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World J Gastrointest Oncol. Mar 15, 2026; 18(3): 115835
Published online Mar 15, 2026. doi: 10.4251/wjgo.v18.i3.115835
Table 3 Therapy resistance mediated by gastric cancer stem cells gene-level insights
Gene/marker
Contribution to therapy resistance
CD133, CD44Enriched after chemotherapy (cisplatin/oxaliplatin); mediate chemoresistance and tumor regrowth
GPX4, OTUD5, POLQ, DHODHProtect GCSCs from ferroptosis; therapeutic vulnerability for drug development
PD-L1Enhances immune evasion and CSC survival; predicts poor response to immunotherapy
TAP1 (low expression)Impairs antigen presentation, promoting immune escape
AQP5, beclin-1, ULK1Autophagy regulators that sustain stemness under stress and confer resistance
CYB5R1Links redox balance to stemness and chemoresistance; high expression predicts poor survival


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