Genome-wide localization of the polyphenol quercetin in human monocytes.

Abstract:

BACKGROUND:Quercetin is a polyphenol of great interest given its antioxidant activity and involvement in the immune response. Although quercetin has been well studied at the molecular level as a gene regulator and an activator of specific cellular pathways, not much attention has been given to its mechanism of action at the genome-wide level. The present study aims to characterize quercetin's interaction with cellular DNA and to show its subsequent effect on downstream transcription. RESULTS:Two massive parallel DNA-sequencing technologies were used: Chem-seq and RNA-seq. We demonstrate that upon binding to DNA or genome-associated proteins, quercetin acts as a cis-regulatory transcription factor for the expression of genes that are involved in the cell cycle, differentiation and development. CONCLUSIONS:Such findings could provide new and important insights into the mechanisms by which the dietary polyphenol quercetin influences cellular functions.

journal_name

BMC Genomics

journal_title

BMC genomics

authors

Atrahimovich D,Samson AO,Barsheshet Y,Vaya J,Khatib S,Reuveni E

doi

10.1186/s12864-019-5966-9

subject

Has Abstract

pub_date

2019-07-23 00:00:00

pages

606

issue

1

issn

1471-2164

pii

10.1186/s12864-019-5966-9

journal_volume

20

pub_type

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