Evidence map›Paper›PMID 31591209›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

DNA methyltransferase inhibitors induce a BRCAness phenotype that sensitizes NSCLC to PARP inhibitor and ionizing radiation.

Rachel Abbotts, Michael J Topper, Christopher Biondi, Daniel Fontaine, Reena Goswami, Lora Stojanovic, Eun Yong Choi, Lena McLaughlin, Aksinija A Kogan, Limin Xia and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

62 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
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  3. Targeting the ANGPTL4/NRP1/ABL1/RAD51 axis reverses cisplatin resistance by impairing DNA damage repair in head and neck cancer.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  14. Epigenetic drugs in cancer therapy.Cancer metastasis reviews · 2025
    Review
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2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 1 country.

Rachel AbbottsDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.ORCID 0000-0001-8664-8278
Michael J TopperDepartment of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, 21231.
Christopher BiondiDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Daniel FontaineDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Reena GoswamiGeorgetown College, Georgetown University, Washington, DC 20057.
Lora StojanovicDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Eun Yong ChoiMarlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201.
Lena McLaughlinDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Aksinija A KoganDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Limin XiaDepartment of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, 21231.
Rena LapidusMarlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201.
Javed MahmoodDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201.
Stephen B BaylinDepartment of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, 21231; sbaylin@jhmi.edu frassool@som.umaryland.edu.
Feyruz V RassoolDepartment of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201; sbaylin@jhmi.edu frassool@som.umaryland.edu.
University of Maryland, Baltimore · USJohns Hopkins University · USGeorgetown University · US

Funding

UNIVERSITY OF MARYLAND GREENEBAUM CANCER CENTERSUPPORT GRANTP30CA134274 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI FEYRUZ VIRGILIA RASSOOL · 2008 to 2026
$51.0M
Training Program in Cellular and Molecular MedicineT32GM008752 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI RAO, RAJINI · 2000 to 2019
$11.7M
The Nathan Schnaper Intern Program in Translational Cancer ResearchR25CA186872 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI BRET A HASSEL, Ian Robert Kleckner · 2015 to 2026
$3.0M
NCI NIH HHS P30 CA134274NCI NIH HHS R25 CA186872NIGMS NIH HHS T32 GM008752
6 · The paper itself

Abstract

A minority of cancers have breast cancer gene (BRCA) mutations that confer sensitivity to poly (ADP-ribose) polymerase (PARP) inhibitors (PARPis), but the role for PARPis in BRCA-proficient cancers is not well established. This suggests the need for novel combination therapies to expand the use of these drugs. Recent reports that low doses of DNA methyltransferase inhibitors (DNMTis) plus PARPis enhance PARPi efficacy in BRCA-proficient AML subtypes, breast, and ovarian cancer open up the possibility that this strategy may apply to other sporadic cancers. We identify a key mechanistic aspect of this combination therapy in nonsmall cell lung cancer (NSCLC): that the DNMTi component creates a BRCAness phenotype through downregulating expression of key homologous recombination and nonhomologous end-joining (NHEJ) genes. Importantly, from a translational perspective, the above changes in DNA repair processes allow our combinatorial PARPi and DNMTi therapy to robustly sensitize NSCLC cells to ionizing radiation in vitro and in vivo. Our combinatorial approach introduces a biomarker strategy and a potential therapy paradigm for treating BRCA-proficient cancers like NSCLC.

Indexed as

AnimalsAntineoplastic AgentsBRCA1 ProteinBRCA2 ProteinCarcinoma, Non-Small-Cell LungCell Line, TumorCombined Modality TherapyDNA Modification MethylasesDNA RepairDrug Therapy, CombinationEnzyme InhibitorsFemaleHomologous RecombinationHumansLung NeoplasmsMaleAntineoplastic AgentsBRCA1 ProteinBRCA2 ProteinDNA Modification MethylasesEnzyme InhibitorsPhthalazinesPoly(ADP-ribose) Polymerase InhibitorstalazoparibDNA repairhomologous recombination defectlung cancernonhomologous end-joiningpoly (ADP-ribose) polymerase inhibitors

Identifiers

PMID31591209
PMCPMC6842607
OpenAlexW2979501499

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.