ArticleCancer diagnosis & prognosis
Putative Prognostic Value of miR-15a and miR-221 in Cervical Squamous Cell Carcinoma and Endocervical Adenocarcinoma.
Article in Cancer diagnosis & prognosis. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Background/Aim: Cervical cancer remains a major global health burden among women, with high morbidity and mortality driven by dysregulation of key cell cycle regulatory pathways. MicroRNAs (miRNAs) act as post-transcriptional regulators of genes controlling cell proliferation and differentiation. This study analyzed the expression and prognostic significance of six cell cycle-related miRNAs (hsa-miR-15a, hsa-miR-93, hsa-miR-106b, hsa-miR-195, hsa-miR-221, and hsa-miR-222) in a cervical squamous cell carcinoma and endocervical adenocarcinoma cohort (TCGA-CESC) obtained from TCGA data. Materials and Methods: Expression data from 306 CESC tumor tissues and two normal cervical tissue samples were retrieved from TCGA Results: Among the analyzed miRNAs, hsa-miR-15a, hsa-miR-106b, hsa-miR-221, and hsa-miR-222 were significantly up-regulated in CESC, whereas hsa-miR-195 was significantly down-regulated. Age-stratified analysis demonstrated higher expression of hsa-miR-15a, hsa-miR-106b, and hsa-miR-222 in younger and middle-aged patients, suggesting age-dependent modulation of cell cycle miRNAs. Across tumor stages and grades in CESC, hsa-miR-15a, hsa-miR-106b, hsa-miR-221, and hsa-miR-222 were significantly up-regulated in Stage II and in moderately differentiated tumors (Grades 2-3), whereas hsa-miR-195 remained consistently down-regulated across all stages and lower tumor grades. Kaplan-Meier survival analysis demonstrated that high expression of hsa-miR-15a ( Conclusion: Dysregulated expression of cell-cycle-related miRNAs, particularly hsa-miR-15a and hsa-miR-221, may contribute to CESC progression and serve as potential prognostic biomarkers.
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