Method of transfecting cells with nucleic acids using acidified polyethylenimine
AssigneeNational University Corporation Chiba University
InventorsNaoto Yamaguchi, Yasunori Fukumoto
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Abstract
An object of the present invention is to achieve a method capable of increasing transfection efficiency of polyethyleneimine (PEI) and reducing toxicity thereof, to provide a PEI with high transfection efficiency, and to provide a method of introducing nucleic acids into cells comprising using the PEI. There are provided a method of introducing nucleic acids into cells comprising mixing acidified PEI with nucleic acids under acidic conditions and applying the resulting mixture to cells, a reagent for introducing nucleic acids into cells comprising an acidified PEI solution, and a reagent kit including the solution.
Claims9
A method of introducing nucleic acids into cells, comprising steps of:
- (1) a step of mixing polyethyleneimine (PEI) with nucleic acids under acidic conditions of pH from 3.5 to 4.5, and
- (2) a step of applying the resulting mixture to cells.
A method of introducing nucleic acids into cells, comprising steps of:
- (1) a step of mixing polyethyleneimine (PEI) with nucleic acids under acidic conditions of pH from 3.5 to 4.5,
- (2) a step of applying the resulting mixture to cells, and
- (3) a step of replacing cell culture medium to fresh culture medium, wherein the PEI is a PEI solution prepared by dissolving linear PEI with a molecular weight of approximately 25,000 in a 0.2N hydrochloric acid solution, and a weight ratio of the PEI to the nucleic acids is from 4:1 to 8:1.
Dependencies are inferred from the claim text.