Journal: Clinical and Translational Medicine
Article Title: NLK facilitates Caspase‐8 activation to drive macrophage PANoptosis in sepsis
doi: 10.1002/ctm2.70616
Figure Lengend Snippet: NLK deficiency impairs PANoptosome assembly and enhances RIPK1/3‐dependent necrosome formation in macrophages. (A, B) Representative immunoblots of FADD‐ and RIPK1‐associated complexes, together with corresponding input samples, in macrophages isolated from WT and NKO mice at 3 h post‐LPS. Co‐IP were probed for NLK, Caspase‐8, FADD, RIPK1, p‐RIPK1, RIPK3, and p‐RIPK3. (C–I) Quantification analysis of Caspase‐8, FADD, RIPK1, p‐RIPK1, RIPK3, and p‐RIPK3 in FADD‐associated complexes ( n = 3 independent biological replicates). (J–L) Quantification analysis of p‐RIPK1, RIPK3, and p‐RIPK3 in RIPK1‐associated complexes ( n = 3 independent biological replicates). (M) Representative confocal immunofluorescence images showing the co‑localisation of RIPK3 (cyan), ASC (green), and Caspase‑8 (red) in PBS‐ or LPS‐treated BMDMs. Merged images indicate RIPK3–ASC–Caspase‐8 colocalisation; boxed regions show magnified views. Scale bars: 25 µm (merged), 10 µm (zoomed). Statistical differences were analysed by one‑way ANOVA with Bonferroni's post hoc test, * p < .05 and ** p < .01.
Article Snippet: Antibodies against CD68 (28058‐1‐AP), Caspase‐1 (22915‐1‐AP), p‐RIPK1 (66854‐1‐Ig), FADD ( P14906 ‐1‐AP), HA‐Tag (51064‐2‐AP, 66006‐2‐Ig), Flag‐Tag (66008‐4‐Ig, 20543‐1‐AP), and IgG (B900620) were purchased from Proteintech Group, Inc. (Wuhan, China).
Techniques: Western Blot, Isolation, Co-Immunoprecipitation Assay, Immunofluorescence