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我给你我做的一个protocol吧,一抗是不同源,还有前期根据抗体的要求做不同的处理就行了。
4 ~' C V) R. T) RDouble immunofluorescence for CNPase and GFAP on fixed paraffin-embedded tissue sections.+ t, j# t% y" P! b! [) i* H8 z
1. Deparaffinization (2×3 min, Roticlear; 1×3 min, isopropanol; 1×3 min, 96% ethanol).
0 I: g( L9 d, J# f- w2. Incubate tissues in 0.5% H2O2 solution, 30 min, RT (inactivation of endogenous peroxidase).7 u* a# I# Y. I; t( ^
3. Rinse tissue with PBS, 1×5 min.0 B2 Z( t+ O5 s9 h1 @% [9 Y" P
4. Boil tissue in citrate buffer in microwave pretreatment, 20 min (antigen demasking).+ T" O7 G6 T2 k" A
5. Rinse tissue with PBS, 3×3 min.
+ w+ e2 H a" c, f9 h1 J$ J6. Incubate tissue in 20% goat serum, 30 min, (blocking of unspecific antigens).7 R& S; n V; \5 R }3 v& Z: y
7. Incubate tissue with both primary antibodies (CNPase, mouse, 1 : 100; GFAP, rabbit, 1 : 1000), 1 h.
N: Q% z! |2 t8. Rinse tissue with PBS, 3×3 min.2 z, t" \ R1 x% `7 q& C/ Z
9. Incubate tissue with both secondary antibodies (goat anti-rabbit Cy2, 1 : 200, goat anti-mouse Cy3, 1 : 200), 1 h, RT.
. I: b6 ?* A- F5 |10. Rinse tissue with PBS, 3×3 min.2 d2 W% f* h- M/ `
11. Incubate cells with bisbenzimide solution, 10 min, RT.6 W) t( c& I: `4 k
12. Rinse tissue with PBS, 3×3 min.; u2 p* o0 l! W/ e J$ W; O
13. Rinse tissue with distilled water, 1×5 min. a0 V; j8 Z( T4 Y2 v; K
14. Mount slide with Roti ®-Histokitt II mounting medium.4 E- J7 j6 x& @
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