9. 22.20
Primary cell culture
< materials >
1. A-1X PBS with 2X antibiotics (2ml of Ab/100ml)
2. Trypsin-EDTA with 2X antibiotics (2ml of Ab/100ml)
3. 10%FBS-EMEM media with 2X antibiotics (10ml of Ab./500ml)
4. Autoclaved-blue tip & yellow tip
5. sharp forcepts, scissors, 100% EtOH, Alcohol lamp, Stero-Microscope, illuminator etc…..
1. anethesize the mouse with avertin
2. open the mouse abdomen in clean bench
3. take the uterus into 100mm dish with 20ml of A-1X PBS
4. washing briefly X 2ea
5. separate the each embryo into different 35mm dish with A-1X PBS
6. washing briefly X 2ea
7. remove the placenta and discard
8. uncover the both sacs and colletc into E.tube (for western or PCR)
9. washing briefly X 2ea
10. discard 1X PBS
11. chopping the embryo with mess blade or syringe
12. add 1 – 2ml of Trypsin-EDTA with 2X antibiotics and pipetting (X10ea)
13. transfer the above sol. into 50ml C.tube
— repeat 5 – 13 steps for each embryo, as soon as possible
14. shaking incubation at 37C, 30min (or 1hr)
15. centrifuge 2000rpm, 5min
16. remove Trypsin-EDTA (dont’t discard pelltet and jelly-like clots)
17. directly add – 6ml of 10%FBS-DMEM containg 2X antibiotics (for small embryo) and pipetting 20ea
– 12ml of – and –
18. transfer the above media into 50mm dish or 100mm dish
19. follow the normal culture method.