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Antioxidant Strategy to Prevent Simulated Microgravity-Induced Effects on Bone Osteoblasts.


ABSTRACT: The effects induced by microgravity on human body functions have been widely described, in particular those on skeletal muscle and bone tissues. This study aims to implement information on the possible countermeasures necessary to neutralize the oxidative imbalance induced by microgravity on osteoblastic cells. Using the model of murine MC3T3-E1 osteoblast cells, cellular morphology, proliferation, and metabolism were investigated during exposure to simulated microgravity on a random positioning machine in the absence or presence of an antioxidant-the 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox). Our results confirm that simulated microgravity-induced morphological and metabolic alterations characterized by increased levels of reactive oxygen species and a slowdown of the proliferative rate. Interestingly, the use of Trolox inhibited the simulated microgravity-induced effects. Indeed, the antioxidant-neutralizing oxidants preserved cell cytoskeletal architecture and restored cell proliferation rate and metabolism. The use of appropriate antioxidant countermeasures could prevent the modifications and damage induced by microgravity on osteoblastic cells and consequently on bone homeostasis.

SUBMITTER: Morabito C 

PROVIDER: S-EPMC7279347 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Antioxidant Strategy to Prevent Simulated Microgravity-Induced Effects on Bone Osteoblasts.

Morabito Caterina C   Guarnieri Simone S   Cucina Alessandra A   Bizzarri Mariano M   Mariggiò Maria A MA  

International journal of molecular sciences 20200521 10


The effects induced by microgravity on human body functions have been widely described, in particular those on skeletal muscle and bone tissues. This study aims to implement information on the possible countermeasures necessary to neutralize the oxidative imbalance induced by microgravity on osteoblastic cells. Using the model of murine MC3T3-E1 osteoblast cells, cellular morphology, proliferation, and metabolism were investigated during exposure to simulated microgravity on a random positioning  ...[more]

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