Evidence map›Paper›PMID 22926402›Full record

ArticleMolecular and cellular biochemistry2012

Overexpression of actin-depolymerizing factor blocks oxidized low-density lipoprotein-induced mouse brain microvascular endothelial cell barrier dysfunction.

Jun Wang, Lu Sun, Yan-Fang Si, Bao-Min Li

Abstract read
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In one paragraph

Article in Molecular and cellular biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed, 20 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

4 authors at 2 institutions in 1 country.

Jun WangDepartment of Neurosurgery, The General Hospital of PLA, 28 Fuxing Road, Beijing 100853, China.
Lu Sun
Yan-Fang Si
Bao-Min Li
The Military General Hospital of Beijing PLA · CNThe 309th Hospital of Chinese People's Liberation Army · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of present work was to elucidate the role of actin-depolymerizing factor (ADF), an important regulator of actin cytoskeleton, in the oxidized low-density lipoprotein (ox-LDL)-induced blood-brain barrier (BBB) disruption. The primary mouse brain microvascular endothelial cells (MBMECs) were exposed to ox-LDL. Treatment with LDL served as control. It was found that ADF mRNA level and protein expression were decreased when exposed to ox-LDL in MBMECs. Then, we investigated the influence of ADF overexpression on ox-LDL-treated MBMECs. Structurally, overexpression of ADF inhibited ox-LDL-induced F-actin formation. Functionally, overexpression of ADF attenuated ox-LDL-induced disruption of endothelial barrier marked by restoration of transendothelial electrical resistance, permeability of Evans Blue and expression of tight junction-associated proteins including ZO-1 and occludin, and blocked ox-LDL-induced oxidative stress marked by inhibition of reactive oxygen species (ROS) formation and activity of NADPH oxidase and Nox2 expression. However, overexpression of ADF in control cells had no significant effect on endothelial permeability and ROS formation. In conclusion, overexpression of ADF blocks ox-LDL-induced disruption of endothelial barrier. In addition, siRNA-mediated downregulation of ADF expression aggravated ox-LDL-induced disruption of endothelial barrier and ROS formation. These findings identify ADF as a key signaling molecule in the regulation of BBB integrity and suggest that ADF might be used as a target to modulate diseases accompanied by ox-LDL-induced BBB compromise.

Indexed as

ActinsAnimalsBlood-Brain BarrierCells, CulturedDestrinDown-RegulationEndothelial CellsLipoproteins, LDLMiceNADPH OxidasesOccludinOxidative StressReactive Oxygen SpeciesRNA, Small InterferingTransfectionZonula Occludens-1 ProteinActinsDestrinDstn protein, mouseLipoproteins, LDLNADPH OxidasesOccludinOcln protein, mouseoxidized low density lipoproteinReactive Oxygen SpeciesRNA, Small InterferingTjp1 protein, mouseZonula Occludens-1 Protein

Identifiers

PMID22926402
OpenAlexW2041581222

What OpenQuestion holds

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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.