Evidence map›Paper›PMID 22207314›Full record

ArticleAging2011

GSTT1 is upregulated by oxidative stress through p38-MK2 signaling pathway in human granulosa cells: possible association with mitochondrial activity.

Megumu Ito, Misa Imai, Miho Muraki, Kenji Miyado, Junwen Qin, Shigeru Kyuwa, Yasuhiro Yoshikawa, Yoshihiko Hosoi, Hidekazu Saito, Yuji Takahashi

Open access · hybridAbstract read
In one paragraph

Article in Aging, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  9. Journal of Cancer · 2016
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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.

Megumu ItoDivision of Reproductive Medicine, Department of Perinatal Medicine and Maternal Care, National Center for Child Health and Development, Tokyo, Japan.
Misa Imai
Miho Muraki
Kenji Miyado
Junwen Qin
Shigeru Kyuwa
Yasuhiro Yoshikawa
Yoshihiko Hosoi
Hidekazu Saito
Yuji Takahashi
National Center For Child Health and Development · JPThe University of Tokyo · JPJinan University · CNKindai University · JPTufts University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We previously reported that GSTT1 was upregulated in human granulosa cells during aging and that activation and localization of p38 MAPK was changed in parallel. Although oxidative stress is responsible for these changes, the age-associated expression of GSTT1 regulated by MAPKs and the role of GSTT1 in aged granulosa cells remain unclear. Therefore, we examined the relationship between the expression of GSTT1 and MAPK signaling pathways using human granulosa-like KGN cells stimulated with H(2)O(2) in the presence or absence of various MAPK inhibitors. Interestingly, H(2)O(2)-induced GSTT1 was only inhibited by a p38 inhibitor. An inhibitor of MK2, a downstream regulator of p38, also diminished H(2)O(2)-induced GSTT1 upregulation. Notably, both p38 and MK2 were significantly inactivated in cells carrying an shRNA construct of GSTT1 (∆GSTT1 cells), suggesting that the p38-MK2 pathway is essential for age-associated upregulation of GSTT1. The relevance of GSTT1 in mitochondrial activity was then determined. ∆GSTT1 cells displayed enhanced polarization of mitochondrial membrane potential without increasing the apoptosis, suggesting that the age-associated upregulation of GSTT1 may influence the mitochondrial activity of granulosa cells.

Indexed as

Up-RegulationApoptosisFemaleGlutathione TransferaseGranulosa CellsHumansMAP Kinase Signaling SystemMitochondriaOxidative Stressp38 Mitogen-Activated Protein Kinasesglutathione S-transferase T1Glutathione Transferasep38 Mitogen-Activated Protein Kinases

Identifiers

PMID22207314
PMCPMC3273902
OpenAlexW2170064963

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.