A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\foxoScer\UAS.cFa

General Information
SymbolDmel\foxoScer\UAS.cFaSpeciesD. melanogaster
NameSaccharomyces cerevisiae UAS construct a of JungerFlyBase IDFBal0151927
Feature typealleleAssociated geneDmel\foxo
Allele class
Mutagenin vitro construct - regulatory fusion
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Description
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FB2013_03
FB2013_02
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Construct: Expression of cDNA for foxo is governed by Scer\UAS regulatory sequences.
Carried in construct
Cytology
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Statement
Reference
Motor neuronal overexpression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Rapgap1-OK6] does not result in neuromuscular junction overgrowth. These larvae display a modest reduction in the number of microtubule loops compared with wild-type.
Female re-mating behaviour is not altered in flies expressing foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Switch1.106] 24 hours after mating to wild-type flies.
Expression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Lsp2.PH] rescues the increase in triglyceride levels and the heart defects normally caused by a high-fat diet. Expression of foxo[Scer\UAS.cFa] under the simultaneous control of both Scer\GAL4[Scer\UAS.cHa] and Scer\GAL4[tin.cBa] does not rescue the increase in triglyceride levels caused by a high-fat diet. However, the heart defects normally caused by a high-fat diet are rescued in these animals.
Overexpression of foxo[Scer\UAS.cFa] in muscles under the control of Scer\GAL4[Mhc.PW] does not affect developmental growth and differentiation (as estimated by body weight and sarcomere assembly). Overexpression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW] results in delayed accumulation of age-related protein aggregates in muscles. Overexpression of foxo[Scer\UAS.cFa] in adult muscles under the control of Scer\GAL4[Mef2.PR] and Scer\GAL80[ts.αTub84B] significantly preserves muscle protein homeostasis, while the muscles of wild-type animals display increased accumulation of protein aggregates. Compared to syngenic controls, the age-related accumulation of protein aggregates in retinas, brains and the peripheral fat body of the abdomen is also decreased in flies overexpressing foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW]. Muscle functionality gradually decreases in wild-type aging flies, resulting in impaired climbing and flight ability. Overexpression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW] significantly preserves muscle strength during aging. Overexpression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW] in muscles is sufficient to significantly extend longevity compared with wild type by increasing the median and maximum life span of flies. Food intake of flies is decreased in response to overexpression of foxo[Scer\UAS.cFa] in muscles via Scer\GAL4[Mhc.PW]. The body weight of adult flies overexpressing foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW] does not significantly differ from that of syngenic controls. There is a significant decrease in the hemolymph glucose concentration compared with syngenic control in flies overexpressing foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Mhc.PW]
Expression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Ccap.PP] results in the loss of adult-specific neurite projections; many central neurites and efferents are lost.
Females expressing foxoScer\UAS.cFa under the control of Scer\GAL4Switch1.106 (in the presence of RU486) show an increase in mean and maximum lifespan compared with controls.
Females expressing foxoScer\UAS.cFa under the control of Scer\GAL4Switch1.106 (in the presence of RU486) show an increase in median life-span and reduced fecundity compared to controls. These females also show increased resistance to paraquat. No effect on life-span is seen in males expressing foxoScer\UAS.cFa under the control of Scer\GAL4Switch1.106 (in the presence of RU486).
When foxoScer\UAS.cFa is driven by Scer\GAL4bun-Switch1.32 (in adults fed on mifepristone) the median lifespan can increased by as much as 56%.
In contrast to wild-type flies, the stress-induced heart failure rate of foxoScer\UAS.cFa, when under the control of both Scer\GAL4tin.cBa and Scer\GAL4Scer\UAS.cHa, does not increase with age.
When expression is driven by Scer\GAL4GMR.PF the eye is reduced and the ommatidial pattern disrupted.
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Comments
Expression of foxo[Scer\UAS.cFa] under the control of Scer\GAL4[Lk6-DJ634] rescues the circadian arrhythmia seen in foxo[21]/foxo[25] mutants. Phototaxis is not affected by paraquat treatment in these mutants.
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Reported As
Symbol Synonym
foxoScer\UAS.cFa
 
Name Synonym
Saccharomyces cerevisiae UAS construct a of Junger
Secondary FlyBase IDs
hide References ( 12 )
Research paper
Nechipurenko and Broihier, 2012, J. Cell Biol. 196(3): 345--362
FoxO limits microtubule stability and is itself negatively regulated by microtubule disruption. [FBrf0217391]
Wigby et al., 2011, Proc. Biol. Sci. 278(1704): 424--431
Insulin signalling regulates remating in female Drosophila. [FBrf0212666]
Birse et al., 2010, Cell Metab. 12(5): 533--544
High-fat-diet-induced obesity and heart dysfunction are regulated by the TOR pathway in Drosophila. [FBrf0212220]
Demontis and Perrimon, 2010, Cell 143(5): 813--825
FOXO/4E-BP Signaling in Drosophila Muscles Regulates Organism-wide Proteostasis during Aging. [FBrf0212347]
Zhao et al., 2008, Genetics 178(2): 883--901
A Drosophila gain-of-function screen for candidate genes involved in steroid-dependent neuroendocrine cell remodeling. [FBrf0204350]
Zheng et al., 2007, Proc. Natl. Acad. Sci. U.S.A. 104(40): 15899--15904
FOXO and insulin signaling regulate sensitivity of the circadian clock to oxidative stress. [FBrf0216135]
Giannakou et al., 2004, Science 305(5682): 361
Long-lived Drosophila with overexpressed dFOXO in adult fat body. [FBrf0179222]
Hwangbo et al., 2004, Nature 429(6991): 562--566
Drosophila dFOXO controls lifespan and regulates insulin signalling in brain and fat body. [FBrf0179031]
Wessells et al., 2004, Nat. Genet. 36(12): 1275--1281
Insulin regulation of heart function in aging fruit flies. [FBrf0184189]
Junger et al., 2003, J. Biol. 2(3): 20
The Drosophila Forkhead transcription factor FOXO mediates the reduction in cell number associated with reduced insulin signaling. [FBrf0162177]
Note
Giannakou et al., 2005, Science 307(5710): 675
Response to comment on 'Long-lived Drosophila with overexpressed dFOXO in adult fat body'. [FBrf0188461]
Tatar, 2005, Science 307(5710): 675
Comment on 'Long-lived Drosophila with overexpressed dFOXO in adult fat body'. [FBrf0188462]