Detection of Nanoparticle-Mediated Total Oxidative Stress in T Cells Using CM-H2DCFDA Dye.

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Oxidative stress is commonly observed in cells following exposure to nanoparticles. Both negative (e.g., cytotoxicity and inflammation) and beneficial (e.g., anti-inflammatory and tumor growth inhibiting) responses have been linked in the literature to oxidative stress, emphasizing the importance of developing methodologies to study this phenomenon in cells following their exposure to nanoparticles. In the protocol described herein, primary human T cells isolated from the peripheral blood of healthy donor volunteers are treated with nanoparticles and controls, and the generation of reactive oxygen species is detected by flow cytometry using CM-H2DCFDA reagent.