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21 protocols using anti p ampk thr172

1

Quantitative Immunoblot Analysis of Autophagy Markers

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Caco-2 and SAOs cells were incubated with CEN at the same concentrations reported above, in the presence of 2 μM ATRA, as positive control. At the end of incubation, cells were lysed using a lysis buffer containing protease and phosphatase inhibitors, as reported [53 (link)]. After the measurement of protein concentration [54 (link)], the total protein lysates were loaded on a 4%–12% precast gel (Novex Bis-Tris precast gel 4%–12%; Life Technologies) using MES (2-(Nmorpholino) ethanesulfonic acid) or MOPS [(3-(N-morpholino) propanesulfonic acid)], (50 mM MOPS, 50 mM Tris, 1% SDS, 1 mM EDTA; pH 7) buffer. The immunoblots were performed following standard procedures, using as primary antibodies: anti-LC3, anti-BECN1, anti-pAMPKThr172, anti p27KIP1 (Cell Signalling Technology), and anti-α-tubulin (Sigma-Aldrich) antibodies. PVDF membranes were finally incubated with horseradish peroxidase-linked secondary antibody raised against mouse or rabbit and immunoblots developed using the ECL Plus Western blotting detection system kit (GE Healthcare, Milan, Italy). Band intensities were quantified measuring optical density on a Gel Doc 2000 Apparatus (Bio-Rad Laboratories, Milan, Italy) and multianalyst software (Bio-Rad Laboratories).
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2

Immunoblot Analysis of Cell Signaling Proteins

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Immunoblot analysis was carried out as previously described [40 (link)]. Membranes were probed using the following antibodies: anti-CD133 (Biorbyt, Cambridge, UK), anti-SREBP-1 and anti-GAPDH (Santa Cruz, Heidelberg, Germany), anti-p62 (Abcam, Cambridge, UK), anti-β-Actin-HRP (Sigma-Aldrich, Milano, Italy), anti-mTOR, anti-P-mTOR (Ser2448), anti-AMPK, anti-P-AMPK (Thr172), anti-LC3, anti-PPAR-γ (Cell Signaling, Danvers, MA, USA). Secondary antibodies were horseradish peroxidase-conjugated goat anti-mouse or anti-rabbit (Bio-Rad, Hercules, CA, USA). PVDF membranes (Amersham Bioscience, Piscataway, NJ, USA) were used for anti-LC3 immunoblot. Nitrocellulose membranes (Amersham Bioscience) were probed with all other antibodies.
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3

Multiparametric Antibody Validation for Stem Cell and DNA Damage Analyses

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The following antibodies were used: anti-Bnip3 polyclonal antibody (3769, Cell Signaling Technology), anti-Actin monoclonal antibody (A5441, Sigma Aldrich), anti-LC3B antibody (PM036, Medical and Biological Laboratories, Co.), anti-Sox2 monoclonal antibody (ab92494, Abcam, for western blotting), anti-Sox2 polyclonal antibody (AF2018, R&D, for IF), anti-Oct4 polyclonal antibody (ab19857, Abcam), anti-Nanog polyclonal antibody (ab106465, Abcam), anti-γH2AX polyclonal antibody (CST7918, Cell Signaling Technology), anti-53BP1 polyclonal antibody (NB100-304, Bio Techne), anti-p-ATM (Ser1981) monoclonal antibody (CST13050, Cell Signaling Technology), anti-ATM monoclonal antibody (CST2873, Cell Signaling Technology), anti-p-p53(Ser15) monoclonal antibody (CST9284, Cell Signaling Technology), anti-p53 monoclonal antibody (CST2527, Cell Signaling Technology), anti-Rad51 monoclonal antibody (H00005888, Abnova), anti-p-AMPK(Thr172) (CST2531, Cell Signaling Technology), anti-p-AMPK (CST2532, Cell Signaling Technology), anti-SSEA-1 monoclonal antibody (SC-21702AF647, Santa Cruz Biotechnology), Alexa Fluor 488 donkey anti-rabbit IgG (A21206, Invitrogen Thermo Fisher Scientific), Alexa Fluor 594 donkey anti-mouse IgG (A 21203, Invitrogen Thermo Fisher Scientific), Alexa Fluor 647 donkey anti-goat IgG (A32849, Invitrogen Thermo Fisher Scientific).
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4

Hepatic and Muscle Protein Expression Analysis

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The relative hepatic mRNA levels of G6Pase, PEPCK, apo C-III, sterol regulatory element binding protein 2 (SREBP2), diacylglycerol acyltransferase-2 (DGAT2), SREBP1c, and β-actin were evaluated by the 2700 GeneAmp™ PCR System (Applied Biosystems (ABI), Waltham, MA, USA), and the primers are depicted in Table 1 (29 (link), 34 (link), 35 (link)). The livers and skeletal muscles were immediately removed and quickly homogenized with RIPA buffer (Sigma, St. Louis, MO, USA) prior to Western blotting (29 (link), 34 (link), 35 (link)). The expression levels of target genes were assessed by Western blotting as demonstrated in previous reports (27 (link), 32 (link), 33 (link)) using the following antibodies: anti-phospho-Akt (Ser473) (no. 9271), anti-total-Akt (no. 9272), anti-p-AMPK (Thr172) (no. 2535), and anti-total-AMPK (no. 5831) from Cell Signaling Technology (Beverly, USA); anti-FoXO1 (forkhead transcription factor forkhead box O1) (no. ab39670), anti-PPARα (no. ab61182), anti-PPARγ (no. ab209350), anti-FAS (fatty acid synthase) (no. ab128856), and anti-β-actin (no. ab8227) from Abcam (Cambridge, CB2 0AX, UK); and goat anti-mouse IgG coupled to HRP secondary antibody (Jackson Lab., Inc., West Grove, USA) (29 (link), 34 (link), 35 (link)). Finally, these results were detected using chemiluminescence kits (Amersham Biosciences ECLTM, Buckinghamshire, UK).
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5

Western Blot Analysis of AMPK and ERK

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For western blot analysis cultured cell or whole heart lysates were used as described before [4 (link), 9 (link)]. The following primary antibodies obtained from Cell Signaling (Danvers, MA) were used: anti-AMPK (#2603), anti-pAMPK (Thr172, #2535), anti-Erk (#4695), anti-pErk (Thr202/204, #4370). Secondary antibody anti-rabbit IR Dye 800CW was purchased from Licor (#926-32211).
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6

Liver Protein Extraction and Western Blot

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RIPA (Beyotime Biotechnology, China) containing 1 mM PMSF (Beyotime Biotechnology, China) was used to homogenize liver tissue and then the mixture was incubated on ice for 30 min. Lysates were then centrifuged for 10 min at 14,000 × g at 4 °C. The concentration of protein in the supernatant was measured by bicinchoninic acid assay (BCA) (Beyotime Biotechnology, China). Equal amounts of protein were subjected to 10% ExpressCast PAGE Gels (Cat No. P2012) (New Cell & Molecular Biotech Co., Ltd, China) and then transferred onto a nitrocellulose membrane. The membrane was blocked with 5% BSA at 25 °C for 30 min and incubated with the appropriate primary antibody at 4 °C for 12 h. After washing with TBST, the membrane was incubated with the anti-Rabbit IgG. The anti-p-AMPK (Thr172, 1:800, Cat#2535, Cell Signaling Technology), anti-GAPDH (1:1,000, AB0036, Abways) were used to determine the expression of the corresponding proteins. GAPDH was used as an internal control to ensure equal protein loading. The protein bands were monitored using the Odyssey CLx Imager (Licor, USA). The target proteins were quantified using ImageJ software.
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7

Quantification of Metabolic Proteins in Cells

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Protein concentrations were measured using a bicinchoninic acid (BCA) protein assay kit (#23227, Thermo Scientific, USA). Equal amounts of proteins were loaded, subjected to 10% SDS‐PAGE, and transferred to polyvinylidene fluoride membranes. Thereafter, the membranes were incubated overnight at 4°C with the following primary antibodies: anti‐UCP1 (#ab10987, Abcam; 1:2000), anti‐PGC‐1α (#ab54481, Abcam; 1:1000), anti‐α‐tubulin (#A01080, Abbkine; 1:5000), anti‐α‐actin (#A2066, Sigma; 1:5000), anti‐succinate dehydrogenase complex, subunit A (anti‐SDHA; #5839, Cell Signalling, USA; 1:2000), anti‐p‐AMPK (Thr172) (#5256, Cell Signalling; 1:1000) and anti‐AMPK (#2532, Cell Signalling; 1:1000). Finally, the membranes were probed with appropriate secondary antibodies (#PI‐1000‐1, Vector Laboratories, USA) for 2 h at room temperature. The target proteins were detected with enhanced chemiluminescence reagents (#170‐5061, Bio‐Rad, USA) and analysed with Chemi‐Doc XRS+ System (Bio‐Rad). The protein levels were normalized against α‐tubulin expression levels using Image J software (NIH, USA).
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8

Western Blot Analysis of Autophagy Markers

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Proteins were obtained from the hearts or cell extracts and were analysed using Western blot analysis, as previously described [33 (link)]. The following primary antibodies were used: anti-LC3 (1:500; Abcam, Cambridge, MA, UK), anti-p62 (1:500; Abcam), anti-Beclin1 (1:500; Abcam), anti-AMPK (1:1000; Cell Signaling, Danvers, MA, USA), anti-p-AMPK-Thr172 (1:1000; Cell Signaling), anti-mTOR (1:1000; Cell Signaling), anti-p-mTOR-Ser2448 (1:1000; Cell Signaling), ULK1 (1:1000; Cell Signaling), and p-ULK1-Ser757 (1:1000; Cell Signaling). Targeted bands were normalized to GAPDH to confirm equal protein loading. The Western blot bands were quantified using ImageJ 3.0 software.
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9

Neuroprotective Effects of EMPA in Rotenone-Induced Parkinson's

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EMPA was purchased from El-Hikma Pharmaceutical Co., Giza, Egypt. Rotenone was purchased from Sigma Aldrich, USA. For Western blot analysis, anti-β-actin (Catalogue No. #ab8224), anti-AMPK (Catalogue No. #ab110036), anti-SIRT-1 (Catalogue No. #ab110304), and anti-β-catenin (Catalogue No. #ab32572) antibodies were purchased from Abcam, USA. Anti-pAMPK (Thr172) (Catalogue No. #2531) anti-PGC-1α (Catalogue No. #2178) antibodies were purchased from Cell Signaling Technology, USA. Anti-tyrosine hydroxylase antibody (Catalogue No. #NB300-109) was purchased from Novus Biological, USA. Anti-alpha-synuclein antibody (Catalog No.# sc-12767) was purchased from Santa Cruz Biotechnology, Inc.
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10

Biochemical Profiling of Autophagy Pathways

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RL71 (>97% purity, HPLC) was synthesized as described previously.14 (link) anti-LC3B, anti-ubiqutin, anti-CHOP, anti-PARP, anti-p-JNK, anti-JNK, anti-p-PERK (Thr980), anti-p-AMPK (Thr172), anti-p-mTOR (Ser2448, 2971), anti-p-p70S6K (Thr389), anti-Cox4 and anti-cleaved caspase-3 antibodies were purchased from Cell Signaling Technology (Beverly, MA, USA). Anti-Grp78, anti-ATF4, anti-ATF6, anti-β-actin and anti-GFP antibodies were from Santa Cruz Biotechnology (Santa Cruz, CA, USA). Anti-SQSTM1/p62, anti-ATG5 and anti-ATG7 antibodies were from Abcam (Cambridge, UK) and anti-LC3 was from Novus Biologicals (Littleton, CO, USA). GFP-LC3 plasmid was purchased from Yingrun Biotechnologies Inc. (Changsha, China). Compound C (CC) and BAPTA were obtained from Calbiochem (San Diego, CA, USA). zVAD was from Selleck Chemicals (Houston, TX, USA). Chloroquine (CQ), STO-609, SP600125 and PBA were purchased from Sigma-Aldrich (St. Louis, MO, USA). The ER-specific dye ER tracker Red, the mitochondrial specific dye MitoTraker Red CMXRos (M7512), JC-1 (T-3168), Fura-2/AM and Lipofectamine 3000 transfection reagent were purchased from Life Technologies (Grand Island, NY, USA). The Ca2+-ATPase activity assay kit was purchased from Nanjing Jiancheng Bioengineering Institute (Nanjing). All of the other chemicals were purchased from Sigma-Aldrich.
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