Evidence map›Paper›PMID 28992163›Full record

ArticleJournal of molecular cell biology2017

Pak1 mediates the stimulatory effect of insulin and curcumin on hepatic ChREBP expression.

Kejing Zeng, Lili Tian, Adam Sirek, Weijuan Shao, Ling Liu, Yu-Ting Chiang, Jonathan Chernoff, Dominic S Ng, Jianping Weng, Tianru Jin

Open access · bronzeAbstract read
In one paragraph

Article in Journal of molecular cell biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 19 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

10 authors at 5 institutions in 3 countries.

Kejing ZengDepartment of Endocrinology and Metabolism, the Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, China.
Lili TianToronto General Research Institutes, University Health Network, Toronto, Canada.
Adam SirekDepartment of Physiology, Faculty of Medicine, University of Toronto, Toronto, Canada.
Weijuan ShaoToronto General Research Institutes, University Health Network, Toronto, Canada.
Ling LiuToronto General Research Institutes, University Health Network, Toronto, Canada.
Yu-Ting ChiangDepartment of Physiology, Faculty of Medicine, University of Toronto, Toronto, Canada.
Jonathan ChernoffCancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA, USA.
Dominic S NgDepartment of Physiology, Faculty of Medicine, University of Toronto, Toronto, Canada.
Jianping WengDepartment of Endocrinology and Metabolism, the Third Affiliated Hospital of Sun Yat-Sen University and Guangdong Provincial Key Laboratory of Diabetology, Guangzhou, China.
Tianru JinToronto General Research Institutes, University Health Network, Toronto, Canada.
University Health Network · CASun Yat-sen University · CNUniversity of Toronto · CAFox Chase Cancer Center · USSt. Michael's Hospital · CA

Funding

Targeting the Kinome in Neurofibromatosis type 1R01CA142928 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI CHERNOFF, JONATHAN · 2010 to 2019
$3.9M
NCI NIH HHS R01 CA142928
6 · The paper itself

Abstract

Insulin can stimulate hepatic expression of carbohydrate-responsive element-binding protein (ChREBP). As recent studies revealed potential metabolic beneficial effects of ChREBP, we asked whether its expression can also be regulated by the dietary polyphenol curcumin. We also aimed to determine mechanisms underlying ChREBP stimulation by insulin and curcumin. The effect of insulin on ChREBP expression was assessed in mouse hepatocytes, while the effect of curcumin was assessed in mouse hepatocytes and with curcumin gavage in mice. Chemical inhibitors for insulin signaling molecules were utilized to identify involved signaling molecules, and the involvement of p21-activated protein kinase 1 (Pak1) was determined with its chemical inhibitor and Pak1-/- hepatocytes. We found that both insulin and curcumin-stimulated ChREBP expression in Akt-independent but MEK/ERK-dependent manner, involving the inactivation of the transcriptional repressor Oct-1. Aged Pak1-/- mice showed reduced body fat volume. Pak1 inhibition or its genetic deletion attenuated the stimulatory effect of insulin or curcumin on ChREBP expression. Our study hence suggests the existence of a novel signaling cascade Pak1/MEK/ERK/Oct-1 for both insulin and curcumin in exerting their glucose-lowering effect via promoting hepatic ChREBP production, supports the recognition of beneficial functions of ChREBP, and brings us a new overview on dietary polyphenols.

Indexed as

AnimalsBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsCurcuminGene Expression RegulationGene Knockout TechniquesHepatocytesHep G2 CellsHumansInsulinMaleMiceNuclear ProteinsOctamer Transcription Factor-1p21-Activated KinasesProto-Oncogene Proteins c-aktTranscription FactorsBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsCurcuminInsulinMlxipl protein, mouseNuclear ProteinsOctamer Transcription Factor-1p21-Activated KinasesPak1 protein, mousePou2f1 protein, mouseProto-Oncogene Proteins c-aktTranscription FactorsAktChREBPcurcumindietary polyphenol interventioninsulinOct-1Pak1

Identifiers

PMID28992163
PMCPMC5907843
OpenAlexW2748885995

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.