Abstract

<p>(A) Un-differentiated THP-1 cells were treated with the indicated stimuli for 6 hours. NLRP1 levels were measured by quantitative real-time PCR (qPCR) using cyclophillin A as an endogenous control. Semi-quantitative RT-PCR using a different NLRP1 primer set and GAPDH as a control is also shown. (B) HeLa cells were treated either with BFA or TG for the indicated times. NLRP1 mRNA levels were measured by qPCR and RT-PCR. Spliced and un-spliced XBP-1 forms were also evaluated by RT-PCR. (C) HCT116 cells were treated with the indicated stimuli for 24 hours. NLRP1 and NOD1 mRNA levels were measured by qPCR. (D) Cell lysates from wild-type or <i>NLRP1</i><sup><i>−/−</i></sup> HeLa, THP-1 and K562 cells, untreated or treated with BFA for 20 hours, were normalized for total protein content. Cell extracts were then subjected to SDS-PAGE/immunoblot analysis before and after immunoprecipitation with NLRP1 antibody. Vinculin was detected as loading control. NLRP1 mRNA levels were also measured by RT-PCR. Each panel is representative of at least three independent experiments. (DMSO: dimethyl sulfoxide, TM: tunicamycin, TG: thapsigargin, MSU: monosodium urate crystals, BFA: brefeldin A, PolyI:C: polyinosinic-polycytidylic acid, FLA: flagellin, MDP: muramyl dipeptide, R837: Imiquimod)</p

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