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FARAFARA Cure FA

Frataxin and the molecular mechanism of mitochondrial iron-loading in Friedreich's ataxia

The mitochondrion is a major site for the metabolism of iron, which is necessary for metabolic processes critical for cell vitality. The mitochondrial protein, frataxin, is known to play a significant role in both cellular and mitochondrial iron metabolism due to its iron-binding properties and its involvement in iron-sulfur cluster (ISC) and heme synthesis. The inherited neuro- and cardio-degenerative disease, Friedreich's ataxia (FA), is caused by the deficient expression of frataxin that leads to deleterious alterations in iron metabolism. These changes lead to the accumulation of inorganic iron aggregates in the mitochondrial matrix that are presumed to play a key role in the oxidative damage and subsequent degenerative features of this disease. Furthermore, the concurrent dys-regulation of cellular antioxidant defense, which coincides with frataxin deficiency, exacerbates oxidative stress.

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Jen Farmer

Jen Farmer

Executive Director

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