Evidence map›Paper›PMID 27307581›Full record

ArticleMolecular biology of the cell2016

Hsp90 induces increased genomic instability toward DNA-damaging agents by tuning down RAD53 transcription.

Nidhi Khurana, Shyamasree Laskar, Mrinal K Bhattacharyya, Sunanda Bhattacharyya

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Inhibition ofFrontiers in parasitology · 2026
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  3. Review
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  5. Neurosurgical Applications of Magnetic Hyperthermia Therapy.Neurosurgery clinics of North America · 2023
    Review
  6. Article
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  8. Article
  9. The Nuclear and DNA-Associated Molecular Chaperone Network.Cold Spring Harbor perspectives in biology · 2019
    Review
  10. Review
  11. Article
  12. Review
  13. Article
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.

Nidhi KhuranaDepartment of Biotechnology and Bioinformatics, University of Hyderabad, Hyderabad 500046, India.
Shyamasree LaskarDepartment of Biotechnology and Bioinformatics, University of Hyderabad, Hyderabad 500046, India.
Mrinal K BhattacharyyaDepartment of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India.
Sunanda BhattacharyyaDepartment of Biotechnology and Bioinformatics, University of Hyderabad, Hyderabad 500046, India sdeb70@gmail.com.
University of Hyderabad · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is well documented that elevated body temperature causes tumors to regress upon radiotherapy. However, how hyperthermia induces DNA damage sensitivity is not clear. We show that a transient heat shock and particularly the concomitant induction of Hsp90 lead to increased genomic instability under DNA-damaging conditions. Using Saccharomyces cerevisiae as a model eukaryote, we demonstrate that elevated levels of Hsp90 attenuate efficient DNA damage signaling and dictate preferential use of the potentially mutagenic double-strand break repair pathway. We show that under normal physiological conditions, Hsp90 negatively regulates RAD53 transcription to suppress DNA damage checkpoint activation. However, under DNA damaging conditions, RAD53 is derepressed, and the increased level of Rad53p triggers an efficient DNA damage response. A higher abundance of Hsp90 causes increased transcriptional repression on RAD53 in a dose-dependent manner, which could not be fully derepressed even in the presence of DNA damage. Accordingly, cells behave like a rad53 loss-of-function mutant and show reduced NHEJ efficiency, with a drastic failure to up-regulate RAD51 expression and manifestly faster accumulation of CLN1 and CLN2 in DNA-damaged G1, cells leading to premature release from checkpoint arrest. We further demonstrate that Rad53 overexpression is able to rescue all of the aforementioned deleterious effects caused by Hsp90 overproduction.

Indexed as

Cell CycleCell Cycle ProteinsCheckpoint Kinase 2CyclinsDNADNA DamageDNA RepairFeverGene Expression Regulation, FungalGenomic InstabilityHSP90 Heat-Shock ProteinsPhosphorylationProtein KinasesProtein Serine-Threonine KinasesRad51 RecombinaseSaccharomyces cerevisiaeCell Cycle ProteinsCheckpoint Kinase 2CLN1 protein, S cerevisiaeCLN2 protein, S cerevisiaeCyclinsDNAHSP82 protein, S cerevisiaeHSP90 Heat-Shock ProteinsProtein KinasesProtein Serine-Threonine KinasesRAD51 protein, S cerevisiaeRad51 RecombinaseRAD53 protein, S cerevisiaeSaccharomyces cerevisiae Proteins

Identifiers

PMID27307581
PMCPMC4966986
OpenAlexW2441250566

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.