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2 protocols using g 6976

1

Purification and Analysis of Recombinant CGL

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Natural CGL was isolated as described previously16 (link). Recombinant CGL was prepared according to our previous study19 (link) and further purified using Pierce High Capacity Endotoxin Removal Spin Columns (Thermo Fisher Scientific, USA). LPS (from Escherichia coli 0111:B4), N-acetylcysteine (NAC), PD98059, SP600125, SB203580, PDTC and mouse antibodies against mouse phospho-ERK1/2, phospho-JNK1/2, phospho-p38 and actin were purchased from Sigma-Aldrich (St. Louis, MO). Gö6976, Rottlerin, Wortmannin, LY294002, sc-3060, and antibodies against phospho-PKCα/δ, IL-1β, iNOS, COX-2 and IRAK2, as well as secondary antibodies were obtained from Santa Cruz Biotechnology (Santa Cruz, CA). IL-1β, IL-6, TNF-α and MCP-1 ELISA kits were purchased from R&D Systems (Minneapolis, MN). Pierce™ LAL Chromogenic Endotoxin Quantitation Kit was purchased from Thermo Scientific (Rockford, IL).
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2

Ingenol Compounds Modulate HIV Latency

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The natural compound ingenol-3-dodecatrienoates extracted from Euphorbiaceae and the derivate esters Ingenol A, B and C were isolated by Kyolab Laboratories (São Paulo, Brazil). Ingenol 3,20-dibenzoate, PMA, prostatin and the PKC inhibitors Gö 6976, Gö 6983 and Ro-31–8220 were obtained from Santa Cruz Biotechnology. SAHA was obtained from SelleckChem (Houston, USA). All these compounds were diluted to specific concentrations in DMEM or RPMI, and the final concentration of solvent (DMSO) was always less than 1%. We used 20 ng/ml of TNF-α (eBiosciences) as positive control of reactivation. Levels of P-TEFb components were evaluated by immunoblotting using specific antibodies anti-CDK9 and anti-Cyc T1 (Santa Cruz Biotechnologies, cat. number 484 and 10750, respectively). Anti-tubulin (Abcam, cat. number 56676) was used to normalize proteins level.
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