Evidence map›Paper›PMID 17107342›Full record

ArticleThe Biochemical journal2007

A novel role for Oct-2 in the lipopolysaccharide-mediated induction of resistin gene expression in RAW264.7 cells.

Shao-Chun Lu, Shwu-Fen Chang, Hui-Ling Chen, Yuan-Yi Chou, Ya-Hsin Lan, Chia-Ying Chuang, Wei-Hsuan Yu, Chia-Lin Chen

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

3 citing papers in PubMed, 11 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Shao-Chun LuDepartment of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Shwu-Fen Chang
Hui-Ling Chen
Yuan-Yi Chou
Ya-Hsin Lan
Chia-Ying Chuang
Wei-Hsuan Yu
Chia-Lin Chen
National Taiwan University · TWNational Taiwan University Hospital · TWTaipei Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although resistin was first suggested as a possible link between obesity and diabetes, we have demonstrated previously that expression of resistin is induced by LPS (lipopolysaccharide). In the present study, we showed that LPS increased levels of resistin mRNA and promoter activity in murine RAW264.7 macrophages. Investigation of cis-regulatory elements in the mouse resistin promoter required for LPS-mediated induction showed that an Octamer (ATTTGCAT) element, located at -914 to -907, was required for maximal promoter activity in response to LPS stimulation. Co-transfection of RAW264.7 cells with a resistin promoter-luciferase construct and an Oct-1 or Oct-2 expression plasmid (pCG-Oct-1 or pCG-Oct-2) showed that Oct-2, but not Oct-1, activated the resistin promoter upon LPS treatment. Binding of Oct-2 to the Octamer element was demonstrated by supershift DNA-affinity precipitation and chromatin immunoprecipitation assays. Reverse transcription-PCR and Western blot results showed that levels of Oct-2 mRNA and protein were both up-regulated by LPS in RAW264.7 cells. The LPS-induced increase in Oct-2 protein was inhibited by LY294002 (a phosphoinositide 3-kinase inhibitor) post-transcriptionally, and the inhibition also resulted in a lower response of both resistin mRNA and promoter activity to LPS treatment. Moreover, specific knockdown of Oct-2 by RNA interference impaired the LPS-induced increase in resistin mRNA and promoter activity. Together, these results indicate that Oct-2 is involved in the LPS-mediated induction of resistin gene expression in macrophages and suggest that activation of Oct-2 is a part of LPS signalling pathways in macrophages.

Indexed as

5' Flanking RegionAnimalsBase SequenceCell LineChromonesGene ExpressionLipopolysaccharidesMacrophagesMiceMolecular Sequence DataMorpholinesMutagenesisNitric Oxide Synthase Type IIOctamer Transcription Factor-2Promoter Regions, GeneticProtein Binding2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneChromonesLipopolysaccharidesMorpholinesNitric Oxide Synthase Type IIOctamer Transcription Factor-2ResistinRetn protein, mouseRNA, MessengerTrans-Activators

Identifiers

PMID17107342
PMCPMC1798441
OpenAlexW2152996464

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.