Fig. 1

Linc00337 is highly expressed and predicts poor prognosis in PDAC patients. a, Linc00337 expression in PDAC (n = 179) and normal tissues (n = 171). b-c, TCGA data depicting that high Linc00337 expression predicts poor overall survival (OS, b) and disease-free survival (DFS, c). d, Schematic diagram of Linc00337 variants (337 V1, 337 V2, 337 V3) from the Ensembl database. Red arrows indicate primer locations. e, qRT-PCR indicating that 337 V2 is significantly elevated in 18 paired malignant PDAC tissues. f, Pie chart depicting Linc00337 V2 distribution in PDAC tissues. N, normal; T, tumor