Evidence map›Paper›PMID 25187989›Full record

ArticlePLoS genetics2014

Obesity-linked homologues TfAP-2 and Twz establish meal frequency in Drosophila melanogaster.

Michael J Williams, Philip Goergen, Jayasimman Rajendran, Galina Zheleznyakova, Maria G Hägglund, Emelie Perland, Sonchita Bagchi, Argyro Kalogeropoulou, Zaid Khan, Robert Fredriksson and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 26% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Activation of the G protein-coupled sulfakinin receptor inhibits blood meal intake in the mosquito Aedes aegypti.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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  13. Glutamine Uptake via SNAT6 and Caveolin Regulates Glutamine-Glutamate Cycle.International journal of molecular sciences · 2021
    Article
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  17. Identification of sulfakinin receptors (SKR) in Tenebrio molitor beetle and the influence of sulfakinins on carbohydrates metabolism.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2020
    Article
  18. Article
  19. Article
  20. Frontiers in cell and developmental biology · 2020
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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

11 authors at 1 institution in 1 country.

Michael J WilliamsFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Philip GoergenFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Jayasimman RajendranFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Galina ZheleznyakovaFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Maria G HägglundFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Emelie PerlandFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Sonchita BagchiFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Argyro KalogeropoulouFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Zaid KhanFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Robert FredrikssonFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Helgi B SchiöthFunctional Pharmacology, Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Uppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In all animals managing the size of individual meals and frequency of feeding is crucial for metabolic homeostasis. In the current study we demonstrate that the noradrenalin analogue octopamine and the cholecystokinin (CCK) homologue Drosulfakinin (Dsk) function downstream of TfAP-2 and Tiwaz (Twz) to control the number of meals in adult flies. Loss of TfAP-2 or Twz in octopaminergic neurons increased the size of individual meals, while overexpression of TfAP-2 significantly decreased meal size and increased feeding frequency. Of note, our study reveals that TfAP-2 and Twz regulate octopamine signaling to initiate feeding; then octopamine, in a negative feedback loop, induces expression of Dsk to inhibit consummatory behavior. Intriguingly, we found that the mouse TfAP-2 and Twz homologues, AP-2β and Kctd15, co-localize in areas of the brain known to regulate feeding behavior and reward, and a proximity ligation assay (PLA) demonstrated that AP-2β and Kctd15 interact directly in a mouse hypothalamus-derived cell line. Finally, we show that in this mouse hypothalamic cell line AP-2β and Kctd15 directly interact with Ube2i, a mouse sumoylation enzyme, and that AP-2β may itself be sumoylated. Our study reveals how two obesity-linked homologues regulate metabolic homeostasis by modulating consummatory behavior.

Indexed as

AnimalsCell LineDrosophila melanogasterDrosophila ProteinsFeedbackFeeding BehaviorHomeostasisHypothalamusMaleMealsMiceMice, Inbred C57BLNeuronsObesityOctopaminePotassium ChannelsDrosophila ProteinsOctopaminePotassium ChannelsTranscription Factor AP-2

Identifiers

PMID25187989
PMCPMC4154645
OpenAlexW2002176215

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.