Evidence map›Paper›PMID 19052872›Full record

ArticleApoptosis : an international journal on programmed cell death2009

Involvement of c-Abl, p53 and the MAP kinase JNK in the cell death program initiated in A2E-laden ARPE-19 cells by exposure to blue light.

Barbro S Westlund, Bolin Cai, Jilin Zhou, Janet R Sparrow

Open access · greenAbstract read
In one paragraph

Article in Apoptosis : an international journal on programmed cell death, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.3field-weighted citation impact, top 40% 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

20 citing papers in PubMed, 44 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Barbro S WestlundDepartment of Ophthalmology, Columbia University, 630 W. 168th Street, New York, NY 10032, USA.
Bolin Cai
Jilin Zhou
Janet R Sparrow
Columbia University · US

Funding

IMPACT OF LIPOFUSCIN IN RETINAL PIGMENT EPITHELIAL CELLSR01EY012951 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SPARROW, JANET RUTHE · 2000 to 2024
$8.9M
NEI NIH HHS EY 12951NEI NIH HHS R01 EY012951
6 · The paper itself

Abstract

The lipofuscin fluorophore A2E has been shown to mediate blue light-induced damage to retinal pigmented epithelial (RPE) cells. To understand the events that lead to RPE cell apoptosis under these conditions, we explored signaling pathways upstream of the cell death program. Human RPE cells (ARPE-19) that had accumulated A2E were exposed to blue light to induce apoptosis and the involvement of the transcription factors p53 and c-Abl and the mitogen activated protein kinases p38 and JNK were examined. We found that A2E/blue light caused upregulation and phosphorylation of c-Abl, and upregulation of p53. Pretreatment with the c-Abl inhibitor STI571 and transfection with siRNA specific to c-Abl and p53 prior to irradiation reduced A2E/blue light-induced cell death. Gene and protein expression of JNK and p38 was upregulated in response to A2E/blue light. Treatment with the JNK inhibitor SP600125 before irradiation resulted in increase in cell death whereas inhibition of p38 with SB203580 had no effect. This study indicates that c-Abl and p53 are important for execution of the cell death program initiated in A2E-laden RPE cells exposed to blue light, while JNK might play an anti-apoptotic role.

Indexed as

Gene Expression RegulationLightApoptosisCell DeathCell LineCell Line, TumorEpithelial CellsHumansMAP Kinase Kinase 4Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-ablPyridinium CompoundsRetinaRetinoidsRNA, Small InterferingTumor Suppressor Protein p53A2-E (N-retinylidene-N-retinylethanolamine)MAP Kinase Kinase 4Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-ablPyridinium CompoundsRetinoidsRNA, Small InterferingTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID19052872
PMCPMC3099593
OpenAlexW2029293727

What Socratic holds

Textmetadata
LicenceTDM
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.