Exploring the effects of IFN-τ on LPS-induced endometritis in cows based on transcriptomics

Area of Science:

• Veterinary Immunology
• Molecular Biology
• Reproductive Biology

Background:

• Endometritis in dairy cows significantly impacts reproductive performance and milk yield, causing economic losses.
• Lipopolysaccharide (LPS) triggers endometrial inflammation via the NF-κB pathway.
• Interferon-tau (IFN-τ) possesses anti-inflammatory properties relevant to uterine health.

Purpose of the Study:

• To investigate the molecular mechanisms of LPS-induced inflammation in bovine endometrial cells (BENDs).
• To explore the anti-inflammatory effects of IFN-τ on BENDs using transcriptomics.
• To elucidate the regulatory network of IFN-τ in mitigating bovine endometritis.

Main Methods:

• Establishment of an LPS-induced inflammatory model in BENDs.
• RNA sequencing (RNA-seq) to analyze mRNA expression profiles.
• Gene Ontology (GO) and KEGG pathway enrichment analysis of differentially expressed mRNAs (DEmRNAs).

Main Results:

• Significant numbers of DEmRNAs were identified between control, LPS-treated, and IFN-τ + LPS-treated groups.
• DEmRNAs were primarily involved in immune response pathways (e.g., NF-κB, RIG-I-like receptor signaling), signal transduction, and metabolic processes.
• IFN-τ treatment modulated pathways related to host defense, inflammation, and cell communication.

Conclusions:

• This study elucidates the molecular basis of bovine endometrial cells' response to microbial stimuli.
• IFN-τ demonstrates significant anti-inflammatory effects by targeting multiple synergistic pathways.
• Findings provide theoretical support for interferon therapy in treating bovine endometritis.