Ultracentrifugation-Based Isolation of Legionella pneumophila Outer Membrane Vesicles

Key Points

• The purified outer membrane vesicles (OMVs) show significant pro-inflammatory potential on macrophages, and may influence immune responses.
• Key evidence includes the isolation of OMVs enriched in membrane proteins and lipopolysaccharides, indicating their importance in pathogenesis.
• Isolation was achieved through sequential centrifugation, sterile filtration, and ultracentrifugation, ensuring purity for further studies.
• This approach highlights the potential for using isolated OMVs in studying Legionella-related immune responses, warranting further investigation.