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Stat3 sirna

Manufactured by Santa Cruz Biotechnology
Sourced in United States

STAT3 siRNA is a small interfering RNA (siRNA) designed to target the STAT3 gene. STAT3 siRNA is used to temporarily knock down the expression of the STAT3 gene in cell-based studies.

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21 protocols using stat3 sirna

1

Knockdown of STAT3 and NF-κB in A-549 Cells

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For the study, VCAM-1 siRNA, STAT3 siRNA, NF-κB (p65) siRNA or STAT3 siRNA along with respective scramble control were procured from Santa Cruz biotech, USA. The transfecting the cells with siRNA, the A-549 cells were trypsinized in suspension and 3×105 cells were transferred in 6 well plates. The cells received transfection of STAT3 siRNA and NF-κB siRNA following the manufacturers protocol, the cells were collected after defined time intervals for further study. Western blot analysis was done for confirming the transfection.
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2

STAT3 Silencing in Primary HUVEC

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Primary HUVEC were seeded in six-well plates the day before transfection. RNAiMAX (Invitrogen, Carlsbad, CA) was used to transfect 50 nM of STAT3 siRNA (Santa Cruz Biotechnology, Santa Cruz, CA, USA) into the cells in OPTI-MEM Medium (Invitrogen) for 48 h. Control siRNA containing a scrambled sequence (Santa Cruz) was used as a negative control.
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3

Knockdown of STAT3 in A549 and H460 cells

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The A549 and H460 cells were seeded in 6-well plates at 1 × 106 cells per well, grown to 60% confluence, and transfected with STAT3 siRNA (sc-29493; Santa Cruz Biotechnology, Dallas, TX, USA) using the lipofectamine transfection reagent (Thermo Fisher Scientific, Inc., Waltham, MA, USA). After 24 h, the transfected cells were then cultured with or without UA for another 24 h under the same cell culture conditions.
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4

STAT3 Knockdown in HCCLM3 Cells

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siRNA transfection was carried out as described earlier [55] (link). To determine whether BT interferes with EMT through modulating STAT3 signaling, HCCLM3 cells were transfected with STAT3 siRNA (Santa Cruz Biotechnology [sc-29493]) and scrambled control with transfection reagent (Intron Biotechnology, Seoul, Korea).
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5

Stat3 Knockdown Using siRNA

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siRNA or control were transfected using Lipofectamine2000 (Thermo Fisher Scientific) following manufacturer’s guidance. Stat3 siRNA, primers for Stat3 mRNA, Stattic, and p-STAT3 antibody were purchased from Santa Cruz Biotechnology.
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6

Transfection and Stimulation of Macrophages

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Macrophages were transfected using a slightly modified protocol [19] (link). Briefly, 80 µM STAT3 siRNA (Santa Cruz) or Silencer Select Negative Control (Invitrogen) in RNAiMax+OptiMEM (Invitrogen) was added to 1×106 macrophages in antibiotic-free RPMI1640 medium. Cells were incubated overnight at 37°C, rinsed the next day to remove dead cells and treated with IL-4+IL-13±IL-6 for 48 h. Cells were collected for analysis via western blot or arginase assay, or stimulated with LPS to assess nitric oxide production.
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7

Transient Knockdown of PIAS1 and STAT3 in DCs

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Selected CD11c+ DC (1.5×106) were
transiently transfected in 6-well plates using X-tremeGENE HP transfection
reagent following the manufacturer’s instructions (Roche, Indianapolis,
IN). PIAS1 or STAT-3 siRNA was combined with transfection reagent at 4:1 ratio
(μl reagent:μg of plasmid). The transfection solution was added to
the DC culture and cells were incubated at 37° C. For transient
knockdown, transfections of siRNA were performed twice (40 and 24 hours) before
additional treatment with IFN-γ or LPS. PIAS1 siRNA, STAT3 siRNA, and
control siRNA were purchased from Santa Cruz Biotechnology (Santa Cruz
Biotechnology, Santa Cruz, CA).
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8

Cardioprotective Effects of Pharmacological Interventions

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Embryonic rat cardiomyocyte-derived H9C2 cells were maintained in Dulbecco's modified Eagle's medium (DMEM) containing 10% FBS in a humidified atmosphere (5% CO2) at 37°C. Commercial Cav-3 siRNA, Akt siRNA, and STAT3 siRNA (Santa Cruz Biotechnology) were used for inhibiting Cav-3, Akt, and STAT3 protein expression, respectively, according to the manufacturer's instructions. After transfection with control, Cav-3 siRNA, Akt siRNA, or STAT3 siRNA, cells were treated with N-acetylcysteine (NAC, 1 mmol/L [29 (link)]) or combination with remifentanil (2.5 μM [12 (link)]) in HG condition for 36 h; then, the cells were exposed to H/R stimulation.
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9

Stat3 Knockdown in Mouse Primary CFs

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Mouse primary CFs were seeded on plates and cultured to 80% confluence, then transfected with Stat3 siRNA (#sc-29494) or control siRNA (#sc-37007, both Santa Cruz Biotechnology, CA) by using Lipofectamine RNAi MAX transfection reagent (Thermo Fisher Scientific, MA) for 24 hr.
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10

Angiogenic and Transcriptional Regulation

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DMEM-high glucose medium and Fetal bovine serum (FBS) were obtained from Invitrogen (NY, USA). Purified anti-mouse antibodies (VEGF, HIF1α, Sp1, Sp3, p300, CBP, pAKT, pERK, STAT3, pSTAT3) and STAT3 siRNA were procured from Santa Cruz Biotechnology (Dallas, TX, USA). Anti-mouse/rabbit fluorescence conjugated secondary antibodies (FITC and PE conjugate) were purchased from Sigma Aldrich (St. Louis, US). RT-PCR primers were designed and procured from Eurofins, Bangalore, India. Trizol reagent for RNA isolation and Revert Aid™ cDNA synthesis kit were procured from Invitrogen (Carlsbad, CA, USA) and Fermentas (Waltham, MA, USA), respectively.
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