Combined Prokaryotic Transcriptomics and Proteomics Analysis of Clinical Trueperella pyogenes Isolates with
Ning Liu1,2, Qian Li1, Qiang Shan1
1College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
Abstract:
Trueperella pyogenes is a widely distributed opportunistic pathogenic bacterium that can infect livestock, wildlife, community animals, and humans, resulting in suppurative infection of tissue and organ mucosa, including pneumonia, liver abscessation, mastitis, metritis, endocarditis, and osteoarthritis. TP1804 and TP1808 were isolated from the uterine lavage fluid of cows with endometritis. This study analyzed the prokaryotic transcriptomics and proteomics of two strains of T. pyogenes with similar growth curves but different cytotoxicity. Studying the metabolic mechanisms of these differentially expressed genes and proteins can greatly promote the discovery of new biomarkers and improve the accuracy of biomarker identification, which is of great value for molecular mechanisms, biomarkers, early diagnosis of diseases, molecular typing, and prognosis. Our results indicate that the control of the virulence by tRNAs to bacteria during ribosome biosynthesis is crucial.
Insights
Trueperella pyogenes, a pathogen causing infections in animals and humans, was studied using transcriptomics and proteomics. Researchers found that transfer RNAs (tRNAs) are crucial in controlling bacterial virulence during ribosome biosynthesis.
Area of Science:
- Microbiology and Infectious Diseases
- Bacterial Pathogenesis
- Molecular Biology
Background:
- Trueperella pyogenes is an opportunistic pathogen causing suppurative infections in various hosts, including livestock and humans.
- Specific strains, TP1804 and TP1808, were isolated from cows with endometritis, serving as models for this study.
- Understanding T. pyogenes virulence mechanisms is vital for developing diagnostic and therapeutic strategies.
Purpose of the Study:
- To analyze the transcriptomic and proteomic differences between two T. pyogenes strains with varying cytotoxicity.
- To investigate the metabolic mechanisms underlying differential gene and protein expression.
- To identify potential biomarkers for early disease diagnosis, molecular typing, and prognosis.
Main Methods:
- Prokaryotic transcriptomics and proteomics were employed to compare two T. pyogenes strains.
- Comparative analysis of gene and protein expression profiles.
- Investigation of metabolic pathways and their correlation with virulence.
Main Results:
- Significant differences in gene and protein expression were observed between the two T. pyogenes strains, despite similar growth curves.
- The study identified key metabolic pathways and molecular mechanisms associated with cytotoxicity.
- A crucial role for transfer RNAs (tRNAs) in regulating bacterial virulence during ribosome biosynthesis was highlighted.
Conclusions:
- Control of virulence by tRNAs during ribosome biosynthesis is a critical factor in T. pyogenes pathogenesis.
- Differential gene and protein expression analysis provides insights into T. pyogenes virulence.
- Findings contribute to the discovery of novel biomarkers for improved disease diagnosis and management.
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