The mRNA and miRNA profiles of goat bronchial epithelial cells stimulated by Pasteurella multocida strains of serotype A and D

PeerJ. 2022 Mar 18:10:e13047. doi: 10.7717/peerj.13047. eCollection 2022.

Abstract

Pasteurella multocida (P. multocida) is a zoonotic bacterium that predominantly colonizes the respiratory tract and lungs of a variety of farmed and wild animals, and causes severe respiratory disease. To investigate the characteristics of the host immune response induced by P. multocida strains of serotype A and D, high-throughput mRNA-Seq and miRNA-Seq were performed to analyze the changes in goat bronchial epithelial cells stimulated by these two serotypes of P. multocida for 4 h. Quantitative RT-PCR was used to validate the randomly selected genes and miRNAs. The results revealed 204 and 117 differentially expressed mRNAs (|log2(Fold-change)| ≥ 1, p-value < 0.05) in the P. multocida serotype A and D stimulated groups, respectively. Meanwhile, the number of differentially expressed miRNAs (|log2(Fold-change)| > 0.1, p-value < 0.05) were 269 and 290, respectively. GO and KEGG enrichment analyses revealed 13 GO terms (p-value < 0.05) and four KEGG pathways (p-value < 0.05) associated with immunity. In the serotype A-stimulated group, the immune-related pathways were the GABAergic synapse and Toll-like receptor signaling pathways, while in the serotype D-stimulated group, the immune-related pathways were the phagosome and B cell receptor signaling pathways. Based on the predicted results of TargetScan and miRanda, the differentially expressed mRNA-miRNA network of immune-related GO terms and KEGG pathways was constructed. According to the cell morphological changes and the significant immune-related KEGG pathways, it was speculated that the P. multocida serotype D strain-stimulated goat bronchial epithelial cells may induce a cellular immune response earlier than serotype A-stimulated cells. Our study provides valuable insight into the host immune response mechanism induced by P. multocida strains of serotype A and D.

Keywords: Goat bronchial epithelial cells; Immune response; Pasteurella multocida; mRNA-Seq; miRNA-Seq.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Epithelial Cells
  • Goats / genetics
  • Lung / microbiology
  • MicroRNAs* / genetics
  • Pasteurella multocida* / genetics
  • RNA, Messenger / genetics
  • Serogroup

Substances

  • RNA, Messenger
  • MicroRNAs

Grants and funding

This study was supported by Academician Innovation Platform Project of Hainan Province (No. YSPTZX202013), China Agriculture Research System of MOF and MARA (CARS-38), Academician Group Innovation Centre of Hainan Province. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.