Evidence map›Paper›PMID 26851019›Full record

ArticleAnticancer research2016

Inhibitory Effects of the Four Main Theaflavin Derivatives Found in Black Tea on Ovarian Cancer Cells.

Ying Gao, Gary O Rankin, Youying Tu, Yi Charlie Chen

Open access · greenAbstract read
In one paragraph

Article in Anticancer research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. In Silico Molecular Docking ofJournal of pharmacy & bioallied sciences · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Investigation of the AzoreanAntioxidants (Basel, Switzerland) · 2022
    Article
  11. Article
  12. Article
  13. Anti-Cancer Properties of Theaflavins.Molecules (Basel, Switzerland) · 2021
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Synthesis of Theaflavins and Their Functions.Molecules (Basel, Switzerland) · 2018
    Review
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Ying GaoDepartment of Tea Science, Zhejiang University, Hangzhou, P.R. China College of Science, Technology and Mathematics, Alderson Broaddus University, Philippi, WV, U.S.A.
Gary O RankinDepartment of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, U.S.A.
Youying TuDepartment of Tea Science, Zhejiang University, Hangzhou, P.R. China chenyc@ab.edu youytu@zju.edu.cn.
Yi Charlie ChenCollege of Science, Technology and Mathematics, Alderson Broaddus University, Philippi, WV, U.S.A. chenyc@ab.edu youytu@zju.edu.cn.
Zhejiang University · CN

Funding

WV INBRE: The Inhibitor of Growth Family Member 4 (ING4) inhibits L-Type Amino Acid Transporter 1 (LAT1) expression to suppress Breast CancerP20GM103434 · NIGMS · MARSHALL UNIVERSITY · PI Travis Salisbury · 2012 to 2026
$61.1M
WVU &MU NEW FACULTY GRANTSP20RR016477 · NCRR · MARSHALL UNIVERSITY · PI RANKIN, GARY O · 2001 to 2011
$35.5M
NCRR NIH HHS P20 RR016477NCRR NIH HHS P20RR016477NIGMS NIH HHS P20 GM103434NIGMS NIH HHS P20GM103434
6 · The paper itself

Abstract

backgroundSome polyphenols induce apoptosis and inhibit angiogenesis. Consumption of black tea, rich in polyphenols, has been found to reduce ovarian cancer risk. Theaflavin (TF1), theaflavin-3-gallate (TF2a), theaflavin-3'-gallate (TF2b) and theaflavin-3, 3'-digallate (TF3) are four main theaflavin derivatives found in black tea. MATERIALS AND

methodsCell proliferation assay, Hoechst 33342 staining assay, Caspase-Glo Assay, western blot, human umbilical vein endothelial cell tube formation assay and vascular endothelial growth factor (VEGF) enzyme-linked immunosorbent assay were performed.

resultsAll four theaflavin derivatives reduced viability of ovarian cancer cells at lower concentrations than with normal ovarian cells. TF1 mainly mediated apoptosis via the intrinsic pathway, while the others via the intrinsic and extrinsic pathways. TF1 inhibited tube formation via reducing VEGF secretion in a hypoxia-inducible factor 1α-independent manner, while the others in a HIF1α-dependent way.

conclusionAll four theaflavin derivatives inhibited ovarian cancer cells. Some of the effects and mechanisms of TF1 are different from those of the other three theaflavin derivatives.

Indexed as

Antineoplastic AgentsAntioxidantsApoptosisBiflavonoidsBlotting, WesternCatechinCell ProliferationCells, CulturedFemaleHumansHuman Umbilical Vein Endothelial CellsOvarian NeoplasmsTeaAntineoplastic AgentsAntioxidantsBiflavonoidsCatechinTeatheaflavinangiogenesisapoptosisovarian cancerTheaflavins

Identifiers

PMID26851019
PMCPMC4899836
OpenAlexW2257956606

What OpenQuestion holds

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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.