Evidence map›Paper›PMID 30511458›Full record

ArticleAging cell2019

Drosophila insulin-like peptide dilp1 increases lifespan and glucagon-like Akh expression epistatic to dilp2.

Stephanie Post, Sifang Liao, Rochele Yamamoto, Jan A Veenstra, Dick R Nässel, Marc Tatar

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

40 citing papers in PubMed, 61 citations in OpenAlex.

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  14. Sex-biased gene expression in nutrient-sensing pathways.Proceedings. Biological sciences · 2023
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  18. Nutrient Sensing via Gut inInternational journal of molecular sciences · 2022
    Review
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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

6 authors at 3 institutions in 3 countries.

Stephanie PostDepartment of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island.
Sifang LiaoDepartment of Zoology, Stockholm University, Stockholm, Sweden.
Rochele YamamotoDepartment of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island.
Jan A VeenstraInstitut de Neurosciences Cognitives et Intégratives d'Aquitaine (CNRS UMR5287), University of Bordeaux, Pessac, France.
Dick R NässelDepartment of Zoology, Stockholm University, Stockholm, Sweden.
Marc TatarDepartment of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island.
Brown University · USStockholm University · SEUniversité de Bordeaux · FR

Funding

FUNCTIONS AND INTERACTIONS DFOXO IN DROSOPHILA AGINGR37AG024360 · NIA · BROWN UNIVERSITY · PI TATAR, MARC · 2011 to 2020
$4.5M
Predoctoral Training in the Molecular Biology of AgingT32AG041688 · NIA · BROWN UNIVERSITY · PI NICOLA NERETTI, John M Sedivy · 2012 to 2026
$3.5M
American Federation of Aging Research GR5290420NIA NIH HHS R37 AG024360NIA NIH HHS T32 AG041688Swedish Research Council 2015-04626
6 · The paper itself

Abstract

Insulin/IGF signaling (IIS) regulates essential processes including development, metabolism, and aging. The Drosophila genome encodes eight insulin/IGF-like peptide (dilp) paralogs, including tandem-encoded dilp1 and dilp2. Many reports show that longevity is increased by manipulations that decrease DILP2 levels. It has been shown that dilp1 is expressed primarily in pupal stages, but also during adult reproductive diapause. Here, we find that dilp1 is also highly expressed in adult dilp2 mutants under nondiapause conditions. The inverse expression of dilp1 and dilp2 suggests these genes interact to regulate aging. Here, we study dilp1 and dilp2 single and double mutants to describe epistatic and synergistic interactions affecting longevity, metabolism, and adipokinetic hormone (AKH), the functional homolog of glucagon. Mutants of dilp2 extend lifespan and increase Akh mRNA and protein in a dilp1-dependent manner. Loss of dilp1 alone has no impact on these traits, whereas transgene expression of dilp1 increases lifespan in dilp1 - dilp2 double mutants. On the other hand, dilp1 and dilp2 redundantly or synergistically interact to control circulating sugar, starvation resistance, and compensatory dilp5 expression. These interactions do not correlate with patterns for how dilp1 and dilp2 affect longevity and AKH. Thus, repression or loss of dilp2 slows aging because its depletion induces dilp1, which acts as a pro-longevity factor. Likewise, dilp2 regulates Akh through epistatic interaction with dilp1. Akh and glycogen affect aging in Caenorhabditis elegans and Drosophila. Our data suggest that dilp2 modulates lifespan in part by regulating Akh, and by repressing dilp1, which acts as a pro-longevity insulin-like peptide.

Indexed as

Epistasis, GeneticGene Expression RegulationAnimalsDrosophila melanogasterDrosophila ProteinsInsulinJuvenile HormonesLongevityMutationPhenotypeRNA, MessengerSignal TransductionSomatomedinsDrosophila ProteinsInsulinJuvenile HormonesRNA, MessengerSomatomedinsagingAkhdilp1dilp2Drosophilainsulininsulin/IGF signaling

Identifiers

PMID30511458
PMCPMC6351851
OpenAlexW2951443489

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.