Evidence map›Paper›PMID 26366234›Full record

ArticleClinical epigenetics2015

Epigenetic synergy between decitabine and platinum derivatives.

Taichun Qin, Jiali Si, Noël J-M Raynal, Xiaodan Wang, Vazganush Gharibyan, Saira Ahmed, Xin Hu, Chunlei Jin, Yue Lu, Jingmin Shu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.6field-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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

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  16. DNA Hypomethylating Drugs in Cancer Therapy.Cold Spring Harbor perspectives in medicine · 2017
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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

13 authors at 2 institutions in 1 country.

Taichun Qin *Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Jiali Si *Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Noël J-M RaynalDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Xiaodan WangHarbin Institute of Hematology & Oncology, Harbin, 150010 China.
Vazganush GharibyanDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Saira AhmedDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Xin HuDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Chunlei JinDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Yue LuDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Jingmin ShuDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Marcos Rh EstecioDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Jaroslav JelinekDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
Jean-Pierre J IssaDepartment of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA.
The University of Texas MD Anderson Cancer Center · USTemple University · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
University of Texas M.D. Anderson Cancer SPORE-LeukemiaP50CA100632 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI KONOPLEVA, MARINA Y · 2003 to 2023
$43.7M
Regulators of Cancer-Specific DNA Hypermethylation.R01CA158112 · NCI · TEMPLE UNIV OF THE COMMONWEALTH · PI ISSA, JEAN-PIERRE J. · 2012 to 2016
$1.6M
NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA100632NCI NIH HHS R01 CA158112
6 · The paper itself

Abstract

backgroundAberrant epigenetic silencing of tumor suppressor genes has been recognized as a driving force in cancer. Epigenetic drugs such as the DNA methylation inhibitor decitabine reactivate genes and are effective in myeloid leukemia, but resistance often develops and efficacy in solid tumors is limited. To improve their clinical efficacy, we searched among approved anti-cancer drugs for an epigenetic synergistic combination with decitabine.

resultsWe used the YB5 cell line, a clonal derivative of the SW48 colon cancer cell line that contains a single copy of a hypermethylated cytomegalovirus (CMV) promoter driving green fluorescent protein (GFP) to screen for drug-induced gene reactivation and synergy with decitabine. None of the 16 anti-cancer drugs tested had effects on their own. However, in combination with decitabine, platinum compounds showed striking synergy in activating GFP. This was dose dependent, observed both in concurrent and sequential combinations, and also seen with other alkylating agents. Clinically achievable concentrations of carboplatin at (25 μM) and decitabine reactivated GFP in 28 % of the YB5 cells as compared to 15 % with decitabine alone. Epigenetic synergy was also seen at endogenously hypermethylated tumor suppressor genes such as MLH1 and PDLIM4. Genome-wide studies showed that reactivation of hypermethylated genes by the combination was significantly better than that induced by decitabine alone or carboplatin alone. Platinum compounds did not enhance decitabine-induced hypomethylation. Rather, we found significantly inhibited HP1α expression by carboplatin and the combination. This was accompanied by increased histone H3 lysine 4 (H3K4) trimethylation and histone H3 lysine 9 (H3K9) acetylation at reactivated genes (P < 0.0001) and reduced occupancy by methyl-binding proteins including MeCP2 and methyl-CpG-binding domain protein 2 (MBD2) (P < 0.0001).

conclusionsOur results suggest that the combination of decitabine with platinum analogs shows epigenetic synergy that might be exploited in the treatment of different cancers.

Indexed as

5-aza-2′-deoxycytidineCarboplatinDNA methylationEpigenetic reactivationTumor suppressor genes

Identifiers

PMID26366234
PMCPMC4567801
OpenAlexW2171655757

What OpenQuestion holds

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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.