Evidence map›Paper›PMID 20934508›Full record

ArticleFree radical biology & medicine2011

Resveratrol and N-acetylcysteine block the cancer-initiating step in MCF-10F cells.

Muhammad Zahid, Muhammad Saeed, Cheryl Beseler, Eleanor G Rogan, Ercole L Cavalieri

Abstract read
In one paragraph

Article in Free radical biology & medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

23 citing papers in PubMed, 34 citations in OpenAlex.

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  10. Etiology and prevention of prevalent types of cancer.Journal of rare diseases research & treatment · 2017
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  17. The etiology and prevention of breast cancer.Drug discovery today. Disease mechanisms · 2012
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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

5 authors at 2 institutions in 1 country.

Muhammad ZahidEppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Muhammad Saeed
Cheryl Beseler
Eleanor G Rogan
Ercole L Cavalieri
University of Nebraska Medical Center · USColorado State University · US

Funding

UNMC/EPPLEY CANCER CENTER SUPPORT GRANTP30CA036727 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Steven H Caplan · 1985 to 2026
$55.0M
NCI NIH HHS CA P30 36727NCI NIH HHS P30 CA036727
6 · The paper itself

Abstract

Substantial evidence suggests that catechol estrogen-3,4-quinones react with DNA to form predominantly the depurinating adducts 4-hydroxyestrone (estradiol)-1-N3Ade [4-OHE(1)(E(2))-1-N3Ade] and 4-OHE(1)(E(2))-1-N7Gua. Apurinic sites resulting from these adducts generate critical mutations that can initiate cancer. The paradigm of cancer initiation is based on an imbalance in estrogen metabolism between activating pathways that lead to estrogen-DNA adducts and deactivating pathways that lead to estrogen metabolites and conjugates. This imbalance can be improved to minimize formation of adducts by using antioxidants, such as resveratrol (Resv) and N-acetylcysteine (NAcCys). To compare the ability of Resv and NAcCys to block formation of estrogen-DNA adducts, we used the human breast epithelial cell line MCF-10F treated with 4-OHE(2). Resv and NAcCys directed the metabolism of 4-OHE(2) toward protective pathways. NAcCys reacted with the quinones and reduced the semiquinones to catechols. This pathway was also carried out by Resv. In addition, Resv induced the protective enzyme quinone reductase, which reduces E(1)(E(2))-3,4-quinones to 4-OHE(1)(E(2)). Resv was more effective at increasing the amount of 4-OCH(3)E(1)(E(2)) than NAcCys. Inhibition of estrogen-DNA adduct formation was similar at lower doses, but at higher doses Resv was about 50% more effective than NAcCys. Their combined effects were additive. Therefore, these two antioxidants provide an excellent combination to protect catechol estrogens from oxidation to catechol quinones.

Indexed as

AcetylcysteineAnticarcinogenic AgentsBreast NeoplasmsCarcinomaCell LineCell Transformation, NeoplasticDrug CombinationsDrug Evaluation, PreclinicalDrug SynergismFemaleHumansMammary Glands, HumanModels, BiologicalResveratrolStilbenesAcetylcysteineAnticarcinogenic AgentsDrug CombinationsResveratrolStilbenes

Identifiers

PMID20934508
PMCPMC4425208
OpenAlexW2043227196

What OpenQuestion holds

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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.