NFKB1 and infection: We transduced iBMDMs (mouse BMDMs immortalized by infection with J2 retrovirus (33)) with lentiviral particles containing an NFκB inducible GFP construct and then clonally selected successfully transduced iBMDMs to generate monoclonal reporter cells (hereafter referred to as iBMDMNFκB-GFP), which express GFP when NFκB is active.