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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。
) [- |5 U* L6 u2 a2 S6 ~" ]Double immunofluorescence for CNPase and GFAP on fixed paraffin-embedded tissue sections.
8 I, o/ t, r# ]% T7 D! O# b1 H7 _1. Deparaffinization (2×3 min, Roticlear; 1×3 min, isopropanol; 1×3 min, 96% ethanol).3 U/ E2 s% d6 \1 p" T6 G
2. Incubate tissues in 0.5% H2O2 solution, 30 min, RT (inactivation of endogenous peroxidase).
. H! n B, c) [8 R0 |' R8 s# H3. Rinse tissue with PBS, 1×5 min.$ A* n9 A8 m" R/ I( j2 z) W
4. Boil tissue in citrate buffer in microwave pretreatment, 20 min (antigen demasking).
; P! Q. _- ]) {) M% s8 W: b5. Rinse tissue with PBS, 3×3 min." i, }4 V9 a$ u2 x6 O; \2 p: P5 k
6. Incubate tissue in 20% goat serum, 30 min, (blocking of unspecific antigens).
1 |' r1 \, E- t. a+ j8 W& i7 B7. Incubate tissue with both primary antibodies (CNPase, mouse, 1 : 100; GFAP, rabbit, 1 : 1000), 1 h.
( o1 g5 w: O# y. j3 a: m1 ^& W8. Rinse tissue with PBS, 3×3 min.) f R1 i# `+ V( L h$ Y
9. Incubate tissue with both secondary antibodies (goat anti-rabbit Cy2, 1 : 200, goat anti-mouse Cy3, 1 : 200), 1 h, RT.
/ c7 u, l* O) [& {4 q9 m/ t10. Rinse tissue with PBS, 3×3 min.
) w; `; l' I7 b1 M* e11. Incubate cells with bisbenzimide solution, 10 min, RT., Q2 @/ M8 A! M
12. Rinse tissue with PBS, 3×3 min.& g: A! H" I. G# [/ ^/ H
13. Rinse tissue with distilled water, 1×5 min.' \" p! E9 y$ s
14. Mount slide with Roti ®-Histokitt II mounting medium.
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