Dear flowers, I have been trying to optimize the transfection of U937 cells with GFP (Green Fluorescent Protein). Currently, I transfect them using FuGENE6 with DNA:Lipid ratio of 1:3-1:5 and monitor the transfection efficiency, using flowcytometry (FL1), using nontransfected cells as control. I have not observed any significant increase in FL1 in transfected cells so far. If you know a good transfection method on U937 cells, please let me know. Sincerely, Dr. Ken Fujise Research Center for Cardiovascular Diseases, Institute of Moleculer Medicine for Prevention of Human Diseases
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