Evidence map›Paper›PMID 26539913›Full record

ArticleCell death & disease2015

The point mutation UCH-L1 C152A protects primary neurons against cyclopentenone prostaglandin-induced cytotoxicity: implications for post-ischemic neuronal injury.

H Liu, W Li, M E Rose, R W Hickey, J Chen, G T Uechi, M Balasubramani, B W Day, K V Patel, S H Graham

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  3. Abolishing UCHL1's hydrolase activity exacerbates ischemia-induced axonal injury and functional deficits in mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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  12. Role of UCHL1 in axonal injury and functional recovery after cerebral ischemia.Proceedings of the National Academy of Sciences of the United States of America · 2019
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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 3 institutions in 1 country.

H LiuGeriatric Research Educational and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.
W LiGeriatric Research Educational and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.
M E RoseGeriatric Research Educational and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.
R W HickeyDepartment of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
J ChenDepartment of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
G T UechiGenomics and Proteomics Core Laboratories, University of Pittsburgh, Pittsburgh, PA, USA.
M BalasubramaniGenomics and Proteomics Core Laboratories, University of Pittsburgh, Pittsburgh, PA, USA.
B W DayGenomics and Proteomics Core Laboratories, University of Pittsburgh, Pittsburgh, PA, USA.
K V PatelDepartment of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
S H GrahamGeriatric Research Educational and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.
University of Pittsburgh · USCore Laboratories (United States) · USVA Pittsburgh Healthcare System · US

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI JOHN C. BYRD · 1988 to 2026
$158.0M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
Role of CyPgs UCHL1 in Ischemic Injury and RecoveryR01NS037459 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GRAHAM, STEVEN H · 1999 to 2018
$5.4M
REGULATION OF TRANSMITTER RELEASE IN THE DORSAL HORNR01NS037549 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MACDERMOTT, AMY B · 1998 to 2001
$418k
NCATS NIH HHS UL1 TR000005NCI NIH HHS P30 CA047904NCI NIH HHS P30CA047904NINDS NIH HHS R01 NS037459NINDS NIH HHS R01NS37549
6 · The paper itself

Abstract

Cyclopentenone prostaglandins (CyPGs), such as 15-deoxy-Δ(12,14)-prostaglandin J2 (15dPGJ2), are reactive prostaglandin metabolites exerting a variety of biological effects. CyPGs are produced in ischemic brain and disrupt the ubiquitin-proteasome system (UPS). Ubiquitin-C-terminal hydrolase L1 (UCH-L1) is a brain-specific deubiquitinating enzyme that has been linked to neurodegenerative diseases. Using tandem mass spectrometry (MS) analyses, we found that the C152 site of UCH-L1 is adducted by CyPGs. Mutation of C152 to alanine (C152A) inhibited CyPG modification and conserved recombinant UCH-L1 protein hydrolase activity after 15dPGJ2 treatment. A knock-in (KI) mouse expressing the UCH-L1 C152A mutation was constructed with the bacterial artificial chromosome (BAC) technique. Brain expression and distribution of UCH-L1 in the KI mouse was similar to that of wild type (WT) as determined by western blotting. Primary cortical neurons derived from KI mice were resistant to 15dPGJ2 cytotoxicity compared with neurons from WT mice as detected by the WST-1 cell viability assay and caspase-3 and poly ADP ribose polymerase (PARP) cleavage. This protective effect was accompanied with significantly less ubiquitinated protein accumulation and aggregation as well as less UCH-L1 aggregation in C152A KI primary neurons after 15dPGJ2 treatment. Additionally, 15dPGJ2-induced axonal injury was also significantly attenuated in KI neurons as compared with WT. Taken together, these studies indicate that UCH-L1 function is important in hypoxic neuronal death, and the C152 site of UCH-L1 has a significant role in neuronal survival after hypoxic/ischemic injury.

Indexed as

Point MutationAnimalsBinding SitesBrain IschemiaCyclopentanesFemaleMaleMiceMice, Inbred C57BLMice, TransgenicNeuronsProstaglandinsRatsUbiquitin ThiolesteraseCyclopentanescyclopentenoneProstaglandinsUbiquitin ThiolesteraseUchl1 protein, mouse

Identifiers

PMID26539913
PMCPMC4670930
OpenAlexW1943422254

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.