j.bcmd.2016.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 07/15/2016] [Indexed: 01/01/2023]
Abstract
Circulating endothelial progenitor cells (EPCs) have been suggested as a precious source for generating functionally competent endothelial cells (ECs), candidate for various clinical applications. However, the paucity of these progenitor cells and the technical difficulties for their in vitro growth represent a main limitation to their use. In the present study we hypothesized that the paracrine effects of human umbilical vein endothelial cells (HUVECs) may improve endothelial cell generation from cord blood (CB) EPCs. In line with this hypothesis we showed that HUVEC conditioned medium (CM) or co-culture with HUVECs markedly improved the proliferation and differentiation and delayed the senescence of CB EPCs. The endothelial-promoting effect of CM seems to be related to smaller vesicles including exosomes (sEV/exo) contained in this medium and transferred to CB CD34(+) EPCs: in fact, purified preparations of sEV/exo isolated from CM mimicked the effect of CM to sustain endothelial formation. These observations provided the interesting indication that mature ECs exert a stimulatory effect on endothelial cell differentiation from CD34(+) cells.
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Affiliation(s)
- Germana Castelli
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Isabella Parolini
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Anna Maria Cerio
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Agnese D'Angiò
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Luca Pasquini
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Maria Carollo
- Department of Infectious, Parasitic and Immune-mediates Diseases, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Massimo Sargiacomo
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
| | - Ugo Testa
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy.
| | - Elvira Pelosi
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena 200, 00161 Rome, Italy
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