Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity

The deep space environment contains many risks to astronauts during space missions, such as galactic cosmic rays (GCRs) comprised of naturally occurring heavy ions. Heavy ion radiation is increasingly being used in cancer therapy, including novel regimens involving carbon therapy. Previous investiga...

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Autores principales: Sydney Weber Boutros, Benjamin Zimmerman, Sydney C. Nagy, Joanne S. Lee, Ruby Perez, Jacob Raber
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Publicado: Frontiers Media S.A. 2021
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Acceso en línea:https://doaj.org/article/ab1d46c465bd4e8f8cb50b37ca5f511a
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spelling oai:doaj.org-article:ab1d46c465bd4e8f8cb50b37ca5f511a2021-11-16T11:14:55ZAmifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity1664-042X10.3389/fphys.2021.770502https://doaj.org/article/ab1d46c465bd4e8f8cb50b37ca5f511a2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphys.2021.770502/fullhttps://doaj.org/toc/1664-042XThe deep space environment contains many risks to astronauts during space missions, such as galactic cosmic rays (GCRs) comprised of naturally occurring heavy ions. Heavy ion radiation is increasingly being used in cancer therapy, including novel regimens involving carbon therapy. Previous investigations involving simulated space radiation have indicated a host of detrimental cognitive and behavioral effects. Therefore, there is an increasing need to counteract these deleterious effects of heavy ion radiation. Here, we assessed the ability of amifostine to mitigate cognitive injury induced by simulated GCRs in C57Bl/6J male and female mice. Six-month-old mice received an intraperitoneal injection of saline, 107 mg/kg, or 214 mg/kg of amifostine 1 h prior to exposure to a simplified five-ion radiation (protons, 28Si, 4He, 16O, and 56Fe) at 500 mGy or sham radiation. Mice were behaviorally tested 2–3 months later. Male mice that received saline and radiation exposure failed to show novel object recognition, which was reversed by both doses of amifostine. Conversely, female mice that received saline and radiation exposure displayed intact object recognition, but those that received amifostine prior to radiation did not. Amifostine and radiation also had distinct effects on males and females in the open field, with amifostine affecting distance moved over time in both sexes, and radiation affecting time spent in the center in females only. Whole-brain analysis of cFos immunoreactivity in male mice indicated that amifostine and radiation altered regional connectivity in areas involved in novel object recognition. These data support that amifostine has potential as a countermeasure against cognitive injury following proton and heavy ion irradiation in males.Sydney Weber BoutrosBenjamin ZimmermanBenjamin ZimmermanBenjamin ZimmermanSydney C. NagyJoanne S. LeeRuby PerezJacob RaberJacob RaberJacob RaberFrontiers Media S.A.articleamifostineheavy ion radiationcognitioncFossex differencesPhysiologyQP1-981ENFrontiers in Physiology, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic amifostine
heavy ion radiation
cognition
cFos
sex differences
Physiology
QP1-981
spellingShingle amifostine
heavy ion radiation
cognition
cFos
sex differences
Physiology
QP1-981
Sydney Weber Boutros
Benjamin Zimmerman
Benjamin Zimmerman
Benjamin Zimmerman
Sydney C. Nagy
Joanne S. Lee
Ruby Perez
Jacob Raber
Jacob Raber
Jacob Raber
Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
description The deep space environment contains many risks to astronauts during space missions, such as galactic cosmic rays (GCRs) comprised of naturally occurring heavy ions. Heavy ion radiation is increasingly being used in cancer therapy, including novel regimens involving carbon therapy. Previous investigations involving simulated space radiation have indicated a host of detrimental cognitive and behavioral effects. Therefore, there is an increasing need to counteract these deleterious effects of heavy ion radiation. Here, we assessed the ability of amifostine to mitigate cognitive injury induced by simulated GCRs in C57Bl/6J male and female mice. Six-month-old mice received an intraperitoneal injection of saline, 107 mg/kg, or 214 mg/kg of amifostine 1 h prior to exposure to a simplified five-ion radiation (protons, 28Si, 4He, 16O, and 56Fe) at 500 mGy or sham radiation. Mice were behaviorally tested 2–3 months later. Male mice that received saline and radiation exposure failed to show novel object recognition, which was reversed by both doses of amifostine. Conversely, female mice that received saline and radiation exposure displayed intact object recognition, but those that received amifostine prior to radiation did not. Amifostine and radiation also had distinct effects on males and females in the open field, with amifostine affecting distance moved over time in both sexes, and radiation affecting time spent in the center in females only. Whole-brain analysis of cFos immunoreactivity in male mice indicated that amifostine and radiation altered regional connectivity in areas involved in novel object recognition. These data support that amifostine has potential as a countermeasure against cognitive injury following proton and heavy ion irradiation in males.
format article
author Sydney Weber Boutros
Benjamin Zimmerman
Benjamin Zimmerman
Benjamin Zimmerman
Sydney C. Nagy
Joanne S. Lee
Ruby Perez
Jacob Raber
Jacob Raber
Jacob Raber
author_facet Sydney Weber Boutros
Benjamin Zimmerman
Benjamin Zimmerman
Benjamin Zimmerman
Sydney C. Nagy
Joanne S. Lee
Ruby Perez
Jacob Raber
Jacob Raber
Jacob Raber
author_sort Sydney Weber Boutros
title Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
title_short Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
title_full Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
title_fullStr Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
title_full_unstemmed Amifostine (WR-2721) Mitigates Cognitive Injury Induced by Heavy Ion Radiation in Male Mice and Alters Behavior and Brain Connectivity
title_sort amifostine (wr-2721) mitigates cognitive injury induced by heavy ion radiation in male mice and alters behavior and brain connectivity
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/ab1d46c465bd4e8f8cb50b37ca5f511a
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