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Article Abstract
Immune checkpoint inhibitor (ICI) therapy serves as a standard treatment for advanced or recurrent malignant melanoma. Tumour neoantigenicity is an important factor for the effectiveness of the ICI therapy. However, the absence of reliable biomarkers to predict ICI therapy efficacy remains an unresolved challenge. REV7 is a subunit of mutagenic DNA polymerase ζ and plays a role in generating genetic alterations following DNA damage. In this study, we examined REV7 as a potential predictive biomarker for ICI therapy in melanoma. Using RNA in situ hybridisation, we assessed REV7 expression in melanomas from 42 patients who received ICI therapy. Our analysis revealed that high REV7 expression correlated significantly with improved progression-free survival, durable clinical benefit and favourable clinical outcomes according to response evaluation criteria in solid tumours. These findings suggest that REV7 may be a potential predictive biomarker for ICI therapy response in melanoma.
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| http://dx.doi.org/10.1136/jcp-2025-210213 | DOI Listing |
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