Detection of exogenous DNA uptake by murine dendritic cells

This protocol has been developed to measure exogenous DNA uptake by murine dendritic cells (DCs) using supernatant containing cellular debris, which allows for DNA uptake in the absence of transfection reagents. Inhibitors or antibodies that alter the process can be added, and either flow cytometry or fluorescent microscopy can be used to measure DNA uptake. This is intended to mimic the exposure of DCs to dying cells in the tumor microenvironment or other pathological conditions of high cellular death. For complete details on the use and execution of this protocol, please refer to de Mingo Pulido et al. (2021).