Evidence map›Paper›PMID 26569217›Full record

ArticleInternational journal of molecular sciences2015

Mobilization of Copper ions by Flavonoids in Human Peripheral Lymphocytes Leads to Oxidative DNA Breakage: A Structure Activity Study.

Hussain Arif, Nida Rehmani, Mohd Farhan, Aamir Ahmad, Sheikh Mumtaz Hadi

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 51 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

5 authors at 2 institutions in 2 countries.

Hussain ArifDepartment of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India. arifkap@gmail.com.
Nida RehmaniDepartment of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India. nida.rehmani4@gmail.com.
Mohd FarhanDepartment of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India. farhan@mohdfarhan.com.
Aamir AhmadKarmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA. ahmada@karmanos.org.
Sheikh Mumtaz HadiDepartment of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India. smhadi@vsnl.com.
Aligarh Muslim University · INWayne State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epidemiological studies have linked dietary consumption of plant polyphenols with lower incidence of various cancers. In particular, flavonoids (present in onion, tomato and other plant sources) induce apoptosis and cytotoxicity in cancer cells. These can therefore be used as lead compounds for the synthesis of novel anticancer drugs with greater bioavailability. In the present study, we examined the chemical basis of cytotoxicity of flavonoids by studying the structure-activity relationship of myricetin (MN), fisetin (FN), quercetin (QN), kaempferol (KL) and galangin (GN). Using single cell alkaline gel electrophoresis (comet assay), we established the relative efficiency of cellular DNA breakage as MN > FN > QN > KL > GN. Also, we determined that the cellular DNA breakage was the result of mobilization of chromatin-bound copper ions and the generation of reactive oxygen species. The relative DNA binding affinity order was further confirmed using molecular docking and thermodynamic studies through the interaction of flavonoids with calf thymus DNA. Our results suggest that novel anti-cancer molecules should have ortho-dihydroxy groups in B-ring and hydroxyl groups at positions 3 and 5 in the A-ring system. Additional hydroxyl groups at other positions further enhance the cellular cytotoxicity of the flavonoids.

Indexed as

Antineoplastic Agents, PhytogenicCations, DivalentChelating AgentsComet AssayCopperDNADNA FragmentationFlavonoidsFlavonolsHumansKaempferolsLeukocytes, MononuclearMolecular Docking SimulationOxidation-ReductionPrimary Cell CultureQuercetinAntineoplastic Agents, Phytogeniccalf thymus DNACations, DivalentChelating AgentsCopperDNAfisetinFlavonoidsFlavonolsgalanginkaempferolKaempferolsmyricetinQuercetinReactive Oxygen Speciescomet assayflavonoidshydroxyl group positionsIsothermal Titration Calorimetric Measurementsmolecular dockingstructure activity relationship

Identifiers

PMID26569217
PMCPMC4661851
OpenAlexW2158867779

What OpenQuestion holds

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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.