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Expression of Human L-Dopa Decarboxylase (DDC) under Conditions of Oxidative Stress.


ABSTRACT: Oxidative stress is known to influence mRNA levels, translation, and proteolysis. The importance of oxidative stress has been demonstrated in several human diseases, including neurodegenerative disorders. L-Dopa decarboxylase (DDC) is the enzyme that converts L-Dopa to dopamine (DA). In spite of a large number of studies, little is known about the biological significance of the enzyme under physiological and pathological conditions. Here, we investigated the relationship between DDC expression and oxidative stress in human neural and non-neural cells. Oxidative stress was induced by treatment with H2O2. Our data indicated that mRNA and protein expression of DDC was enhanced or remained stable under conditions of ROS induction, despite degradation of total RNA and increased cytotoxicity and apoptosis. Moreover, DDC silencing caused an increase in the H2O2-induced cytotoxicity. The current study suggests that DDC is involved in the mechanisms of oxidative stress.

SUBMITTER: Lotsios NS 

PROVIDER: S-EPMC10742706 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature

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Expression of Human L-Dopa Decarboxylase (DDC) under Conditions of Oxidative Stress.

Lotsios Nikolaos S NS   Arvanitis Nikolaos N   Charonitakis Alexandros G AG   Mpekoulis George G   Frakolaki Efseveia E   Vassilaki Niki N   Sideris Diamantis C DC   Vassilacopoulou Dido D  

Current issues in molecular biology 20231216 12


Oxidative stress is known to influence mRNA levels, translation, and proteolysis. The importance of oxidative stress has been demonstrated in several human diseases, including neurodegenerative disorders. L-Dopa decarboxylase (DDC) is the enzyme that converts L-Dopa to dopamine (DA). In spite of a large number of studies, little is known about the biological significance of the enzyme under physiological and pathological conditions. Here, we investigated the relationship between DDC expression a  ...[more]

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