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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。
3 j0 s r3 l$ TDouble immunofluorescence for CNPase and GFAP on fixed paraffin-embedded tissue sections.
3 g" G% }! s' o! D% m1. Deparaffinization (2×3 min, Roticlear; 1×3 min, isopropanol; 1×3 min, 96% ethanol)." b* h4 s3 p1 g
2. Incubate tissues in 0.5% H2O2 solution, 30 min, RT (inactivation of endogenous peroxidase).. C7 w) a( |$ U6 M8 r$ _: ^
3. Rinse tissue with PBS, 1×5 min.- }% k; q1 N4 _: g
4. Boil tissue in citrate buffer in microwave pretreatment, 20 min (antigen demasking).3 c/ q: T& o! F# H, v" K- `% H& y
5. Rinse tissue with PBS, 3×3 min.
9 j) W: F1 r) v* f9 Y6. Incubate tissue in 20% goat serum, 30 min, (blocking of unspecific antigens).: h$ n; `, a0 n- Y* o; B7 X6 ^
7. Incubate tissue with both primary antibodies (CNPase, mouse, 1 : 100; GFAP, rabbit, 1 : 1000), 1 h.' w1 z' j! m; F# i- g1 J$ c' o
8. Rinse tissue with PBS, 3×3 min.1 y8 n' P. v9 U7 Q
9. Incubate tissue with both secondary antibodies (goat anti-rabbit Cy2, 1 : 200, goat anti-mouse Cy3, 1 : 200), 1 h, RT.
. [/ c, D, G% n' T6 v; j3 X5 f0 I10. Rinse tissue with PBS, 3×3 min.
9 E! C1 ]$ P# d: U7 W7 g0 y11. Incubate cells with bisbenzimide solution, 10 min, RT., _( A3 Q1 M6 g1 ^: g! r
12. Rinse tissue with PBS, 3×3 min.
' J3 h: i4 G1 g3 e D5 P0 y+ T13. Rinse tissue with distilled water, 1×5 min.
& w) F0 Y# }: A2 [14. Mount slide with Roti ®-Histokitt II mounting medium.& B9 y$ i. s6 h x
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