Journal: PLOS Pathogens
Article Title: The non-structural protein of SFTSV activates NLRP1 and CARD8 inflammasome through disrupting the DPP9-mediated ternary complex
doi: 10.1371/journal.ppat.1013258
Figure Lengend Snippet: (A-B) ASC specks fluorescence microscopy images ( A ) and quantification ( B ) of A549-HA-NLRP1-Flag-ASC-GFP cells infected with SFTSV or without SFTSV (MOI = 0.5) for 24 h. Scale bar, 100 μm. (C-D) Detection of SFTSV NP ( C ) and IL-β production ( D ) in primary keratinocytes infected with SFTSV at different MOIs or stimulated with VbP (2 μM) for 24 h. (E-F) GSDMD cleavage ( E ) and LDH release ( F ) in primary keratinocytes infected with SFTSV (MOI = 1) or stimulated with VbP (5 μM) for 36 h. (G) Expression of NLRP1 in primary keratinocytes treated with lentivirus-mediated CRISPR-Cas9 and NLRP1 -specific single-guide RNA (sgRNA) or the non-targeting sgRNA control. (H) IL-1β production in wild-type or NLRP1-deficient primary keratinocytes infected with SFTSV (MOI = 1) or stimulated with VbP (2 μM) for 24 h. (I) Primary keratinocytes were infected with SFTSV at different MOIs for 24 h, endogenous NLRP1 was detected using N-terminal and C-terminal antibodies with Western blot, respectively. (J-K) Primary keratinocytes were infected with SFTSV (MOI = 1) and treated with MG132 (2 μM) for 24 h, IL-1β release ( J ) in the cell supernatant was measured with ELISA; endogenous NLRP1 ( K ) was detected with Western blot. All data represent three independent experiments and presented as mean±s.d. * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001, ns , not significant. For statistical analysis, one-way ANOVA in (D, J), two-tailed unpaired Student’s t -test in (B, F, H).
Article Snippet: Human NLRP1 (HG30111-NY), ASC (HG11175-CY), pro-Casp-1 (HG11148-NF), GSDMD (HG25207-NF), pro-IL-1β (HG10139-NM), CARD8 (HG12619-NM) and DPP9 (HG11418-NF) plasmid and the ASC-GFP (HG11175-ACGLN) lentiviral vector were purchased from Sino Biological (Beijing, China).
Techniques: Fluorescence, Microscopy, Infection, Expressing, CRISPR, Control, Western Blot, Enzyme-linked Immunosorbent Assay, Two Tailed Test