Evidence map›Paper›PMID 27260468›Full record

ArticleThe Journal of nutritional biochemistry2016

Epigenetic modifications of triterpenoid ursolic acid in activating Nrf2 and blocking cellular transformation of mouse epidermal cells.

Hyuck Kim, Christina N Ramirez, Zheng-Yuan Su, Ah-Ng Tony Kong

Open access · greenAbstract read
In one paragraph

Article in The Journal of nutritional biochemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

57 citing papers in PubMed, 72 citations in OpenAlex.

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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

4 authors at 2 institutions in 2 countries.

Hyuck KimCenter for Cancer Prevention Research, Ernest Mario School of Pharmacy, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Earnest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
Christina N RamirezDepartment of Pharmaceutics, Earnest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Cellular and Molecular Pharmacology Program, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.
Zheng-Yuan SuDepartment of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, Taiwan (Republic of China) 32023.
Ah-Ng Tony KongCenter for Cancer Prevention Research, Ernest Mario School of Pharmacy, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Earnest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA. Electronic address: KongT@pharmacy.rutgers.edu.
Rutgers, The State University of New Jersey · USChung Yuan Christian University · TW

Funding

Translational Research Support CoreP30ES005022 · NIEHS · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI ROBERT John LAUMBACH · 1988 to 2026
$47.4M
UMDNJ-RUTGERS UNIVERSITY PIPELINE PROGRAMR25GM055145 · NIGMS · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI HAIMOVICH, BEATRICE, LANGER, JEROME ALAN · 1996 to 2020
$8.7M
Epigenetic mechanisms of indole-3-carbinol/diindolylemthane and triterpenoids in prevention of prostate inflammation and related diseaseR01AT009152 · NCCIH · RUTGERS, THE STATE UNIV OF N.J. · PI KONG, AH-NG TONY · 2015 to 2019
$3.3M
Prevention of skin cancer by phytochemicals via Nrf2 and epigeneticsR01CA200129 · NCI · RUTGERS, THE STATE UNIV OF N.J. · PI KONG, AH-NG TONY · 2016 to 2020
$1.8M
NCCIH NIH HHS R01 AT009152NCI NIH HHS R01 CA200129NIEHS NIH HHS P30 ES005022NIGMS NIH HHS R25 GM055145
6 · The paper itself

Abstract

Ursolic acid (UA), a well-known natural triterpenoid found in abundance in blueberries, cranberries and apple peels, has been reported to possess many beneficial health effects. These effects include anticancer activity in various cancers, such as skin cancer. Skin cancer is the most common cancer in the world. Nuclear factor E2-related factor 2 (Nrf2) is a master regulator of antioxidative stress response with anticarcinogenic activity against UV- and chemical-induced tumor formation in the skin. Recent studies show that epigenetic modifications of Nrf2 play an important role in cancer prevention. However, the epigenetic impact of UA on Nrf2 signaling remains poorly understood in skin cancer. In this study, we investigated the epigenetic effects of UA on mouse epidermal JB6 P+ cells. UA inhibited cellular transformation by 12-O-tetradecanoylphorbol-13-acetate at a concentration at which the cytotoxicity was no more than 25%. Under this condition, UA induced the expression of the Nrf2-mediated detoxifying/antioxidant enzymes heme oxygenase-1, NAD(P)H:quinone oxidoreductase 1 and UDP-glucuronosyltransferase 1A1. DNA methylation analysis revealed that UA demethylated the first 15 CpG sites of the Nrf2 promoter region, which correlated with the reexpression of Nrf2. Furthermore, UA reduced the expression of epigenetic modifying enzymes, including the DNA methyltransferases DNMT1 and DNMT3a and the histone deacetylases (HDACs) HDAC1, HDAC2, HDAC3 and HDAC8 (Class I) and HDAC6 and HDAC7 (Class II), and HDAC activity. Taken together, these results suggest that the epigenetic effects of the triterpenoid UA could potentially contribute to its beneficial effects, including the prevention of skin cancer.

Indexed as

Cell Transformation, NeoplasticEpigenesis, GeneticAnimalsAnticarcinogenic AgentsAntioxidantsCarcinogensCell LineCell SurvivalDietary SupplementsDNA (Cytosine-5-)-MethyltransferasesDNA MethylationEnzyme RepressionEpidermal CellsEpidermisHistone DeacetylasesMiceAnticarcinogenic AgentsAntioxidantsCarcinogensDNA (Cytosine-5-)-MethyltransferasesHistone DeacetylasesNfe2l2 protein, mouseNF-E2-Related Factor 2TriterpenesUrsolic AcidDNMTHDACJB6 P+Nrf2Skin cancerUA

Identifiers

PMID27260468
PMCPMC4895202
OpenAlexW2172756222

What OpenQuestion holds

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LicenceTDM
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.