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Busoni S, Bruzzi M, Giomi S, Poggiali C, Quattrocchi M, Betti M, D'Urso D, Fedeli L, Mazzoni LN, Paolucci M, Rossi F, Taddeucci A, Bettarini S, Tortoli P, Belli G, Bernardi L, Gasperi C, Campanella F. Surgeon eye lens dose monitoring in interventional neuroradiology, cardiovascular and radiology procedures. Phys Med 2022; 104:123-128. [PMID: 36401940 DOI: 10.1016/j.ejmp.2022.11.002] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/17/2022] Open
Abstract
PURPOSE This study investigated the radiation dose to surgeon eye lens for single procedure and normalised to exposure parameters for eight selected neuroradiology, cardiovascular and radiology interventional procedures. METHODS The procedures investigated were diagnostic study, Arteriovenous Malformations treatment (AVM) and aneurysm embolization for neuroradiology procedures, Coronary Angiography and Percutaneous Transluminal Coronary Angioplasty (CA-PTCA), Pacemaker and Implantable Cardioverter-Defibrillator implantation (PM-ICD), Endovascular Aortic Repair (EVAR) and Fenestrated Endovascular Aortic Repair (FEVAR) for cardiovascular and electrophysiology procedures. CT-guided lung biopsy was also monitored. All procedures were performed with table-mounted and ceiling-suspended shields (0.5 mm lead equivalent thickness), except for FEVAR and PM-ICD where only a table mounted shield was present, and CT-guided lung biopsy where no shield was used. Dose assessment was performed using a dosemeter positioned close to the most exposed eye of the surgeon, outside the protective eyewear. RESULTS The surgeon most exposed eye lens median Hp(3) equivalent dose for a single procedure, without protective eyewear contribution, was 18 μSv for neuroradiology diagnostic study, 62 μSv for AVM, 38 μSv for aneurysm embolization, 33 μSv for CA-PTCA, 39 μSv for PM-ICD, 49 μSv for EVAR, 2500 μSv for FEVAR, 153 μSv for CT-guided lung biopsy. CONCLUSIONS In interventional procedures, the 20 mSv/year dose limit for surgeon eye lens exposure might be exceeded if shields or protective eyewear are not used. Surgeon eye lens doses, normalised to single procedures and to exposure parameters, are a valuable tool for determining appropriate radiation protection measures and dedicated eye lens dosemeter assignment.
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Affiliation(s)
- S Busoni
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy.
| | - M Bruzzi
- Physics and Astronomy Department, University of Florence, Italy
| | - S Giomi
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy; Physics and Astronomy Department, University of Florence, Italy
| | - C Poggiali
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy; Physics and Astronomy Department, University of Florence, Italy
| | | | - M Betti
- Health Physics Unit, AUSL Toscana Centro, Italy
| | - D D'Urso
- Health Physics Unit, AULSS 2 Marca Trevigiana, Italy
| | - L Fedeli
- Health Physics Unit, AUSL Toscana Centro, Italy
| | - L N Mazzoni
- Health Physics Unit, AUSL Toscana Centro, Italy
| | - M Paolucci
- Health Physics Unit, AUSL Umbria 2, Italy
| | - F Rossi
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy
| | - A Taddeucci
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy
| | - S Bettarini
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy
| | - P Tortoli
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy
| | - G Belli
- Health Physics Unit, AOU Careggi (Firenze University Hospital), Italy
| | - L Bernardi
- Health Physics Unit, AUSL Toscana Centro, Italy
| | - C Gasperi
- Health Physics Unit, AUSL Toscana Sud-Est, Italy
| | - F Campanella
- Department of Medicine, Epidemiology, Workplace and Environmental Hygiene, INAIL, Italy
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Busoni S, Bruzzi M, Bettarini S, Betti M, Fedeli L, Mazzoni L, Quattrocchi M, Rossi F, Taddeucci A, Tortoli P, Belli G, Bernardi L, Doria S, Gasperi C, Gori C, Piffer S, Redapi L, Campanella F. Surgeon eye-lens dose monitoring in interventional procedures: a multi-centre and multi-procedure survey. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00060-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Fedeli L, Belli G, Ciccarone A, Coniglio A, Esposito M, Giannelli M, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Bernardi L, Betti M, Caivano R, Carni M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliado G, Morzenti S, Niespolo A, Nocetti L, Noferini L, Oberhofer N, Orsingher L, Quattrocchi M, Ricci A, Savini A, Taddeucci A, Testa C, Tortoli P, Luchinat C, Tenori L, Gobbi G, Gori C, Busoni S, Mazzoni L. Multicenter comparison of MR scanners for quantitative diffusion weighted imaging: apparent diffusion coefficient dependence on acquisition plan and spatial position – preliminary results. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00475-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Cubas-Rolim E, Yung FR, Marques LA, Souza BV, Gripp MR, Ribeiro L, Oliveira CLA, Gasperi C, Fagundes MC, Mendonça DL. Illustrated Prescription – History of evolution at the School of Patients DF. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1088] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Issue
There are challenges in PHC associated with low functional literacy in health. The Illustrated Prescription was developed aiming to reduce drug error and increase access to self-care, allowing better understanding and adherence to treatment; facilitate the safe use of medications; strengthen the support network.
Description of the Problem
In April 2016, systematization and preparation of pictorial prescriptions began in the service of origin, one of the researches with the highest participation of multiprofessional residents of pharmacy and medical interns. Optimization and complement of recipe was performed. Several models were systematized in the orientation of users in face-to-face care of prescription reviews. The proposed model has (1) written component, schedule of medicines and strategy organizing medicines according to time of administration and (2) strategy for organizing primary packaging of medicinal products using coloured elastic bands.
Results
The evolution of Illustrated Prescription components resulted in the progressive organization and understanding in the indication of schedules and drugs. There was development, improvement and validation of it as a self-care tool, especially for patients with CNDs. There was a social impact with media dissemination (6 TV stations and 2 radio stations) and national and international congresses; totaling 5 show-forums and 4 congress with participation of the service. Cash prizes were invested in the infrastructure of the FHS workplaces.
Lessons
The evolution of Illustrated Prescription allowed progressive gain of organization and clarity for patients with difficulty reading, which directed efforts to avoid drug errors, especially prescription.
Key messages
Illustrated Prescription allowed us to invest more time guiding the patient in accessible and understandable language. Illustrated Prescription is useful for empowering and training it in self-care, promoting, mainly, autonomy and citizenship.
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Affiliation(s)
- E Cubas-Rolim
- Secretaria De Saude - Distrito Federal, Brasilia, Brazil
- Universidade De Brasilia, Brasilia, Brazil
- Universidade Euro-Americana, Brasilia, Brazil
| | - F R Yung
- Universidade De Brasilia, Brasilia, Brazil
| | | | - B V Souza
- Universidade De Brasilia, Brasilia, Brazil
| | - M R Gripp
- Universidade De Brasilia, Brasilia, Brazil
| | - L Ribeiro
- Universidade De Brasilia, Brasilia, Brazil
| | | | - C Gasperi
- Universidade De Brasilia, Brasilia, Brazil
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Cubas-Rolim E, Yung FR, Marques LA, Souza BV, Gripp MR, Ribeiro L, Oliveira CLA, Gasperi C, Fagundes MC, Mendonça DL. Primary care professional validation of visual model of prescription – Illustrated prescription. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1089] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Issue
Chronic diseases such as hypertension and diabetes have great global impact on morbidity, mortality and costs. Incorrect use of medicines is especially worrisome for vulnerable populations with low health literacy, and visual models of prescription can bring benefit. The objective of this study was to validate the visual model of prescription Illustrated Prescription to obtain an adapted prescription with greater clarity, correction and cost-efficiency especially for risk users in a vulnerable peripheral region of the capital of Brazil served free of charge by the Unified Health System.
Description of the Problem
We conducted a content validation by primary health care nurses, pharmacists and physicians (PHC) by Delphi technique, applied in two phases from November to December 2018, through a questionnaire that evaluated clarity, relevance and feasibility of performing Illustrated Prescription, with field for comments. We used a 4-point Likert scale, Cronbach Alpha for reliability and Content Validation Index (CVI) with agreement above 0.8 indicating validation. Project approved by the Ethics Committee - FEPECS.
Results
Round-1: 29 out of 32 items were validated, with Cronbach's alpha .9812. Round-2: Included 4 new items, guidelines for indicating whole tablet, adjustment of the font size and color column size of elastic alloys, all items being validated and Cronbach's alpha of 0.9876.
Lessons
Validation ensures clarity and correction of the Illustrated Prescription, being extremely important for dissemination of the visual model for prescribing. It allows future evaluation of increased drug adherence and risk reduction related to incorrect use of medications especially for illiterate or visually impaired users.
Key messages
Illustrated Prescription is a validated tool that opens up the possibility of greater safety and efficient use of chronic medications, especially for vulnerable users with chronic diseases. Validation ensures clarity and correction of the Illustrated Prescription, being extremely important for dissemination of the visual model for prescribing.
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Affiliation(s)
- E Cubas-Rolim
- Secretaria De Saude - Distrito Federal, Brasilia, Brazil
- Universidade De Brasilia, Brasilia, Brazil
- Universidade Euro-Americana, Brasilia, Brazil
| | - F R Yung
- Universidade De Brasilia, Brasilia, Brazil
| | | | - B V Souza
- Universidade De Brasilia, Brasilia, Brazil
| | - M R Gripp
- Universidade De Brasilia, Brasilia, Brazil
| | - L Ribeiro
- Universidade De Brasilia, Brasilia, Brazil
| | | | - C Gasperi
- Universidade De Brasilia, Brasilia, Brazil
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Bonomo P, Talamonti C, Marrazzo L, Desideri I, Pezzulla D, Dominici L, Rampini A, Bertocci S, De Majo R, Gasperi C, Curion A, Lastrucci L, Pallotta S, Livi L, Caini S. EP-1200 Is skin dose distribution a predictive factor for the development of severe radiation dermatitis? Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31620-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Coniglio A, Fedeli L, Belli G, Ciccarone A, Esposito M, Giannelli M, Gobbi G, Gori C, Mazzoni L, Nocetti L, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Betti M, Caivano R, Carnì M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Luchinat C, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliadò G, Morzenti S, Noferini L, Oberhofer N, Quattrocchi M, Ricci A, Taddeucci A, Tenori L, Torresin A, Busoni S. 20. Diffusion MRI and ADC accuracy at the isocenter: An AIFM multisite comparison study. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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8
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Fedeli L, Belli G, Ciccarone A, Coniglio A, Esposito M, Giannelli M, Gobbi G, Gori C, Mazzoni L, Nocetti L, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Betti M, Caivano R, Carnì M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Luchinat C, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliadò G, Morzenti S, Noferini L, Oberhofer N, Quattrocchi M, Ricci A, Taddeucci A, Tenori L, Torresin A, Busoni S. 21 Phase encoding direction and position effects on ADC in diffusion MRI: An AFIM multisite comparison study. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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9
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Marino C, Carbonini C, Veronese I, Agostinelli S, Aimonetto S, Bagalà P, Barbiero S, Benecchi G, Borzi G, Bresciani S, Broggi S, Cagni E, Casale M, Cilla S, Clemente S, Consorti R, Corletto D, Delana A, Esposito M, Falco M, Fedele D, Fusella M, Garibaldi C, Gasperi C, Giglioli F, Giancaterino S, Iervolino C, Infusino E, Mameli A, Manco L, Masi L, Menghi E, Moretti E, Nardiello B, Paladini L, Panizza D, Pastore G, Radice A, Redaelli I, Rosica F, Russo S, Saiani F, Savini A, Siragusa C, Strigari L, Talamonti C, Vaccara E, Villaggi E, Zucchetti C, Stasi M, Mancosu P. 40. Design of a national survey to assess the technology applied to SBRT. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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10
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Pasquino M, Stasi M, Mancosu P, Russo S, Villaggi E, Gasperi C, Casale M, Loi G, Strigari L, Miceli R, Raza G, Fedele D, Vaiano A, Falco M, Moretti E, Giglioli F, Nigro R, Talamonti C, Pastore G, Luxardo S, Menghi E, Benecchi G, Clemente S, Marino C, Borzi G, Nardiello B, Ardu V, Paladini L, Cagni E, Russo G, Spiazzi L, Vittorini F. Dosimetric characterization of linac small beams using a plastic scintillator detector: A multicenter study. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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Talamonti C, Falco M, Bartoli A, Russo S, Iervolino C, Menghi E, Moretti E, Mones E, Fiandra C, Casale M, Pastore G, Oliviero C, DiCastro E, Luxardo S, Vaiano A, Raza G, Borzi G, Carbonini C, Consorti R, Pressello M, Gasperi C, Tonghi LB, Palleri F, Marino C, Ardu V, Linsalata S, Riccardi S, Vittorini F, Spiazzi L, Rosica F, Iervolino C, Villaggi E, Mancosu P. Small field relative dosimetry using a silicon diode of new generation. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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12
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Talamonti C, Russo S, Barone TL, Benecchi G, Borzi G, Bresciani S, Cagni E, Carbonino C, Casale M, Clemente S, Consorti R, D’Alessio V, Dicastro E, Donofrio G, Falco M, Fedele D, Fiandra C, Frassanito C, Gasperi C, Giglioli F, Iervolino C, Infusino E, Linsalata S, Loi G, Lorenzini E, Marino C, Martinotti S, Masi L, Menghi E, Miceli R, Moretti E, Nardiello B, Nigro R, Pastore G, Pressello M, Pimpinella M, Raza G, Rosica F, Ruggeri R, Spiazzi L, Stasi M, Strigari L, Tremolada V, Vaiano A, Vigorito S, Villaggi E, Vittorini F, Mancosu P. Small beam dosimetry: A multi-center multi-detector italian project. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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13
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Talamonti C, Falco M, Barone Tonghi L, Benecchi G, Carbonini C, Casale M, Clemente S, Consorti R, Di Castro E, Esposito M, Fiandra C, Gasperi C, Iervolino C, Luxardo S, Marino C, Mones E, Oliviero C, Pressello M, Riccardi S, Rosica F, Spiazzi L, Stasi M, Strigari L, Mancosu P, Russo S. EP-1948: Multicentre comparison for small field dosimetry using the new silicon diode RAZOR. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33199-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Belli G, D'Elia F, Cimmino A, Curion A, Gasperi C, Zenone F, Ciccotosto C. Monitoring of data of exposure of computed tomography examinations by analysis of radiation dose structured reports. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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15
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Bruno A, Gasperi C, Rampini A, Belli G. Validation of a deformable image registration algorithm for radiotherapy applications. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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16
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Porta A, Gasperi C, Nollo G, Lucini D, Pizzinelli P, Antolini R, Pagani M. Global versus local linear beat-to-beat analysis of the relationship between arterial pressure and pulse transit time during dynamic exercise. Med Biol Eng Comput 2006; 44:331-7. [PMID: 16937174 DOI: 10.1007/s11517-006-0042-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2005] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
Global linear analysis has been traditionally performed to verify the relationship between pulse transit time (PTT) and systolic arterial pressure (SAP) at the level of their spontaneous beat-to-beat variabilities: PTT and SAP have been plotted in the plane (PTT,SAP) and a significant linear correlation has been found. However, this relationship is weak and in specific individuals cannot be found. This result prevents the utilization of the SAP-PTT relationship to derive arterial pressure changes from PTT measures on an individual basis. We propose a local linear approach to study the SAP-PTT relationship. This approach is based on the definition of short SAP-PTT sequences characterized by SAP increase (decrease) and PTT decrease (increase) and on their search in the SAP and PTT beat-to-beat series. This local approach was applied to PTT and SAP series derived from 13 healthy humans during incremental supine dynamic exercise (at 10, 20 and 30% of the nominal individual maximum effort) and compared to the global approach. While global approach failed in some subjects, local analysis allowed the extraction of the gain of the SAP-PTT relationship in all subjects both at rest and during exercise. When both local and global analyses were successful, the local SAP-PTT gain is more negative than the global one as a likely result of noise reduction.
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Affiliation(s)
- A Porta
- Dipartimento di Scienze Precliniche, LITA di Vialba, Laboratorio di Modellistica di Sistemi Complessi, Universita degli Studi di Milano, Via G.B. Grassi 74, 20157, Milano, Italy.
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Citterio S, Rescigno M, Foti M, Granucci F, Aggujaro D, Gasperi C, Matyszak MK, Girolomoni G, Ricciardi-Castagnoli P. Dendritic cells as natural adjuvants. Methods 1999; 19:142-7. [PMID: 10525450 DOI: 10.1006/meth.1999.0839] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Dendritic cells (DCs) are professional antigen presenting cells that hold the key to the induction of T-cell responses. Therefore, the use of DCs for immunotherapy to stimulate immune responses has recently raised a great deal of interest. Many clinical trials using DCs have been initiated to stimulate immune responses against tumors or infectious agents. Several issues need to be considered before DCs can be used successfully as natural adjuvants: DCs have to be generated in sufficient numbers; they should display morphological, phenotypical, and functional properties of DCs; and they should be able to present antigens. In the present review we focus on methods for the purification of DCs from human bone marrow and peripheral blood and for the optimization of in vitro cell culture systems. Methods to generate growth factor-dependent mouse DC lines are also described.
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Affiliation(s)
- S Citterio
- Department of Biotechnology and Biological Sciences, University of Milano-Bicocca, Milan, I-20129, Italy
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18
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Gasperi C, Rescigno M, Granucci F, Citterio S, Matyszak MK, Sciurpi MT, Lanfrancone L, Ricciardi-Gastagnoli P. Retroviral gene transfer, rapid selection, and maintenance of the immature phenotype in mouse dendritic cells. J Leukoc Biol 1999; 66:263-7. [PMID: 10449164 DOI: 10.1002/jlb.66.2.263] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We used the retroviral vector PINCO [which expresses the green fluorescent protein (GFP) as a selectable marker], to infect growth factor-dependent immature D1 dendritic cells (DC). The efficiency of infection in different experiments was between 5 and 30%, but subsequent cell sorting led to a virtually homogeneous population of GFP-positive cells. Retroviral infection did not modify the immature DC phenotype, as shown by the low expression of major histocompatibility complex and co-stimulatory molecules. Furthermore, the GFP-positive D1 cells underwent full maturation after lipopolysaccharide treatment, as indicated by a high expression of cell-surface MHC and co-stimulatory molecules, and also by strong stimulatory activity in allogeneic mixed lymphocyte reaction. The high efficiency of this retroviral system, the rapidity of the technique, and the possibility to overcome in vitro selection make this method very attractive for the stable introduction of heterologous genes into proliferating immature mouse D1 cells. Furthermore, this approach is suitable for functional studies of new DC-specific genes involved in DC maturation and survival.
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Affiliation(s)
- C Gasperi
- Department of Biotechnology and Bioscience, University of Milano-Bicocca, Milan, Italy
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