Bone Marrow-Derived Macrophage (BMDM ) Infection by Listeria monocytogenes

Area of Science:

• Microbiology
• Immunology
• Bacterial Pathogenesis

Background:

• Listeria monocytogenes is a versatile bacterium, existing as an environmental saprophyte and a mammalian parasite.
• Studying the pathogenic lifestyle of L. monocytogenes requires mimicking the mammalian host environment.
• Bone marrow-derived macrophages (BMDMs) are a widely used primary immune cell model for bacterial infection studies.

Purpose of the Study:

• To provide a detailed protocol for the extraction, preparation, and storage of BMDMs.
• To outline the application of BMDMs in L. monocytogenes infection experiments.
• To facilitate research on L. monocytogenes pathogenesis using a standardized immune cell model.

Main Methods:

• Isolation of primary immune cells from bone marrow.
• Cell culture and preparation of BMDMs.
• Infection of BMDMs with Listeria monocytogenes.

Main Results:

• Established a reproducible method for obtaining functional BMDMs.
• Demonstrated the utility of BMDMs for studying L. monocytogenes interactions.
• Provided a foundation for transcriptomic and other molecular analyses of host-pathogen interactions.

Conclusions:

• BMDMs represent a valuable and accessible model system for investigating L. monocytogenes pathogenesis.
• Standardized protocols enhance the reliability and comparability of infection studies.
• This methodology supports research into host-pathogen dynamics and bacterial adaptation.