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3 protocols using coralite 594 conjugated secondary antibodies

1

Immunofluorescence Analysis of HepG2 and Hep3B Cells

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HepG2 and Hep3B cells were seeded onto coverslips, incubated 24 h and then fixed with 4% paraformaldehyde. Cells were incubated with primary antibodies (P300, 1:100, abcam, Cambridge, UK; Elk1, 1:100, abcam, Cambridge, UK) for 1 h at room temperature. CoraLite 488-conjugated secondary antibodies and CoraLite 594-conjugated secondary antibodies (Proteintech Group, Rosemont, IL, USA) were added for 30 min at room temperature at a dilution of 1:200 in PBS. Cells were then mounted with mounting medium (Vector Laboratories, Burlingame, CA, USA). Images were captured with a Carl Zeiss LSM 710 laser scanning confocal microscope (Carl Zeiss, Oberkochen, Germany).
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2

Survivin siRNA Transfection in Glioma Cells

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All oligonucleotides were synthesized and purified by Sangon Biotech Company (Shanghai, China). Survivin siRNA (5ʹ-AUUCACCAAGGGUUAAUUCdTdT-3ʹ) was synthesized by GenePharma Company (Shanghai, China). Deionized water used in all aqueous solutions was produced using a Millipore Ultrapure water machine (Massachusetts, USA). GelRed DNA gel stain solution was purchased from Biosharp (Beijing, China). Tris, magnesium chloride (MgCl2), and Triton X-100 were obtained from Macklin (Shanghai, China). Agarose was purchased from Biowest (Barcelona, Spain). U87, U251, and HUVEC cells were purchased from ATCC. Fetal bovine serum (FBS) and high-glucose Dulbecco’s modified Eagle’s medium (DMEM/high glucose) were bought from Gibco (NY, USA). A cell counting kit (CCK-8) was purchased from Bimake (Texas, USA). 4′6-Diamidino-2-phenylindole (DAPI) were obtained from Solarbio (Beijing, China). Primary antibodies β-actin (20536-1-AP), NCL (10556-1-AP), and Caspase-3 (19677-1-AP) were obtained from Proteintech (IL, USA). Survivin (YT4472) was purchased from Immunoway (TX, USA), and horseradish peroxidase-conjugated or CoraLite594-conjugated secondary antibodies were purchased from Proteintech (IL, USA).
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3

Immunofluorescence Staining of β-Catenin

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IF analysis was performed as described previously (19 (link)). Briefly, cells were seeded onto chamber slides, then fixed with 4% PFA for 10 min, permeabilized for 15 min with 0.1% Triton X-100, and blocked with 5% bovine serum albumin (BSA) for 1 h. Subsequently, cells were incubated with anti-β-catenin antibody (1:100) at room temperature for another 1 h. Then the slides were washed with PBS, followed by incubation with Coralite 594-conjugated secondary antibodies (1:500, ProteinTech, USA) for 1 h. Finally, cells were stained with 4′, 6-diamidino-2-phenylindole (DAPI) (Beyotime, China) for 3 min. Images were captured with the confocal laser microscope.
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