20181105-08: Coating and transfection for FLOT1/FLOT2

2018.11.05

  • Prepare 6 plates of 60mm of diameter with 26 coverslips of 9mm.
  • Treatment with Poly-D-Lysine (diluted 1/40 with boratte buffer)
  • Incubate for 1h (37ºC, 5% CO2).
  • Wash with PBS
  • Trypsin-EDTA a plate of HEK293.
  • For every plate of 60mm: 5ml of HEK medium + the volume that correspond to 1.000.000 of cells.
  • Incubate at 37ºC for 24h.

2018.11.06

  • Prepare the DNA and lipofectamine: [FLOT1] = 0,48 µg/µL. [FLOT2]= 0,43 µg/µL. Per cada placa –> 6 µg FLOT1 + 3 µg FLOT2
    • 36 µg FLOT1 (75 µL) + 18 µg FLOT2 (42 µL) + 1,5 ml Optimem
    • 72 µL of Lipofectamine + 1,5 ml Optimem
  • Incubate at RT for 5 min.
  • Unify every DNA with the appropriate amount of Lipo and incubate at RT for 30 min.
  • For every plate: 500microL of every mix of DNA and Lipo.
  • Incubate O/N at 37ºC.

2018.11.08 (48 hours later)

  • Fix with PFA 4%. Incubation at RT during 10min.
  • Wash with PBS 1x.
  • Blocking solution: 5% goat serum in PBS for 1h at RT.
  • Remove the blocking solution and freeze at -80ºC.

Check the transfection – ICC:  

  • Blocking solution: 5% goat serum in PBS
  • Ac anti-FLOT1: diluted1/50
  • GAR 488 IgM diluted 1/1000
  • Ac anti-FLOT2 biotinilated: diluted 1/25
  • Streptavidine 594 diluted 1/400
  • Vectashield mounting medium

RESULT: both FLOT1 and FLOT2 are transfected, but there are some dead cells. Maybe it’s better doing the transfection during 36 hours instead of 48 hours. 

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