Evidence map›Paper›PMID 21415860›Full record

ArticleCell death and differentiation2011

Phospholipase A(2) of peroxiredoxin 6 has a critical role in tumor necrosis factor-induced apoptosis.

S Y Kim, E Chun, K-Y Lee

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 55 citations in OpenAlex.

  1. AA-Induced Lipid Peroxidation at the Center of Tumor Cell Apoptosis and Ferroptosis.Reviews of physiology, biochemistry and pharmacology · 2027
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. The Role of Peroxiredoxin 6 in Cell Signaling.Antioxidants (Basel, Switzerland) · 2018
    Review
  10. The phospholipase AJournal of lipid research · 2018
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Exploratory proteomic analysis of hypobaric hypoxia and acute mountain sickness in humans.Journal of applied physiology (Bethesda, Md. : 1985) · 2014
    Article
  20. 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

3 authors at 3 institutions in 2 countries.

S Y KimDepartment of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Korea.
E Chun
K-Y Lee
Harvard University · USSamsung (South Korea) · KRSungkyunkwan University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Peroxiredoxin 6 (Prdx6) is a bifunctional enzyme with peroxidase and phospholipase A(2) (PLA(2)) activities. Although the cellular function of the peroxidase of Prdx6 has been well elucidated, the function of the PLA(2) of Prdx6 is largely unknown. Here, we report a novel function for the PLA(2) in regulating TNF-induced apoptosis through arachidonic acid (AA) release and interleukin-1β (IL-1β) production. Prdx6 knockdown (Prdx6(KD)) in human bronchial epithelial cells (BEAS2B) shows severe decreases of peroxidase and PLA(2) activities. Surprisingly, Prdx6(KD) cells are markedly resistant to apoptosis induced by TNF-α in the presence of cycloheximide, but are highly sensitive to hydrogen peroxide-induced apoptosis. Furthermore, the release of AA and the production of IL-1β induced by proinflammatory stimuli, such as TNF-α, LPS, and poly I/C, are severely decreased in Prdx6(KD) cells. More interestingly, the restoration of Prdx6 expression with wild-type Prdx6, but not PLA(2)-mutant Prdx6 (S32A), in Prdx6(KD) cells dramatically induces the recovery of TNF-induced apoptosis, AA release, and IL-1β production, indicating specific roles for the PLA(2) activity of Prdx6. Our results provide new insights into the distinct roles of bifunctional Prdx6 with peroxidase and PLA(2) activities in oxidative stress-induced and TNF-induced apoptosis, respectively.

Indexed as

ApoptosisArachidonic AcidCaspase 3Caspase 8Cell CycleCell LineDNA FragmentationHumansImmunoblottingInterleukin-1betaInterleukin-6Oligonucleotide Array Sequence AnalysisPeroxiredoxin VIPhospholipases A2Tumor Necrosis Factor-alphaArachidonic AcidCaspase 3Caspase 8Interleukin-1betaInterleukin-6Peroxiredoxin VIPhospholipases A2Tumor Necrosis Factor-alpha

Identifiers

PMID21415860
PMCPMC3172113
OpenAlexW2111165466

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.