Hi,I have been trying to transfect MDA MB 231 cell lines since a while, I tried with lipofectamine LTX as well as lipofectamine 3000.Please suggest what are the best methods to transfect this cell line
Gangotri Patra Hi!, The usual protocol followed for transfection is a 1:1 ratio of the plasmid to the transfection reagent. Lipofectamine 3000 comes in 1mg/mL concentration. So, for 1 microgram of the plasmid, 1 microliter of the transfection reagent is ideal which amounts to 1 microgram of the transfection reagent. So, if the amount of the transfection reagent is higher than required, it will lead to toxicity and cell death, and probably that might be the reason the transfection might not be working.