ArticleTumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine2016
Let-7a-3 hypomethylation is associated with favorable/intermediate karyotypes but not with survival in acute myeloid leukemia.
Article in Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 6 citations in OpenAlex.
- Functional Significance and Therapeutic Potential of miRNA-20b-5p in Esophageal Squamous Cell Carcinoma.Molecular therapy. Nucleic acids · 2020Article
- In Silico Prediction of Small Molecule-miRNA Associations Based on the HeteSim Algorithm.Molecular therapy. Nucleic acids · 2019Article
- Promoter hypomethylation mediated upregulation of MicroRNA-10b-3p targets FOXO3 to promote the progression of esophageal squamous cell carcinoma (ESCC).Journal of experimental & clinical cancer research : CR · 2018Article
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12 authors at 2 institutions in 1 country.
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Abstract
Aberrant methylation of let-7a-3 promoter has been observed in various malignancies. However, the clinical relevance of let-7a-3 methylation remains poorly known in acute myeloid leukemia (AML). This study was to investigate the let-7a-3 methylation status and to explore its clinical significance in AML. let-7a-3 promoter was significantly hypomethylated in AML patients compared to controls (median 4.51 vs 0.49) (P = 0.0003). Receiver operating characteristic curve (ROC) analysis discriminated all patients or cytogenetically normal patients from controls with an areas under the ROC curve (AUC) of 0.737 or 0.783, respectively (P < 0.001). Patients with favorable/intermediate karyotypes had significantly higher let-7a-3 unmethylation than controls. Patients with DNMT3A mutations had a trend of high level of let-7a-3 unmethylation than did those with wild-type DNMT3A (median 6.76 vs 3.66, P = 0.096). There was no significant difference in overall survival between patients with and without hypomethylated let-7a-3 (median 12 vs 5 months, P = 0.103). No correlation was observed between the level of let-7a-3 expression and let-7a-3 unmethylation in AML samples (R = 0.197, P = 0.150). However, the level of let-7a-3 expression was increased in a dose-dependent manner in THP-1 line treated with 5-aza-dC, while the methylation density of let-7a-3 promoter decreased with 5-aza-dC dose. Our findings suggest that let-7a-3 hypomethylation is associated with favorable and intermediate karyotypes but not a prognostic predictor for AML patients. Let-7a-3 expression may be partially regulated by promoter methylation.
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