A transcriptomic study of selenium against liver injury induced by beta-cypermethrin in mice by RNA-seq

Area of Science:

• Toxicology and Pharmacology
• Molecular Biology
• Biochemistry

Background:

• Beta-cypermethrin (β-CYP) exposure causes liver injury.
• Selenium's protective effects against β-CYP-induced liver injury are known, but the molecular mechanisms are unclear.
• Understanding these mechanisms is crucial for developing effective treatments.

Purpose of the Study:

• To elucidate the molecular mechanisms of selenium's protective effects against β-CYP-induced liver injury.
• To identify key genes and pathways involved in selenium's therapeutic action.
• To construct a regulatory network for selenium's protective effects.

Main Methods:

• RNA sequencing was used to analyze dynamic gene expression changes in liver injury mice treated with sodium selenite (Na2SeO3).
• Bioinformatic analysis identified significantly enriched genes and pathways.
• Quantitative real-time PCR (qRT-PCR) was employed to validate the expression patterns of key genes.

Main Results:

• Ten genes, including Cyp2j11, Cyp2b10, Cyp3a13, Dhrs9, Socs2, Stat4, Gm13305, Cyp3a44, Retsat, and Cyp26b1, were significantly associated with selenium's protective effects.
• These genes were enriched in pathways related to retinol metabolism, linoleic acid metabolism, and the Jak-STAT signaling pathway.
• Gene expression patterns were validated by qRT-PCR, confirming the identified molecular targets.

Conclusions:

• Selenium exerts its protective effects against β-CYP-induced liver injury through the modulation of retinol and linoleic acid metabolism, and the Jak-STAT signaling pathway.
• The identified genes and regulatory network provide novel insights into the molecular basis of selenium's hepatoprotective action.
• This study contributes to understanding the molecular mechanisms underlying selenium's therapeutic potential in mitigating pesticide-induced liver damage.