Evidence map›Paper›PMID 17349761›Full record

ArticleExperimental gerontology2007

Alteration of Drosophila life span using conditional, tissue-specific expression of transgenes triggered by doxycyline or RU486/Mifepristone.

Daniel Ford, Nicholas Hoe, Gary N Landis, Kevin Tozer, Allan Luu, Deepak Bhole, Ananth Badrinath, John Tower

Open access · greenAbstract read
In one paragraph

Article in Experimental gerontology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 90 citations in OpenAlex.

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  11. Review
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  13. Regulation ofFrontiers in neuroscience · 2021
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  20. Analysis of Drosophila melanogaster Lifespan.Methods in molecular biology (Clifton, N.J.) · 2020
    Article

6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Daniel FordMolecular and Computational Biology Program, Department of Biological Sciences, University of Southern California, 1050 Childs Way, Room 201, Los Angeles, CA 90089-2910, USA.
Nicholas Hoe
Gary N Landis
Kevin Tozer
Allan Luu
Deepak Bhole
Ananth Badrinath
John Tower
University of Southern California · US

Funding

TRAINING IN ENDOCRINOLOGY AND NEUROIOLOGY OF AGINGT32AG000093 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI FINCH, CALEB E · 1985 to 2007
$2.9M
AGING-SPECIFIC GENE EXPRESSION IN DROSOPHILAR01AG011833 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI TOWER, JOHN GERARD · 1994 to 2013
$2.8M
NIA NIH HHS AG00093NIA NIH HHS AG11833NIA NIH HHS R01 AG011833NIA NIH HHS T32 AG000093
6 · The paper itself

Abstract

The conditional systems Tet-on and Geneswitch were compared and optimized for the tissue-specific expression of transgenes and manipulation of life span in adult Drosophila. Two versions of Tet-on system reverse-tetracycline-Trans-Activator (rtTA) were compared: the original rtTA, and rtTAM2-alt containing mutations designed to optimize regulation and expression. The rtTAM2-alt version gave less leaky expression of target constructs in the absence of doxycyline, however the absolute level of expression that could be achieved was less than that produced by rtTA, in contrast to a previous report. Existing UAS-rtTAM2-alt insertions were re-balanced, and combined with several tissue-general and tissue-specific GAL4 driver lines to yield tissue-specific, doxycyline-inducible transgene expression over three orders of magnitude. The Geneswitch (GS) system also had low background, but the absolute level of expression was low relative to Tet-on. Consequently, actin5C-GS multi-insert chromosomes were generated and higher-level expression was achieved without increased background. Moderate level over-expression of MnSOD has beneficial effects on life span. Here high-level over-expression of MnSOD was found to have toxic effects. In contrast, motor-neuron-specific over-expression of MnSOD had no detectable effect on life span. The results suggest that motor-neuron tissue is not the essential tissue for either MnSOD induced longevity or toxicity in adult males.

Indexed as

AnimalsAnimals, Genetically ModifiedDoxycyclineDrosophila melanogasterFemaleGene ExpressionGenetic TechniquesLac OperonLongevityMaleMifepristoneMutationNervous SystemSuperoxide DismutaseDoxycyclineMifepristoneSuperoxide Dismutase

Identifiers

PMID17349761
PMCPMC1992522
OpenAlexW2132185978

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.