SynthesisInternational journal of molecular sciences2026
Cell-Free DNA Fragmentation Patterns as Biomarkers for Human Papillomavirus-Related Cancers: A Systematic Review of Methodological Diversity and Diagnostic Performance.
Synthesis in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Novel blood biomarkers are crucial for HPV-related cancers to overcome the limitations of imaging and biopsies. This review evaluates the diagnostic performance of circulating cell-free DNA (cfDNA) fragmentomic patterns, distinguishing host-genome integrity from specific viral signatures. Following PRISMA guidelines, we searched PubMed, EMBASE, and Web of Science up to February 2026. Methodological quality was assessed via QUADAS-2, and diagnostic performance was synthesized using a random-effects model. From 489 records, six studies (215 patients, 209 controls) met inclusion criteria. Lacking host-derived fragmentomics data, the analysis focused exclusively on the structural size profiles of circulating viral DNA (cfHPV-DNA). Meta-analysis of four cohorts specifically evaluating these viral fragmentation patterns yielded a pooled Diagnostic Odds Ratio (DOR) of 205.73 (95% CI: 44.72-946.38). Specificity was robust (~100%), with high sensitivity (>90%) for macroscopic disease. However, sensitivity decreased in low-tumor-burden cohorts. cfHPV-DNA fragmentation patterns shows promising diagnostic potential for macroscopic HPV-driven malignancies. However, further studies must determine whether fragment sizing truly outperforms binary viral detection and correlates with disease severity. Furthermore, while current assays exploit the analytical simplicity of viral targets, host-derived fragmentomics remains an overlooked compartment that warrants exploration to determine its true clinical value regarding underlying tumor dynamics. Systematic Review Registration: PROSPERO, identifier: CRD420251052768.
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