Authors: Chung H; Kim AK; Jung SA; Kim SW; Yu K; Lee JH
Abstract: Methionine sulfoxide reductase A (msrA) was previously found to increase resistance to oxidative stress and longevity in animals. We identified Drosophila msrA (dmsrA), a Drosophila homolog of human msrA, as a downstream effector of forkhead box O (FOXO) signaling in Drosophila, which enhances resistance to oxidative stress and increases survival under stressed conditions. Additionally, overexpression of dmsrA in neurons extended the lifespan of flies. Moreover, overexpression of dmsrA in fat body cells caused FOXO to translocate to the nucleus, implying that this possible positive feedback loop between dmsrA and FOXO could potentiate the antioxidant activity of dmsrA and increase the lifespan in Drosophila.
Keywords: Active Transport, Cell Nucleus; Animals; Animals, Genetically Modified; Antioxidants/metabolism; Base Sequence; DNA Primers/genetics; Drosophila Proteins/genetics/*metabolism; Drosophila melanogaster/genetics/growth & development/*metabolism; Fat Body/metabolism; Feedback, Physiological; Forkhead Transcription Factors/*metabolism; Gene Expression; Humans; JNK Mitogen-Activated Protein Kinases/metabolism; Longevity/genetics/physiology; Methionine Sulfoxide Reductases/genetics/*metabolism; Oxidative Stress; Signal Transduction|
Journal: FEBS letters Volume: 584 Issue: 16 Pages: 3609-14 Date: July 27, 2010 PMID: 20655917 |
Chung H, Kim AK, Jung SA, Kim SW, Yu K, Lee JH (2010) The Drosophila homolog of methionine sulfoxide reductase A extends lifespan and increases nuclear localization of FOXO. FEBS letters 584: 3609-14.
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