Comparative transcriptomics reveals the role of the Toll-like receptor signaling pathway in fluoride-induced cardiotoxicity.

08:00 EDT 9th April 2019 | BioPortfolio

Summary of "Comparative transcriptomics reveals the role of the Toll-like receptor signaling pathway in fluoride-induced cardiotoxicity."

Many studies have shown that fluorosis due to long-term fluoride intake, has damaging effects on the heart. However, the mechanisms underlying cardiac fluorosis have not been illuminated in detail. We performed High-throughput transcriptome sequencing (RNA-Seq) on rat cardiac tissue to explore the molecular effects of NaF exposure. In total, 372 and 254 differentially expressed genes (DEGs) were identified between a group given 30 mg/L NaF and control, and between a group given 90 mg/L NaF and control, respectively. The transcript levels of most of these genes were significantly downregulated and many were distributed in the Toll-like receptor signaling pathway. Transcriptome analysis revealed that herpes simplex infection, ECM-receptor interaction, influenza A, cytokine-cytokine receptor interaction, Apoptosis and Toll-like receptor signaling pathway were significantly affected. IL-6 and IL-10 may play a crucial role in the cardiac damage caused by NaF as external stimuli according to protein-protein interaction (PPI) network analysis. The results of qRT-PCR and western blotting showed markedly decreased mRNA and protein levels of IL-1, IL-6, and IL-10 in the low concentration fluoride (LF) and high concentration fluoride (HF) groups, which was in agreement with RNA-Seq results. This is the first study to investigate NaF-induced cardiotoxicity at a transcriptome level. Key words: fluoride; cardiac injury; inflammatory injury; RNA-seq; Toll-like pathway.


Journal Details

This article was published in the following journal.

Name: Journal of agricultural and food chemistry
ISSN: 1520-5118


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