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5 protocols using hydroxy hif 1α

1

Western Blot Analysis of Hypoxia Proteins

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Protein samples (20-40 μg) from treated cell extracts were resolved by 10% or 12% SDS-PAGE gel and were transferred to a polyvinylidene fluoride membrane (Bio-Rad, Hercules, CA). The membranes were probed for various proteins using the appropriate antibodies (primary antibody incubated overnight at 4°C, secondary antibody incubated for 1 h at room temperature) and were visualized using an electrochemiluminescence (ECL) system (Thermo Fisher Scientific, Waltham, MA). The bands were imaged and analyzed using the ChemiDoc™ XRS+ System with Image Lab™ Software (Bio-Rad, Hercules, CA). The applied primary antibodies included HIF-1α (1 : 1000 Novus Biologicals, Littleton, CO), hydroxy-HIF-1α (1 : 1000 Cell Signaling Technology, Danvers, MA), ISCU1/2 (1 : 200 Santa Cruz Biotechnology, Santa Cruz, CA), aconitase 2 (1 : 1000), and NDUFA9 (1 : 2000, Abcam, Cambridge, UK).
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2

Western Blot Analysis of Cellular Proteins

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Protein samples were isolated with lysis buffer, eluted with SDS buffer, separated on SDS-polyacrylamide gels, and electroblotted onto PVDF membranes [51 (link)]. Immunoreactive protein bands were detected using an Odyssey Scanning System (LI-COR Inc., Superior St., Lincoln, NE). The following antibodies were used for Western blotting: PGM, MDM2, β-actin (Santa Cruz Biotechnology, CA) at 1:400 dilution; SIRT3, hexokinase II, hydroxy-HIF-1α, PTEN, GLUT4 (Cell signaling Technology, Inc., MA) at 1:800 dilution; SIRT3 of nuclear protein (Abcam Ltd, HK, China) at 1:1000 dilution; TIGAR (Anspec, Inc., San Jose, CA); p53 (Ab-6) (EMD Chemicals, Gibbstown, NJ).
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3

Protein Expression Analysis in Metabolic Regulation

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Proteins were isolated using lysis buffer, incubated in SDS buffer, separated on SDS-polyacrylamide gels, and electroblotted onto PVDF membranes. Immunoreactive protein bands were detected using an Odyssey Scanning System (LI-COR Inc., Superior St., Lincoln, NE, USA). The following antibodies were used for Western blotting: G6Pase, FBPase, PEPCK, COX2, c-Myc, p-AKT, p-p38, PDHK, MCT1, β-actin (Santa Cruz, CA, USA) at 1:400 dilution; MCT4, p-ERK, GLUT 4, (Bioworld Technology, Inc., MN) at 1:800 dilution; HIF-1α, Hexokinase II, Hydroxy-HIF-1α, PFKFB 3 (Cell Signaling Technology, Inc., MA) at 1:800 dilution.
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4

Western Blot Analysis of Hypoxia Signaling

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Proteins were isolated using lysis buffer, incubated in SDS buffer, separated on SDS-polyacrylamide gels, and electroblotted onto PVDF membranes. Immunoreactive protein bands were detected using an Odyssey Scanning System (LI-COR Inc., Superior St., Lincoln, NE, USA). The following antibodies were used for western blotting: HIF1α, PHD1, PHD2, PHD3, SOD2, β-actin (Santa Cruz Biotechnology) at 1 : 400 dilution; SIRT3, SIRT1, HKII, Hydroxy-HIF-1α, FOXO3a (Cell Signaling Technology) at 1 : 800 dilution.
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5

Immunoblot Analysis of TLR Signaling Pathway

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Protein extracts were resolved by SDS-PAGE and transferred to nylon membranes (Immobilon-P; Merck KGaA) using standard techniques. Primary antibodies used for immunoblotting were as follows: MYD88 (sc-11356; Santa Cruz Biotechnology, Inc., Dallas, TX, USA) for the detection of the N-terminal of MYD88, MYD88 (#4283; Cell Signaling Technology, Inc., Danvers, MA, USA), phospho-IRAK4 (#11927; Cell Signaling Technology, Inc.), IRAK4 (#4363; Cell Signaling Technology, Inc.), phospho-p65 (#3033; Cell Signaling Technology, Inc.), p65 (sc-372; Santa Cruz Biotechnology Inc.), phospho-IκBα (#9246; Cell Signaling Technology, Inc.), IκBα (sc-371; Santa Cruz Biotechnology, Inc.), HIF-1α (NB100-479; Novus Biologicals, Centennial, CO, USA), HIF-2α (NB100-122; Novus Biologicals), hydroxy-HIF-1α (#3434; Cell Signaling Technology, Inc.), phosphor-JNK (#9251; Cell Signaling Technology, Inc.), JNK (#9252; Cell Signaling Technology, Inc.), phosphor-ERK (#9101; Cell Signaling Technology, Inc.), ERK (#9102; Cell Signaling Technology, Inc.), phosphor-p38 (#9211; Cell Signaling Technology, Inc.), p38 (#9212; Cell Signaling Technology, Inc.), phosphor-MAPKAP2 (#3316; Cell Signaling Technology, Inc.), and MAPKAP2 (#12155; Cell Signaling Technology, Inc.).
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