Journal: Journal of Advanced Research
Article Title: WTAP/YTHDF1-mediated m 6 A modification amplifies IFN-γ-induced immunosuppressive properties of human MSCs
doi: 10.1016/j.jare.2024.06.019
Figure Lengend Snippet: WTAP is required for IFN-γ-licensing immunosuppressive process in hUC-MSCs. (A) log2 (FC) of differential expressed genes of hUC-MSCs with and without IFN-γ (I) treatment (fold change > 2, FDR < 0.05). (B) The correlation of log2 (FC) of differentially expressed transcripts in hUC-MSCs with or without IFN-γ treatment and log2 (FC) of differentially m 6 A modification transcripts in hUC-MSCs with or without IFN-γ treatment are indicated (|log FC| ≥ 1; p-value < 0.05). Group 1 (red) were those transcripts that were upregulated in both RNA-seq and epitranscriptomic microarray; Group 2 (blue) were transcripts that were down-regulated in both groups. (C) Heatmap of representative IFN-γ-licensing immunosuppressive process associated genes by epitranscriptomic microarray. (D) Western blotting analysis of m 6 A writers (METTL3, METTL14, and WTAP) in hUC-MSCs with or without IFN-γ induction. (E) qRT–PCR analysis of the relative mRNA levels of m 6 A writers in hUC-MSCs with or without IFN-γ induction (n = 3). (F) The correlation of log2 (FC) of differentially expressed transcripts in hUC-MSCs with WTAP knockdown (WTAP-KD) and log2 (FC) of differentially m 6 A modification transcripts in hUC-MSCs with WTAP knockdown are indicated (|log FC| ≥ 1; p-value < 0.05). (G) Venn diagram of hypomethylated targets in WTAP-KD hUC-MSCs and hypermethylated-up or hypomethylated-up genes in IFN-γ-licensing hUC-MSCs. Statistical significance was calculated by Student’s t -test. *P < 0.05, **P < 0.01, ***P < 0.001, ns, non-significant. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
Article Snippet: In the hybridization step, the cRNA was merged to the Arraystar Human m 6 A Epitranscriptomic Microarray (8 × 60 K; Arraystar, Rockville, USA).
Techniques: Modification, RNA Sequencing, Microarray, Western Blot, Quantitative RT-PCR, Knockdown