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Effect of Urolithin A on T cell differentiation and gene expression

ABSTRACT: Effect of Urolithin A on T cell differentiation and gene expression

PROVIDER: PRJNA881344 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21607982.fastq.gz	Fastqsanger.gz
	SRR21607983.fastq.gz	Fastqsanger.gz
	SRR21607984.fastq.gz	Fastqsanger.gz
	SRR21607985.fastq.gz	Fastqsanger.gz
	SRR21607986.fastq.gz	Fastqsanger.gz

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Effect of Urolithin A on T cell differentiation and gene expression

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Project description:The identification of new agents that may modulate the progression of cancer cell growth is of great interest. In this regard, dietary agents can be utilized to identify molecular targets to be used as part of a chemopreventive strategy. Walnuts contain several bioactive compounds, including pedunculagin, a polyphenol metabolized by microbiota to form urolithins, namely urolithin A (UA). We performed a genomic analysis to study the effect of UA on androgen-dependent LNCaP prostate adenocarcinoma cells. Cells were incubated with 40ÂµM UA for 24 hours, then, RNA was extracted. RNA samples were processed in the automated Biomek FX System (Beckman Coulter), where aRNA was produced, and labeled with Biotin, purified , fragmented and hybridized onto HG U219-24 Array, using the GeneChip HT 3âIVT Express Kit . Afterwards, the GeneTitanÂ® Multi-Channel (MC) Instrument (Affymetrix) was used to hybridize, wash , stain , and scan the arrays. Microarray results were analyzed using the GeneSpring GX v13.0 software. LNCaP cells were plated in 35mm wells, the following day they were treated with 40ÂµM urolithin A (UA) for 24 hours, after incubation Total RNA was extracted using Qiagen RNAeasy minikit. The Affymetrix Human Genome U219 array plate was used, which measures gene expression of more than 36 000 transcripts and variants per sample, which represent more than 20 000 genes.

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Project description:Urolithin A is a polyphenol derived from the multi-step metabolism of dietary ellagitannins by the human gut microbiota which can affect host health. Most, but not all, individuals harbor a microbiota capable of urolithin A production; however, the enzymes that dehydroxylate its dietary precursor, urolithin C, are unknown. Here, we used a combination of transcriptomics and proteomics to reveal a urolithin C dehydroxylase (ucd) operon that dehydroxylates 9-hydroxy urolithin compounds in Enterocloster spp. Using comparative genomics, we identified Lachnoclostridium pacaense as a novel urolithin C metabolizer. Biochemical characterization and structure predictions of proteins in the Ucd complex demonstrated that dehydroxylation was both NADH- and molybdopterin-dependent and used urolithin C as a terminal electron acceptor. A meta-analysis publicly available metagenomic data revealed that both bacteria and ucd operon genes are widely distributed in gut metagenomes and likely comprise keystone species in the metabolism of urolithins by the human gut microbiota.

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