Hello,
I am trying to study the cytokine profile of PDL1+ TAMs and will be isolating them from human tumor tissue. I am confused as to directly doing intracellular staining for my cytokines of interest or stimulating the cells prior (similar to using PMA+ionomycin for T cells)?
My concern is the agents mostly used in literature are LPS+IFNG or GM-CSF and those could drive my macrophages towards a skewed M1 or M2 direction and I do not want that.
Any thoughts?