title: Chemokine/cytokine production by mononuclear cells from human lymphoid tissues and their modulation by Mycobacterium tuberculosis antigens.
abstract: The majority of knowledge about the role of cytokines and chemokines in controlling Mycobacterium tuberculosis infection mainly derives from animal models. In humans, this knowledge is still mainly limited to the blood compartment or accessible lymphoid organs, such as tonsils. Here, we studied cytokine and chemokine production and their modulation by M. tuberculosis antigens in mononuclear cells from human blood, spleen and hilar lung lymph nodes. Results show that the kinetics and magnitude of cytokine and chemokine production varied according to the tissue of cell origin. Mycobacterium tuberculosis antigens enhanced cytokine and chemokine production in blood, but the enhancement was restricted in spleen and hilar lung lymph node cells. We show, for the first time in humans, differences in cytokine and chemokine microenvironments according to lymphoid tissues, and suggest that these differences may affect the way cells respond to M. tuberculosis infection.
authors.affiliation: Grupo de Inmunología Celular e Inmunogenética, Sede de Investigación Universitaria, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia. marias@sgul.ac.uk
authors.forename: Mauricio A
authors.initials: MA
authors.lastname: Arias
authors.forename: Adelis E
authors.initials: AE
authors.lastname: Pantoja
authors.forename: Gabriela
authors.initials: G
authors.lastname: Jaramillo
authors.forename: Yúrika P
authors.initials: YP
authors.lastname: López
authors.forename: Natalia
authors.initials: N
authors.lastname: Mejía
authors.forename: Camila
authors.initials: C
authors.lastname: Mejía
authors.forename: Sara C
authors.initials: SC
authors.lastname: Paris
authors.forename: Robin J
authors.initials: RJ
authors.lastname: Shattock
authors.forename: George E
authors.initials: GE
authors.lastname: Griffin
authors.forename: Luis F
authors.initials: LF
authors.lastname: García
mesh_terms: D000293:Adolescent; D000328:Adult; D000942:Antigens, Bacterial / Q000276:immunology*; D001769:Blood / Q000276:immunology; D002478:Cells, Cultured; D018925:Chemokines / Q000096:biosynthesis*; D002648:Child; D016207:Cytokines / Q000096:biosynthesis*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000276:immunology*; D008221:Lymphoid Tissue / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D009169:Mycobacterium tuberculosis / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial; D018925:Chemokines; D016207:Cytokines