This video demonstrates a method to study the responses to Mycobacterium tuberculosis infection in human M1 and M2 polarized monocyte-derived macrophages. The use of flow cytometry enables the study of a variety of surface markers associated with infected and uninfected macrophage populations.
Protocol
1. Mtb infection of monocyte-derived cells NOTE: The following steps must be performed in a BSL-3 facility. Resuspend the Mycobacterium tuberculosis (Mtb) pellet in serum-free RPMI medium in a new sterile 50 mL tube and adjust the final bacterial concentration to approximately 5 x 106 CFU/mL. Remove the cell culture medium from the 6-well plate(s) containing monocyte-derived cells. Add 1 mL of serum-free RPMI medium to…
A Fully Differentiated Macrophage Infection Model of Monocyte-Derived Cells with Mycobacterium tuberculosis. J. Vis. Exp. (Pending Publication), e21694, doi: (2023).