Evidence map›Paper›PMID 34900085›Full record

ArticleOxidative medicine and cellular longevity2021

p53 Inhibition Protects against Neuronal Ischemia/Reperfusion Injury by the p53/PRAS40/mTOR Pathway.

Jianlan Zhao, Yinhui Dong, Xingyu Chen, Xiao Xiao, Bo Tan, Gong Chen, Jin Hu, Dashi Qi, Xiaomu Li, Rong Xie

Abstract read
In one paragraph

Article in Oxidative medicine and cellular longevity, 2021. 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
–field-weighted citation impact
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.

  1. Pooled it
  2. Effect ofPharmaceuticals (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Article
  5. ALDH2 activation attenuates oxygen-glucose deprivation/reoxygenation-induced cell apoptosis, pyroptosis, ferroptosis and autophagy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2023
    Article
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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.

Jianlan ZhaoDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0001-6178-2470
Yinhui DongDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0002-7813-8996
Xingyu ChenDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0002-7296-0196
Xiao XiaoDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0003-1816-775X
Bo TanDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0003-3906-0652
Gong ChenDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0002-8036-3391
Jin HuDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0002-8907-8028
Dashi QiCenter for Clinical Research and Translational Medicine, Department of Neurology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China.ORCID https://orcid.org/0000-0002-0614-7068
Xiaomu LiDepartment of Endocrinology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China.ORCID https://orcid.org/0000-0001-8337-0207
Rong XieDepartment of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China.ORCID https://orcid.org/0000-0003-1889-915X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The underlying mechanisms of cerebral ischemia/reperfusion (I/R) injury are unclear. Within this study, we aimed to explore whether p53 inhibition exerts protective effects via the p53/PRAS40/mTOR pathway after stroke and its potential mechanism. Both an in vitro oxygen-glucose deprivation (OGD) model with a primary neuronal culture and in vivo stroke models (dMCAO or MCAO) were used. We found that the infarction size, neuronal apoptosis, and autophagy were less severe in p53 KO mice and p53 KO neurons after cerebral I/R or OGD/R injury. By activating the mTOR pathway, p53 knockdown alleviated cerebral I/R injury both in vitro and in vivo. When PRAS40 was knocked out, the regulatory effects of p53 overexpression or knockdown against stroke disappeared. PRAS40 knockdown could inhibit the activities of the mTOR pathway; moreover, neuronal autophagy and apoptosis were exacerbated by PRAS40 knockdown. To sum up, in this study, we showed p53 inhibition protects against neuronal I/R injury after stroke via the p53/PRAS40/mTOR pathway, which is a novel and pivotal cerebral ischemic injury signaling pathway. The induction of neuronal autophagy and apoptosis by the p53/PRAS40/mTOR pathway may be the potential mechanism of this protective effect.

Indexed as

AnimalsApoptosisCells, CulturedMaleMiceMice, Inbred C57BLMice, KnockoutNeuronsPhosphoproteinsRatsRats, Sprague-DawleyReperfusion InjuryRNA InterferenceRNA, Small InterferingSignal TransductionTOR Serine-Threonine KinasesPhosphoproteinsproline-rich Akt substrate, 40 kDa protein, mouseRNA, Small InterferingTOR Serine-Threonine KinasesTumor Suppressor Protein p53

Identifiers

PMID34900085
PMCPMC8664552

What Socratic 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 Socratic graph.