20180604 – 20180613: HTB-11 cells diferentiation (different coatings)

2018.06.04: Coating and seeding

  • Prepare 4 plates of 35 mm of diameter with 5 coverslips (12 mm)
  • Treatment with:
    • Poly-L-Lysine 1h (0’1 mg/ml diluted in Borate Buffer)  + Laminin  1h (2’4 microg/ml diluted in Borate Buffer)
    • Laminin  1h (2’4 microg/ml diluted in Borate Buffer)
    • Poly-L-Lysine 1h (0’1 mg/ml diluted in Borate Buffer)  + Laminin  1h (10 microg/ml diluted in Borate Buffer)
    • Laminin  1h (10 microg/ml diluted in Borate Buffer)
  • Wash with PBS 1x (3 times)
  • Seed 15000 cells/cm2 –> every plate has 8 cm2 –> 120000 cells/plate 35 mm (in proliferation medium)
  • Incubate at 37ºC for 24h

2018.06.08: treatment and medium exchange

The medium has not been changed before because there were few cells..

Change the medium of the cells –> Add retinoic acid to the differentiation medium (1 microl RA in 1 ml differentiation medium)

*Change the half of the differentiation medium (+ RA) every 2 or 3 days.

2018.06.11: treatment and medium exchange

Change the medium of the cells –> Add retinoic acid to the differentiation medium (1 microl RA in 1 ml differentiation medium)

2018.06.13: ICC

  • Take 2 coverslips of each condition and put them in a 24 well plate
  • Fix with PFA 4% (aprox 1 ml/well). Incubation at RT during 20 min.
  • Wash with PBS 1x
  • Patient’s sera diluted 1/100  with differentiation medium (positive and negative control)
  • Wash with PBS 1x
  • Secondary antibody: GAH 488 (IgG or IgM) diluted 1/1000  in Goat Serum 5 %
  • Wash with PBS 1x
  • Vectashield mounting medium

Result: the cells are well preserved in all the conditions (except Poly-L-Lysine  + Laminin  10 microg/ml ). From now on, we will use the laminin 2’4 microg/ml coating.

Positive control
Positive control
Positive control
Negative control
Negative control
Negative control
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