GFAP and experimental autoimmune encephalomyelitis: Recently, however, bioluminescent imaging of GFAP activity using transgenic GFAP-luc mice has been reported to measure astrogliosis in animal models of kainic lesions [5], prion infection [6], ischemic injury [7], and experimental autoimmune encephalomyelitis (EAE)[8], but has not been described in a tumor model.