Journal: iScience
Article Title: Platelet DKK1 promotes tolerogenic dendritic cells and non-healing responses in cutaneous leishmaniasis
doi: 10.1016/j.isci.2026.115090
Figure Lengend Snippet: Impaired CD8 + IL-10 + IFN-γ − , CD4 + IL-10 + IFN-γ − , and CD4 + IL-10 + IFNg + T cells in MyD88 (PKO) - and DKK1 (PKO) -infected mice on day 14 PI (A–M) Six-week-old female BALB/c, MyD88 (PKO) , and DKK1 (PKO) mice were challenged with infective metacyclic promastigote (2 ×10 6 parasites, n = 5 per group) of L . major via the footpad. Non-infected BALB/c mice ( n = 5) were given 0.9% NaCl saline. Two weeks post-infection, the draining and non-draining lymph node cells were isolated. Lymph node cells were incubated with a cell stimulation cocktail for 5 h. After a further 3 h in BFA, cells were stained for intracellular IL-10 and IFN-γ. The stained lymph node cells from each mouse in BALB/c, MyD88 (PKO) - and DKK1 (PKO) -infected mice were determined for the percentage and frequency of CD4 + and CD8 + T cells (A, B, C, and B), percentage and MFI of CD8 + IFN-γ + or CD8 + IL-10 + T cells (E, F, G, and H), percentage and MFI of CD4 + IFN-γ + or CD4 + IL-10 + T cells (I, J, K, and L), and percentage of CD4 + IFN-γ + IL-10 + T cells (M) by flow cytometry. Representative flow cytometry dot plots showing the analyses CD4 + and CD8 + T cells, CD8 + IFN-γ + or CD8 + IL-10 + T cells, CD4 + IFN-γ + or CD4 + IL-10 + T cells, and CD4 + IFN-γ + IL-10 + T cells performed on day 14 PI is indicated ( A). Results are presented as mean ± SEM. and are representative of triplicate experiments. Data analysis was done using one-way ANOVA followed by Bonferroni’s post hoc test ∗ p < 0.05, ∗∗ p < 0.01, ∗∗∗ p < 0.001, and “ns” indicates non-significant.
Article Snippet: Rested immature dendritic cells were stimulated with 100 ng/mL of recombinant DKK1 (R & D Systems), 20 ng/mL of recombinant IL-10 (Thermo Fisher Scientific), or 10 ng/mL of recombinant TNF-α (Thermo Fisher Scientific).
Techniques: Infection, Saline, Isolation, Incubation, Cell Stimulation, Staining, Flow Cytometry