A non-viral transfection method for oral mucosal cells was investigated usi
ng a modified transfection method and five commercial transfection reagents
. The CellFECTIN(TM) gave the highest expression of a transfected gene. Whe
n the mucosal cells were transfected with 0.3 ng DNA/cell, the transfection
efficiency was optimal, and the production of a reporter protein increased
up to ten times higher than those with the other transfection reagents.