Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>

Reducing the oxidative stress in neurons extends lifespan in <i>Drosophila melanogaster</i>, highlighting the crucial role of neuronal oxidative damage in lifespan determination. However, the source of the reactive oxygen species (ROS) that provoke oxidative stress in neurons is not clea...

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Main Authors: Minwoo Baek, Wijeong Jang, Changsoo Kim
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/13/2059
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author Minwoo Baek
Wijeong Jang
Changsoo Kim
author_facet Minwoo Baek
Wijeong Jang
Changsoo Kim
author_sort Minwoo Baek
collection DOAJ
description Reducing the oxidative stress in neurons extends lifespan in <i>Drosophila melanogaster</i>, highlighting the crucial role of neuronal oxidative damage in lifespan determination. However, the source of the reactive oxygen species (ROS) that provoke oxidative stress in neurons is not clearly defined. Here, we identify <i>dual oxidase</i> (<i>duox</i>), a calcium-activated ROS-producing enzyme, as a lifespan determinant. Due to the lethality of <i>duox</i> homozygous mutants, we employed a <i>duox</i> heterozygote that exhibited normal appearance and movement. We found that <i>duox</i> heterozygous male flies, which were isogenized with control flies, demonstrated extended lifespan. Neuronal knockdown experiments further suggested that <i>duox</i> is crucial to oxidative stress in neurons. Our findings suggest <i>duox</i> to be a source of neuronal oxidative stress associated with animal lifespan.
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spelling doaj.art-3fe1240db7a846cf8e569918dfb667fe2023-11-23T19:48:50ZengMDPI AGCells2073-44092022-06-011113205910.3390/cells11132059Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>Minwoo Baek0Wijeong Jang1Changsoo Kim2School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, KoreaSchool of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, KoreaSchool of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, KoreaReducing the oxidative stress in neurons extends lifespan in <i>Drosophila melanogaster</i>, highlighting the crucial role of neuronal oxidative damage in lifespan determination. However, the source of the reactive oxygen species (ROS) that provoke oxidative stress in neurons is not clearly defined. Here, we identify <i>dual oxidase</i> (<i>duox</i>), a calcium-activated ROS-producing enzyme, as a lifespan determinant. Due to the lethality of <i>duox</i> homozygous mutants, we employed a <i>duox</i> heterozygote that exhibited normal appearance and movement. We found that <i>duox</i> heterozygous male flies, which were isogenized with control flies, demonstrated extended lifespan. Neuronal knockdown experiments further suggested that <i>duox</i> is crucial to oxidative stress in neurons. Our findings suggest <i>duox</i> to be a source of neuronal oxidative stress associated with animal lifespan.https://www.mdpi.com/2073-4409/11/13/2059lifespanduoxROS<i>Drosophila melanogaster</i>
spellingShingle Minwoo Baek
Wijeong Jang
Changsoo Kim
Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
Cells
lifespan
duox
ROS
<i>Drosophila melanogaster</i>
title Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
title_full Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
title_fullStr Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
title_full_unstemmed Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
title_short Dual Oxidase, a Hydrogen-Peroxide-Producing Enzyme, Regulates Neuronal Oxidative Damage and Animal Lifespan in <i>Drosophila melanogaster</i>
title_sort dual oxidase a hydrogen peroxide producing enzyme regulates neuronal oxidative damage and animal lifespan in i drosophila melanogaster i
topic lifespan
duox
ROS
<i>Drosophila melanogaster</i>
url https://www.mdpi.com/2073-4409/11/13/2059
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AT wijeongjang dualoxidaseahydrogenperoxideproducingenzymeregulatesneuronaloxidativedamageandanimallifespaninidrosophilamelanogasteri
AT changsookim dualoxidaseahydrogenperoxideproducingenzymeregulatesneuronaloxidativedamageandanimallifespaninidrosophilamelanogasteri