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3 protocols using standard np 40 lysis buffer

1

Western Blot Analysis of Signaling Proteins

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Cell lysates were prepared in standard NP-40 lysis buffer (Abcam, USA) supplemented with proteinase and phosphatase inhibitors. Protein lysates were then quantified using the Pierce BCA protein assay kit (Thermo Fisher Scientific, USA). Equal masses of total protein were separated on 4–12% SDS-polyacrylamide mini-gels and blotted onto PVDF membrane (Millipore, USA). Membranes were subsequently blocked, incubated with primary antibodies, and incubated with secondary antibodies according to WesternBreeze Chromogenic Kit (Thermo Scientific, USA). Alkaline phosphatase was detected on the PVDF membranes using a ready-to-use BCIP/NBT substrate (Thermo Scientific, USA) for ready visualization of enzyme-linked antibodies. Rabbit anti-p65, anti-phospho-p65, anti-GAPDH, and anti-TBP antibodies were obtained from Cell Signaling (USA) or Abcam (USA).
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2

Western Blot Analysis of Signaling Proteins

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Cell lysates were prepared in standard NP-40 lysis buffer (Abcam, USA) supplemented with proteinase and phosphatase inhibitors. Protein lysates were quantified using the Pierce BCA protein assay kit (Thermo Fisher Scientific, USA). Equal masses of total protein were separated on 4–12% SDS-polyacrylamide mini-gels, and blotted onto PVDF membranes (Millipore, USA). Membranes were subsequently blocked, incubated with primary antibodies, and incubated with secondary antibodies according to WesternBreeze Chromogenic Kit (Thermo Scientific, USA). Alkaline phosphatase was detected on the PVDF membranes using a ready-to-use BCIP/NBT substrate (Thermo Scientific, USA) for ready visualization of enzyme-linked antibodies. Rabbit anti-STAT1(149943), anti-phospho-STAT1(76493), anti-STAT3(91393), anti-phospho-STAT3 (9131), anti-phospho-ERK(19762), and anti-GAPDH (2118) antibodies were obtained from Cell Signaling (USA). Quantification of relative intensities was achieved by ImageJ analysis.
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3

Western Blot Analysis of PI3K and ERK

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Cell lysates were prepared in standard NP-40 lysis buffer (Abcam, USA) supplemented with proteinase and phosphatase inhibitors. Protein lysates were quantified using the Pierce BCA protein assay kit (Thermo Fisher Scientific, Waltham, MA, USA). Equal masses of total protein were separated on 4–12% SDS-polyacrylamide mini-gels and blotted onto PVDF membranes (Millipore, Burlington, MA, USA). Membranes were subsequently blocked, incubated with primary antibodies, and incubated with secondary antibodies, according to WesternBreeze Chromogenic Kit (Thermo Scientific, Waltham, MA, USA). Alkaline phosphatase was detected on the PVDF membranes using a ready-to-use BCIP/NBT substrate (Thermo Scientific, USA) for ready visualization of enzyme-linked antibodies. Rabbit anti-PI3K, anti-phospho-PI3K, anti-ERK, anti-phospho-ERK, and anti-GAPDH antibodies were obtained from Cell Signaling (USA). Quantification of relative intensities was achieved by ImageJ analysis.
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