Evidence map›Paper›PMID 20861022›Full record

ArticleThe Journal of biological chemistry2010

AMP-activated protein kinase (AMPK) negatively regulates Nox4-dependent activation of p53 and epithelial cell apoptosis in diabetes.

Assaad A Eid, Bridget M Ford, Karen Block, Balakuntalam S Kasinath, Yves Gorin, Goutam Ghosh-Choudhury, Jeffrey L Barnes, Hanna E Abboud

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 159 papers.

0numbers the graph read from it
0cells of the map it votes in
159citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

159 citing papers in PubMed, 248 citations in OpenAlex.

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  20. A Review ofMolecules (Basel, Switzerland) · 2023
    Review

99 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Assaad A EidDepartment of Medicine, University of Texas Health Science Center, San Antonio, Texas 78229-3900, USA.
Bridget M Ford
Karen Block
Balakuntalam S Kasinath
Yves Gorin
Goutam Ghosh-Choudhury
Jeffrey L Barnes
Hanna E Abboud
The University of Texas Health Science Center at San Antonio · US

Funding

Transgenic Animal and Morphology CoreP50DK061597 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI HASTY, EDWARD PAUL · 2003 to 2007
$5.0M
Mechanism of Renal Cell Injury in DiabetesR01DK050190 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GHOSH CHOUDHURY, GOUTAM · 2004 to 2013
$2.3M
Mechanism of eNOS Uncoupling in the Renal MicrovasculatureR01DK079996 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI GORIN, YVES CLAUDE · 2010 to 2014
$1.5M
Cellular Mechanisms of Renal Interstitial FibrosisR01DK080106 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI BARNES, JEFFREY L · 2010 to 2014
$1.3M
Novel mechanisms of diabetic nephropathyR01DK077295 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI KASINATH, BALAKUNTALAM S · 2007 to 2011
$1.3M
Renal Cell Response in DiabetesR01DK078971 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI ABBOUD, HANNA E · 2008 to 2012
$1.2M
Mechanisms of Renal CarcinogenesisR01CA131272 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI BLOCK, KAREN · 2008 to 2011
$907k
NCI NIH HHS CA131272NCI NIH HHS R01 CA131272NIDDK NIH HHS DK061597NIDDK NIH HHS DK-R01-078971NIDDK NIH HHS P50 DK061597NIDDK NIH HHS R01 DK050190NIDDK NIH HHS R01 DK077295NIDDK NIH HHS R01 DK078971NIDDK NIH HHS R01 DK079996NIDDK NIH HHS R01 DK080106NIDDK NIH HHS R01 DK50190
6 · The paper itself

Abstract

Diabetes and high glucose (HG) increase the generation of NADPH oxidase-derived reactive oxygen species and induce apoptosis of glomerular epithelial cells (podocytes). Loss of podocytes contributes to albuminuria, a major risk factor for progression of kidney disease. Here, we show that HG inactivates AMP-activated protein kinase (AMPK), up-regulates Nox4, enhances NADPH oxidase activity, and induces podocyte apoptosis. Activation of AMPK blocked HG-induced expression of Nox4, NADPH oxidase activity, and apoptosis. We also identified the tumor suppressor protein p53 as a mediator of podocyte apoptosis in cells exposed to HG. Inactivation of AMPK by HG up-regulated the expression and phosphorylation of p53, and p53 acted downstream of Nox4. To investigate the mechanism of podocyte apoptosis in vivo, we used OVE26 mice, a model of type 1 diabetes. Glomeruli isolated from these mice showed decreased phosphorylation of AMPK and enhanced expression of Nox4 and p53. Pharmacologic activation of AMPK by 5-aminoimidazole-4-carboxamide-1-riboside in OVE26 mice attenuated Nox4 and p53 expression. Administration of 5-aminoimidazole-4-carboxamide-1-riboside also prevented renal hypertrophy, glomerular basement thickening, foot process effacement, and podocyte loss, resulting in marked reduction in albuminuria. Our results uncover a novel function of AMPK that integrates metabolic input to Nox4 and provide new insight for activation of p53 to induce podocyte apoptosis. The data indicate the potential therapeutic utility of AMPK activators to block Nox4 and reactive oxygen species generation and to reduce urinary albumin excretion in type 1 diabetes.

Indexed as

ApoptosisDown-RegulationAMP-Activated Protein KinasesAnimalsDiabetes MellitusDisease Models, AnimalFemaleGene Expression RegulationGlucoseHumansMaleMiceNADPH Oxidase 4NADPH OxidasesPhosphorylationPodocytesAMP-Activated Protein KinasesGlucoseNADPH Oxidase 4NADPH OxidasesNox4 protein, mouseTumor Suppressor Protein p53

Identifiers

PMID20861022
PMCPMC2988355
OpenAlexW2049368067

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.