Difference between revisions of "Lipofectamine Plasmid Transfection"

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*Cells in a 6 well dish, plated and at >90% confluence
 
*Cells in a 6 well dish, plated and at >90% confluence
 
*Lipofectamine 2000 (Invitrogen cat# 11668-019 for 1.5mL)
 
*Lipofectamine 2000 (Invitrogen cat# 11668-019 for 1.5mL)
 +
 +
==Required Amounts==
 +
*Calculate DNA to transfect
 +
*Lipofectamine(in uL) = DNA(in ug) * 2.5
 +
*OptiMEM(in uL, equal for DNA and Lipofectamine) = Lipofectamine(in uL) * 25
  
 
==Protocol (6 well dish)==
 
==Protocol (6 well dish)==
#Plate cells the day before so that they are at 90-95% confluence in 2 mL media without antibiotics, or alternatively change media before transfection to OptiMEM
+
#Plate cells the day before so that they are at 90-95% confluence in 2 mL media without antibiotics (DMEM with 10% FBS, no PSG).
 
#For each well prepare:
 
#For each well prepare:
 
##250uL OptiMEM plus 4 ug of DNA.
 
##250uL OptiMEM plus 4 ug of DNA.
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#Add DNA/Lipofectamine complexes (~500 uL) to the 2 mL of media on the cells
 
#Add DNA/Lipofectamine complexes (~500 uL) to the 2 mL of media on the cells
 
#Gently rock plate to mix
 
#Gently rock plate to mix
#After ~4h re-feed cells with normal media.
+
#After ~4h aspirate media and re-feed cells with normal media. (It is usually possible to leave overnight).  
  
 
Protocol adapted from [http://tools.invitrogen.com/content/sfs/manuals/lipofectamine2000_man.pdf Product Manual]
 
Protocol adapted from [http://tools.invitrogen.com/content/sfs/manuals/lipofectamine2000_man.pdf Product Manual]

Latest revision as of 21:00, 11 July 2012


Materials

  • Cells in a 6 well dish, plated and at >90% confluence
  • Lipofectamine 2000 (Invitrogen cat# 11668-019 for 1.5mL)

Required Amounts

  • Calculate DNA to transfect
  • Lipofectamine(in uL) = DNA(in ug) * 2.5
  • OptiMEM(in uL, equal for DNA and Lipofectamine) = Lipofectamine(in uL) * 25

Protocol (6 well dish)

  1. Plate cells the day before so that they are at 90-95% confluence in 2 mL media without antibiotics (DMEM with 10% FBS, no PSG).
  2. For each well prepare:
    1. 250uL OptiMEM plus 4 ug of DNA.
    2. 250uL OptiMEM plus 10 uL of Lipofectamine.
    3. Incubate ~5 minutes at room temperature.
    4. Combine the two volumes of OptiMEM/DNA and OptiMEM/Lipofectamine.
    5. Incubate ~20 min at room temperature.
  3. Add DNA/Lipofectamine complexes (~500 uL) to the 2 mL of media on the cells
  4. Gently rock plate to mix
  5. After ~4h aspirate media and re-feed cells with normal media. (It is usually possible to leave overnight).

Protocol adapted from Product Manual