Evidence map›Paper›PMID 19135121›Full record

ArticleToxicology2009

The effects of acrolein on peroxiredoxins, thioredoxins, and thioredoxin reductase in human bronchial epithelial cells.

Charles R Myers, Judith M Myers

Open access · greenAbstract read
In one paragraph

Article in Toxicology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 53 citations in OpenAlex.

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  17. Honokiol protects osteoblastic MC3T3-E1 cells against antimycin A-induced cytotoxicity.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2011
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  18. Article
  19. Review
  20. Effects of hyperoxia on cytoplasmic thioredoxin system in alveolar type epithelial cells of premature rats.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2011
    Article
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

2 authors at 1 institution in 1 country.

Charles R MyersDepartment of Pharmacology and Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.
Judith M Myers
Medical College of Wisconsin · US

Funding

Human Lung Chromium Toxicity: Role of cytochrome b5R01ES012707 · NIEHS · MEDICAL COLLEGE OF WISCONSIN · PI MYERS, CHARLES R · 2004 to 2007
$1.3M
Human Lung Chromium Toxicity: Oxidant StressR56ES012707 · NIEHS · MEDICAL COLLEGE OF WISCONSIN · PI MYERS, CHARLES R · 2010 to 2010
$228k
NIEHS NIH HHS ES012707NIEHS NIH HHS R01 ES012707NIEHS NIH HHS R56 ES012707
6 · The paper itself

Abstract

Inhalation is a common form of exposure to acrolein, a toxic reactive volatile aldehyde that is a ubiquitous environmental pollutant. Bronchial epithelial cells would be directly exposed to inhaled acrolein. The thioredoxin (Trx) system is essential for the maintenance of cellular thiol redox balance, and is critical for cell survival. Normally, thioredoxin reductase (TrxR) maintains the cytosolic (Trx1) and mitochondrial (Trx2) thioredoxins in the reduced state, and the thioredoxins keep the peroxiredoxins (Prx) reduced, thereby supporting their peroxidase function. The effects of acrolein on TrxR, Trx and Prx in human bronchial epithelial (BEAS-2B) cells were determined. A 30-min exposure to 5 microM acrolein oxidized both Trx1 and Trx2, although significant effects were noted for Trx1 at even lower acrolein concentrations. The effects on Trx1 and Trx2 could not be reversed by treatment with disulfide reductants. TrxR activity was inhibited 60% and >85% by 2.5 and 5 microM acrolein, respectively. The endogenous electron donor for TrxR, NADPH, could not restore its activity, and activity did not recover in cells during a 4-h acrolein-free period in complete medium. The effects of acrolein on TrxR and Trx therefore extend beyond the duration of exposure. While there was a strong correlation between TrxR inhibition and Trx1 oxidation, the irreversible effects on Trx1 suggest direct effects of acrolein rather than loss of reducing equivalents from TrxR. Trx2 did not become oxidized until > or = 90% of TrxR was inhibited, but irreversible effects on Trx2 also suggest direct effects of acrolein. Prx1 (cytosolic) and Prx3 (mitochondrial) shifted to a largely oxidized state only when >90 and 100% of their respective Trxs were oxidized. Prx oxidation was readily reversed with a disulfide reductant, suggesting that Prx oxidation resulted from lack of reducing equivalents from Trx and not direct reaction with acrolein. The effects of acrolein on the thioredoxin system and peroxiredoxins could have important implications for cell survival, redox-sensitive cell signaling, and tolerance to other oxidant insults.

Indexed as

AcroleinAir PollutantsBronchiCells, CulturedDisulfidesDose-Response Relationship, DrugEnzyme InhibitorsEpithelial CellsHumansMitochondrial ProteinsOxidation-ReductionPeroxiredoxin IIIPeroxiredoxinsThioredoxin-Disulfide ReductaseThioredoxinsAcroleinAir PollutantsDisulfidesEnzyme InhibitorsMitochondrial ProteinsPeroxiredoxin IIIPeroxiredoxinsPRDX1 protein, humanPRDX3 protein, humanThioredoxin-Disulfide ReductaseThioredoxinsTXN2 protein, human

Identifiers

PMID19135121
PMCPMC2668956
OpenAlexW2005136146

What OpenQuestion holds

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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.