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Ki 67 12202

Manufactured by Cell Signaling Technology

Ki-67 (12202) is an antibody product offered by Cell Signaling Technology. It is used for the detection of the Ki-67 protein, which is a cellular marker for proliferation. The antibody can be utilized in various applications, such as immunohistochemistry and immunofluorescence, to study cell proliferation.

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3 protocols using ki 67 12202

1

Diethylnitrosamine-induced signaling pathway analysis

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Diethylnitrosamine (DEN), (catalogue number: N0258; MilliporeSigma, Burlington, MA) was dissolved in saline and stored at 4°C until used. Antibodies specific to pSTAT3Tyr705 (9145), STAT3 (12640), pERK1/2Thr202/Tyr204 (4370), ERK1/2 (4695), pGSK-3α/βSer21/9 (9331), GSK-3α/β (9315), p-c-JunSer73 (3270), c-Jun (9165), pIGF-IRTyr1135/1136 (3024), IGF-IR (9750), Ki-67 (12202) (Cell Signaling, Cambridge, MA), BCL-2 (sc-7382), BCL-xL/xS (sc-1041) (Santa Cruz Biotechnology, Delaware, CA), and β-Actin (A2228), (MilliporeSigma) were used.
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2

Immunohistochemical Analysis of Mouse Colon

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Sections from large intestines were collected from 6-week-old mice. Paraffin sections (5 μm) were deparaffinized in xylene and rehydrated in an ethanol gradient. Antigen retrieval was performed in Rodent Decloaker using a Decloaking Chamber (Biocare Medical, Walnut Creek, CA). Endogenous peroxidase activity was quenched by incubation in 3% H2O2 for 10 min, and slides were blocked with Dako Protein Block (DakoCytomation Inc., Mississauga, Ontario, Canada) for 30 min at room temperature. The slides were incubated with primary antibody for 1 h at room temperature. The following polyclonal antibodies were used: anti-cleaved caspase-3 (5A1E, 1:800) and Ki-67 (12202, 1:400) (Cell Signaling Technology, Beverly, MA). After washing, slides were incubated with prediluted biotinylated goat anti-rabbit IgGs (Biocare Medical) for 30 min and then treated with 3,3′-diaminobenzidine peroxidase substrate kit (Vector Laboratories, SK-4100). Samples were mounted with aqueous mounting medium (Dako, S3025), and images were taken on a Nikon microscope using NIS-Elements software.
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3

Adipose Tissue Histology and Immunostaining

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Adipose tissues were fixed in 4% PFA for 24 h at 4°C. After dehydration, the tissues were embedded into paraffin and cut into 5 µm thick slices, deparaffinized and rehydrated using standard methods. Sections were stained with hematoxylin & eosin. For immunohistochemical staining, antigen retrieval was performed by submerging in 0.01 M sodium citrate (pH 6.0) and heated to boil for 20 min in a microwave oven. BAT was subjected to immunofluorescence staining and antibodies against UCP1 was purchased from Santa Cruz Biotech (sc-28766), and Ki67 (12202) was purchased from Cell signaling technology.
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