title: TSLP-induced placental DC activation and IL-10(+) NK cell expansion: comparative study based on BALB/c x C57BL/6 and NOD/SCID x C57BL/6 pregnant models.
abstract: Thymic stromal lymphopoietin (TSLP)-TSLP receptor (TSLP-R) interactions activate CD11c(+) dendritic cells (DCs) and increase epithelial cell Th2-type cytokine production. We detected intracellular TSLP expression on CK7(+) trophoblast cells and TSLP-R expression on placental DCs from pregnant BALB/cxC57BL/6 and NOD/SCIDxC57BL/6 mice on gestational day 12.5. Murine recombinant TSLP activated DCs from BALB/c mice, with increased CD80 and CD83 expressions; TSLP-activated DCs induced IL-10-producing NK cell expansion. This was abrogated by anti-TSLP Ab or by culturing CD49b(+) NK cells alone. No TSLP-DC-induced IL-10(+)CD49b(+) cell expansion occurred when DCs and CD49b(+) cells were cultured separately. Although TSLP-induced DC activation occurred in NOD/SCID mice, the IL-10(+) NK cell percentage was unchanged. CK7(+) trophoblast cells may activate placental DCs via a TSLP-TSLP-R interaction and induce DC-dependent placental NK cell IL-10 production. TSLP-DC and NK cell contact appears necessary for IL-10(+)CD49b(+) cell expansion. Placental NK cells from NOD/SCIDxC57BL/6 mice appear less sensitive to TSLP-DC induction.
authors.affiliation: Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, Jinan University, Guangzhou, China. yilinonline@gmail.com
authors.forename: Yi
authors.initials: Y
authors.lastname: Lin
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Zhong
authors.forename: Weizai
authors.initials: W
authors.lastname: Shen
authors.forename: Yijing
authors.initials: Y
authors.lastname: Chen
authors.forename: Jianbo
authors.initials: J
authors.lastname: Shi
authors.forename: Jingfang
authors.initials: J
authors.lastname: Di
authors.forename: Shan
authors.initials: S
authors.lastname: Zeng
authors.forename: Shigeru
authors.initials: S
authors.lastname: Saito
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D049109:Cell Proliferation; D018920:Coculture Techniques; D016207:Cytokines / Q000378:metabolism*; D003713:Dendritic Cells / Q000276:immunology*; D020964:Embryo Loss; D005260:Female; D007136:Immunoglobulins; D007371:Interferon-gamma / Q000096:biosynthesis / Q000276:immunology; D016753:Interleukin-10 / Q000096:biosynthesis / Q000276:immunology; D007694:Killer Cells, Natural / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D016131:Lymphocyte Subsets / Q000276:immunology / Q000378:metabolism; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D016688:Mice, Inbred NOD; D016513:Mice, SCID; D010920:Placenta / Q000276:immunology* / Q000378:metabolism; D011247:Pregnancy; D018121:Receptors, Cytokine / Q000378:metabolism*; D014327:Trophoblasts / Q000276:immunology* / Q000378:metabolism; D000094632:Thymic Stromal Lymphopoietin
chemical_list: D016207:Cytokines; D007136:Immunoglobulins; D018121:Receptors, Cytokine; C410591:Tslpr protein, mouse; D016753:Interleukin-10; D007371:Interferon-gamma; D000094632:Thymic Stromal Lymphopoietin; C000721967:TSLP protein, mouse