Journal: PLoS ONE
Article Title: Identification of Mycobacterium tuberculosis -Specific Th1, Th17 and Th22 Cells Using the Expression of CD40L in Tuberculous Pleurisy
doi: 10.1371/journal.pone.0020165
Figure Lengend Snippet: PFCs were stimulated with ESAT-6/CFP-10 peptides, anti-CD28 and anti-CD49d mAbs in the presence of a fluorescently labeled anti-CD40L monoclonal antibody and monensin. CD4 + T cells were first isolated with magnetic-beads. (A) The expression of CD40L within purified CD4 + T cells was demonstrated, and (B) CD4 + CD40L + and CD4 + CD40L − T cells were further sorted by flow cytometry. (C) Sorted CD4 + CD40L + or (D) CD4 + CD40L − T cells were co-cultured with purified CD14 cells independently in the presence of ESAT-6/CFP-10 peptides. The intracellular expression of IFN-γ, IL-2 or TNF-α by sorted CD4 + CD40L + and CD4 + CD40L − T cells was detected by flow cytometry. (E) The amounts of IFN-γ, IL-2, TNF-α, IL-17 and IL-22 were measured supernatants were measured using ELISA.
Article Snippet: Purified anti-CD28 (clone CD28.2) and anti-CD49d (clone 9F10) mAbs were purchased from BD Biosciences (San Jose, CA).
Techniques: Labeling, Isolation, Magnetic Beads, Expressing, Purification, Flow Cytometry, Cell Culture, Enzyme-linked Immunosorbent Assay