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Interactions between Jumbo Phage SA1 and Staphylococcus: A Global Transcriptomic Analysis.

Bingyan Zhang1,2, Jiayi Xu2, Xiaoqi He2

  • 1College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China.

Microorganisms
|August 26, 2022
PubMed
Summary
This summary is machine-generated.

Jumbo phage SA1 infection alters Staphylococcus host gene expression, impacting metabolism and defense systems. Understanding these interactions is key for developing effective phage therapies against S. aureus.

Keywords:
RNA-seqStaphylococcusjumbo phagetranscriptome

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Area of Science:

  • Microbiology
  • Genomics
  • Bacteriology

Background:

  • Staphylococcus aureus (S. aureus) is a significant zoonotic pathogen affecting humans and cattle.
  • Lytic phages show potential for controlling S. aureus, but host-phage interactions require further investigation for clinical use.

Purpose of the Study:

  • To investigate the transcriptomic changes in Staphylococcus host JTB1-3 during infection with jumbo phage SA1.
  • To elucidate the host-phage interaction mechanisms at a molecular level.

Main Methods:

  • RNA sequencing (RNA-seq) was employed to analyze host gene expression profiles during high multiplicity of infection (MOI).
  • Reverse transcription quantitative polymerase chain reaction (RT-qPCR) was used for validation of RNA-seq results.
  • Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed.

Main Results:

  • Phage SA1 reprogrammed host transcription, categorizing genes into early, middle, and late expression phases.
  • Only 35.73% of host genes were differentially expressed, indicating a targeted resource utilization by the phage.
  • Phage infection significantly impacted host nucleotide, protein, and energy metabolism.
  • Expression of host genes related to anti-phage defenses, virulence, and antibiotic resistance was notably altered.

Conclusions:

  • This study provides novel insights into the molecular interplay between jumbo phages and Gram-positive bacterial hosts.
  • The findings offer a foundation for advancing phage therapy strategies against S. aureus infections.
  • Understanding host gene modulation by phages is crucial for optimizing phage-based treatments and antibiotic research.