LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 13

Search options

  1. Article ; Online: The Role of Particle Therapy in the Risk of Radio-induced Second Tumors: A Review of the Literature.

    Facoetti, Angelica / Barcellini, Amelia / Valvo, Francesca / Pullia, Marco

    Anticancer research

    2019  Volume 39, Issue 9, Page(s) 4613–4617

    Abstract: One of the most important late side-effects of radiation therapy is the development of radiation-induced secondary malignancies. In the last years, this topic has significantly influenced treatment decision-making as the number of long-term cancer ... ...

    Abstract One of the most important late side-effects of radiation therapy is the development of radiation-induced secondary malignancies. In the last years, this topic has significantly influenced treatment decision-making as the number of long-term cancer survivors has significantly increased with advances in treatment modalities. All efforts are being made to prevent the incidence of tumors induced by radiation. In this review article we summarize the current knowledge about treatment-related secondary cancers with a particular attention to hadrontherapy.
    MeSH term(s) Age Factors ; Animals ; Bystander Effect ; Humans ; Neoplasms, Second Primary/epidemiology ; Neoplasms, Second Primary/etiology ; Neoplasms, Second Primary/mortality ; Radiation, Ionizing ; Radiotherapy/adverse effects ; Radiotherapy/methods
    Language English
    Publishing date 2019-09-10
    Publishing country Greece
    Document type Journal Article ; Review
    ZDB-ID 604549-2
    ISSN 1791-7530 ; 0250-7005
    ISSN (online) 1791-7530
    ISSN 0250-7005
    DOI 10.21873/anticanres.13641
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Factors released by low and high-LET irradiated fibroblasts modulate migration and invasiveness of pancreatic cancer cells.

    Charalampopoulou, Alexandra / Barcellini, Amelia / Ciocca, Mario / Di Liberto, Riccardo / Pasi, Francesca / Pullia, Marco Giuseppe / Orlandi, Ester / Facoetti, Angelica

    Frontiers in oncology

    2022  Volume 12, Page(s) 1003494

    Abstract: Introduction: Radiotherapy represents a major treatment option for patients with pancreatic cancer, however, its benefits remain limited also due to the ability of cancer cells to migrate to the surrounding tissues. Low-LET ionizing radiation is well ... ...

    Abstract Introduction: Radiotherapy represents a major treatment option for patients with pancreatic cancer, however, its benefits remain limited also due to the ability of cancer cells to migrate to the surrounding tissues. Low-LET ionizing radiation is well known to promote tumor cell migration and invasion, nevertheless, little data provided by studies using high-LET radiation has led to ambiguous findings. What is hypothesized to be fundamental in the modulation of migration of tumor cells exposed to ionizing radiation is the influence of the microenvironment. Therefore, the properties of cells that populate the tumor stroma cannot be ignored when studying the influence of radiation on the migratory and invasive capacity of cancer cells. This is especially important in the case of pancreatic malignancies that are characterized by an abundance of stromal cells, including cancer-associated fibroblasts, which are known to orchestrate the cross-talk with tumor cells.
    Aim: The current study aims to investigate whether the presence of factors released by irradiated fibroblasts affects the migratory and invasive capacity of pancreatic cancer cells exposed to different doses of photons or C-ions.
    Materials and methods: AsPC-1 and AG01522 cells were irradiated with the same dose of photons or C-ions at room temperature. Through Boyden chamber assay, we tested whether factors secreted by irradiated fibroblasts may influence tumor cell migration, while the invasiveness of AsPC-1 cells was assessed using matrigel precoated inserts in which medium collected from non-irradiated (0 Gy), photon and C-ion irradiated fibroblasts, was added. Data were analyzed by Student t-test using GraphPad software. The mean ± s.d. was determined with a significance level of p<0.05.
    Results: In the presence of conditioned medium collected from 1 Gy and 2 Gy photon irradiated fibroblasts, the number of migrated tumor cells increased (P<0.0360, P<0.0001) but decreased at 4 Gy dose (P<0.002). There was a trend of reduction in migration (P<0.0460, P<0.038, P<0.0024, P<0.0002), as well as a decrease in invasiveness (P<0.0525, P<0.0035, P<0.0868, P<0.0310) after exposure to 0.5 Gy, 1 Gy, 2 Gy and 4 Gy of C-ions.
    Conclusions: The presence of irradiated fibroblasts affected the invasiveness capability of pancreatic cancer cells, probably by the reciprocal release of soluble factors whose production is differently modulated after high or low-LET radiation. Understanding the effects of irradiation on the metastatic potential of pancreatic cancer cells is of utmost importance for improving the outcome and tailoring the therapeutic approach. This challenging scenario requires a continuous and multidisciplinary approach that involves clinicians together with researcher experts in oncological and radiation treatment. In the last years, including preclinical experiences in a multidisciplinary approach has proved to be a winning strategy in clinical oncological research.
    Language English
    Publishing date 2022-10-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2022.1003494
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: In Vitro Effects of Photon Beam and Carbon Ion Radiotherapy on the Perineural Invasion of Two Cell Lines of Neurotropic Tumours.

    Charalampopoulou, Alexandra / Barcellini, Amelia / Frittitta, Giuseppe Emanuele / Fulgini, Giorgia / Ivaldi, Giovanni Battista / Magro, Giuseppe / Liotta, Marco / Orlandi, Ester / Pullia, Marco Giuseppe / Tabarelli de Fatis, Paola / Facoetti, Angelica

    Life (Basel, Switzerland)

    2023  Volume 13, Issue 3

    Abstract: Primary mucosal melanoma (PMM) and pancreatic ductal adenocarcinoma (PDAC) are two aggressive malignancies, characterized by intrinsic radio-chemoresistance and neurotropism, a histological feature resulting in frequent perineural invasion (PNI), ... ...

    Abstract Primary mucosal melanoma (PMM) and pancreatic ductal adenocarcinoma (PDAC) are two aggressive malignancies, characterized by intrinsic radio-chemoresistance and neurotropism, a histological feature resulting in frequent perineural invasion (PNI), supported by neurotrophic factors secreted in the tumour microenvironment (TME), such as neurotrophin-3 (NT-3). Carbon-ion radiotherapy (CIRT) could represent an effective option in unresectable PMM and PDAC. Only a few data about the effects of CIRT on PNI in relation to NT-3 are available in the literature, despite the numerous pieces of evidence revealing the peculiar effects of this type of radiation on tumour cell migration. This in vitro study investigated for the first time the response of PMM and PDAC cells to NT-3 and evaluated the effects of conventional photon beam radiotherapy (XRT) and CIRT on cell viability, proliferation, and migration. Our results demonstrated the greater capacity of C-ions to generally decrease cell viability, proliferation, and migration, while the addition of NT-3 after both types of irradiation determined an increase in these features, maintaining a dose-dependent trend and acting more effectively as a chemoattractant than inductor in the case of migration.
    Language English
    Publishing date 2023-03-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662250-6
    ISSN 2075-1729
    ISSN 2075-1729
    DOI 10.3390/life13030794
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Ultrasound-assisted carbon ion dosimetry and range measurement using injectable polymer-shelled phase-change nanodroplets: in vitro study.

    Toumia, Yosra / Pullia, Marco / Domenici, Fabio / Facoetti, Angelica / Ferrarini, Michele / Heymans, Sophie V / Carlier, Bram / Van Den Abeele, Koen / Sterpin, Edmond / D'hooge, Jan / D'Agostino, Emiliano / Paradossi, Gaio

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 8012

    Abstract: Methods allowing for in situ dosimetry and range verification are essential in radiotherapy to reduce the safety margins required to account for uncertainties introduced in the entire treatment workflow. This study suggests a non-invasive dosimetry ... ...

    Abstract Methods allowing for in situ dosimetry and range verification are essential in radiotherapy to reduce the safety margins required to account for uncertainties introduced in the entire treatment workflow. This study suggests a non-invasive dosimetry concept for carbon ion radiotherapy based on phase-change ultrasound contrast agents. Injectable nanodroplets made of a metastable perfluorobutane (PFB) liquid core, stabilized with a crosslinked poly(vinylalcohol) shell, are vaporized at physiological temperature when exposed to carbon ion radiation (C-ions), converting them into echogenic microbubbles. Nanodroplets, embedded in tissue-mimicking phantoms, are exposed at 37 °C to a 312 MeV/u clinical C-ions beam at different doses between 0.1 and 4 Gy. The evaluation of the contrast enhancement from ultrasound imaging of the phantoms, pre- and post-irradiation, reveals a significant radiation-triggered nanodroplets vaporization occurring at the C-ions Bragg peak with sub-millimeter shift reproducibility and dose dependency. The specific response of the nanodroplets to C-ions is further confirmed by varying the phantom position, the beam range, and by performing spread-out Bragg peak irradiation. The nanodroplets' response to C-ions is influenced by their concentration and is dose rate independent. These early findings show the ground-breaking potential of polymer-shelled PFB nanodroplets to enable in vivo carbon ion dosimetry and range verification.
    MeSH term(s) Carbon ; Ions ; Polymers ; Reproducibility of Results ; Ultrasonography
    Chemical Substances Ions ; Polymers ; Carbon (7440-44-0)
    Language English
    Publishing date 2022-05-14
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-11524-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Mixed particle beam for simultaneous treatment and online range verification in carbon ion therapy: Proof-of-concept study.

    Mazzucconi, Davide / Agosteo, Stefano / Ferrarini, Michele / Fontana, Luigi / Lante, Valeria / Pullia, Marco / Savazzi, Simone

    Medical physics

    2018  Volume 45, Issue 11, Page(s) 5234–5243

    Abstract: Purpose: Radiation therapy with ion beams provides a better conformation and effectiveness of the dose delivered to the tumor with respect to photon beams. This implies that a small uncertainty or variation in the crossed tissue shape and density may ... ...

    Abstract Purpose: Radiation therapy with ion beams provides a better conformation and effectiveness of the dose delivered to the tumor with respect to photon beams. This implies that a small uncertainty or variation in the crossed tissue shape and density may lead to a more important underdosage of the tumor and/or an overdosage of the surrounding healthy tissue. Although the online control of beam fluence and transverse position is well managed by an appropriate beam delivery system, the online measurement of the longitudinal position of the Bragg peak inside the patient is still an open issue. In this paper we propose a proof-of-concept study of a technique that would allow the online verification of the patient thickness along the beam direction, which could permit detecting a subset of possible range error causes, such as morphological variations.
    Methods: The nuclei
    Results: The predictions of both the models are in good agreement with the measurements (within the 20% in terms of absolute photons per pixel). The proposed detection system is able to measure the range of a proton beam with sub-millimetrical precision also in the presence of the background produced by carbon ion fragments and discrepancies in the expected range were detected with a resolution better than 1 mm.
    Conclusions: Although many technical issues have still to be addressed for a real implementation in a clinical environment, the preliminary results of this study suggest that a surrogate of real-time verification of the beam range inside the patient during a treatment with carbon ions is possible by adding a small fraction of helium ions to the primary beam.
    MeSH term(s) Heavy Ion Radiotherapy/methods ; Monte Carlo Method ; Proton Therapy ; Radiotherapy Planning, Computer-Assisted ; Time Factors ; Tomography, X-Ray Computed
    Language English
    Publishing date 2018-10-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 188780-4
    ISSN 2473-4209 ; 0094-2405
    ISSN (online) 2473-4209
    ISSN 0094-2405
    DOI 10.1002/mp.13219
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: LIDAL, a Time-of-Flight Radiation Detector for the International Space Station: Description and Ground Calibration.

    Romoli, Giulia / Di Fino, Luca / Santi Amantini, Giorgia / Boretti, Virginia / Lunati, Luca / Berucci, Carolina / Messi, Roberto / Rizzo, Alessandro / Albicocco, Pietro / De Donato, Cinzia / Masciantonio, Giuseppe / Morone, Maria Cristina / Nobili, Giovanni / Baiocco, Giorgio / Mentana, Alice / Pullia, Marco / Tommasino, Francesco / Carrubba, Elisa / Bardi, Antonio /
    Passerai, Marco / Castagnolo, Dario / Mascetti, Gabriele / Crisconio, Marino / Narici, Livio

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 7

    Abstract: LIDAL (Light Ion Detector for ALTEA, Anomalous Long-Term Effects on Astronauts) is a radiation detector designed to measure the flux, the energy spectra and, for the first time, the time-of-flight of ions in a space habitat. It features a combination of ... ...

    Abstract LIDAL (Light Ion Detector for ALTEA, Anomalous Long-Term Effects on Astronauts) is a radiation detector designed to measure the flux, the energy spectra and, for the first time, the time-of-flight of ions in a space habitat. It features a combination of striped silicon sensors for the measurement of deposited energy (using the ALTEA device, which operated from 2006 to 2012 in the International Space Station) and fast scintillators for the time-of-flight measurement. LIDAL was tested and calibrated using the proton beam line at TIFPA (Trento Institute for Fundamental Physics Application) and the carbon beam line at CNAO (National Center for Oncology Hadron-therapy) in 2019. The performance of the time-of-flight system featured a time resolution (sigma) less than 100 ps. Here, we describe the detector and the results of these tests, providing ground calibration curves along with the methodology established for processing the detector's data. LIDAL was uploaded in the International Space Station in November 2019 and it has been operative in the Columbus module since January 2020.
    Language English
    Publishing date 2023-03-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23073559
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: The Role of Carbon Ion Therapy in the Changing Oncology Landscape-A Narrative Review of the Literature and the Decade of Carbon Ion Experience at the Italian National Center for Oncological Hadrontherapy.

    Orlandi, Ester / Barcellini, Amelia / Vischioni, Barbara / Fiore, Maria Rosaria / Vitolo, Viviana / Iannalfi, Alberto / Bonora, Maria / Chalaszczyk, Agnieszka / Ingargiola, Rossana / Riva, Giulia / Ronchi, Sara / Valvo, Francesca / Fossati, Piero / Ciocca, Mario / Mirandola, Alfredo / Molinelli, Silvia / Pella, Andrea / Baroni, Guido / Pullia, Marco Giuseppe /
    Facoetti, Angelica / Orecchia, Roberto / Licitra, Lisa / Vago, Gianluca / Rossi, Sandro

    Cancers

    2023  Volume 15, Issue 20

    Abstract: Background: Currently, 13 Asian and European facilities deliver carbon ion radiotherapy (CIRT) for preclinical and clinical activity, and, to date, 55 clinical studies including CIRT for adult and paediatric solid neoplasms have been registered. The ... ...

    Abstract Background: Currently, 13 Asian and European facilities deliver carbon ion radiotherapy (CIRT) for preclinical and clinical activity, and, to date, 55 clinical studies including CIRT for adult and paediatric solid neoplasms have been registered. The National Center for Oncological Hadrontherapy (CNAO) is the only Italian facility able to accelerate both protons and carbon ions for oncological treatment and research.
    Methods: To summarise and critically evaluate state-of-the-art knowledge on the application of carbon ion radiotherapy in oncological settings, the authors conducted a literature search till December 2022 in the following electronic databases: PubMed, Web of Science, MEDLINE, Google Scholar, and Cochrane. The results of 68 studies are reported using a narrative approach, highlighting CNAO's clinical activity over the last 10 years of CIRT.
    Results: The ballistic and radiobiological hallmarks of CIRT make it an effective option in several rare, radioresistant, and difficult-to-treat tumours. CNAO has made a significant contribution to the advancement of knowledge on CIRT delivery in selected tumour types.
    Conclusions: After an initial ramp-up period, CNAO has progressively honed its clinical, technical, and dosimetric skills. Growing engagement with national and international networks and research groups for complex cancers has led to increasingly targeted patient selection for CIRT and lowered barriers to facility access.
    Language English
    Publishing date 2023-10-20
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers15205068
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Performance of LGAD strip detectors for particle counting of therapeutic proton beams.

    Monaco, Vincenzo / Ali, Omar Hammad / Bersani, Davide / Abujami, Mohammed / Boscardin, Maurizio / Cartiglia, Nicolò / Betta, Gian Franco Dalla / Data, Emanuele / Donetti, Marco / Ferrero, Marco / Ficorella, Francesco / Giordanengo, Simona / Villarreal, Oscar Ariel Marti / Milian, Felix Mas / Mohammadian-Behbahani, Mohammad-Reza / Olivares, Diango Montalvan / Pullia, Marco / Tommasino, Francesco / Verroi, Enrico /
    Vignati, Anna / Cirio, Roberto / Sacchi, Roberto

    Physics in medicine and biology

    2023  Volume 68, Issue 23

    Abstract: ... ...

    Abstract Objective
    MeSH term(s) Radiometry/methods ; Protons ; Silicon ; Proton Therapy ; Cyclotrons
    Chemical Substances Protons ; Silicon (Z4152N8IUI)
    Language English
    Publishing date 2023-11-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 208857-5
    ISSN 1361-6560 ; 0031-9155
    ISSN (online) 1361-6560
    ISSN 0031-9155
    DOI 10.1088/1361-6560/ad02d5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Biomedical Research Programs at Present and Future High-Energy Particle Accelerators.

    Patera, Vincenzo / Prezado, Yolanda / Azaiez, Faical / Battistoni, Giuseppe / Bettoni, Diego / Brandenburg, Sytze / Bugay, Aleksandr / Cuttone, Giacomo / Dauvergne, Denis / de France, Gilles / Graeff, Christian / Haberer, Thomas / Inaniwa, Taku / Incerti, Sebastien / Nasonova, Elena / Navin, Alahari / Pullia, Marco / Rossi, Sandro / Vandevoorde, Charlot /
    Durante, Marco

    Frontiers in physics

    2020  Volume 8, Page(s) 380

    Abstract: Biomedical applications at high-energy particle accelerators have always been an important section of the applied nuclear physics research. Several new facilities are now under constructions or undergoing major upgrades. While the main goal of these ... ...

    Abstract Biomedical applications at high-energy particle accelerators have always been an important section of the applied nuclear physics research. Several new facilities are now under constructions or undergoing major upgrades. While the main goal of these facilities is often basic research in nuclear physics, they acknowledge the importance of including biomedical research programs and of interacting with other medical accelerator facilities providing patient treatments. To harmonize the programs, avoid duplications, and foster collaboration and synergism, the International Biophysics Collaboration is providing a platform to several accelerator centers with interest in biomedical research. In this paper, we summarize the programs of various facilities in the running, upgrade, or construction phase.
    Language English
    Publishing date 2020-11-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2721033-9
    ISSN 2296-424X
    ISSN 2296-424X
    DOI 10.3389/fphy.2020.00380
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Study of the magnets used for a mobile isocenter carbon ion gantry.

    Moreno, Jhonnatan Osorio / Pullia, Marco G / Priano, Cristiana / Lante, Valeria / Necchi, Monica M / Savazzi, Simone

    Journal of radiation research

    2013  Volume 54 Suppl 1, Page(s) i147–54

    Abstract: A conceptual design of a mobile isocenter carbon ion gantry was carried out in the framework of the Particle Training Network for European Radiotherapy (PARTNER) and Union of Light Ion Centres in Europe (ULICE) projects. To validate the magnets used in ... ...

    Abstract A conceptual design of a mobile isocenter carbon ion gantry was carried out in the framework of the Particle Training Network for European Radiotherapy (PARTNER) and Union of Light Ion Centres in Europe (ULICE) projects. To validate the magnets used in this gantry, Finite Element Method (FEM) simulations were performed with COMSOL multiphysics; the purpose was to evaluate the magnetic field quality and the influence of additional support structures for correctors, 90° bending dipole and quadrupoles, both in dynamic and static regimes. Due to the low ramp rates, the dynamic effects do not disturb the homogeneity and the magnetic field level. The differences between the stationary field and the corresponding dynamic field after the end of the ramps are in the order of 10(-4); it implies that the magnets can be operated without significant field lag at the nominal ramp rate. However, even in static regime the magnetic length of corrector magnet decreases by 5% when the rotator mechanical structure is considered. The simulations suggest an optimization phase of the correctors in the rotator.
    MeSH term(s) Algorithms ; Carbon/chemistry ; Computer Simulation ; Equipment Design ; Finite Element Analysis ; Heavy Ion Radiotherapy/instrumentation ; Heavy Ion Radiotherapy/methods ; Humans ; Magnetics ; Magnets ; Neoplasms/radiotherapy ; Particle Accelerators ; Software
    Chemical Substances Carbon (7440-44-0)
    Language English
    Publishing date 2013-07-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603983-2
    ISSN 1349-9157 ; 0449-3060
    ISSN (online) 1349-9157
    ISSN 0449-3060
    DOI 10.1093/jrr/rrt041
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top