Long non-coding RNAs as biomarkers for diagnosis and prognosis in HPV-associated cervical cancer: A systematic scoping review
Abstract
Background: Long non-coding RNAs (lncRNAs) are emerging regulators of HPV-driven carcinogenesis with potential diagnostic and prognostic value in cervical cancer (CC). A contemporary synthesis of clinical and mechanistic evidence is necessary to prioritize candidates for translational development.
Methods: We conducted a systematic scoping review of studies assessing lncRNAs in HPV-associated CC. Searches across major databases yielded 556 records; after de-duplication (n = 220) and screening, 154 full texts were assessed, and 27 studies met the inclusion criteria. No formal quality or risk-of-bias assessment was performed, consistent with the scoping review framework. The extracted data included study identifiers, lncRNA identity, HPV association, sample type/size, expression in HPV-positive disease, diagnostic metrics (AUC/sensitivity/specificity), prognostic measures (survival statistics), and mechanistic findings.
Results: The 27 studies described 29 unique lncRNAs, which were upregulated in 75% and downregulated in 25% of the studies. Tissue-derived analyses predominated (21 studies), with cell line experiments in 13 studies and circulating assays in a minority (serum 3; plasma 2). Diagnostic performance was reported in 13/27 studies (∼48%), and prognostic associations were reported in 22/27 (∼81.5%). MALAT1 and GATA6-AS1 were each evaluated in two independent studies, whereas HOTAIR was investigated in two studies with different types of evidence. Mechanistic data…
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