Optimize a multiplex ELISA cytokine panel to quantify IL-6, TNF-α, and IFN-γ secretion from stimulated macrophages.
Enumerate antigen-specific IFN-γ-secreting T cells at the single-cell level in human PBMCs using an enzymatic IFN-γ ELISpot, reporting spot-forming units (SFU) per 10^6 PBMCs after stimulation with a defined peptide pool.
Quantify the frequency and proliferative capacity of antigen-specific CD4+ T cells in human peripheral blood mononuclear cells (PBMCs) after recall antigen stimulation, using CFSE dye dilution read out by flow cytometry.
Establish and validate a 16-color spectral flow cytometry panel to resolve human T-cell lineage, memory differentiation (naive/Tcm/Tem/Temra), and activation/exhaustion states from a single PBMC sample for high-dimensional immunophenotyping.
Quantify the concentrations of secreted IL-2 and IFN-γ cytokines in culture supernatants from activated human T cells using validated quantitative sandwich ELISAs, with results interpolated from a recombinant standard curve and reported in pg/mL.
Quantify the suppressive function of human CD4+CD25+CD127lo regulatory T cells (Tregs) by measuring their dose-dependent inhibition of CFSE-labeled autologous responder T-cell proliferation under anti-CD3/CD28 stimulation.