Involvement of adherence and adhesion Staphylococcus epidermidis genes in pacemaker lead-associated infections

Area of Science:

• Microbiology
• Infectious Diseases
• Genetics

Background:

• Staphylococcus epidermidis is a common cause of device-related infections.
• Attachment and adhesion genes play crucial roles in bacterial pathogenesis.
• Understanding these genes can help in managing device-associated infections.

Purpose of the Study:

• To investigate the prevalence of attachment genes (fbe, atlE) and an adhesion gene (ica) in Staphylococcus epidermidis.
• To compare gene detection rates in strains from pacemaker-related infections (PMI) and intravascular-catheter-related infections (IVCI) with saprophytic strains.

Main Methods:

• Genomic DNA extraction from Staphylococcus epidermidis strains.
• Polymerase chain reaction (PCR) for the detection of fbe, atlE, and ica genes.
• Statistical analysis of gene detection rates across different strain groups.

Main Results:

• The detection rates for fbe and atlE genes were similar in both PMI and IVCI strains.
• The detection rate for the ica gene was similar in PMI strains and saprophytic strains.
• Differences in gene prevalence suggest distinct roles in different infection settings.

Conclusions:

• Attachment genes fbe and atlE appear consistently involved in Staphylococcus epidermidis device infections.
• The adhesion gene ica shows a prevalence pattern more aligned with saprophytic strains in pacemaker infections.
• These findings contribute to understanding the genetic basis of Staphylococcus epidermidis virulence in specific clinical contexts.