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Anti sirt1 sc 15404

Manufactured by Santa Cruz Biotechnology
Sourced in France, United States

Anti-SIRT1 (sc-15404) is a primary antibody product from Santa Cruz Biotechnology. It is designed to detect SIRT1 (Sirtuin 1) protein expression.

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4 protocols using anti sirt1 sc 15404

1

Western Blot Analysis of Cell Signaling

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The cells were lysed in 10 mM Tris (pH 7.4), 150 mM sodium chloride, 1 mM EDTA, 0.5% Nonidet P-40, 1% Triton X-100, 1 mM sodium orthovanadate, 0.2 mM PMSF, and protease inhibitor mixture (Roche Applied Science). Samples were separated using SDS–PAGE and transferred onto nitrocellulose membranes. The anti-β-tubulin (sc-9104), anti-RelB (sc-226), anti-p65 (sc-372), anti-p105/p50 (sc-8414), anti-IκBα (sc-371), and anti-SIRT1 (sc-15404) antibodies (Santa Cruz Biotechnology); anti-Lamin A/C (2032), anti-myc (2276), and anti-p52 (4882) (Cell Signaling); anti-YY1 (A302-779A) (Bethyl Laboratories), and anti-flag (F1804) antibodies (Sigma-Aldrich) were used. Antigen–antibody complexes were visualized by ECL using Immobilon Western blotting kit (Millipore).
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2

Western Blot Analysis of NF-κB Signaling

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Cells were lysed in 10 mM Tris (pH 7.4), 150 mM sodium chloride, 1 mM EDTA, 1% Nonidet P-40, 1% Triton X-100, 1 mM sodium orthovanadate, 0.2 mM PMSF, and Pierce protease inhibitor mixture. Samples were separated on a 10% gel, and transferred onto nitrocellulose membranes (GE Healthcare). Anti-β-tubulin (sc-9104), anti-RelB (sc-226), anti-p65 (sc-372), anti-p105/p50 (sc-8414), anti-IκBα (sc-371), and anti-SIRT1 (sc-15404) antibodies (Santa Cruz Biotechnology); anti-Lamin A/C (2032), anti-myc (2276) anti-GAPDH (5174), and anti-phospho-p65(S536) (3031) antibodies (Cell Signaling); anti-flag (F1804) antibodies (Sigma-Aldrich); and anti-pRelB(S472) antibodies were from CliniSciences (NB-22-1004) (Nanterre, France). Antigen-antibody complexes were visualized by enhanced chemiluminescence using Immobilon Western blotting kit (Millipore).
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3

Evaluation of Chemotherapy Drug Resistance

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D-Glucose and methylthiazoly-diphenyl-tetrazolium bromide (MTT) were purchased from Sigma-Aldrich (St. Louis, MO, USA). The chemotherapy drug 5-fluorouracil (5-FU) was acquired from The First Affiliated Hospital, College of Medicine, Xi’an Jiaotong University (Xi’an, China). The primary antibodies used were as follows: Rabbit anti-human polyclonal anti-Nampt (AV42255; Sigma-Aldrich), rabbit anti-human polyclonal anti-p53 (sc-126; Santa Cruz Biotechnology, Inc., Santa Cruz, CA, USA)/p-glycoprotein (P-gp; sc-55510; Santa Cruz Biotechnology, Inc.), rabbit anti-human polyclonal anti-topoisomerase (topo)-IIα (20233-1-AP; Proteintech, Chicago, IL, USA) and rabbit anti-human monoclonal anti-Sirt1 (sc-15404; Santa Cruz Biotechnology, Inc.). The secondary antibodies and 3,3′-diaminobenzidine were purchased from ZSGB-BIO (Beijing, China).
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4

Dual-Immunostaining for SIRT1 and ISG15

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Dual-immunohistochemical staining for SIRT1 and ISG15 was performed using a Ventana BenchMark ULTRA system (Roche Korea Diagnostics Ltd., Seoul, Korea). Antigen retrieval was performed for 64 min using pH 9.0 CC1 antigen retrieval solution (Roche Korea Diagnostics Ltd.). The specimens were incubated with primary antibodies (anti-SIRT1 (sc-15404), 1:100, Santa Cruz; and anti-ISG15 (HPA004627), 1:100, Atlas Antibodies) for 90 min, and developed with an OptiView DAB IHC Detection Kit (Roche Korea Diagnostics Ltd.) for SIRT1 and with an UltraView Universal Alkaline Phosphatase Red Detection Kit (Roche Korea Diagnostics Ltd.) for ISG15. For quantification, the combined expression of SIRT1 and ISG15 (SIRT1/ISG15) and the individual expression of SIRT1 or ISG15 were assessed. The combined expression of SIRT1 and ISG15 (SIRT1/ISG15) and the individual expression of SIRT1 or ISG15 were scored by summing the staining intensity score (0; no staining, 1; weak staining, 2; intermediate staining, 3; strong staining) and the area score (0; 0%, 1; 1%, 2; 2–10%, 3; 11–33%, 4; 34–66%, 5; 67–100%)40 (link). The final score was assessed by summing the scores from the two tissue microarray cores, resulting in a final immunohistochemical staining score ranging from zero to sixteen41 (link).
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