Published customer image: Effect of anti-CD2 mAbs on bovine NK cell functions. (A) IFN-? response from NK cells caused by cross-linking of CD2. Plastic wells were pre-coated with two different mAbs against bovine CD2, along with NKp46-mAb as positive control and CD8-mAb or medium as negative controls. rbIL-2 activated NK cells were added and incubated for 24 h in the presence or absence of rbIL-12 (0.5 U/ml), and IFN-? content in the supernatants analyzed by an ELISA. Data shown are means +/- SD of two to four individual animals. (B-C) IL-2 activated NK cell killing of the bovine target lines BL3.1 and MDBK in a 4 h 51Cr-release assay, with addition of the indicated mAbs for blocking. CD2mAb I = BAQ95A, CD2 mAb II = MUC2A, CD8 mAb = CACT80C, NKp46 mAb = AKS1. (D) As above, using murine Fc-receptor bearing P815 target cells to obtain a redirected lysis effect. Data shown in (B-D) are from one animal representative of three to five.From: Boysen et al. BMC Immunology 2006 7:10.

Staining of bovine peripheral blood lymphocytes with Mouse anti Bovine CD335 (MBS224513) followed by Goat anti Mouse IgG (H/L):FITC (MBS235142). A small positive peak representing NK cells can be identified

Published customer image: Oenothein B induces IL-2Ra or CD69 on bovine and human NK cells. (A) Bovine PBMCs (105 cells/well) were treated with 20 ug/ml oenothein B in X-VIVO medium for 24 hrs, and IL-2Ra expression on NK cells was measured by multi-color flow cytometry. Representative examples of two-color flow cytometry plots comparing IL-2Ra staining on oenothein B-treated and untreated bovine NK cells (CD335+) from each animal are shown. (B) Human PBMCs (105 cells/well) were treated with 40 ug/ml oenothein B in cRPMI medium for 48 hrs. CD69 expression on NK cells was then measured by flow cytometry. Representative examples of two-color flow cytometry plots comparing CD69 staining on oenothein B-treated and untreated human NK cells from each donor are shown.From: Ramstead AG, Schepetkin IA, Quinn MT, Jutila MA (2012) Oenothein B, a Cyclic Dimeric Ellagitannin Isolated from Epilobium angustifolium, Enhances IFN? Production by Lymphocytes. PLoS ONE 7(11): e50546.

Published customer image: CD2 distribution on bovine NK cells in peripheral blood and during cell culture. (A) CD2 expression by PBMCs from healthy cattle, and in NKp46-selected cells cultured for the indicated time in the presence of 100U/ml rbIL-2. Results were obtained by two-colour flow cytometry, gating for viable lymphocytes. Data shown are from one animal representative of 19. (B) Monitoring of cell divisions of CD2- and CD2+ NK cell populations during three and six days of rbIL-2 (100U/ml) stimulation. NKp46-selected cells were labelled with CFSE the day after isolation and CFSE intensity (filled histograms) measured in flow cytometry on the indicated days, gating for CD2- or CD2+ viable cells. Solid line open histograms show non-dividing NK cells, cultured in the presence of 1U/ml rbIL-2, while broken line open histograms show unlabeled stimulated NK cells. Data shown are from one animal representative of five. (C) Stability of CD2 expression in NK cell subsets cultured separately. NK cells separated with immunomagnetic beads for absence or presence of CD2 were cultured separately for eleven days in the presence of IL-2, monitoring CD2 expression at three different time points (filled histograms). Day 1 corresponds to the day of separation, 24 h after primary NK cell isolation. Open histograms show secondary mAb controls. Data shown are from one animal representative of eight.From: Boysen et al. BMC Immunology 2006 7:10.