Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?

Very early after their discovery, X-rays were used in multiple medical applications, such as treatments against cancer, inflammation and pain. Because of technological constraints, such applications involved X-ray doses lower than 1 Gy per session. Progressively, notably in oncology, the dose per se...

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Main Authors: Eymeric Le Reun, Nicolas Foray
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/15/5/1482
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author Eymeric Le Reun
Nicolas Foray
author_facet Eymeric Le Reun
Nicolas Foray
author_sort Eymeric Le Reun
collection DOAJ
description Very early after their discovery, X-rays were used in multiple medical applications, such as treatments against cancer, inflammation and pain. Because of technological constraints, such applications involved X-ray doses lower than 1 Gy per session. Progressively, notably in oncology, the dose per session increased. However, the approach of delivering less than 1 Gy per session, now called low-dose radiation therapy (LDRT), was preserved and is still applied in very specific cases. More recently, LDRT has also been applied in some trials to protect against lung inflammation after COVID-19 infection or to treat degenerative syndromes such as Alzheimer’s disease. LDRT illustrates well the discontinuity of the dose-response curve and the counterintuitive observation that a low dose may produce a biological effect higher than a certain higher dose. Even if further investigations are needed to document and optimize LDRT, the apparent paradox of some radiobiological effects specific to low dose may be explained by the same mechanistic model based on the radiation-induced nucleoshuttling of the ATM kinase, a protein involved in various stress response pathways.
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spelling doaj.art-9e6cf322474e455a90a12d193b7363402023-11-17T07:24:43ZengMDPI AGCancers2072-66942023-02-01155148210.3390/cancers15051482Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?Eymeric Le Reun0Nicolas Foray1Inserm, U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, 28 rue Laennec, 69008 Lyon, FranceInserm, U1296 Unit, “Radiation: Defense, Health and Environment”, Centre Léon-Bérard, 28 rue Laennec, 69008 Lyon, FranceVery early after their discovery, X-rays were used in multiple medical applications, such as treatments against cancer, inflammation and pain. Because of technological constraints, such applications involved X-ray doses lower than 1 Gy per session. Progressively, notably in oncology, the dose per session increased. However, the approach of delivering less than 1 Gy per session, now called low-dose radiation therapy (LDRT), was preserved and is still applied in very specific cases. More recently, LDRT has also been applied in some trials to protect against lung inflammation after COVID-19 infection or to treat degenerative syndromes such as Alzheimer’s disease. LDRT illustrates well the discontinuity of the dose-response curve and the counterintuitive observation that a low dose may produce a biological effect higher than a certain higher dose. Even if further investigations are needed to document and optimize LDRT, the apparent paradox of some radiobiological effects specific to low dose may be explained by the same mechanistic model based on the radiation-induced nucleoshuttling of the ATM kinase, a protein involved in various stress response pathways.https://www.mdpi.com/2072-6694/15/5/1482low-doseradiation therapyLDRTradiosensitivitycancerinflammation
spellingShingle Eymeric Le Reun
Nicolas Foray
Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
Cancers
low-dose
radiation therapy
LDRT
radiosensitivity
cancer
inflammation
title Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
title_full Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
title_fullStr Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
title_full_unstemmed Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
title_short Low-Dose Radiation Therapy (LDRT) against Cancer and Inflammatory or Degenerative Diseases: Three Parallel Stories with a Common Molecular Mechanism Involving the Nucleoshuttling of the ATM Protein?
title_sort low dose radiation therapy ldrt against cancer and inflammatory or degenerative diseases three parallel stories with a common molecular mechanism involving the nucleoshuttling of the atm protein
topic low-dose
radiation therapy
LDRT
radiosensitivity
cancer
inflammation
url https://www.mdpi.com/2072-6694/15/5/1482
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