Evidence map›Paper›PMID 31900196›Full record

ArticleClinical epigenetics2020

Elevated HDAC activity and altered histone phospho-acetylation confer acquired radio-resistant phenotype to breast cancer cells.

Asmita Sharda, Mudasir Rashid, Sanket Girish Shah, Ajit Kumar Sharma, Saurav Raj Singh, Poonam Gera, Murali Krishna Chilkapati, Sanjay Gupta

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.4field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. The role of epigenetic alterations in canine mammary cancer.The Journal of reproduction and development · 2026
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  9. DNA repair in tumor radioresistance: insights from fruit flies genetics.Cellular oncology (Dordrecht, Netherlands) · 2024
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  18. The Advances in Epigenetics for Cancer Radiotherapy.International journal of molecular sciences · 2022
    Review
  19. Radiotherapy resistance: identifying universal biomarkers for various human cancers.Journal of cancer research and clinical oncology · 2022
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  20. Review
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

8 authors at 3 institutions in 2 countries.

Asmita ShardaEpigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Mudasir RashidEpigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Sanket Girish ShahEpigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Ajit Kumar SharmaEpigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Saurav Raj SinghChilkapati Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Poonam GeraBiorepository, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India.
Murali Krishna ChilkapatiHomi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, MH, 400085, India.
Sanjay GuptaEpigenetics and Chromatin Biology Group, Gupta Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, MH, 410210, India. sgupta@actrec.gov.in.
Advanced Centre for Treatment, Research and Education in Cancer · INHomi Bhabha National Institute · INTata Memorial Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPoor-responsiveness of tumors to radiotherapy is a major clinical problem. Owing to the dynamic nature of the epigenome, the identification and targeting of potential epigenetic modifiers may be helpful to curb radio-resistance. This requires a detailed exploration of the epigenetic changes that occur during the acquirement of radio-resistance. Such an understanding can be applied for effective utilization of treatment adjuncts to enhance the efficacy of radiotherapy and reduce the incidence of tumor recurrence.

resultsThis study explored the epigenetic alterations that occur during the acquirement of radio-resistance. Sequential irradiation of MCF7 breast cancer cell line up to 20 Gy generated a radio-resistant model. Micrococcal nuclease digestion demonstrated the presence of compact chromatin architecture coupled with decreased levels of histone PTMs H3K9ac, H3K27 ac, and H3S10pK14ac in the G

conclusionThe study revealed that an imbalance of HAT and HDAC activities led to the loss of site-specific histone acetylation and chromatin compaction as breast cancer cells acquired radio-resistance. Due to variation in the tumor HDAC activity among patients, our report suggests performing a prior assessment of the tumor epigenome to maximize the benefit of HDAC inhibitor-based radio-sensitization.

Indexed as

AcetylationBreast NeoplasmsCell Line, TumorChromatinEnzyme InhibitorsEpigenesis, GeneticFemaleHistone Deacetylase InhibitorsHistonesHumansIncidenceNeoplasm Recurrence, LocalPhenotypeRadiotherapyValproic AcidChromatinEnzyme InhibitorsHistone Deacetylase InhibitorsHistonesValproic AcidBreast cancerChromatinHistone deacetylaseHistone post-translational modificationsRadio-resistanceRadiotherapyValproic acid

Identifiers

PMID31900196
PMCPMC6942324
OpenAlexW3003176324

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.