Journal: Frontiers in Immunology
Article Title: 3-Hydroxystearic acid promotes cholesterol efflux and attenuates atherosclerosis via the ALKBH5/PAX-8/ABCA1 pathway
doi: 10.3389/fimmu.2026.1750021
Figure Lengend Snippet: PAX-8 binds to and regulates ABCA1 expression. (A) Predicted binding sites between PAX-8 and ABCA1 in humans. (B) Predicted binding sites between PAX-8 and ABCA1 in mice. (C) Western blot analysis of PAX-8 and ABCA1 protein expression in foam cells following PAX-8 overexpression. (D) Quantitative analysis of PAX-8 protein expression (Panel C). (E) RT-qPCR analysis of ABCA1 mRNA expression in foam cells after PAX-8 overexpression. (F) Quantitative analysis of ABCA1 protein expression (Panel C). ** P < 0.01 vs. LV-NC, n = 3. (G) ChIP-Seq identification of PAX-8 binding to the ABCA1 locus. Genomic tracks showing PAX-8 binding to the ABCA1 locus in the Input (negative control, top) and ChIP (PAX-8-enriched, bottom) groups. The y-axis indicates relative enrichment of ChIP-Seq signals. The x-axis represents genomic coordinates. (H) ChIP-qPCR validation of PAX-8 targeting regulation of ABCA1. ** P < 0.01 vs. Input, n = 3.
Article Snippet: Primary antibodies diluted in antibody dilution buffer were applied as follows: ABCA1 (Abcam, 1:1000), PAX-8 (Proteintech, 1:3000), ALKBH5 (Proteintech, 1:5000), ELAVL1 (Proteintech, 1:5000); GAPDH (Proteintech, 1:20, 000) and α-Tubulin (Proteintech, 1:20, 000) served as loading controls.
Techniques: Expressing, Binding Assay, Western Blot, Over Expression, Quantitative RT-PCR, ChIP-sequencing, Negative Control, ChIP-qPCR, Biomarker Discovery