Journal: Nature Communications
Article Title: Somatic NAP1L1 p.D349E promotes cardiac hypertrophy through cGAS-STING-IFN signaling
doi: 10.1038/s41467-025-58453-7
Figure Lengend Snippet: A , B Co-IP of the Nap1l1 p.D349E or wild type with H2a, H2a.x, H2a.z, and H2b; The antibodies used for pulling were IgG, HA, and Flag, and IgG is the isotype control group. N = 3 for each group, and two-tailed unpaired Student’s t -test was applied; C Agarose gel electrophoresis showing the nucleosome-bound DNA content, representing the number of nucleosomes in the WT and MT group. N = 4 for each group, and two-tailed unpaired Student’s t -test was applied; D , E , Western blot, qPCR analysis, and quantification of the levels of the γ-H2ax protein. N = 3 for each group, and two-tailed unpaired Student’s t -test was applied; F , G Representative immunofluorescence staining showing the levels of γ-H2ax, cGAS, and dsDNA; H , I Relative concentration of second messenger cGAMP. For H , n = 6 and for I , n = 4, and two-tailed unpaired Student’s t -test were applied; J Representative immunofluorescence staining showing the levels of phalloidin; K , L Representative Western blot images and quantification showing cGAS, Sting, Tbk1, Ifna, and Ifnb, and phosphorylation of Sting, Tbk1 and Irf3 expression in the wild-type and Nap1l1 p.D349E groups. N = 3 for each group, and two-tailed unpaired Student’s t -test was applied; M qPCR analysis of Ifna, Ifnb, Il-6, Il-1b . N = 6 for each group, and two-tailed unpaired Student’s t -test was applied; N qPCR analysis of Ifit1, Ifit2, Ifi3, Zbp1, Isg15, Stat1 , and Il6 in influenced cardiomyocytes. N = 6 for each group, and two-tailed unpaired Student’s t -test was applied; O qPCR analysis of Ifit1, Ifit2, Ifi3, Isg15, Irf7, Il6 , and Il1b in influenced cardiac fibroblasts. N = 6 for each group, and two-tailed unpaired Student’s t -test was applied; P , Q qPCR analysis of Irf7, Il6, Stat1, Isg15, Ifit1 , and Ifit2 in influenced cardiomyocytes and cardiac fibroblasts. N = 6 for each group and a two-tailed unpaired Student’s t -test was applied. Data are presented as mean values +/− SEM.
Article Snippet: NRCMs were transfected with rat CMV-Nap1l1 D349E -Flag-EGFP or CMV-Nap1l1-HA-EGFP plasmids for 72 h. Immunoprecipitation was performed using an immunoprecipitation kit (Proteintech, #PK10008).
Techniques: Co-Immunoprecipitation Assay, Control, Two Tailed Test, Agarose Gel Electrophoresis, Western Blot, Immunofluorescence, Staining, Concentration Assay, Phospho-proteomics, Expressing