Evidence map›Paper›PMID 25473514›Full record

ArticleFood science & nutrition2014

Histone deacetylase inhibitory effect of Brazilian propolis and its association with the antitumor effect in Neuro2a cells.

Shinobu Ishiai, Wataru Tahara, Etsuko Yamamoto, Rindai Yamamoto, Kaoru Nagai

Open access · hybridAbstract read
In one paragraph

Article in Food science & nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Bioactive Components of Chinese Propolis Water Extract on Antitumor Activity and Quality Control.Evidence-based complementary and alternative medicine : eCAM · 2016
    Article
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 1 institution in 1 country.

Shinobu IshiaiInterdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi Chuo-shi, Yamanashi, Japan ; Nihon Natural Foods Co., Ltd. Tokyo, Japan.
Wataru TaharaNihon Natural Foods Co., Ltd. Tokyo, Japan.
Etsuko YamamotoNihon Natural Foods Co., Ltd. Tokyo, Japan.
Rindai YamamotoNihon Natural Foods Co., Ltd. Tokyo, Japan.
Kaoru NagaiInterdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi Chuo-shi, Yamanashi, Japan.
University of Yamanashi · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Propolis is a resinous product produced by honey bees and is known to have antitumor functions. On the other hand, histone deacetylase (Hdac) inhibitors have recently attracted attention for their antitumor effects. In this study, we examined whether Brazilian green propolis has an Hdac inhibitory activity and its contribution on antitumor effects. By in vitro Hdac activity assay, Brazilian propolis extract (BPE) significantly inhibited the enzyme activity. Actually, BPE treatment increased the intracellular histone acetylation in Neuro2a cells. Regarding antitumor effect in Neuro2a cells, BPE treatment significantly decreased cell viability. An Hdac activator theophylline significantly attenuated the effect. Then, we analyzed whether the decreasing effect on cell number was caused by cell death or growth retardation. By live/dead cell staining, BPE treatment significantly increased the dead cell number. By cell cycle analysis, BPE treatment retarded cell cycle at the M-phase. Both of these cellular effects were suppressed by addition of theophylline. These data indicate that BPE induced both cell death and growth retardation via Hdac inhibitory activity. We demonstrated that Brazilian propolis bears regulatory functions on histone acetylation via Hdac inhibition, and the effect contributes antitumor functions. Our data suggest that intake of Brazilian propolis shows preventing effects against cancer.

Indexed as

Brazilian propoliscell cycle arrestcell deathHdacNeuro2a

Identifiers

PMID25473514
PMCPMC4237486
OpenAlexW2095301277

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.