Ex Vivo T Cell Stimulation in the Pancreatic Tumor: A Method to Increase Cytokine Production in T Cells

- Activated T cells move to the pancreatic tumor microenvironment, where they release cytokines like interferon-gamma, or IFN gamma, and tumor necrosis factor-alpha, or TNF alpha, which helps mediate an effective antitumor response. As cytokines rapidly move out of the T cell, the intracellular levels can be undetectable. Therefore, the T cell requires stimulation to increase basal cytokine production for studying their therapeutic role in the tumor.

Begin by taking a suspension of tumor cells from the mouse's pancreas. Now, treat the T cells present in cell suspension with a cytokine stimulation cocktail and incubate the mix for desired time. This cocktail facilitates the release of calcium ions from the endoplasmic reticulum to the cytoplasm. High calcium levels, in turn, activate certain nuclear transcription factors, leading to an increase in cytokine production in the T cells.

Next, treat the cells with a protein transport inhibitor cocktail and incubate the tube. This cocktail blocks cytokine transport from the endoplasmic reticulum to the golgi complex, resulting in the accumulation of cytokines within the cell. Finally, stain the cells using appropriate intracellular marker