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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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MSC Isolation from Rat Femur and Tibia
[1 `4 F+ F4 u1. Euthanize the rats with CO2 for 5 mins., s; v( C* P Q
2. Isolate femur and tibia by disconnecting them at the joints.
! A. _3 {4 I( y+ l5 X! t! ^) |! M9 z3. Clean the bones of soft tissues.
( h; L5 Z1 s+ G2 X5 c. K9 T4. Wash both femur and tibia in PBS containing 1% penicillin/streptomycin twice.
7 m! z$ k9 ?( u" o# F5. Under the cell culture hood, clip-off the epiphyseal plates to expose the bone marrow.
8 {9 e% j& G6 E U! f+ J6. Using a syringe, flush the bone marrow with 10 ml of media into a dish.
, Q& x, g0 D/ I/ L5 m7. Break up the clumps by aspirating the cell solution multiple times.
; l9 D9 D# L6 ~ O3 u) f! }8. Using a 70μm cell strainer, filter the cell solution into 15ml tube. This will remove any unwanted debris and bone fragments.
& ~# e! |6 ~* `* }$ h: c9. Centrifuge the filtered cell solution at 1000rpm for 10 min.
& H. I) U7 O' T10. Resuspend the pellet and pipet this solution into a 100mm dish.
7 z! | @; L. n# h' h" Y% b& y0 k0 v11. Incubate for the next 48h.
, Y% E1 T4 e" m% i. ]" H12. Change media to remove non-adhering cells.6 ]/ J* q, m c! ~
13. Change media every 2-3 days, even the media doesn’t change the color.% g- b& r5 l+ E( G& u C
14. Usually the cell will be confluence at 7-10 days, and then are ready for passaging.( H# m& z5 O, K
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