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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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Gamberini MR, Fortini M, Stievano A, Calori E, Riontino MV, Ceccherelli G, Venturelli D, Chicchi R, Biguzzi R, Fagnoni F, Portararo GA, Lasagni D, Borotti E, Buonocore R, Govoni M, Reverberi R. Impact of the preparation method of red cell concentrates on transfusion indices in thalassemia patients: A randomized crossover clinical trial. Transfusion 2021; 61:1729-1739. [PMID: 33948969 PMCID: PMC8252500 DOI: 10.1111/trf.16432] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/03/2020] [Revised: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The average hemoglobin content of red cell concentrates (RCC) varies depending on the method of preparation. Surprisingly less data are available concerning the clinical impact of those differences. STUDY DESIGN AND METHODS The effects of two types of RCC (RCC-A, RCC-B) on transfusion regime were compared in a non-blinded, prospective, randomized, two-period, and crossover clinical trial. RCC-A was obtained by whole blood leukoreduction and subsequent plasma removal, RCC-B removing plasma and buffy coat first, followed by leukoreduction. Eligible patients were adult, with transfusion-dependent thalassemia (TDT). RESULTS RCC-A contained 63.9 (60.3-67.8) grams of hemoglobin per unit (median with 1st and 3rd quartile), RCC-B 54.5 (51.0-58.2) g/unit. Fifty-one patients completed the study. With RCC-B, the average pre-transfusion hemoglobin concentration was 9.3 ± 0.5 g/dl (mean ± SD), the average transfusion interval 14.2 (13.7-16.3) days, the number of RCC units transfused per year 39.3 (35.4-47.3), and the transfusion power index (a composite index) 258 ± 49. With RCC-A, the average pre-transfusion hemoglobin concentration was 9.6 ± 0.5 g/dl (+2.7%, effect size 0.792), the average transfusion interval 14.8 (14.0-18.5) days (+4.1%, effect size 0.800), the number of RCC units transfused per year 34.8 (32.1-42.5) (-11.4%, effect size -1.609), and the transfusion power index 272 ± 61 (+14.1%, effect size 0.997). All differences were statistically highly significant (p < .00001). The frequency of transfusion reactions was 0.59% with RCC-A and 0.56% with RCC-B (p = 1.000). CONCLUSION To reduce the number of RCC units consumed per year and the number of transfusion episodes, TDT patients should receive RCC with the highest average hemoglobin content.
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Affiliation(s)
- Maria Rita Gamberini
- Day Hospital Thalassemia and Hemoglobinopathies, Azienda Ospedaliera Universitaria, Ferrara, Italy
| | - Monica Fortini
- Day Hospital Thalassemia and Hemoglobinopathies, Azienda Ospedaliera Universitaria, Ferrara, Italy
| | - Alice Stievano
- Day Hospital Thalassemia and Hemoglobinopathies, Azienda Ospedaliera Universitaria, Ferrara, Italy
| | - Eleonora Calori
- Blood Transfusion Service, Area Metropolitana, Bologna, Italy
| | | | | | | | - Roberta Chicchi
- Blood Transfusion Service, Azienda USL della Romagna, Cesena, Italy
| | - Rino Biguzzi
- Blood Transfusion Service, Azienda USL della Romagna, Cesena, Italy
| | - Francesco Fagnoni
- Blood Transfusion Service, Azienda Ospedaliera Universitaria, Parma, Italy
| | | | - Daniela Lasagni
- Blood Transfusion Service, Azienda USL-IRCCS, Reggio Emilia, Italy
| | - Elena Borotti
- Blood Transfusion Service, Azienda USL, Piacenza, Italy
| | | | - Maurizio Govoni
- Blood Transfusion Service, Azienda Ospedaliera Universitaria, Ferrara, Italy
| | - Roberto Reverberi
- Blood Transfusion Service, Azienda Ospedaliera Universitaria, Ferrara, Italy
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