title: Turning on the off switch: regulation of anti-viral T cell responses in the liver by the PD-1/PD-L1 pathway.
authors.forename: Arash
authors.initials: A
authors.lastname: Grakoui
authors.forename: E
authors.initials: E
authors.lastname: John Wherry
authors.forename: Holly L
authors.initials: HL
authors.lastname: Hanson
authors.forename: Christopher
authors.initials: C
authors.lastname: Walker
authors.forename: Rafi
authors.initials: R
authors.lastname: Ahmed
mesh_terms: D000818:Animals; D015703:Antigens, CD / Q000378:metabolism*; D060890:B7-H1 Antigen; D006801:Humans; D008099:Liver / Q000276:immunology / Q000821:virology*; D013601:T-Lymphocytes / Q000276:immunology / Q000378:metabolism / Q000821:virology*; D014777:Virus Diseases / Q000276:immunology*
chemical_list: D015703:Antigens, CD; D060890:B7-H1 Antigen; C423236:CD274 protein, human