Mixed Lymphocyte Reaction (MLR)
PBMC Proliferation
PBMCs were collected from 2 healthy donors: Donor 1 (Responder) and Donor 2 (Stimulator). PBMCs were then treated with Mitomycin for 30 minutes and seeded along with PBMCs stimulated with PHA for 5-days. The proliferation was assessed by BrdU incorporation. Mitomycin C treatment reduced the proliferation of PBMCs when compared to Untreated (Control) cells. PHA increased the proliferation of the PBMCs confirming the viability of the PBMCs after isolation (n=6±SEM).
Mixed Lymphocyte Reaction- One-way and Two-way
MLR-One-way: PBMCs from stimulator were treated with Mitomycin C to inhibit proliferation. Equal numbers of the stimulator and Responder cells were then co- cultured for 5 days. Mitomycin C reduced the proliferation of Stimulator cells. Hence, any proliferation observed in the MLR-One-way is observed from the Responder cells only.
MLR- Two-way: PBMCs from both responder and stimulator were co-cultured without Mitomycin C. The proliferation was recorded from both the responder and the stimulator cells.


Responder cells: CD4+ T-cells from an Allogenic Donor. Stimulator cells: Mo-DCs from 3 healthy Donors.
The supernatants after co-culture were analysed for IFN-gamma release which is an indirect measurement of T-cell activation.
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