...patients in the ERO1Lhigh group possessed a significantly lower response rate (31.0%) to immunotherapy compared with the ERO1Llow group (86.0%)....Our study provides clear insight into the potential role of ERO1L in tumor immunology. Overexpression of ERO1L was indicative of a hypoxia-induced immune-suppressive TIME, which was shown to confer resistance to immunotherapy in patients with LUAD.