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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。
! h* _5 i1 |4 O% T" l: v- `Double immunofluorescence for CNPase and GFAP on fixed paraffin-embedded tissue sections.
: ]! @7 ?. @: u; a0 o6 a+ l1. Deparaffinization (2×3 min, Roticlear; 1×3 min, isopropanol; 1×3 min, 96% ethanol).% `' z% a* G& K' d
2. Incubate tissues in 0.5% H2O2 solution, 30 min, RT (inactivation of endogenous peroxidase).. W) Z5 \( A. Z
3. Rinse tissue with PBS, 1×5 min.
$ p J2 e* N! V7 [4 P7 c4. Boil tissue in citrate buffer in microwave pretreatment, 20 min (antigen demasking).
$ x7 D* A; K* k9 S* ?3 ~2 R4 M: A5. Rinse tissue with PBS, 3×3 min.
7 j$ w9 [7 n. T! q) U0 t6. Incubate tissue in 20% goat serum, 30 min, (blocking of unspecific antigens).2 A# }: Q5 {5 w3 T3 h; f# w
7. Incubate tissue with both primary antibodies (CNPase, mouse, 1 : 100; GFAP, rabbit, 1 : 1000), 1 h.
# E( ^' O5 Q( C8. Rinse tissue with PBS, 3×3 min.( R" n3 L4 {& G0 }# x) d
9. Incubate tissue with both secondary antibodies (goat anti-rabbit Cy2, 1 : 200, goat anti-mouse Cy3, 1 : 200), 1 h, RT.
4 H7 U) Y& C/ @! f* Q" {8 s10. Rinse tissue with PBS, 3×3 min.7 g: \3 N1 J# ?* ?& u+ x2 ?$ w
11. Incubate cells with bisbenzimide solution, 10 min, RT.
9 { G0 D5 i0 v0 H- e" x12. Rinse tissue with PBS, 3×3 min.! C* [' N* Q2 I/ @; \
13. Rinse tissue with distilled water, 1×5 min.
4 v; Y. w' b& i4 m8 `- D9 j14. Mount slide with Roti ®-Histokitt II mounting medium./ R3 a# @ P4 p) v- v$ ^& N
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