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Ghetti M, Vannini I, Bochicchio MT, Azzali I, Ledda L, Marconi G, Melloni M, Fabbri F, Rondoni M, Chicchi R, Angeli D, Ghelli Luserna di Rorà A, Giannini B, Zacheo I, Biguzzi R, Lanza F, Martinelli G, Simonetti G. Uncovering the expression of circPVT1 in the extracellular vesicles of acute myeloid leukemia patients. Biomed Pharmacother 2023; 165:115235. [PMID: 37536029 DOI: 10.1016/j.biopha.2023.115235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/19/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023] Open
Abstract
Extracellular vesicles (EVs) act as molecular mediators in the tumor microenvironment, by shuttling information contained within malignant cells and functioning as regulators of the immune system. Circular (circ)RNAs are characterized by a closed loop-like structure that makes them more stable in the extracellular milieu and suitable to be packaged inside EVs. circPVT1 (hsa_circ_0001821) showed an oncogenic role in several cancer types and immunosuppressive properties in myeloid and lymphoid cell subsets. In this study, we characterized EVs from acute myeloid leukemia (AML) patients in terms of size, concentrations, surface markers and circPVT1 cargo. We showed that circPVT1 is overexpressed by primary blast cells from newly-diagnosed AML patients compared with hematopoietic stem-progenitor cells and is released as cell-free RNA in the plasma. We isolated EVs from the plasma of AML patients and healthy subjects by size exclusion chromatography and characterized them by nanoparticle tracking analysis. EVs from patients' plasma are larger compared with those from healthy subjects and their surface profile is characterized by higher levels of the leukemic cell markers CD133, CD105, CD49e and other immune-related epitopes, with differences according to AML molecular profile. Moreover, digital PCR analysis revealed that circPVT1 is more abundant inside EVs from the plasma of AML patients compared with healthy subjects. Our findings provide new insights on the features and content of AML EVs and suggest a role of circPVT1 in the crosstalk between AML cells and the tumor microenvironment.
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Affiliation(s)
- Martina Ghetti
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Ivan Vannini
- Pathology Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, Forlì, Italy
| | - Maria Teresa Bochicchio
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Irene Azzali
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Lorenzo Ledda
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Giovanni Marconi
- Hematology Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Mattia Melloni
- Laboratory of Biomarkers, Biomolecular Targets and Personalized Medicine in Oncology, Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Michela Rondoni
- Hematology Unit & Romagna Transplant Network, Ravenna Hospital, Ravenna, Italy
| | - Roberta Chicchi
- Laboratorio Unico AUSL della Romagna, U.O. Medicina Trasfusionale di Forlì-Cesena e Officina Trasfusionale della Romagna, Pievesestina di Cesena, Italy
| | - Davide Angeli
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Andrea Ghelli Luserna di Rorà
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy; Fondazione Pisana per la Scienza ONLUS, San Giuliano Terme, Italy
| | - Barbara Giannini
- Laboratorio Unico AUSL della Romagna, U.O. Genetica Medica, Pievesestina di Cesena, Italy
| | - Irene Zacheo
- Hematology Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Rino Biguzzi
- Laboratorio Unico AUSL della Romagna, U.O. Medicina Trasfusionale di Forlì-Cesena e Officina Trasfusionale della Romagna, Pievesestina di Cesena, Italy
| | - Francesco Lanza
- Hematology Unit & Romagna Transplant Network, Ravenna Hospital, Ravenna, Italy
| | - Giovanni Martinelli
- Scientific Directorate, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Giorgia Simonetti
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy.
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Vannini I, Rossi T, Melloni M, Valgiusti M, Urbini M, Passardi A, Bartolini G, Gallio C, Azzali I, Bandini S, Ancarani V, Montanaro L, Frassineti GL, Fabbri F, Rapposelli IG. Analysis of EVs from patients with advanced pancreatic cancer identifies antigens and miRNAs with predictive value. Mol Ther Methods Clin Dev 2023; 29:473-482. [PMID: 37273899 PMCID: PMC10238807 DOI: 10.1016/j.omtm.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/09/2023] [Indexed: 06/06/2023]
Abstract
The identification of predictive factors for treatment of pancreatic cancer (PC) is an unmet clinical need. In the present work, we analyzed blood-derived extracellular vesicles (EVs) from patients with advanced PC in order to find a molecular signature predictive of response to therapy. We analyzed samples from 21 patients with advanced PC, all receiving first-line treatment with gemcitabine + nab-paclitaxel. Isolated EVs have been analyzed, and the results of laboratory have been matched with clinical data in order to investigate possible predictive factors. EV concentration and size were similar between responder and non-responder patients. Analysis of 37 EV surface epitopes showed a decreased expression of SSEA4 and CD81 in responder patients. We detected more than 450 expressed miRNAs in EVs. A comparative survey between responder and non-responder patients showed that at least 44 miRNAs were differently expressed. Some of these miRNAs have already been observed in relation to the survival and gemcitabine sensitivity of tumor cells. In conclusion, we showed the ability of our approach to identify EV-derived biomarkers with predictive value for therapy response in PC. Our findings are worthy of further investigation, including the analysis of samples from patients treated with different schedules and in different settings.
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Affiliation(s)
- Ivan Vannini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Tania Rossi
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Mattia Melloni
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Martina Valgiusti
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Milena Urbini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Alessandro Passardi
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Giulia Bartolini
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Chiara Gallio
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Irene Azzali
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Sara Bandini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Valentina Ancarani
- Immunotherapy-Cell Therapy and Biobank Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Lorenzo Montanaro
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum - University of Bologna, Bologna, Italy
- Departmental Program in Laboratory Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Giovanni Luca Frassineti
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Ilario Giovanni Rapposelli
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
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Melloni M, Sergi D, Simioni C, Passaro A, Neri LM. Microalgae as a Nutraceutical Tool to Antagonize the Impairment of Redox Status Induced by SNPs: Implications on Insulin Resistance. Biology 2023; 12:biology12030449. [PMID: 36979141 PMCID: PMC10044993 DOI: 10.3390/biology12030449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Microalgae represent a growing innovative source of nutraceuticals such as carotenoids and phenolic compound which are naturally present within these single-celled organisms or can be induced in response to specific growth conditions. The presence of the unfavourable allelic variant in genes involved in the control of oxidative stress, due to one or more SNPs in gene encoding protein involved in the regulation of redox balance, can lead to pathological conditions such as insulin resistance, which, in turn, is directly involved in the pathogenesis of type 2 diabetes mellitus. In this review we provide an overview of the main SNPs in antioxidant genes involved in the promotion of insulin resistance with a focus on the potential role of microalgae-derived antioxidant molecules as novel nutritional tools to mitigate oxidative stress and improve insulin sensitivity.
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Affiliation(s)
- Mattia Melloni
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
| | - Domenico Sergi
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
| | - Carolina Simioni
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 70, 44121 Ferrara, Italy;
- Laboratory for Technologies of Advanced Therapies (LTTA)—Electron Microscopy Center, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
| | - Angelina Passaro
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
- Medical Department, University Hospital of Ferrara Arcispedale Sant’Anna, Via Aldo Moro 8, 44124 Ferrara, Italy
- Research and Innovation Section, University Hospital of Ferrara Arcispedale Sant’Anna, Via Aldo Moro 8, 44124 Ferrara, Italy
- Correspondence: (A.P.); (L.M.N.); Tel.: +39-0532-236291 (A.P.); +39-0532-455940 (L.M.N.)
| | - Luca Maria Neri
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
- Laboratory for Technologies of Advanced Therapies (LTTA)—Electron Microscopy Center, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
- Correspondence: (A.P.); (L.M.N.); Tel.: +39-0532-236291 (A.P.); +39-0532-455940 (L.M.N.)
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Plousiou M, De Vita A, Miserocchi G, Bandini E, Vannini I, Melloni M, Masalu N, Fabbri F, Serra P. Growth Inhibition of Retinoblastoma Cell Line by Exosome-Mediated Transfer of miR-142-3p. Cancer Manag Res 2022; 14:2119-2131. [PMID: 35791342 PMCID: PMC9250773 DOI: 10.2147/cmar.s351979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 06/09/2022] [Indexed: 01/06/2023] Open
Abstract
Introduction Retinoblastoma (Rb) is the most common ocular paediatric malignancy and is caused by a mutation of the two alleles of the tumor suppressor gene, RB1. The tumor microenvironment (TME) represents a complex system whose function is not yet well defined and where microvesicles, such as exosomes, play a key role in intercellular communication. Micro-RNAs (mRNAs) have emerged as important modifiers of biological mechanisms involved in cancer and been able to regulate tumor progression. Methods Co-culture of monocytes with retinoblastoma cell lines, showed a significant growth decrease. Given the interaction between Rb cells and monocytes, we investigated the role of the supernatant in the cross-talk between cell lines, by taking the product of the co-culture and then using it as a culture medium for Rb cells. Results miR-142-3p showed to be particularly over-expressed both in the Rb cell line and in the medium used for their culture, comparing to control cell line and the normal supernatant, respectively. Therefore, we provided evidence that miR-142-3p is released by monocytes in the co-culture medium’s exosomes and that it is subsequently up-taken by Rb cells, causing the inhibition of proliferation of Rb cell line by affecting cell cycle progression. Conclusion This study highlights the role of exosomic miR-142-3p in the TME of Rb and identifies new molecular targets, which are able to control tumor growth aiming the development of a forward-looking miR-based strategy.
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Affiliation(s)
- Meropi Plousiou
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, Italy
| | - Alessandro De Vita
- Osteoncology Unit, Bioscience Laboratory IRCCS Istituto Romagnolo Per lo Studio dei Tumori (IRST), "Dino Amadori", 47014 Meldola, Italy
| | - Giacomo Miserocchi
- Osteoncology Unit, Bioscience Laboratory IRCCS Istituto Romagnolo Per lo Studio dei Tumori (IRST), "Dino Amadori", 47014 Meldola, Italy
| | - Erika Bandini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, Italy
| | - Ivan Vannini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, Italy
| | - Mattia Melloni
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, Italy
| | - Nestory Masalu
- Unit of Biostatistics and Clinical Trials, Bioscience Laboratory IRCCS Istituto Romagnolo Per lo Studio dei Tumori (IRST), "Dino Amadori", 47014 Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", 47014 Meldola, Italy
| | - Patrizia Serra
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Scientifico Romagnolo Per lo Studio dei Tumori (IRST), "Dino Amadori", Meldola, Italy
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Vannini I, Urbini M, Melloni M, Rossi T, Gallerani G, Palleschi M, Azzali I, Puccetti M, Martinelli G, Fabbri F. Case Report: Analysis of Plasma Extracellular Vesicles in a Triple Negative Spindle-Cell Metaplastic Breast Cancer Patient. Front Med (Lausanne) 2022; 9:827206. [PMID: 35355608 PMCID: PMC8959346 DOI: 10.3389/fmed.2022.827206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/17/2022] [Indexed: 12/02/2022] Open
Abstract
Metaplastic breast cancer (MpBC) is a rare tumor representing 1% of all breast malignancies. The prognosis of this histologic subtype is actually poor and there are no current clear-cut therapeutic guidelines. Hence, despite its uniqueness, its aggressive prognostic profile strongly encourages further studies to identify new markers and therapeutic targets. Herein, we report a case of 32-years-old patient affected with of triple negative spindle-shaped MpBC. The research of molecular targets on the primary tumor did not allow performing an effective therapeutic choice. Extracellular Vesicles (EVs) are under intense study as new potential pathophysiological markers and targets for therapeutic applications, in different tumors for their role in tumor onset, progression and aggressiveness. Here, we examined the involvement of EVs in this case, to look into the MpBC microenvironment willing to identify new potential molecular targets, pathways of aggressiveness, and markers of prognosis and therapeutic efficacy. Firstly, we characterized MpBC patient EV dimensions and surface proteins. Moreover, we analyzed the EV RNA cargo supposed to be delivered to nearby and distant recipient cells. Interestingly, we observed a dysregulation EV-contained miRNAs, which could determine an increased expression of oncogenes in the tumor microenvironment, probably enabling cancer progression. These data suggest that the characterization of miRNA cargo of EVs could be important for the identification of new markers and for the application of future new target therapies.
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Affiliation(s)
- Ivan Vannini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Milena Urbini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Mattia Melloni
- Laboratory of Biomarkers, Biomolecular Targets and Personalized Medicine in Oncology, Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Tania Rossi
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Giulia Gallerani
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Michela Palleschi
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Irene Azzali
- Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | | | - Giovanni Martinelli
- Scientific Directorate, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Italy
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6
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Brenna C, Simioni C, Varano G, Conti I, Costanzi E, Melloni M, Neri LM. Optical tissue clearing associated with 3D imaging: application in preclinical and clinical studies. Histochem Cell Biol 2022; 157:497-511. [PMID: 35235045 PMCID: PMC9114043 DOI: 10.1007/s00418-022-02081-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2022] [Indexed: 12/23/2022]
Abstract
Understanding the inner morphology of intact tissues is one of the most competitive challenges in modern biology. Since the beginning of the twentieth century, optical tissue clearing (OTC) has provided solutions for volumetric imaging, allowing the microscopic visualization of thick sections of tissue, organoids, up to whole organs and organisms (for example, mouse or rat). Recently, tissue clearing has also been introduced in clinical settings to achieve a more accurate diagnosis with the support of 3D imaging. This review aims to give an overview of the most recent developments in OTC and 3D imaging and to illustrate their role in the field of medical diagnosis, with a specific focus on clinical applications.
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Affiliation(s)
- Cinzia Brenna
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy.,Medical Research Center, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Carolina Simioni
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121, Ferrara, Italy.,LTTA - Electron Microscopy Center, University of Ferrara, 44121, Ferrara, Italy
| | - Gabriele Varano
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy
| | - Ilaria Conti
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy
| | - Eva Costanzi
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy
| | - Mattia Melloni
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy
| | - Luca Maria Neri
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy. .,LTTA - Electron Microscopy Center, University of Ferrara, 44121, Ferrara, Italy.
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7
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Bandini E, Rossi T, Scarpi E, Gallerani G, Vannini I, Salvi S, Azzali I, Melloni M, Salucci S, Battistelli M, Serra P, Maltoni R, Cho WC, Fabbri F. Early Detection and Investigation of Extracellular Vesicles Biomarkers in Breast Cancer. Front Mol Biosci 2021; 8:732900. [PMID: 34820420 PMCID: PMC8606536 DOI: 10.3389/fmolb.2021.732900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/07/2021] [Indexed: 02/01/2023] Open
Abstract
Breast cancer (BC) is the most commonly diagnosed malignant tumor in women worldwide, and the leading cause of cancer death in the female population. The percentage of patients experiencing poor prognosis along with the risk of developing metastasis remains high, also affecting the resistance to current main therapies. Cancer progression and metastatic development are no longer due entirely to their intrinsic characteristics, but also regulated by signals derived from cells of the tumor microenvironment. Extracellular vesicles (EVs) packed with DNA, RNA, and proteins, are the most attractive targets for both diagnostic and therapeutic applications, and represent a decisive challenge as liquid biopsy-based markers. Here we performed a study based on a multiplexed phenotyping flow cytometric approach to characterize BC-derived EVs from BC patients and cell lines, through the detection of multiple antigens. Our data reveal the expression of EVs-related biomarkers derived from BC patient plasma and cell line supernatants, suggesting that EVs could be exploited for characterizing and monitoring disease progression.
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Affiliation(s)
- Erika Bandini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Tania Rossi
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Emanuela Scarpi
- Biostatistics and Clinical Trials Unit, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Giulia Gallerani
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Ivan Vannini
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Samanta Salvi
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Irene Azzali
- Biostatistics and Clinical Trials Unit, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Mattia Melloni
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Sara Salucci
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Michela Battistelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Patrizia Serra
- Biostatistics and Clinical Trials Unit, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Roberta Maltoni
- Department of Medical Oncology, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China
| | - Francesco Fabbri
- Biosciences Laboratory, IRCCS Istituto Romagnolo per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
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Abstract
A phenomenological study was conducted to determine the lived experience of healing a venous ulcer for patients in an ambulatory surgical clinic. In addition to seven tape-recorded, transcribed interviews, weekly participant observations were made for 1 year. Interviews and field notes were transcribed and analyzed for themes by using van Manen's approach. Four major themes emerged from the analysis: (1) "A forever healing process" refers to the extended time over which healing occurs. (2) "Limits and accommodations" refers to the patterns of limitation related to mobility and activity restrictions due to pain and disfigurement. (3) "Powerlessness" describes the resignation about the inevitability of wound recurrence. (4) "Who cares?" refers to variation among the patients in assuming responsibly for managing their ulcer. Understanding the lived experience of venous leg ulcer disease allows care providers to provide empathic care. Patients can be encouraged to be active members of the treatment team and to assume responsibility for care and lifestyle choices.
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Affiliation(s)
- S K Chase
- Boston College School of Nursing, Chestnut Hill, Massachusetts 02167-3812, USA
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9
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Rizzo S, Melloni M. [Incidence of orodental trauma in sports: soccer, water polo and cycling]. Stomatol Mediterr 1988; 8:333-8. [PMID: 2908542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The Authors analyze the incidence of the oral-dental traumas during the practise of three different sports: soccer, water polo and cycling, underlining the importance of the use of mouthguard as a specific oral protection.
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10
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Belloi L, Pirani A, Bongiorno G, Melloni M, Dinelli M, Francia R, Gallerani A, Vecchi GP. [Evaluation of pharmacologic treatment associated with motor-activation therapy in the prevention of senile impairment]. Minerva Med 1987; 78:1543-50. [PMID: 3670697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The study was designed to assess any changes in certain aspects of aging produced by combined drug (buflomedil) and motor activation therapy (MAT). The study was conducted on 3 selected groups of 10 women aged 60-74 years with initial signs of mental and physical senile impairment as revealed by appropriate psychometric and laboratories tests. The 3 groups (I: control, II: MAT, III: buflomedil + MAT) were given a series of cognitive, behavioural, affective and cardiovascular tests before and after the 6-month study. The results showed a deterioration in the parameters considered among the control group and a significant improvement especially in cardiovascular, affective and behavioural parameters as well as certain cognitive aspects (attention, mental state) in the group treated with MAT only. The combination of MAT and buflomedil had a positive influence on all parameters considered. In particular it acted extensively on the cognitive parameters. It is therefore concluded that the combination of MAT and drug treatment is a valid system for the prevention of senile impairment since it acts on the main biological, psychological and social aspects of the elderly patient.
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Affiliation(s)
- L Belloi
- Università degli Studi di Modena Cattedra di Gerontologia e Geriatria
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Melloni M, Rechenmann R, Ringoet A, van de Geijn S, Wilthagen R. In-depth localization of beta-emitting isotopes with a semiconductor detector spectrometric assembly. ACTA ACUST UNITED AC 1969. [DOI: 10.1016/0029-554x(69)90497-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Ringoet A, Rechenmann RV, Melloni M. Calcium localization within live oat leaves using a semiconductor detector assembly. Planta 1968; 81:280-286. [PMID: 24519681 DOI: 10.1007/bf00391163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/1968] [Indexed: 06/03/2023]
Abstract
Pathways of movement of foliar-applied (45)Ca in young oat leaves are localized by means of in-vivo β spectrometry with a semiconductor detector assembly. The shift of the maximum energy of the observed spectra to the lower-energy region, which is a function of the thickness of the tissue layer between an internal (45)Ca source and the detector, is the most reliable and easily interpretable parameter for (45)Ca localization. Transport of foliar-applied Ca occurs in the vascular bundles. The major part of the transported Ca moves out of the conducting tissue and accumulates in the mesophyll and epidermis cells. The passage from the transport to the accumulation phase is a rapid process. These results are compared with those obtained by histoautoradiography.
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Affiliation(s)
- A Ringoet
- Association Euratom - Ital, Wageningen
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