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‹ Fri · 22 May 2026
Promising but preliminary

Beyond sex determination: the Y chromosome in male cancers

Y chromosome loss in cancer blood samples emerges as a new biomarker to predict who might respond to immunotherapy or develop blood cancers.

This Nature Reviews Cancer paper establishes loss of the Y chromosome (LOY) as a clinically relevant somatic alteration in male cancers, demonstrating associations with hematologic malignancy susceptibility, impaired immune surveillance, and variable prognosis in solid tumors. New liquid biopsy and single-cell sequencing tools now enable precise LOY quantification, positioning it as a potential blood biomarker for cancer risk stratification and immunotherapy response prediction.

What the study was

Study design
Comprehensive narrative review
Population
Male cancer patients
Category
Genomics/Precision Medicine
Maturity
Exploratory
Journal
Nat Rev Cancer

Why it surfaced

Nat Rev Cancer review on LOY; first comprehensive biomarker framing of Y chromosome in cancer; implications for hematologic malignancy risk and immunotherapy.

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