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- 威望
- 74
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参考下这个吧
* y! @3 _* J/ `# pfrom In Vitro Cell.Dev.Biol.—Animal (2009) 45:573–576$ \$ D5 Y6 S( c1 |- k* j& ]$ s
To isolate stem cells, umbilical cord samples: y7 k! S* \! H( B1 m/ I
were rinsed in 75% ethanol (Sigma, Poole, UK) for 30 s
- s4 x5 c. u; R$ s7 r$ qand cut open in parallel to umbilical cord vessels, so as
1 X8 |4 @" u# \! E$ k, N, ?, O7 ~to expose them fully. The gelatinous tissue surrounding3 K6 R2 j0 L2 `, E
the vessels was excised and minced into very fine pieces
9 O, N. E" Z$ tof 0.5–1 mm2, which were plated on a sterile 100×20 mm
/ b$ K8 y) B: O/ V; |! n$ Rpetri dish (Corning, Ewloe, UK) and left for 5–10 min at
$ p7 p, e& W qroom temperature, to facilitate tissue attachment. The
3 r* w1 ^& K5 \5 q% v& E9 gminced tissue was carefully covered with 5 ml of growth
; f$ i$ C" H% n) Pmedium comprised of low-glucose DMEM supplemented! m4 ?9 g! `: p& a
with 10% foetal bovine serum, 2 mM L-glutamine,, A2 t" H8 h0 c8 w6 w
penicillin (100 U/ml) and streptomycin (100 μg/ml) solution,
3 @% U' O+ O1 K+ Z; W5 f+ X25 μg/ml Fungizone, 5 ng/ml basic fibroblast growth factor
7 a1 E$ v2 j& Y4 eand 5 ng/ml epidermal growth factor (all from Invitrogen,$ }8 ~1 m7 a7 X
Paisley, UK). WJ samples were incubated at 37°C in a
o) w5 L6 R8 r7 m+ D5 n( [ Q, thumidified CO2 incubator for 5–10 d, before visible colonies! i9 N/ E* y' e8 m5 h5 O
of WJ HUMSCs were observed. |
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