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4 protocols using caspase 3 clone 8g10

1

Caspase Activation and Pyroptosis Assays

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LPS was purchased from Santa Cruz Biotechnology, nigericin, and vildagliptin and Ac-YVAD-CMK from the Cayman Chemical Company, PMA and sitagliptin from Sigma, Ala-Pro-AFC from Bachem, saxagliptin from Toronto Research Chemicals, and Z-VAD-FMK and etoposide from Enzo Life Sciences. Val-boroPro45 (link), 1G24424 (link), FP-biotin15 (link), L-allo-Ile-isoindoline14 (link), and L-allo-Ile-thiazolidine14 (link) were synthesized according to previously published protocols. For cell culture experiments, Val-boroPro was resuspended in DMSO containing 0.1% TFA to prevent compound cyclization. Antibodies used include: human caspase-1 (#2225, Cell Signaling Technology), mouse caspase-1 (clone Casper-1, Adipogen), caspase-3 (clone 8G10, Cell Signaling Technology), human caspase-4 (clone 4B9, Santa Cruz), human caspase-5 (clone D3G4W, Cell Signaling Technology), caspase-7 (clone D2Q3L, Cell Signaling Technology), human IL-1β (Clone 2805, R&D Systems), mouse IL-1β (clone D4T2D, Cell Signaling Technology), IL-1α (#AF-200, R&D Systems), IL-18 (#AF2548, R&D Systems), GAPDH (clone 14C10, Cell Signaling Technology), DPP7 (Clone 398024, R&D Systems), DPP8 (ab42076, Abcam), DPP9 (ab42080, Abcam), PARP (#9542, Cell Signaling Technology), GSDMD (NBP2-33422, Novus Biologicals), DPP4 (#11D7, GeneTex), FAP (ABT11, Millipore), and SCPEP1 (SAB2700267, Sigma).
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2

Apoptosis Pathway Regulation Protocol

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2-DG, PA, SP600125, glucose, rapamycin, the proteasome inhibitor MG132, Annexin V and PI were obtained from Sigma (St. Louis, MO, USA). ABT-199 was from Selleck Chemicals (Houston, TX, USA). myc (clone 9E10, M4439) and actin (clone AC-74, A5316) antibodies were also from Sigma. phospho-Akt (Ser 473) (clone 587F11, #4051), Akt (#9272), phosphor-mTOR (Ser2448)(#5536), mTOR (#2972), phosphor-p70S6K (Thr389)) (#9234), p70S6K (#9202), phospho-JNK (Thr 183/Tyr 185) (#9251), JNK (#9252), caspase-3 (clone 8G10, #9665), and Mcl-1 (#4572) antibodies were purchased from Cell Signaling (Beverly, MA). Bcl-2 (sc-7382), Bcl-xL (sc-8392), phosphor-Bcl-xL (Ser 62) (sc-101644), BimEL (sc-27982), p62(sc-55603), Noxa (sc-56169) and Bid (sc-56025) antibodies were from Santa Cruz (Santa Cruz, CA).
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3

Western Blot Analysis of Proteins

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Proteins were isolated from tissues, resolved by SDS-PAGE then transferred to PVDF membrane as previously described.8 Membranes were immunoblotted with the primary antibodies specific to: caspase-3 (clone 8G10, #9665), cleaved caspase-3 (#9664) and p53 (clone 1C12, #2524; Cell Signalling Technology, Beverly, MA, USA); UCP1 (#ab10983; Abcam, Cambridge, MA, USA); and β-actin clone AC-15 (#A5441; Sigma-Aldrich, St. Louis, MO, USA). Densitrometric analysis was performed using Image J software (NIH, Bethesda, MD, USA).
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4

Inhibition of DNA Repair Pathways

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Cells were plated in 10-cm dishes and allowed to attach overnight. AZD6738 and KU-0060648 were added at the indicated concentrations 1 h before irradiation. Medium and cells were harvested in PBS-containing 1 mM Na3VO4 and 1 mM NaF. Cells were pelleted before lysis in 50 mM Tris–HCl pH 7.5, 150 mM NaCl, 1% NP-40, 0.5% deoxycholate, and 0.1% SDS. Lysis supernatants were quantified by BCA assay from Pierce (Leicestershire, UK). Total protein lysate was separated by reducing SDS-PAGE, transferred to Midi Nitrocellulose membranes using a Transblot Turbo (Bio-Rad, Watford, UK), and blocked with TBS blocking buffer (Li-Cor Biotechnology, Cambridge, UK). Membranes were probed with antibodies specific for GAPDH clone 10C10, CHK1 clone 2G1D5, phospho-CHK1 (S345) clone 133D3, DNA-PK code 4602, γH2Ax (S139) clone 20E3 and Caspase 3 clone 8G10 from Cell Signaling (MA, USA); phospho-DNA-PK from Abcam ab18192 (Cambridge, UK); PARP clone F-2 was purchased from Santa Cruz (TX, USA).
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