Journal: Developmental and comparative immunology
Article Title: CD9 expression in porcine blood CD4 + T cells delineates two subsets with phenotypic characteristics of central and effector memory cells.
doi: 10.1016/j.dci.2022.104431
Figure Lengend Snippet: Fig. 1. MAb 4H5CR4 recognizes porcine CD9. (A) Reactivity of mAb 4H5CR4 with PBMC subsets: PBMCs were stained with mAbs to CD3, CD4, CD8α, CD8β, γδTCR, CD16, CD21, CD172a, IgM or Siglec-10, and APC-conjugated-goat anti-mouse Ig (y-axis), followed by biotin-conjugated mAb 4H5CR4 and PE-streptavidin (x-axis). Quadrants were set by background staining with irrelevant isotype-matched mAbs. Numbers indicate the percentage of cells within the respective quadrants. Results are representative of at least three independent experiments with cells from 8 to 12-month-old pigs. (B) Molecular characterization: Lysates from alveolar macro phages were resolved by 12% SDS-PAGE under reducing conditions, transferred to nitrocellulose membranes, and probed with mAb 4H5CR4 (1) or an irrelevant isotype-matched mAb (2). Numbers in the right indicate position and size of MW markers. Results are representative of two independent experiments. (C) CHO cells transiently transfected with pCD9-GFP construct were stained with mAb 4H5CR4, or an IgG1 control antibody followed by APC-goat F(ab’)2 anti-mouse Igs and analyzed by flow cytometry. A control staining of non-transfected CHO cells is also shown.
Article Snippet: After a washing step with PBS, cells (106/well) were incubated with mAbs to different surface antigens (2E3, CD4, CD8α, 4H5CR4) for 30 min at 4 ◦C, followed by FITC-conjugated goat anti-mouse IgM, APC-conjugated goat anti-mouse IgG1, PE-Cy7-conjugated goat anti-mouse IgG2a (all from Southern Biotech) and BV421-conjugated goat anti-mouse IgG2b (Jackson B. Álvarez et al. Developmental and Comparative Immunology 133 (2022) 104431 ImmunoResearch Laboratories, Pennsylvania, USA).
Techniques: Staining, SDS Page, Transfection, Construct, Control, Flow Cytometry