An insight into hypothesized biological mechanisms contributing to the Flash effect

In recent years, FLASH radiotherapy (FLASH RT) has gained attention in preclinical studies as a potential advancement in cancer treatment. The great advantage of FLASH RT is the ultra-fast, high doses delivery that have a similar or greater effect on cancer cells while sparing normal, healthy tissue...

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Main Authors: Francesca Del Debbio, Maria Sofia Bertilacchi, Alessandra Gonnelli, Eleonora Da Pozzo, Valentina Tozzini, Claudia Martini, Simone Capaccioli, Barbara Costa
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2023.1201708/full
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author Francesca Del Debbio
Maria Sofia Bertilacchi
Alessandra Gonnelli
Alessandra Gonnelli
Eleonora Da Pozzo
Eleonora Da Pozzo
Eleonora Da Pozzo
Valentina Tozzini
Valentina Tozzini
Claudia Martini
Claudia Martini
Claudia Martini
Simone Capaccioli
Simone Capaccioli
Simone Capaccioli
Barbara Costa
Barbara Costa
author_facet Francesca Del Debbio
Maria Sofia Bertilacchi
Alessandra Gonnelli
Alessandra Gonnelli
Eleonora Da Pozzo
Eleonora Da Pozzo
Eleonora Da Pozzo
Valentina Tozzini
Valentina Tozzini
Claudia Martini
Claudia Martini
Claudia Martini
Simone Capaccioli
Simone Capaccioli
Simone Capaccioli
Barbara Costa
Barbara Costa
author_sort Francesca Del Debbio
collection DOAJ
description In recent years, FLASH radiotherapy (FLASH RT) has gained attention in preclinical studies as a potential advancement in cancer treatment. The great advantage of FLASH RT is the ultra-fast, high doses delivery that have a similar or greater effect on cancer cells while sparing normal, healthy tissue surrounding the tumor site. This is known as the FLASH effect. However, currently, there are not enough in vitro and in vivo data to transpose FLASH RT to human trials. This mini review summarizes the available in vitro data on electron beam FLASH, focusing on possible mechanisms of the FLASH effect. Current studies have focused on various types of cancer, including lung cancer, glioblastoma, uterus adenocarcinoma, cervix carcinoma, prostate carcinoma, melanoma, breast cancer, head and neck squamous cell carcinoma, and colon adenocarcinoma. Several hypotheses have been proposed to explain the biological mechanisms contributing to the to the selective FLASH effect, including differences between healthy and cancer cells in production of reactive oxygen species and free radicals, limitation of Fenton reaction caused by high Fe2+/3+ levels in tumor cells, and impaired DNA damage repair mechanisms occurring in cancer.
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spelling doaj.art-c9e1f736b2c0448b8bbba478bd27c8782023-05-22T08:40:24ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-05-011110.3389/fphy.2023.12017081201708An insight into hypothesized biological mechanisms contributing to the Flash effectFrancesca Del Debbio0Maria Sofia Bertilacchi1Alessandra Gonnelli2Alessandra Gonnelli3Eleonora Da Pozzo4Eleonora Da Pozzo5Eleonora Da Pozzo6Valentina Tozzini7Valentina Tozzini8Claudia Martini9Claudia Martini10Claudia Martini11Simone Capaccioli12Simone Capaccioli13Simone Capaccioli14Barbara Costa15Barbara Costa16Department of Pharmacy, University of Pisa, Pisa, ItalyDepartment of Pharmacy, University of Pisa, Pisa, ItalyDepartment of Surgical, Medical and Molecular Pathology and Critical Care Medicine, Pisa, ItalyCentro Pisano Multidisciplinare Sulla Ricerca e Implementazione Clinica Della Flash Radiotherapy (CPFR), CPFR@CISUP Facilities—Università di Pisa, Pisa, ItalyDepartment of Pharmacy, University of Pisa, Pisa, ItalyCentro Pisano Multidisciplinare Sulla Ricerca e Implementazione Clinica Della Flash Radiotherapy (CPFR), CPFR@CISUP Facilities—Università di Pisa, Pisa, ItalyCenter for Instrument Sharing University of Pisa (CISUP), Pisa, ItalyCentro Pisano Multidisciplinare Sulla Ricerca e Implementazione Clinica Della Flash Radiotherapy (CPFR), CPFR@CISUP Facilities—Università di Pisa, Pisa, ItalyIstituto Nanoscienze—CNR, NEST-Scuola Normale Superiore, Pisa, ItalyDepartment of Pharmacy, University of Pisa, Pisa, ItalyCentro Pisano Multidisciplinare Sulla Ricerca e Implementazione Clinica Della Flash Radiotherapy (CPFR), CPFR@CISUP Facilities—Università di Pisa, Pisa, ItalyCenter for Instrument Sharing University of Pisa (CISUP), Pisa, ItalyCentro Pisano Multidisciplinare Sulla Ricerca e Implementazione Clinica Della Flash Radiotherapy (CPFR), CPFR@CISUP Facilities—Università di Pisa, Pisa, ItalyCenter for Instrument Sharing University of Pisa (CISUP), Pisa, ItalyDepartment of Physics, University of Pisa, Pisa, ItalyDepartment of Pharmacy, University of Pisa, Pisa, ItalyCenter for Instrument Sharing University of Pisa (CISUP), Pisa, ItalyIn recent years, FLASH radiotherapy (FLASH RT) has gained attention in preclinical studies as a potential advancement in cancer treatment. The great advantage of FLASH RT is the ultra-fast, high doses delivery that have a similar or greater effect on cancer cells while sparing normal, healthy tissue surrounding the tumor site. This is known as the FLASH effect. However, currently, there are not enough in vitro and in vivo data to transpose FLASH RT to human trials. This mini review summarizes the available in vitro data on electron beam FLASH, focusing on possible mechanisms of the FLASH effect. Current studies have focused on various types of cancer, including lung cancer, glioblastoma, uterus adenocarcinoma, cervix carcinoma, prostate carcinoma, melanoma, breast cancer, head and neck squamous cell carcinoma, and colon adenocarcinoma. Several hypotheses have been proposed to explain the biological mechanisms contributing to the to the selective FLASH effect, including differences between healthy and cancer cells in production of reactive oxygen species and free radicals, limitation of Fenton reaction caused by high Fe2+/3+ levels in tumor cells, and impaired DNA damage repair mechanisms occurring in cancer.https://www.frontiersin.org/articles/10.3389/fphy.2023.1201708/fullradiotherapymulti-scale modelingFlash effectscancerDNA damage repair mechanisms
spellingShingle Francesca Del Debbio
Maria Sofia Bertilacchi
Alessandra Gonnelli
Alessandra Gonnelli
Eleonora Da Pozzo
Eleonora Da Pozzo
Eleonora Da Pozzo
Valentina Tozzini
Valentina Tozzini
Claudia Martini
Claudia Martini
Claudia Martini
Simone Capaccioli
Simone Capaccioli
Simone Capaccioli
Barbara Costa
Barbara Costa
An insight into hypothesized biological mechanisms contributing to the Flash effect
Frontiers in Physics
radiotherapy
multi-scale modeling
Flash effects
cancer
DNA damage repair mechanisms
title An insight into hypothesized biological mechanisms contributing to the Flash effect
title_full An insight into hypothesized biological mechanisms contributing to the Flash effect
title_fullStr An insight into hypothesized biological mechanisms contributing to the Flash effect
title_full_unstemmed An insight into hypothesized biological mechanisms contributing to the Flash effect
title_short An insight into hypothesized biological mechanisms contributing to the Flash effect
title_sort insight into hypothesized biological mechanisms contributing to the flash effect
topic radiotherapy
multi-scale modeling
Flash effects
cancer
DNA damage repair mechanisms
url https://www.frontiersin.org/articles/10.3389/fphy.2023.1201708/full
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