Evidence map›Paper›PMID 17932511›Full record

ArticleEMBO reports2007

Tripeptidyl peptidase II promotes fat formation in a conserved fashion.

Renée M McKay, James P McKay, Jae Myoung Suh, Leon Avery, Jonathan M Graff

Open access · bronzeAbstract read
In one paragraph

Article in EMBO reports, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.8field-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

19 citing papers in PubMed, 33 citations in OpenAlex.

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  11. Neuropeptide GPCRs in C. elegans.Frontiers in endocrinology · 2012
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  17. Life-span extension by dietary restriction is mediated by NLP-7 signaling and coelomocyte endocytosis in C. elegans.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2010
    Article
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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

5 authors at 1 institution in 1 country.

Renée M McKayDepartment of Developmental Biology, UT Southwestern Medical Center, Dallas, TX 75390-9113, USA.
James P McKay
Jae Myoung Suh
Leon Avery
Jonathan M Graff
The University of Texas Southwestern Medical Center · US

Funding

Genetics of nematode pharyngeal muscle excitabilityR37HL046154 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI AVERY, LEON · 2004 to 2013
$2.8M
NHLBI NIH HHS R37 HL046154
6 · The paper itself

Abstract

Tripeptidyl peptidase II (TPPII) is a multifunctional and evolutionarily conserved protease. In the mammalian hypothalamus, TPPII has a proposed anti-satiety role affected by degradation of the satiety hormone cholecystokinin 8. Here, we show that TPPII also regulates the metabolic homoeostasis of Caenorhabditis elegans; TPPII RNA interference (RNAi) decreases worm fat stores. However, this occurs independently of feeding behaviour and seems to be a function within fat-storing tissues. In mammalian cell culture, TPPII stimulates adipogenesis and TPPII RNAi blocks adipogenesis. The pro-adipogenic action of TPPII seems to be independent of protease function, as catalytically inactive TPPII also increases adipogenesis. Mice that were homozygous for an insertion in the Tpp2 locus were embryonic lethal. However, Tpp2 heterozygous mutants were lean compared with wild-type littermates, although food intake was normal. These findings indicate that TPPII has central and peripheral roles in regulating metabolism and that TPPII actions in fat-storing tissues might be an ancient function carried out in a protease-independent manner.

Indexed as

3T3-L1 CellsAdipogenesisAdipose TissueAminopeptidasesAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCholecystokininDipeptidyl-Peptidases and Tripeptidyl-PeptidasesHeterozygoteLipid MetabolismMiceMutationPeptide FragmentsReceptors, CholecystokininRNA InterferenceAminopeptidasesCaenorhabditis elegans ProteinsCholecystokinincholecystokinin 8Dipeptidyl-Peptidases and Tripeptidyl-PeptidasesPeptide FragmentsReceptors, CholecystokininSerine Endopeptidasestripeptidyl-peptidase 2

Identifiers

PMID17932511
PMCPMC2267238
OpenAlexW2152735843

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.