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我做rat的,小鼠的没做过,不知道我的protocol有参考价值没,感觉MSC是最好培养的了,比什么osteoblast和osteoclast好养多了
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1 O9 Z! q# V; S6 {$ K, L4 ?MSC Isolation from Rat Femur and Tibia4 ?+ Y3 r: S' ^9 B$ l* |0 l$ m+ ~
1. Euthanize the rats with CO2 for 5 mins.
C' y! z: j. d* A. ^9 |2. Isolate femur and tibia by disconnecting them at the joints.# [+ |2 y, w- O' C
3. Clean the bones of soft tissues.
0 L6 H- m% w2 b- s) |; Q. U4. Wash both femur and tibia in PBS containing 1% penicillin/streptomycin twice.
5 u2 P ?& l2 g+ ]( Q5. Under the cell culture hood, clip-off the epiphyseal plates to expose the bone marrow.; k$ m% H- x- ^2 R$ S
6. Using a syringe, flush the bone marrow with 10 ml of media into a dish." p4 `3 j' E1 r; i5 g7 ] _
7. Break up the clumps by aspirating the cell solution multiple times.
1 {- H* L0 D& ~; C8. Using a 70μm cell strainer, filter the cell solution into 15ml tube. This will remove any unwanted debris and bone fragments.4 R$ c6 \0 `$ p, k: ~
9. Centrifuge the filtered cell solution at 1000rpm for 10 min., e% O# Z$ g* d- X+ s: A- C. f. L
10. Resuspend the pellet and pipet this solution into a 100mm dish.6 v S. s& g0 V' X A* u
11. Incubate for the next 48h.
* j. X v/ C% G12. Change media to remove non-adhering cells.
9 `+ |5 t0 L5 y* k( @* D) G13. Change media every 2-3 days, even the media doesn’t change the color.
8 @( ?, q8 ^* G3 a8 Y0 V5 K14. Usually the cell will be confluence at 7-10 days, and then are ready for passaging.5 d6 d* q# w+ c' n/ D8 U' f
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