Evidence map›Paper›PMID 17698581›Full record

ArticleMolecular and cellular biology2007

TOR signaling is a determinant of cell survival in response to DNA damage.

Changxian Shen, Cynthia S Lancaster, Bin Shi, Hong Guo, Padma Thimmaiah, Mary-Ann Bjornsti

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

55 citing papers in PubMed, 93 citations in OpenAlex.

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  12. Inhibiting BRAF Oncogene-Mediated Radioresistance Effectively Radiosensitizes BRAFClinical cancer research : an official journal of the American Association for Cancer Research · 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

6 authors at 1 institution in 1 country.

Changxian ShenDepartment of Molecular Pharmacology, St. Jude Children's Research Hospital, 332 N. Lauderdale, Memphis, TN 38105, USA.
Cynthia S Lancaster
Bin Shi
Hong Guo
Padma Thimmaiah
Mary-Ann Bjornsti
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
XENOGRAFT STUDIESP01CA023099 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI HOUGHTON, PETER J · 1985 to 2011
$22.4M
NCI NIH HHS CA21765NCI NIH HHS CA23099NCI NIH HHS P01 CA023099NCI NIH HHS P30 CA021765
6 · The paper itself

Abstract

The conserved TOR (target of rapamycin) kinase is part of a TORC1 complex that regulates cellular responses to environmental stress, such as amino acid starvation and hypoxia. Dysregulation of Akt-TOR signaling has also been linked to the genesis of cancer, and thus, this pathway presents potential targets for cancer chemotherapeutics. Here we report that rapamycin-sensitive TORC1 signaling is required for the S-phase progression and viability of yeast cells in response to genotoxic stress. In the presence of the DNA-damaging agent methyl methanesulfonate (MMS), TOR-dependent cell survival required a functional S-phase checkpoint. Rapamycin inhibition of TORC1 signaling suppressed the Rad53 checkpoint-mediated induction of ribonucleotide reductase subunits Rnr1 and Rnr3, thereby abrogating MMS-induced mutagenesis and enhancing cell lethality. Moreover, cells deleted for RNR3 were hypersensitive to rapamycin plus MMS, providing the first demonstration that Rnr3 contributes to the survival of cells exposed to DNA damage. Our findings support a model whereby TORC1 acts as a survival pathway in response to genotoxic stress by maintaining the deoxynucleoside triphosphate pools necessary for error-prone translesion DNA polymerases. Thus, TOR-dependent cell survival in response to DNA-damaging agents coincides with increased mutation rates, which may contribute to the acquisition of chemotherapeutic drug resistance.

Indexed as

Cell SurvivalDNA DamageAdultCell Cycle ProteinsCheckpoint Kinase 2CycloheximideHumansMethyl MethanesulfonateMultiprotein ComplexesMutagensProtein Serine-Threonine KinasesProtein SubunitsRibonucleoside Diphosphate ReductaseSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSignal TransductionCell Cycle ProteinsCheckpoint Kinase 2CycloheximideMethyl MethanesulfonateMultiprotein ComplexesMutagensProtein Serine-Threonine KinasesProtein SubunitsRAD53 protein, S cerevisiaeRibonucleoside Diphosphate ReductaseRNR3 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsSirolimustarget of rapamycin protein, S cerevisiaeTranscription Factors

Identifiers

PMID17698581
PMCPMC2168917
OpenAlexW2139330894

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.