mixed lymphocyte response
Also found in: Acronyms.
mixed lymphocyte response (MLR)a reaction which occurs when LYMPHOCYTES from two genetically distinct populations are cultured together, the T-cells of each responding to the antigens of the other by differentiating and proliferating.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005