I am trying to determine whether microglia are undergoing apoptosis in an experiment. I tried Active Caspase 3 was unable to get the antibody to work (IF).

I was considering a different apoptotic marker (Annexin V), however I am unsure whether microglia express/transport phosphatidylserine  to the cell surface when undergoing cell death like neurons, and whether this antibody would work. 

Any ideas?

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