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FACS Analysis( P8 Y* A! j$ m3 s5 ^- E
1. 1. Harvest cell using 0.25% trypsin
# ~! x4 ^1 L+ z- Y( ?2. 2. Resuspend in 1ml DMEM/F-12 media with Trypsin inhibitor 细胞浓度为1000000个/ml! w6 N6 A$ k7 `' |; w
3. 3. Placed in a 1.5 ml micro centrifuge tube and spin down 6 I2 L$ R u8 c5 W' E7 T4 v
4. 4. Wash with FACS buffer (1XPBS, 5% FBS, and 0.1% sodium azide) in ice ( U$ c7 o* }) B- }4 P
5. 5. Resuspend in 50-100 μl and incubate in ice or 4℃ for 30 min ~ 1 hour with appropriate antibody (1:20-1:40 dilution)
; ?$ U4 Q7 Q& N( ~ Z3 G9 w6. 6. Wash three times with FACS buffer 个人经验是洗一篇,洗多了丢细胞: w4 \' O) q0 p8 ?2 C3 e% R
7. 7. Incubate with a flourescein-conjugated IgG secondary antibody(1:100) for 30 min.
% o/ b* L* \% {* |6 N9 Q8. 8. Wash three times with FACS buffer 还是洗一遍 洗完加上FACS buffer 就可马上上机了
6 k- ?5 n, {8 k9. 9. Add 0.5 ~ 1 ml of cold 1% Paraformaldehyde solution to the pellet. 这步是为了万一不能马上上机,长期保存用的,建议还是马上上的好
: I5 [; P9 o& _+ l10. 10. �Suspense cell immediately
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11. 11. �Store the fixed cells at 4℃ in the dark
0 U0 P& {- J" a% _ m+ F& B6 n6 |! P12. 12. �These cells may be stored for at least one week prior to FACS analysis 9 O' ]+ F, l* W. |3 H
IMPORTANT: Protect from direct light
; Z" z& {/ u% _% M- I: J8 bFACS Buffer Preparation
5 A2 D4 B! ]6 q' C0 h, B 5mL 10% BSA (0.1% BSA)
4 u. I0 }! C+ l5 Z V1mL 10% Azide
' J0 j/ z/ H6 m4 x' C! X! G3 ISome people add 2-4-5 mL EDTA Antichelating agent (prevents clumping)) c6 ~& b" T1 D& g
Make up to 500mL with 1x PBS
7 d- m0 |3 p N4 ]. k* i1 ? |
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总评分: 威望 + 20
包包 + 30
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