Figure 4.
Measurement of IFN-γ in activated remitting patient samples in the presence or absence of calpain inhibitor, calpeptin. PBMCs, isolated from MS patients (n=3) were activated with anti-CD3/CD28 plus or minus calpeptin (100μM). PBMCs treated with media alone were used as control (vehicle). Supernatants were collected after 24 hours for analysis of IFN-γ using IFN-γ-specific ELISA kit. It is important to note that the patient samples without activation produced significant amount of IFN-γ (vehicle).