Evidence map›Paper›PMID 17297441›Full record

ArticleOncogene2007

Clock and ATF4 transcription system regulates drug resistance in human cancer cell lines.

T Igarashi, H Izumi, T Uchiumi, K Nishio, T Arao, M Tanabe, H Uramoto, K Sugio, K Yasumoto, Y Sasaguri and 3 more

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

68 citing papers in PubMed, 136 citations in OpenAlex.

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  20. The integrated stress response in pulmonary disease.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review

8 more citing papers are in PubMed but not listed here.

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

13 authors at 2 institutions in 1 country.

T IgarashiDepartment of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
H Izumi
T Uchiumi
K Nishio
T Arao
M Tanabe
H Uramoto
K Sugio
K Yasumoto
Y Sasaguri
K Y Wang
Y Otsuji
K Kohno
University of Occupational and Environmental Health Japan · JPKindai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanisms underlying cellular drug resistance have been extensively studied, but little is known about its regulation. We have previously reported that activating transcription factor 4 (ATF4) is upregulated in cisplatin-resistant cells and plays a role in cisplatin resistance. Here, we find out a novel relationship between the circadian transcription factor Clock and drug resistance. Clock drives the periodical expression of many genes that regulate hormone release, cell division, sleep-awake cycle and tumor growth. We demonstrate that ATF4 is a direct target of Clock, and that Clock is overexpressed in cisplatin-resistant cells. Furthermore, Clock expression significantly correlates with cisplatin sensitivity, and that the downregulation of either Clock or ATF4 confers sensitivity of A549 cells to cisplatin and etoposide. Notably, ATF4-overexpressing cells show multidrug resistance and marked elevation of intracellular glutathione. The microarray study reveals that genes for glutathione metabolism are generally downregulated by the knockdown of ATF4 expression. These results suggest that the Clock and ATF4 transcription system might play an important role in multidrug resistance through glutathione-dependent redox system, and also indicate that physiological potentials of Clock-controlled redox system might be important to better understand the oxidative stress-associated disorders including cancer and systemic chronotherapy.

Indexed as

Transcription, GeneticActivating Transcription Factor 4Antineoplastic AgentsBlotting, NorthernBlotting, WesternCell Line, TumorCell SurvivalChromatin ImmunoprecipitationCisplatinCLOCK ProteinsDrug Resistance, NeoplasmEtoposideGene Expression ProfilingGene Expression Regulation, NeoplasticGlutathioneHumansActivating Transcription Factor 4Antineoplastic AgentsATF4 protein, humanCisplatinCLOCK protein, humanCLOCK ProteinsEtoposideGlutathioneTrans-Activators

Identifiers

PMID17297441
OpenAlexW1975542710

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.