CUT&Tag analysis of H3K4me3, H3K27Ac,H2A119Ub and H3K27me3 in treated KPC1199 murine PDAC cell line

To gain mechanistic insight into how Epigenetic factors reprogramming tumor immune microenvironment in response to IFNγ stimulation. we performed CUT&Tag sequencing in murine PDAC cells.For comparison of the transcription profile between IFNγ-PD-L1all and IFNγ+PD-L1all cells, we treated KPC1199 cells with vehicle control or 10 ng/mL recombinant mouse IFNγ for 20 hours and harvested them. For comparison of PD-L1hi with PD-L1all, cells were either sorted with the top 15% PD-L1+ or total of IFNγ+PD-L1all PDAC cells, and freshly collected as soon as possible. Hyperactive pA-Tn5 Transposase for CUT&Tag kit from Vazyme (TD901), and antibodies against H3K4me3 from Abcam (ab213224), H3K27Ac from Abcam (ab4729),H2A119Ub from Cell Signaling (8240T) and H3K27me3 from Abcam (ab6002) were employed. Trueprep index kit v2 and v3 for illumina were used to establish DNA library.