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参考下这个吧" @) R( E' p; a9 s t3 ~( _: J& Y s
from In Vitro Cell.Dev.Biol.—Animal (2009) 45:573–576: Q: f' v* R; R: [- |+ P: b
To isolate stem cells, umbilical cord samples' T; o; Y0 ]9 y& E4 Y. |
were rinsed in 75% ethanol (Sigma, Poole, UK) for 30 s; v+ n9 Q! @2 i. A) O, m0 j) [
and cut open in parallel to umbilical cord vessels, so as
5 M4 ^5 U8 |0 O4 x/ Bto expose them fully. The gelatinous tissue surrounding) J' @) c6 p R, h* Z+ K0 E
the vessels was excised and minced into very fine pieces
1 S6 C6 ~3 H4 @5 o: bof 0.5–1 mm2, which were plated on a sterile 100×20 mm% ~6 \" r1 h0 o9 J8 Q4 D3 _
petri dish (Corning, Ewloe, UK) and left for 5–10 min at5 j; x: A3 o( L! Y
room temperature, to facilitate tissue attachment. The2 Q2 j5 ~% g& b
minced tissue was carefully covered with 5 ml of growth* m; s6 L& U3 g4 x! e: z$ A
medium comprised of low-glucose DMEM supplemented$ C5 X9 `1 X! P3 ]- X6 y! i J4 u2 s
with 10% foetal bovine serum, 2 mM L-glutamine,
- K/ Y. d$ O6 [penicillin (100 U/ml) and streptomycin (100 μg/ml) solution,
, D2 @# n% y# I: z& E# v# q: C) l25 μg/ml Fungizone, 5 ng/ml basic fibroblast growth factor
2 a" G' f! I6 Wand 5 ng/ml epidermal growth factor (all from Invitrogen,
( P7 \8 A6 c8 P8 I' MPaisley, UK). WJ samples were incubated at 37°C in a! l% w4 D7 K) m1 ?
humidified CO2 incubator for 5–10 d, before visible colonies$ b' K- _* m. N4 R" O0 m: M
of WJ HUMSCs were observed. |
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