B KRT7 APOC1 MSLN CLDN4 UBE2C UBD GDF15 MISP MMP7 EPCAM REG4 KRT17 KRT18 MMP11 MUC13 MYBL2 LGALS4 ETV4 COL1A1 MUC3A CTHRC1 HOXA10 HOXC10 CLDN1 CXCL1 TOP2A TPX2 SOX9 AGR2 EPHB2 CDKN2A PPP1R1B CLDN7 GRIN2D APOE BGN MKI67 MARCKSL1 SPP1 PKMYT1 FOXM1 CDC20 VIL1 HNF4A GPRC5A CLDN2 MMP1 CHI3L1 CRYAB ANGPTL1 PSD RBPMS2 SOSTDC1 C16orf89 TCEAL2 PRIMA1 MAMDC2 PLIN4 FXYD1 HBA2 CFD HBA1 PLN SST PI16 LMOD1 SFRP1 PGM5−AS1 HSPB8 PNCK SYNPO2 ADH1B PPP1R1APGM5 FHL1 ATP4A CKB CCL14 SYNM GIF HSPB6 HBB CNN1 MYOC ATP4B DPT ACTG2 MYH11 GKN2 C2orf40 MAL PGA5 GKN1 PGA4 PGA3 0 3 6 9 12 −4 −2 0 2 4 log2(Fold Change) −log10( p −value) DEGs of tumor versus paired normal samples in TCGA dataset A Normal Tumor −2 −1 0 1 2 3 D Surgical resected samples Targeted biopsies samples under magnifying endoscopy p = 3.1e-06 p = 0.001 0 5 10 Tumor Normal REG4 0.0 2.5 5.0 7.5 10.0 Tumor Normal CLDN7 p = 0.0045 0 5 10 15 Tumor Normal PGA3 p = 0.0037 0 5 10 15 Tumor Normal GKN1 Malignant epithelial cells Non-malignant epithelial cells Top 50 genes in tumor Top 50 genes in normal Scaled exp CG(97%) DGC(2%) IGC1(67%) IGC2(34%) IGC3(50%) IGC4(1%) IGC5(15%) MGC1(83%) MGC2(39%) MGC3(33%) NC1(98%) NC2(99%) C BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) Gut doi: 10.1136/gutjnl-2019-320368 –12. :1 70 2021; Gut , et al. Zhang M