Ex vivo CTL กิจกรรมของสมอง lymphocytes จากการติดเชื้อ BDV mice is directed mainly against ไวรัส nucleoprotein p40. Brain lymphocytes from severely diseased MRL mice (A) or VV-specific CTLs (B) were ใช้เป็น effectors บนการติดเชื้อของ VV L929 target cells expressing the indicated recombinant BDV proteins หรือ irrelevantโปรตีนควบคุม . (C) CTL assay with lymphocytes จากสมองของ a severelydiseased CBA/J (H-2k) mouse. (D) Spleen lymphocytes of MRL mice lack BDV-specific CTLs. Effector cells จากสมองหรือ spleens of either severely diseased BDV-infected or healthy mock-การติดเชื้อ MRL mice were incubated with L929 target cells expressing BDV p40. Brain lymphocyte preparations from uninfected MRL mice usually contained less than 105 lymphocytes. They were resuspended in the same volume of medium as lymphocytes from brains of diseased animals, and identical volumes of both cell preparations were used in the CTL assays. (E) MHC restriction of CTL activity. Target cells were either MC57G cells (H-2b) or L929 cells (H-2k) infected with the indicated vaccinia viruses. Effector cells were from brains of MRL (H-2k) mice with ความรุนแรง