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Phosphor pi3k p85

Manufactured by Cell Signaling Technology
Sourced in United States

The Phosphor-PI3K p85 is a laboratory equipment product that is used to detect and measure the phosphorylation of the p85 subunit of phosphoinositide 3-kinase (PI3K). This product is designed to provide researchers with a reliable and accurate tool for studying the activation of the PI3K signaling pathway, which is involved in various cellular processes such as cell growth, survival, and metabolism.

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2 protocols using phosphor pi3k p85

1

Protein Expression Analysis by Western Blotting

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Protein expression was determined by Western blotting, which was performed according to the method of Lee et al. [49 (link)]. Briefly, proteins from cellular lysates were separated on SDS-PAGE gels and transferred to PVDF membranes (Millipore, Danvers, MA, USA). After blocking for 1 h with 5% skim milk in TBST buffer, the membranes were incubated overnight at 4 °C with antibodies specific for the following proteins: iNOS (BD Biosciences, San Jose, CA, USA), COX-2 (Santa Cruz Biotechnology, Santa Cruz, CA, USA), CD80, CD86, TNF-α, phosphor-PI3K p85 (Tyr458), PI3K, phosphor-AKT (T308), AKT, phospho-p70S6K (T389), p70S6K, phosphor-NF-κB (Ser536), NF-κB, PDK1, LDHA (Cell Signaling Technology; Danvers, MA, USA), HIF1-α (Novus Biologicals, Building IV Centennial, CO, USA), and β-actin (Sigma). After three washes in TBST, membranes were incubated with HRP-conjugated secondary antibodies (GeneTex, Irvine, CA, USA). HRP was detected using the ECL reagent (BioNote, Hwaseong, Gyeonggi-do, Korea).
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2

Western Blot Antibody Validation Protocol

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The following antibodies were used for western blotting and were purchased from the indicated suppliers: Antibodies to, phospho-Akt, phospho-STAT3, phospho-S6ribosomal protein (ser235/236), phospho-p44/42 MAPK (ERK1/2), phosphor-PI3Kp85, Akt, STAT3, S6 ribosomal protein, p44/42 MAPK (ERK1/2), PI3Kp85, Mcl-1, XIAP, Bcl-xL and PARP were purchased from Cell Signaling Technology. β-Actin and BIM were obtained from Santa Cruz Biotechnology. Bcl-2 was from BD Pharmingen. The following reagents were purchased from the indicated suppliers: Ficoll-Paque Plus (GE Healthcare); AIM-V medium, PBS and MEM Alpha medium (Gibco, Life Technologies); DMSO and propidium iodide (PI) (Sigma Aldrich); CD3 APC, CD16 FITC, and CD19 APC (BD Biosciences); annexin-V FITC (Life Technologies); and pan-caspase inhibitor Z-VAD-fmk (BD Pharmingen, BD Biosciences). Tris (dibenzylideneacetone) dipalladium (Tris-DBA) was a gift from Dr. Jack L. Arbiser, MD, Dept. of Dermatology, Emory University, School of Medicine, Winship Cancer Institute, Atlanta, GA.
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