A Potential Renewed Use of Very Heavy Ions for Therapy: Neon Minibeam Radiation Therapy.
heavy ion therapy
hypoxic tumors
minibeam radiation therapy
normal tissue toxicity
Journal
Cancers
ISSN: 2072-6694
Titre abrégé: Cancers (Basel)
Pays: Switzerland
ID NLM: 101526829
Informations de publication
Date de publication:
17 Mar 2021
17 Mar 2021
Historique:
received:
24
02
2021
revised:
09
03
2021
accepted:
12
03
2021
entrez:
3
4
2021
pubmed:
4
4
2021
medline:
4
4
2021
Statut:
epublish
Résumé
(1) Background: among all types of radiation, very heavy ions, such as Neon (Ne) or Argon (Ar), are the optimum candidates for hypoxic tumor treatments due to their reduced oxygen enhancement effect. However, their pioneering clinical use in the 1970s was halted due to severe side effects. The aim of this work was to provide a first proof that the combination of very heavy ions with minibeam radiation therapy leads to a minimization of toxicities and, thus, opening the door for a renewed use of heavy ions for therapy; (2) Methods: mouse legs were irradiated with either Ne MBRT or Ne broad beams at the same average dose. Skin toxicity was scored for a period of four weeks. Histopathology evaluations were carried out at the end of the study; (3) Results: a significant difference in toxicity was observed between the two irradiated groups. While severe da-mage, including necrosis, was observed in the broad beam group, only light to mild erythema was present in the MBRT group; (4) Conclusion: Ne MBRT is significantly better tolerated than conventional broad beam irradiations.
Identifiants
pubmed: 33802835
pii: cancers13061356
doi: 10.3390/cancers13061356
pmc: PMC8002595
pii:
doi:
Types de publication
Journal Article
Langues
eng
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